/* src/vm/jit/x86_64/codegen.c - machine code generator for x86_64
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
- C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
- E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
- J. Wenninger, Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008, 2009, 2010
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Andreas Krall
- Christian Thalinger
-
- Changes: Christian Ullrich
- Edwin Steiner
-
- $Id: codegen.c 5839 2006-10-26 11:57:16Z twisti $
-
*/
#include <assert.h>
#include <stdio.h>
+#include <stdint.h>
#include "vm/types.h"
+#include "vm/os.hpp"
#include "md-abi.h"
#include "vm/jit/x86_64/codegen.h"
#include "vm/jit/x86_64/emit.h"
-#include "mm/memory.h"
-#include "native/jni.h"
-#include "native/native.h"
+#include "mm/memory.hpp"
-#if defined(ENABLE_THREADS)
-# include "threads/native/lock.h"
-#endif
+#include "native/localref.hpp"
+#include "native/native.hpp"
+
+#include "threads/lock.hpp"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/jit/builtin.hpp"
+#include "vm/exceptions.hpp"
#include "vm/global.h"
-#include "vm/loader.h"
+#include "vm/loader.hpp"
#include "vm/options.h"
+#include "vm/primitive.hpp"
#include "vm/statistics.h"
-#include "vm/stringlocal.h"
-#include "vm/vm.h"
+#include "vm/string.hpp"
+#include "vm/vm.hpp"
+
+#include "vm/jit/abi.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
+#include "vm/jit/code.hpp"
+#include "vm/jit/codegen-common.hpp"
#include "vm/jit/dseg.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/jit.hpp"
+#include "vm/jit/linenumbertable.hpp"
#include "vm/jit/methodheader.h"
-#include "vm/jit/parse.h"
-#include "vm/jit/patcher.h"
+#include "vm/jit/parse.hpp"
+#include "vm/jit/patcher-common.hpp"
#include "vm/jit/reg.h"
-#include "vm/jit/replace.h"
-
-#if defined(ENABLE_LSRA)
-# include "vm/jit/allocator/lsra.h"
-#endif
-
-
-/* codegen *********************************************************************
-
- Generates machine code.
+#include "vm/jit/stacktrace.hpp"
+#include "vm/jit/trap.hpp"
-*******************************************************************************/
-bool codegen(jitdata *jd)
+/**
+ * Generates machine code for the method prolog.
+ */
+void codegen_emit_prolog(jitdata* jd)
{
- methodinfo *m;
- codeinfo *code;
- codegendata *cd;
- registerdata *rd;
- s4 len, s1, s2, s3, d, disp;
- u2 currentline;
- ptrint a;
- varinfo *var, *var1, *var2, *dst;
- basicblock *bptr;
- instruction *iptr;
- exception_entry *ex;
- methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
- unresolved_method *um;
- builtintable_entry *bte;
- methoddesc *md;
- fieldinfo *fi;
- unresolved_field *uf;
- s4 fieldtype;
- rplpoint *replacementpoint;
- s4 varindex;
-
- /* get required compiler data */
-
- m = jd->m;
- code = jd->code;
- cd = jd->cd;
- rd = jd->rd;
-
- /* prevent compiler warnings */
-
- d = 0;
- lm = NULL;
- um = NULL;
- bte = NULL;
-
- {
- s4 i, p, t, l;
- s4 savedregs_num;
-
- savedregs_num = 0;
-
- /* space to save used callee saved registers */
-
- savedregs_num += (INT_SAV_CNT - rd->savintreguse);
- savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
-
- cd->stackframesize = rd->memuse + savedregs_num;
-
-#if defined(ENABLE_THREADS)
- /* space to save argument of monitor_enter */
-
- if (checksync && (m->flags & ACC_SYNCHRONIZED))
- cd->stackframesize++;
-#endif
-
- /* Keep stack of non-leaf functions 16-byte aligned for calls into
- native code e.g. libc or jni (alignment problems with
- movaps). */
-
- if (!jd->isleafmethod || opt_verbosecall)
- cd->stackframesize |= 0x1;
-
- /* create method header */
-
- (void) dseg_addaddress(cd, code); /* CodeinfoPointer */
- (void) dseg_adds4(cd, cd->stackframesize * 8); /* FrameSize */
-
-#if defined(ENABLE_THREADS)
- /* IsSync contains the offset relative to the stack pointer for the
- argument of monitor_exit used in the exception handler. Since the
- offset could be zero and give a wrong meaning of the flag it is
- offset by one.
- */
-
- if (checksync && (m->flags & ACC_SYNCHRONIZED))
- (void) dseg_adds4(cd, (rd->memuse + 1) * 8); /* IsSync */
- else
-#endif
- (void) dseg_adds4(cd, 0); /* IsSync */
-
- (void) dseg_adds4(cd, jd->isleafmethod); /* IsLeaf */
- (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
- (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
-
- (void) dseg_addlinenumbertablesize(cd);
-
- (void) dseg_adds4(cd, jd->exceptiontablelength); /* ExTableSize */
-
- /* create exception table */
-
- for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
- dseg_addtarget(cd, ex->start);
- dseg_addtarget(cd, ex->end);
- dseg_addtarget(cd, ex->handler);
- (void) dseg_addaddress(cd, ex->catchtype.any);
- }
-
- /* generate method profiling code */
-
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
- /* count frequency */
-
- M_MOV_IMM(code, REG_ITMP3);
- M_IINC_MEMBASE(REG_ITMP3, OFFSET(codeinfo, frequency));
-
- PROFILE_CYCLE_START;
- }
+ varinfo* var;
+ methoddesc* md;
+ int32_t s1;
+ int32_t p, t, l;
+ int32_t varindex;
+ int i;
+
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+ registerdata* rd = jd->rd;
/* create stack frame (if necessary) */
s1 = md->params[p].regoff;
if (IS_INT_LNG_TYPE(t)) { /* integer args */
- s2 = rd->argintregs[s1];
if (!md->params[p].inmemory) { /* register arguments */
- if (!IS_INMEMORY(var->flags)) { /* reg arg -> register */
- M_INTMOVE(s2, var->vv.regoff);
-
- } else { /* reg arg -> spilled */
- M_LST(s2, REG_SP, var->vv.regoff * 8);
- }
-
- } else { /* stack arguments */
- if (!IS_INMEMORY(var->flags)) { /* stack arg -> register */
+ if (!IS_INMEMORY(var->flags))
+ M_INTMOVE(s1, var->vv.regoff);
+ else
+ M_LST(s1, REG_SP, var->vv.regoff);
+ }
+ else { /* stack arguments */
+ if (!IS_INMEMORY(var->flags))
/* + 8 for return address */
- M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8 + 8);
-
- } else { /* stack arg -> spilled */
- var->vv.regoff = cd->stackframesize + s1 + 1;
- }
+ M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1 + 8);
+ else
+ var->vv.regoff = cd->stackframesize * 8 + s1 + 8;
}
-
- } else { /* floating args */
+ }
+ else { /* floating args */
if (!md->params[p].inmemory) { /* register arguments */
- s2 = rd->argfltregs[s1];
- if (!IS_INMEMORY(var->flags)) { /* reg arg -> register */
- M_FLTMOVE(s2, var->vv.regoff);
-
- } else { /* reg arg -> spilled */
- M_DST(s2, REG_SP, var->vv.regoff * 8);
- }
-
- } else { /* stack arguments */
- if (!IS_INMEMORY(var->flags)) { /* stack-arg -> register */
- M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8 + 8);
-
- } else {
- var->vv.regoff = cd->stackframesize + s1 + 1;
- }
+ if (!IS_INMEMORY(var->flags))
+ emit_fmove(cd, s1, var->vv.regoff);
+ else
+ M_DST(s1, REG_SP, var->vv.regoff);
+ }
+ else { /* stack arguments */
+ if (!IS_INMEMORY(var->flags))
+ M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1 + 8);
+ else
+ var->vv.regoff = cd->stackframesize * 8 + s1 + 8;
}
}
- } /* end for */
-
- /* save monitorenter argument */
-
-#if defined(ENABLE_THREADS)
- if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
- /* stack offset for monitor argument */
-
- s1 = rd->memuse;
-
- if (opt_verbosecall) {
- M_LSUB_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
-
- for (p = 0; p < INT_ARG_CNT; p++)
- M_LST(rd->argintregs[p], REG_SP, p * 8);
-
- for (p = 0; p < FLT_ARG_CNT; p++)
- M_DST(rd->argfltregs[p], REG_SP, (INT_ARG_CNT + p) * 8);
-
- s1 += INT_ARG_CNT + FLT_ARG_CNT;
- }
+ }
+}
- /* decide which monitor enter function to call */
- if (m->flags & ACC_STATIC) {
- M_MOV_IMM(&m->class->object.header, REG_A0);
- }
- else {
- M_TEST(REG_A0);
- M_BEQ(0);
- codegen_add_nullpointerexception_ref(cd);
- }
+/**
+ * Generates machine code for the method epilog.
+ */
+void codegen_emit_epilog(jitdata* jd)
+{
+ int32_t p;
+ int i;
- M_AST(REG_A0, REG_SP, s1 * 8);
- M_MOV_IMM(LOCK_monitor_enter, REG_ITMP1);
- M_CALL(REG_ITMP1);
+ // Get required compiler data.
+ codegendata* cd = jd->cd;
+ registerdata* rd = jd->rd;
- if (opt_verbosecall) {
- for (p = 0; p < INT_ARG_CNT; p++)
- M_LLD(rd->argintregs[p], REG_SP, p * 8);
+ p = cd->stackframesize;
- for (p = 0; p < FLT_ARG_CNT; p++)
- M_DLD(rd->argfltregs[p], REG_SP, (INT_ARG_CNT + p) * 8);
+ /* restore saved registers */
- M_LADD_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
- }
+ for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
+ p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
}
-#endif
-
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_enter(jd);
-#endif /* !defined(NDEBUG) */
-
+ for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
+ p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
}
- /* end of header generation */
-
- replacementpoint = jd->code->rplpoints;
-
- /* walk through all basic blocks */
-
- for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
-
- bptr->mpc = (u4) ((u1 *) cd->mcodeptr - cd->mcodebase);
-
- if (bptr->flags >= BBREACHED) {
-
- /* branch resolving */
-
- branchref *bref;
- for (bref = bptr->branchrefs; bref != NULL; bref = bref->next) {
- gen_resolvebranch((u1 *) cd->mcodebase + bref->branchpos,
- bref->branchpos,
- bptr->mpc);
- }
-
- /* handle replacement points */
-
-#if 0
- if (bptr->bitflags & BBFLAG_REPLACEMENT) {
- replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
-
- replacementpoint++;
-
- assert(cd->lastmcodeptr <= cd->mcodeptr);
- cd->lastmcodeptr = cd->mcodeptr + 5; /* 5 byte jmp patch */
- }
-#endif
-
- /* copy interface registers to their destination */
-
- len = bptr->indepth;
- MCODECHECK(512);
-
- /* generate basicblock profiling code */
-
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
- /* count frequency */
-
- M_MOV_IMM(code->bbfrequency, REG_ITMP3);
- M_IINC_MEMBASE(REG_ITMP3, bptr->nr * 4);
-
- /* if this is an exception handler, start profiling again */
-
- if (bptr->type == BBTYPE_EXH)
- PROFILE_CYCLE_START;
- }
-
-#if defined(ENABLE_LSRA)
- if (opt_lsra) {
- while (len) {
- len--;
- src = bptr->invars[len];
- if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
- if (bptr->type == BBTYPE_EXH) {
-/* d = reg_of_var(rd, src, REG_ITMP1); */
- if (!IS_INMEMORY(src->flags))
- d= src->vv.regoff;
- else
- d=REG_ITMP1;
- M_INTMOVE(REG_ITMP1, d);
- emit_store(jd, NULL, src, d);
- }
- }
- }
-
- } else {
-#endif
-
- while (len) {
- len--;
- var = VAR(bptr->invars[len]);
- if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
- if (bptr->type == BBTYPE_EXH) {
- d = codegen_reg_of_var(0, var, REG_ITMP1);
- M_INTMOVE(REG_ITMP1, d);
- emit_store(jd, NULL, var, d);
- }
- }
- else {
- assert((var->flags & INOUT));
- }
- }
-#if defined(ENABLE_LSRA)
- }
-#endif
- /* walk through all instructions */
-
- len = bptr->icount;
- currentline = 0;
-
- for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
- if (iptr->line != currentline) {
- dseg_addlinenumber(cd, iptr->line);
- currentline = iptr->line;
- }
-
- MCODECHECK(1024); /* 1KB should be enough */
+ /* deallocate stack */
- switch (iptr->opc) {
- case ICMD_INLINE_START: /* internal ICMDs */
- case ICMD_INLINE_END:
- break;
+ if (cd->stackframesize)
+ M_AADD_IMM(cd->stackframesize * 8, REG_SP);
- case ICMD_NOP: /* ... ==> ... */
- break;
+ M_RET;
+}
- case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
+/**
+ * Generates a memory barrier to be used after volatile writes. It can be
+ * patched out later if the field turns out not to be volatile.
+ */
+void codegen_emit_patchable_barrier(instruction *iptr, codegendata *cd, patchref_t *pr, fieldinfo *fi)
+{
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ /* Align on word boundary */
+ if ((((intptr_t) cd->mcodeptr) & 3) >= 2)
+ emit_nop(cd, 4 - (((intptr_t) cd->mcodeptr) & 3));
+ /* Displacement for patching out MFENCE */
+ pr->disp_mb = (cd->mcodeptr - cd->mcodebase - pr->mpc);
+ }
+ if (INSTRUCTION_IS_UNRESOLVED(iptr) || fi->flags & ACC_VOLATILE)
+ M_MFENCE;
+}
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_TEST(s1);
- M_BEQ(0);
- codegen_add_nullpointerexception_ref(cd);
- break;
+/**
+ * Generates machine code for one ICMD.
+ */
+void codegen_emit_instruction(jitdata* jd, instruction* iptr)
+{
+ varinfo* var;
+ varinfo* dst;
+ builtintable_entry* bte;
+ methodinfo* lm; // Local methodinfo for ICMD_INVOKE*.
+ unresolved_method* um;
+ fieldinfo* fi;
+ unresolved_field* uf;
+ patchref_t* pr;
+ int32_t fieldtype;
+ int32_t s1, s2, s3, d;
+ int32_t disp;
+
+ // Get required compiler data.
+ codegendata* cd = jd->cd;
+
+ switch (iptr->opc) {
/* constant operations ************************************************/
- case ICMD_ICONST: /* ... ==> ..., constant */
-
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
- ICONST(d, iptr->sx.val.i);
- emit_store_dst(jd, iptr, d);
- break;
-
- case ICMD_LCONST: /* ... ==> ..., constant */
-
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
- LCONST(d, iptr->sx.val.l);
- emit_store_dst(jd, iptr, d);
- break;
-
case ICMD_FCONST: /* ... ==> ..., constant */
d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
- disp = dseg_addfloat(cd, iptr->sx.val.f);
+ disp = dseg_add_float(cd, iptr->sx.val.f);
emit_movdl_membase_reg(cd, RIP, -((cd->mcodeptr + ((d > 7) ? 9 : 8)) - cd->mcodebase) + disp, d);
emit_store_dst(jd, iptr, d);
break;
case ICMD_DCONST: /* ... ==> ..., constant */
d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
- disp = dseg_adddouble(cd, iptr->sx.val.d);
+ disp = dseg_add_double(cd, iptr->sx.val.d);
emit_movd_membase_reg(cd, RIP, -((cd->mcodeptr + 9) - cd->mcodebase) + disp, d);
emit_store_dst(jd, iptr, d);
break;
d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
-/* PROFILE_CYCLE_STOP; */
+ constant_classref *cr = iptr->sx.val.c.ref;
+ disp = dseg_add_unique_address(cd, cr);
- codegen_addpatchref(cd, PATCHER_aconst,
- iptr->sx.val.c.ref, 0);
+/* PROFILE_CYCLE_STOP; */
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
+ cr, disp);
/* PROFILE_CYCLE_START; */
- M_MOV_IMM(NULL, d);
-
- } else {
- if (iptr->sx.val.anyptr == 0)
+ M_ALD(d, RIP, disp);
+ }
+ else {
+ if (iptr->sx.val.anyptr == 0) {
M_CLR(d);
- else
- M_MOV_IMM(iptr->sx.val.anyptr, d);
+ }
+ else {
+ disp = dseg_add_address(cd, iptr->sx.val.anyptr);
+ M_ALD(d, RIP, disp);
+ }
}
emit_store_dst(jd, iptr, d);
break;
- /* load/store/copy/move operations ************************************/
-
- case ICMD_ILOAD: /* ... ==> ..., content of local variable */
- case ICMD_ALOAD: /* s1 = local variable */
- case ICMD_LLOAD:
- case ICMD_FLOAD:
- case ICMD_DLOAD:
- case ICMD_ISTORE: /* ..., value ==> ... */
- case ICMD_ASTORE: /* dst = local variable */
- case ICMD_LSTORE:
- case ICMD_FSTORE:
- case ICMD_DSTORE:
- case ICMD_COPY:
- case ICMD_MOVE:
-
- emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
- break;
-
-
- /* pop operations *****************************************************/
-
- /* attention: double and longs are only one entry in CACAO ICMDs */
-
- case ICMD_POP: /* ..., value ==> ... */
- case ICMD_POP2: /* ..., value, value ==> ... */
-
- break;
-
-
/* integer operations *************************************************/
case ICMD_INEG: /* ..., value ==> ..., - value */
case ICMD_IDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
- var1 = VAROP(iptr->s1);
- var2 = VAROP(iptr->sx.s23.s2);
- dst = VAROP(iptr->dst);
-
- d = codegen_reg_of_dst(jd, iptr, REG_NULL);
- if (IS_INMEMORY(var1->flags))
- M_ILD(RAX, REG_SP, var1->vv.regoff * 8);
- else
- M_INTMOVE(var1->vv.regoff, RAX);
-
- if (IS_INMEMORY(var2->flags))
- M_ILD(REG_ITMP3, REG_SP, var2->vv.regoff * 8);
- else
- M_INTMOVE(var2->vv.regoff, REG_ITMP3);
-
- if (checknull) {
- M_ITEST(REG_ITMP3);
- M_BEQ(0);
- codegen_add_arithmeticexception_ref(cd);
- }
+ s1 = emit_load_s1(jd, iptr, RAX);
+ s2 = emit_load_s2(jd, iptr, REG_ITMP3);
+ d = codegen_reg_of_dst(jd, iptr, RAX);
- emit_alul_imm_reg(cd, ALU_CMP, 0x80000000, RAX); /* check as described in jvm spec */
- emit_jcc(cd, CC_NE, 4 + 6);
- emit_alul_imm_reg(cd, ALU_CMP, -1, REG_ITMP3); /* 4 bytes */
- emit_jcc(cd, CC_E, 3 + 1 + 3); /* 6 bytes */
+ M_INTMOVE(s1, RAX);
+ M_INTMOVE(s2, REG_ITMP3);
+ emit_arithmetic_check(cd, iptr, REG_ITMP3);
- emit_mov_reg_reg(cd, RDX, REG_ITMP2); /* save %rdx, cause it's an argument register */
- emit_cltd(cd);
- emit_idivl_reg(cd, REG_ITMP3);
+ M_MOV(RDX, REG_ITMP2); /* save RDX (it's an argument register) */
- if (IS_INMEMORY(dst->flags)) {
- emit_mov_reg_membase(cd, RAX, REG_SP, dst->vv.regoff * 8);
- emit_mov_reg_reg(cd, REG_ITMP2, RDX); /* restore %rdx */
+ M_ICMP_IMM(0x80000000, RAX); /* check as described in jvm spec */
+ M_BNE(4 + 6);
+ M_ICMP_IMM(-1, REG_ITMP3); /* 4 bytes */
+ M_BEQ(1 + 3); /* 6 bytes */
- } else {
- M_INTMOVE(RAX, dst->vv.regoff);
+ emit_cltd(cd); /* 1 byte */
+ emit_idivl_reg(cd, REG_ITMP3); /* 3 bytes */
- if (dst->vv.regoff != RDX) {
- emit_mov_reg_reg(cd, REG_ITMP2, RDX); /* restore %rdx */
- }
- }
+ M_INTMOVE(RAX, d);
+ emit_store_dst(jd, iptr, d);
+ dst = VAROP(iptr->dst);
+ if (IS_INMEMORY(dst->flags) || (dst->vv.regoff != RDX))
+ M_MOV(REG_ITMP2, RDX); /* restore RDX */
break;
case ICMD_IREM: /* ..., val1, val2 ==> ..., val1 % val2 */
- var1 = VAROP(iptr->s1);
- var2 = VAROP(iptr->sx.s23.s2);
- dst = VAROP(iptr->dst);
-
- d = codegen_reg_of_dst(jd, iptr, REG_NULL);
- if (IS_INMEMORY(var1->flags))
- M_ILD(RAX, REG_SP, var1->vv.regoff * 8);
- else
- M_INTMOVE(var1->vv.regoff, RAX);
-
- if (IS_INMEMORY(var2->flags))
- M_ILD(REG_ITMP3, REG_SP, var2->vv.regoff * 8);
- else
- M_INTMOVE(var2->vv.regoff, REG_ITMP3);
-
- if (checknull) {
- M_ITEST(REG_ITMP3);
- M_BEQ(0);
- codegen_add_arithmeticexception_ref(cd);
- }
-
- emit_mov_reg_reg(cd, RDX, REG_ITMP2); /* save %rdx, cause it's an argument register */
-
- emit_alul_imm_reg(cd, ALU_CMP, 0x80000000, RAX); /* check as described in jvm spec */
- emit_jcc(cd, CC_NE, 2 + 4 + 6);
-
+ s1 = emit_load_s1(jd, iptr, RAX);
+ s2 = emit_load_s2(jd, iptr, REG_ITMP3);
+ d = codegen_reg_of_dst(jd, iptr, RDX);
- emit_alul_reg_reg(cd, ALU_XOR, RDX, RDX); /* 2 bytes */
- emit_alul_imm_reg(cd, ALU_CMP, -1, REG_ITMP3); /* 4 bytes */
- emit_jcc(cd, CC_E, 1 + 3); /* 6 bytes */
+ M_INTMOVE(s1, RAX);
+ M_INTMOVE(s2, REG_ITMP3);
+ emit_arithmetic_check(cd, iptr, REG_ITMP3);
- emit_cltd(cd);
- emit_idivl_reg(cd, REG_ITMP3);
+ M_MOV(RDX, REG_ITMP2); /* save RDX (it's an argument register) */
- if (IS_INMEMORY(dst->flags)) {
- emit_mov_reg_membase(cd, RDX, REG_SP, dst->vv.regoff * 8);
- emit_mov_reg_reg(cd, REG_ITMP2, RDX); /* restore %rdx */
+ M_ICMP_IMM(0x80000000, RAX); /* check as described in jvm spec */
+ M_BNE(3 + 4 + 6);
+ M_CLR(RDX); /* 3 bytes */
+ M_ICMP_IMM(-1, REG_ITMP3); /* 4 bytes */
+ M_BEQ(1 + 3); /* 6 bytes */
- } else {
- M_INTMOVE(RDX, dst->vv.regoff);
+ emit_cltd(cd); /* 1 byte */
+ emit_idivl_reg(cd, REG_ITMP3); /* 3 byte */
- if (dst->vv.regoff != RDX) {
- emit_mov_reg_reg(cd, REG_ITMP2, RDX); /* restore %rdx */
- }
- }
+ M_INTMOVE(RDX, d);
+ emit_store_dst(jd, iptr, d);
+ dst = VAROP(iptr->dst);
+ if (IS_INMEMORY(dst->flags) || (dst->vv.regoff != RDX))
+ M_MOV(REG_ITMP2, RDX); /* restore RDX */
break;
case ICMD_IDIVPOW2: /* ..., value ==> ..., value >> constant */
case ICMD_LDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
- var1 = VAROP(iptr->s1);
- var2 = VAROP(iptr->sx.s23.s2);
- dst = VAROP(iptr->dst);
-
- d = codegen_reg_of_dst(jd, iptr, REG_NULL);
+ s1 = emit_load_s1(jd, iptr, RAX);
+ s2 = emit_load_s2(jd, iptr, REG_ITMP3);
+ d = codegen_reg_of_dst(jd, iptr, RAX);
- if (IS_INMEMORY(var1->flags))
- M_LLD(RAX, REG_SP, var1->vv.regoff * 8);
- else
- M_INTMOVE(var1->vv.regoff, RAX);
-
- if (IS_INMEMORY(var2->flags))
- M_LLD(REG_ITMP3, REG_SP, var2->vv.regoff * 8);
- else
- M_INTMOVE(var2->vv.regoff, REG_ITMP3);
+ M_INTMOVE(s1, RAX);
+ M_INTMOVE(s2, REG_ITMP3);
+ emit_arithmetic_check(cd, iptr, REG_ITMP3);
- if (checknull) {
- M_TEST(REG_ITMP3);
- M_BEQ(0);
- codegen_add_arithmeticexception_ref(cd);
- }
+ M_MOV(RDX, REG_ITMP2); /* save RDX (it's an argument register) */
/* check as described in jvm spec */
- disp = dseg_adds8(cd, 0x8000000000000000LL);
+ disp = dseg_add_s8(cd, 0x8000000000000000LL);
M_LCMP_MEMBASE(RIP, -((cd->mcodeptr + 7) - cd->mcodebase) + disp, RAX);
M_BNE(4 + 6);
- M_LCMP_IMM(-1, REG_ITMP3); /* 4 bytes */
- M_BEQ(3 + 2 + 3); /* 6 bytes */
-
- M_MOV(RDX, REG_ITMP2); /* save %rdx, cause it's an argument register */
- emit_cqto(cd);
- emit_idiv_reg(cd, REG_ITMP3);
-
- if (IS_INMEMORY(dst->flags)) {
- M_LST(RAX, REG_SP, dst->vv.regoff * 8);
- M_MOV(REG_ITMP2, RDX); /* restore %rdx */
+ M_LCMP_IMM(-1, REG_ITMP3); /* 4 bytes */
+ M_BEQ(2 + 3); /* 6 bytes */
- } else {
- M_INTMOVE(RAX, dst->vv.regoff);
+ emit_cqto(cd); /* 2 bytes */
+ emit_idiv_reg(cd, REG_ITMP3); /* 3 bytes */
- if (dst->vv.regoff != RDX) {
- M_MOV(REG_ITMP2, RDX); /* restore %rdx */
- }
- }
+ M_INTMOVE(RAX, d);
+ emit_store_dst(jd, iptr, d);
+ dst = VAROP(iptr->dst);
+ if (IS_INMEMORY(dst->flags) || (dst->vv.regoff != RDX))
+ M_MOV(REG_ITMP2, RDX); /* restore RDX */
break;
case ICMD_LREM: /* ..., val1, val2 ==> ..., val1 % val2 */
- var1 = VAROP(iptr->s1);
- var2 = VAROP(iptr->sx.s23.s2);
- dst = VAROP(iptr->dst);
-
- d = codegen_reg_of_dst(jd, iptr, REG_NULL);
-
- if (IS_INMEMORY(var1->flags))
- M_LLD(REG_ITMP1, REG_SP, var1->vv.regoff * 8);
- else
- M_INTMOVE(var1->vv.regoff, REG_ITMP1);
-
- if (IS_INMEMORY(var2->flags))
- M_LLD(REG_ITMP3, REG_SP, var2->vv.regoff * 8);
- else
- M_INTMOVE(var2->vv.regoff, REG_ITMP3);
- /*
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_INTMOVE(s1, REG_ITMP1);
+ s1 = emit_load_s1(jd, iptr, RAX);
s2 = emit_load_s2(jd, iptr, REG_ITMP3);
+ d = codegen_reg_of_dst(jd, iptr, RDX);
+
+ M_INTMOVE(s1, RAX);
M_INTMOVE(s2, REG_ITMP3);
- */
- if (checknull) {
- M_ITEST(REG_ITMP3);
- M_BEQ(0);
- codegen_add_arithmeticexception_ref(cd);
- }
+ emit_arithmetic_check(cd, iptr, REG_ITMP3);
- M_MOV(RDX, REG_ITMP2); /* save %rdx, cause it's an argument register */
+ M_MOV(RDX, REG_ITMP2); /* save RDX (it's an argument register) */
/* check as described in jvm spec */
- disp = dseg_adds8(cd, 0x8000000000000000LL);
+ disp = dseg_add_s8(cd, 0x8000000000000000LL);
M_LCMP_MEMBASE(RIP, -((cd->mcodeptr + 7) - cd->mcodebase) + disp, REG_ITMP1);
M_BNE(3 + 4 + 6);
-
-#if 0
- emit_alul_reg_reg(cd, ALU_XOR, RDX, RDX); /* 2 bytes */
-#endif
M_LXOR(RDX, RDX); /* 3 bytes */
- M_LCMP_IMM(-1, REG_ITMP3); /* 4 bytes */
+ M_LCMP_IMM(-1, REG_ITMP3); /* 4 bytes */
M_BEQ(2 + 3); /* 6 bytes */
- emit_cqto(cd);
- emit_idiv_reg(cd, REG_ITMP3);
-
- if (IS_INMEMORY(dst->flags)) {
- M_LST(RDX, REG_SP, dst->vv.regoff * 8);
- M_MOV(REG_ITMP2, RDX); /* restore %rdx */
-
- } else {
- M_INTMOVE(RDX, dst->vv.regoff);
+ emit_cqto(cd); /* 2 bytes */
+ emit_idiv_reg(cd, REG_ITMP3); /* 3 bytes */
- if (dst->vv.regoff != RDX) {
- M_MOV(REG_ITMP2, RDX); /* restore %rdx */
- }
- }
+ M_INTMOVE(RDX, d);
+ emit_store_dst(jd, iptr, d);
+ dst = VAROP(iptr->dst);
+ if (IS_INMEMORY(dst->flags) || (dst->vv.regoff != RDX))
+ M_MOV(REG_ITMP2, RDX); /* restore RDX */
break;
case ICMD_LDIVPOW2: /* ..., value ==> ..., value >> constant */
s1 = emit_load_s1(jd, iptr, REG_FTMP1);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
- disp = dseg_adds4(cd, 0x80000000);
- M_FLTMOVE(s1, d);
+ disp = dseg_add_s4(cd, 0x80000000);
+ emit_fmove(cd, s1, d);
emit_movss_membase_reg(cd, RIP, -((cd->mcodeptr + 9) - cd->mcodebase) + disp, REG_FTMP2);
emit_xorps_reg_reg(cd, REG_FTMP2, d);
emit_store_dst(jd, iptr, d);
s1 = emit_load_s1(jd, iptr, REG_FTMP1);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
- disp = dseg_adds8(cd, 0x8000000000000000);
- M_FLTMOVE(s1, d);
+ disp = dseg_add_s8(cd, 0x8000000000000000);
+ emit_fmove(cd, s1, d);
emit_movd_membase_reg(cd, RIP, -((cd->mcodeptr + 9) - cd->mcodebase) + disp, REG_FTMP2);
emit_xorpd_reg_reg(cd, REG_FTMP2, d);
emit_store_dst(jd, iptr, d);
if (s2 == d)
M_FADD(s1, d);
else {
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_FADD(s2, d);
}
emit_store_dst(jd, iptr, d);
if (s2 == d)
M_DADD(s1, d);
else {
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_DADD(s2, d);
}
emit_store_dst(jd, iptr, d);
s2 = emit_load_s2(jd, iptr, REG_FTMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
if (s2 == d) {
- M_FLTMOVE(s2, REG_FTMP2);
+ emit_fmove(cd, s2, REG_FTMP2);
s2 = REG_FTMP2;
}
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_FSUB(s2, d);
emit_store_dst(jd, iptr, d);
break;
s2 = emit_load_s2(jd, iptr, REG_FTMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
if (s2 == d) {
- M_FLTMOVE(s2, REG_FTMP2);
+ emit_fmove(cd, s2, REG_FTMP2);
s2 = REG_FTMP2;
}
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_DSUB(s2, d);
emit_store_dst(jd, iptr, d);
break;
if (s2 == d)
M_FMUL(s1, d);
else {
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_FMUL(s2, d);
}
emit_store_dst(jd, iptr, d);
if (s2 == d)
M_DMUL(s1, d);
else {
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_DMUL(s2, d);
}
emit_store_dst(jd, iptr, d);
s2 = emit_load_s2(jd, iptr, REG_FTMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
if (s2 == d) {
- M_FLTMOVE(s2, REG_FTMP2);
+ emit_fmove(cd, s2, REG_FTMP2);
s2 = REG_FTMP2;
}
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_FDIV(s2, d);
emit_store_dst(jd, iptr, d);
break;
s2 = emit_load_s2(jd, iptr, REG_FTMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
if (s2 == d) {
- M_FLTMOVE(s2, REG_FTMP2);
+ emit_fmove(cd, s2, REG_FTMP2);
s2 = REG_FTMP2;
}
- M_FLTMOVE(s1, d);
+ emit_fmove(cd, s1, d);
M_DDIV(s2, d);
emit_store_dst(jd, iptr, d);
break;
disp = ((s1 == REG_FTMP1) ? 0 : 5) + 10 + 3 +
((REG_RESULT == d) ? 0 : 3);
M_BNE(disp);
- M_FLTMOVE(s1, REG_FTMP1);
+ emit_fmove(cd, s1, REG_FTMP1);
M_MOV_IMM(asm_builtin_f2i, REG_ITMP2);
M_CALL(REG_ITMP2);
M_INTMOVE(REG_RESULT, d);
disp = ((s1 == REG_FTMP1) ? 0 : 5) + 10 + 3 +
((REG_RESULT == d) ? 0 : 3);
M_BNE(disp);
- M_FLTMOVE(s1, REG_FTMP1);
+ emit_fmove(cd, s1, REG_FTMP1);
M_MOV_IMM(asm_builtin_d2i, REG_ITMP2);
M_CALL(REG_ITMP2);
M_INTMOVE(REG_RESULT, d);
disp = ((s1 == REG_FTMP1) ? 0 : 5) + 10 + 3 +
((REG_RESULT == d) ? 0 : 3);
M_BNE(disp);
- M_FLTMOVE(s1, REG_FTMP1);
+ emit_fmove(cd, s1, REG_FTMP1);
M_MOV_IMM(asm_builtin_f2l, REG_ITMP2);
M_CALL(REG_ITMP2);
M_INTMOVE(REG_RESULT, d);
disp = ((s1 == REG_FTMP1) ? 0 : 5) + 10 + 3 +
((REG_RESULT == d) ? 0 : 3);
M_BNE(disp);
- M_FLTMOVE(s1, REG_FTMP1);
+ emit_fmove(cd, s1, REG_FTMP1);
M_MOV_IMM(asm_builtin_d2l, REG_ITMP2);
M_CALL(REG_ITMP2);
M_INTMOVE(REG_RESULT, d);
M_MOV_IMM(1, REG_ITMP1);
M_MOV_IMM(-1, REG_ITMP2);
emit_ucomiss_reg_reg(cd, s1, s2);
- M_CMOVB(REG_ITMP1, d);
- M_CMOVA(REG_ITMP2, d);
+ M_CMOVULT(REG_ITMP1, d);
+ M_CMOVUGT(REG_ITMP2, d);
M_CMOVP(REG_ITMP2, d); /* treat unordered as GT */
emit_store_dst(jd, iptr, d);
break;
M_MOV_IMM(1, REG_ITMP1);
M_MOV_IMM(-1, REG_ITMP2);
emit_ucomiss_reg_reg(cd, s1, s2);
- M_CMOVB(REG_ITMP1, d);
- M_CMOVA(REG_ITMP2, d);
+ M_CMOVULT(REG_ITMP1, d);
+ M_CMOVUGT(REG_ITMP2, d);
M_CMOVP(REG_ITMP1, d); /* treat unordered as LT */
emit_store_dst(jd, iptr, d);
break;
M_MOV_IMM(1, REG_ITMP1);
M_MOV_IMM(-1, REG_ITMP2);
emit_ucomisd_reg_reg(cd, s1, s2);
- M_CMOVB(REG_ITMP1, d);
- M_CMOVA(REG_ITMP2, d);
+ M_CMOVULT(REG_ITMP1, d);
+ M_CMOVUGT(REG_ITMP2, d);
M_CMOVP(REG_ITMP2, d); /* treat unordered as GT */
emit_store_dst(jd, iptr, d);
break;
M_MOV_IMM(1, REG_ITMP1);
M_MOV_IMM(-1, REG_ITMP2);
emit_ucomisd_reg_reg(cd, s1, s2);
- M_CMOVB(REG_ITMP1, d);
- M_CMOVA(REG_ITMP2, d);
+ M_CMOVULT(REG_ITMP1, d);
+ M_CMOVUGT(REG_ITMP2, d);
M_CMOVP(REG_ITMP1, d); /* treat unordered as LT */
emit_store_dst(jd, iptr, d);
break;
/* memory operations **************************************************/
- case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., (int) length */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- gen_nullptr_check(s1);
- M_ILD(d, s1, OFFSET(java_arrayheader, size));
- emit_store_dst(jd, iptr, d);
- break;
-
case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movsbq_memindex_reg(cd, OFFSET(java_bytearray, data[0]), s1, s2, 0, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movsbq_memindex_reg(cd, OFFSET(java_bytearray_t, data[0]), s1, s2, 0, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movzwq_memindex_reg(cd, OFFSET(java_chararray, data[0]), s1, s2, 1, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movzwq_memindex_reg(cd, OFFSET(java_chararray_t, data[0]), s1, s2, 1, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movswq_memindex_reg(cd, OFFSET(java_shortarray, data[0]), s1, s2, 1, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movswq_memindex_reg(cd, OFFSET(java_shortarray_t, data[0]), s1, s2, 1, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movl_memindex_reg(cd, OFFSET(java_intarray, data[0]), s1, s2, 2, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movl_memindex_reg(cd, OFFSET(java_intarray_t, data[0]), s1, s2, 2, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_mov_memindex_reg(cd, OFFSET(java_longarray, data[0]), s1, s2, 3, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_mov_memindex_reg(cd, OFFSET(java_longarray_t, data[0]), s1, s2, 3, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movss_memindex_reg(cd, OFFSET(java_floatarray, data[0]), s1, s2, 2, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movss_memindex_reg(cd, OFFSET(java_floatarray_t, data[0]), s1, s2, 2, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movsd_memindex_reg(cd, OFFSET(java_doublearray, data[0]), s1, s2, 3, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movsd_memindex_reg(cd, OFFSET(java_doublearray_t, data[0]), s1, s2, 3, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_mov_memindex_reg(cd, OFFSET(java_objectarray, data[0]), s1, s2, 3, d);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_mov_memindex_reg(cd, OFFSET(java_objectarray_t, data[0]), s1, s2, 3, d);
emit_store_dst(jd, iptr, d);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_movb_reg_memindex(cd, s3, OFFSET(java_bytearray, data[0]), s1, s2, 0);
+ emit_movb_reg_memindex(cd, s3, OFFSET(java_bytearray_t, data[0]), s1, s2, 0);
break;
case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_movw_reg_memindex(cd, s3, OFFSET(java_chararray, data[0]), s1, s2, 1);
+ emit_movw_reg_memindex(cd, s3, OFFSET(java_chararray_t, data[0]), s1, s2, 1);
break;
case ICMD_SASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_movw_reg_memindex(cd, s3, OFFSET(java_shortarray, data[0]), s1, s2, 1);
+ emit_movw_reg_memindex(cd, s3, OFFSET(java_shortarray_t, data[0]), s1, s2, 1);
break;
case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_movl_reg_memindex(cd, s3, OFFSET(java_intarray, data[0]), s1, s2, 2);
+ emit_movl_reg_memindex(cd, s3, OFFSET(java_intarray_t, data[0]), s1, s2, 2);
break;
case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_mov_reg_memindex(cd, s3, OFFSET(java_longarray, data[0]), s1, s2, 3);
+ emit_mov_reg_memindex(cd, s3, OFFSET(java_longarray_t, data[0]), s1, s2, 3);
break;
case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_FTMP3);
- emit_movss_reg_memindex(cd, s3, OFFSET(java_floatarray, data[0]), s1, s2, 2);
+ emit_movss_reg_memindex(cd, s3, OFFSET(java_floatarray_t, data[0]), s1, s2, 2);
break;
case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_FTMP3);
- emit_movsd_reg_memindex(cd, s3, OFFSET(java_doublearray, data[0]), s1, s2, 3);
+ emit_movsd_reg_memindex(cd, s3, OFFSET(java_doublearray_t, data[0]), s1, s2, 3);
break;
case ICMD_AASTORE: /* ..., arrayref, index, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
M_MOV(s1, REG_A0);
M_MOV(s3, REG_A1);
- M_MOV_IMM(BUILTIN_canstore, REG_ITMP1);
+ M_MOV_IMM(BUILTIN_FAST_canstore, REG_ITMP1);
M_CALL(REG_ITMP1);
- M_TEST(REG_RESULT);
- M_BEQ(0);
- codegen_add_arraystoreexception_ref(cd);
+ emit_arraystore_check(cd, iptr);
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- emit_mov_reg_memindex(cd, s3, OFFSET(java_objectarray, data[0]), s1, s2, 3);
+ emit_mov_reg_memindex(cd, s3, OFFSET(java_objectarray_t, data[0]), s1, s2, 3);
break;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movb_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_bytearray, data[0]), s1, s2, 0);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movb_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_bytearray_t, data[0]), s1, s2, 0);
break;
case ICMD_CASTORECONST: /* ..., arrayref, index ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movw_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_chararray, data[0]), s1, s2, 1);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movw_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_chararray_t, data[0]), s1, s2, 1);
break;
case ICMD_SASTORECONST: /* ..., arrayref, index ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movw_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_shortarray, data[0]), s1, s2, 1);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movw_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_shortarray_t, data[0]), s1, s2, 1);
break;
case ICMD_IASTORECONST: /* ..., arrayref, index ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_movl_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_intarray, data[0]), s1, s2, 2);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_movl_imm_memindex(cd, iptr->sx.s23.s3.constval, OFFSET(java_intarray_t, data[0]), s1, s2, 2);
break;
case ICMD_LASTORECONST: /* ..., arrayref, index ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
if (IS_IMM32(iptr->sx.s23.s3.constval)) {
- emit_mov_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval & 0x00000000ffffffff), OFFSET(java_longarray, data[0]), s1, s2, 3);
- } else {
- emit_movl_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval & 0x00000000ffffffff), OFFSET(java_longarray, data[0]), s1, s2, 3);
- emit_movl_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval >> 32), OFFSET(java_longarray, data[0]) + 4, s1, s2, 3);
- }
- break;
-
- case ICMD_AASTORECONST: /* ..., arrayref, index ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- gen_nullptr_check(s1);
- gen_bound_check;
- }
- emit_mov_imm_memindex(cd, 0, OFFSET(java_objectarray, data[0]), s1, s2, 3);
- break;
-
-
- case ICMD_GETSTATIC: /* ... ==> ..., value */
-
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- uf = iptr->sx.s23.s3.uf;
- fieldtype = uf->fieldref->parseddesc.fd->type;
- disp = dseg_addaddress(cd, NULL);
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- /* must be calculated before codegen_addpatchref */
-
- if (opt_showdisassemble)
- disp -= PATCHER_CALL_SIZE;
-
-/* PROFILE_CYCLE_STOP; */
-
- codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
-/* PROFILE_CYCLE_START; */
+ emit_mov_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval & 0x00000000ffffffff), OFFSET(java_longarray_t, data[0]), s1, s2, 3);
}
else {
- fi = iptr->sx.s23.s3.fmiref->p.field;
- fieldtype = fi->type;
- disp = dseg_addaddress(cd, &(fi->value));
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
- PROFILE_CYCLE_STOP;
-
- codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
- PROFILE_CYCLE_START;
- }
- }
-
- /* This approach is much faster than moving the field
- address inline into a register. */
-
- M_ALD(REG_ITMP1, RIP, disp);
-
- switch (fieldtype) {
- case TYPE_INT:
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
- M_ILD(d, REG_ITMP1, 0);
- break;
- case TYPE_LNG:
- case TYPE_ADR:
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
- M_LLD(d, REG_ITMP1, 0);
- break;
- case TYPE_FLT:
- d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
- M_FLD(d, REG_ITMP1, 0);
- break;
- case TYPE_DBL:
- d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
- M_DLD(d, REG_ITMP1, 0);
- break;
+ emit_movl_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval & 0x00000000ffffffff), OFFSET(java_longarray_t, data[0]), s1, s2, 3);
+ emit_movl_imm_memindex(cd, (u4) (iptr->sx.s23.s3.constval >> 32), OFFSET(java_longarray_t, data[0]) + 4, s1, s2, 3);
}
- emit_store_dst(jd, iptr, d);
break;
- case ICMD_PUTSTATIC: /* ..., value ==> ... */
-
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- uf = iptr->sx.s23.s3.uf;
- fieldtype = uf->fieldref->parseddesc.fd->type;
- disp = dseg_addaddress(cd, NULL);
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- /* must be calculated before codegen_addpatchref */
-
- if (opt_showdisassemble)
- disp -= PATCHER_CALL_SIZE;
-
-/* PROFILE_CYCLE_STOP; */
-
- codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
-/* PROFILE_CYCLE_START; */
- }
- else {
- fi = iptr->sx.s23.s3.fmiref->p.field;
- fieldtype = fi->type;
- disp = dseg_addaddress(cd, &(fi->value));
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
- PROFILE_CYCLE_STOP;
-
- codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- disp -= PATCHER_CALL_SIZE;
- }
-
- PROFILE_CYCLE_START;
- }
- }
-
- /* This approach is much faster than moving the field
- address inline into a register. */
-
- M_ALD(REG_ITMP1, RIP, disp);
+ case ICMD_AASTORECONST: /* ..., arrayref, index ==> ... */
- switch (fieldtype) {
- case TYPE_INT:
- s1 = emit_load_s1(jd, iptr, REG_ITMP2);
- M_IST(s1, REG_ITMP1, 0);
- break;
- case TYPE_LNG:
- case TYPE_ADR:
- s1 = emit_load_s1(jd, iptr, REG_ITMP2);
- M_LST(s1, REG_ITMP1, 0);
- break;
- case TYPE_FLT:
- s1 = emit_load_s1(jd, iptr, REG_FTMP1);
- M_FST(s1, REG_ITMP1, 0);
- break;
- case TYPE_DBL:
- s1 = emit_load_s1(jd, iptr, REG_FTMP1);
- M_DST(s1, REG_ITMP1, 0);
- break;
- }
+ s1 = emit_load_s1(jd, iptr, REG_ITMP1);
+ s2 = emit_load_s2(jd, iptr, REG_ITMP2);
+ /* implicit null-pointer check */
+ emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
+ emit_mov_imm_memindex(cd, 0, OFFSET(java_objectarray_t, data[0]), s1, s2, 3);
break;
case ICMD_PUTSTATICCONST: /* ... ==> ... */
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
uf = iptr->sx.s23.s3.uf;
fieldtype = uf->fieldref->parseddesc.fd->type;
- disp = dseg_addaddress(cd, NULL);
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- /* must be calculated before codegen_addpatchref */
-
- if (opt_showdisassemble)
- disp -= PATCHER_CALL_SIZE;
-
+ disp = dseg_add_unique_address(cd, uf);
/* PROFILE_CYCLE_STOP; */
- codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ pr = patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
/* PROFILE_CYCLE_START; */
+
+ fi = NULL; /* Silence compiler warning */
}
else {
fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
- disp = dseg_addaddress(cd, &(fi->value));
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
+ disp = dseg_add_address(cd, fi->value);
- if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
- PROFILE_CYCLE_STOP;
+ if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
+ //PROFILE_CYCLE_STOP;
- codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
+ patcher_add_patch_ref(jd, PATCHER_initialize_class,
+ fi->clazz, 0);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
- PROFILE_CYCLE_START;
+ //PROFILE_CYCLE_START;
}
+
+ pr = NULL; /* Silence compiler warning */
}
/* This approach is much faster than moving the field
if (IS_IMM32(iptr->sx.s23.s2.constval))
M_LST_IMM32(iptr->sx.s23.s2.constval, REG_ITMP1, 0);
else {
- M_IST_IMM(iptr->sx.s23.s2.constval, REG_ITMP1, 0);
- M_IST_IMM(iptr->sx.s23.s2.constval >> 32, REG_ITMP1, 4);
+ M_MOV_IMM(iptr->sx.s23.s2.constval, REG_ITMP2);
+ M_LST(REG_ITMP2, REG_ITMP1, 0);
}
break;
}
+ codegen_emit_patchable_barrier(iptr, cd, pr, fi);
break;
case ICMD_GETFIELD: /* ... ==> ..., value */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- gen_nullptr_check(s1);
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
uf = iptr->sx.s23.s3.uf;
/* PROFILE_CYCLE_STOP; */
- codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
/* PROFILE_CYCLE_START; */
+
+ fi = NULL; /* Silence compiler warning */
}
else {
fi = iptr->sx.s23.s3.fmiref->p.field;
disp = fi->offset;
}
+ /* implicit null-pointer check */
switch (fieldtype) {
case TYPE_INT:
d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
M_DLD32(d, s1, disp);
break;
+ default:
+ // Silence compiler warning.
+ d = 0;
}
emit_store_dst(jd, iptr, d);
break;
case ICMD_PUTFIELD: /* ..., objectref, value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- gen_nullptr_check(s1);
-
- s2 = emit_load_s2(jd, iptr, REG_IFTMP);
+ s2 = emit_load_s2(jd, iptr, REG_IFTMP); /* REG_IFTMP == REG_ITMP2 */
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
uf = iptr->sx.s23.s3.uf;
/* PROFILE_CYCLE_STOP; */
- codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ pr = patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
/* PROFILE_CYCLE_START; */
+
+ fi = NULL; /* Silence compiler warning */
}
else {
fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
disp = fi->offset;
+
+ pr = NULL; /* Silence compiler warning */
}
+ /* implicit null-pointer check */
switch (fieldtype) {
case TYPE_INT:
M_IST32(s2, s1, disp);
M_DST32(s2, s1, disp);
break;
}
+ codegen_emit_patchable_barrier(iptr, cd, pr, fi);
break;
case ICMD_PUTFIELDCONST: /* ..., objectref, value ==> ... */
/* following NOP) */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- gen_nullptr_check(s1);
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
uf = iptr->sx.s23.s3.uf;
/* PROFILE_CYCLE_STOP; */
- codegen_addpatchref(cd, PATCHER_putfieldconst, uf, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ pr = patcher_add_patch_ref(jd, PATCHER_putfieldconst, uf, 0);
/* PROFILE_CYCLE_START; */
+
+ fi = NULL; /* Silence compiler warning */
}
else {
fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
disp = fi->offset;
+
+ pr = NULL; /* Silence compiler warning */
}
+ /* implicit null-pointer check */
switch (fieldtype) {
case TYPE_INT:
case TYPE_FLT:
case TYPE_LNG:
case TYPE_ADR:
case TYPE_DBL:
- /* XXX why no check for IS_IMM32? */
- M_IST32_IMM(iptr->sx.s23.s2.constval, s1, disp);
- M_IST32_IMM(iptr->sx.s23.s2.constval >> 32, s1, disp + 4);
+ /* XXX why no check for IS_IMM32? -- probably because of the patcher */
+ M_MOV_IMM(iptr->sx.s23.s2.constval, REG_ITMP2);
+ if (disp) /* resolved, disp can never be 0 */
+ M_LST(REG_ITMP2, s1, disp);
+ else /* unresolved */
+ M_LST32(REG_ITMP2, s1, disp);
break;
}
+ codegen_emit_patchable_barrier(iptr, cd, pr, fi);
break;
case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_INTMOVE(s1, REG_ITMP1_XPTR);
-
- PROFILE_CYCLE_STOP;
-
-#ifdef ENABLE_VERIFIER
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- codegen_addpatchref(cd, PATCHER_athrow_areturn,
- iptr->sx.s23.s2.uc, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
- }
-#endif /* ENABLE_VERIFIER */
-
M_CALL_IMM(0); /* passing exception pc */
M_POP(REG_ITMP2_XPC);
M_JMP(REG_ITMP3);
break;
- case ICMD_GOTO: /* ... ==> ... */
- case ICMD_RET: /* ... ==> ... */
-
- M_JMP_IMM(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_JSR: /* ... ==> ... */
-
- M_JMP_IMM(0);
- codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
- break;
-
- case ICMD_IFNULL: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_TEST(s1);
- M_BEQ(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFNONNULL: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_TEST(s1);
- M_BNE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFEQ: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BEQ(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFLT: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BLT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFLE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BLE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFNE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BNE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFGT: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BGT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IFGE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_ICMP_IMM(iptr->sx.val.i, s1);
- M_BGE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
case ICMD_IF_LEQ: /* ..., value ==> ... */
+ case ICMD_IF_LNE:
+ case ICMD_IF_LLT:
+ case ICMD_IF_LGE:
+ case ICMD_IF_LGT:
+ case ICMD_IF_LLE:
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
if (IS_IMM32(iptr->sx.val.l))
M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
M_LCMP(REG_ITMP2, s1);
}
- M_BEQ(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LLT: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- if (IS_IMM32(iptr->sx.val.l))
- M_LCMP_IMM(iptr->sx.val.l, s1);
- else {
- M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
- M_LCMP(REG_ITMP2, s1);
- }
- M_BLT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LLE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- if (IS_IMM32(iptr->sx.val.l))
- M_LCMP_IMM(iptr->sx.val.l, s1);
- else {
- M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
- M_LCMP(REG_ITMP2, s1);
- }
- M_BLE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LNE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- if (IS_IMM32(iptr->sx.val.l))
- M_LCMP_IMM(iptr->sx.val.l, s1);
- else {
- M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
- M_LCMP(REG_ITMP2, s1);
- }
- M_BNE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LGT: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- if (IS_IMM32(iptr->sx.val.l))
- M_LCMP_IMM(iptr->sx.val.l, s1);
- else {
- M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
- M_LCMP(REG_ITMP2, s1);
- }
- M_BGT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LGE: /* ..., value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- if (IS_IMM32(iptr->sx.val.l))
- M_LCMP_IMM(iptr->sx.val.l, s1);
- else {
- M_MOV_IMM(iptr->sx.val.l, REG_ITMP2);
- M_LCMP(REG_ITMP2, s1);
- }
- M_BGE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BEQ(0);
- codegen_addreference(cd, iptr->dst.block);
+ emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_LEQ, BRANCH_OPT_NONE);
break;
case ICMD_IF_LCMPEQ: /* ..., value, value ==> ... */
- case ICMD_IF_ACMPEQ: /* op1 = target JavaVM pc */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_LCMP(s2, s1);
- M_BEQ(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPNE: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BNE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LCMPNE: /* ..., value, value ==> ... */
- case ICMD_IF_ACMPNE: /* op1 = target JavaVM pc */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_LCMP(s2, s1);
- M_BNE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPLT: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BLT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LCMPLT: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_LCMP(s2, s1);
- M_BLT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPGT: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BGT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LCMPGT: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_LCMP(s2, s1);
- M_BGT(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPLE: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BLE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LCMPLE: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_LCMP(s2, s1);
- M_BLE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_ICMPGE: /* ..., value, value ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_ICMP(s2, s1);
- M_BGE(0);
- codegen_addreference(cd, iptr->dst.block);
- break;
-
- case ICMD_IF_LCMPGE: /* ..., value, value ==> ... */
+ case ICMD_IF_LCMPNE:
+ case ICMD_IF_LCMPLT:
+ case ICMD_IF_LCMPGE:
+ case ICMD_IF_LCMPGT:
+ case ICMD_IF_LCMPLE:
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
s2 = emit_load_s2(jd, iptr, REG_ITMP2);
M_LCMP(s2, s1);
- M_BGE(0);
- codegen_addreference(cd, iptr->dst.block);
+ emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_LCMPEQ, BRANCH_OPT_NONE);
break;
- case ICMD_IRETURN: /* ..., retvalue ==> ... */
- case ICMD_LRETURN:
-
- s1 = emit_load_s1(jd, iptr, REG_RESULT);
- M_INTMOVE(s1, REG_RESULT);
- goto nowperformreturn;
-
- case ICMD_ARETURN: /* ..., retvalue ==> ... */
-
- s1 = emit_load_s1(jd, iptr, REG_RESULT);
- M_INTMOVE(s1, REG_RESULT);
-
-#ifdef ENABLE_VERIFIER
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- PROFILE_CYCLE_STOP;
-
- codegen_addpatchref(cd, PATCHER_athrow_areturn,
- iptr->sx.s23.s2.uc, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
- PROFILE_CYCLE_START;
- }
-#endif /* ENABLE_VERIFIER */
- goto nowperformreturn;
-
- case ICMD_FRETURN: /* ..., retvalue ==> ... */
- case ICMD_DRETURN:
-
- s1 = emit_load_s1(jd, iptr, REG_FRESULT);
- M_FLTMOVE(s1, REG_FRESULT);
- goto nowperformreturn;
-
- case ICMD_RETURN: /* ... ==> ... */
-
-nowperformreturn:
- {
- s4 i, p;
-
- p = cd->stackframesize;
-
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_exit(jd);
-#endif /* !defined(NDEBUG) */
-
-#if defined(ENABLE_THREADS)
- if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
- M_ALD(REG_A0, REG_SP, rd->memuse * 8);
-
- /* we need to save the proper return value */
- switch (iptr->opc) {
- case ICMD_IRETURN:
- case ICMD_ARETURN:
- case ICMD_LRETURN:
- M_LST(REG_RESULT, REG_SP, rd->memuse * 8);
- break;
- case ICMD_FRETURN:
- case ICMD_DRETURN:
- M_DST(REG_FRESULT, REG_SP, rd->memuse * 8);
- break;
- }
-
- M_MOV_IMM(LOCK_monitor_exit, REG_ITMP1);
- M_CALL(REG_ITMP1);
-
- /* and now restore the proper return value */
- switch (iptr->opc) {
- case ICMD_IRETURN:
- case ICMD_ARETURN:
- case ICMD_LRETURN:
- M_LLD(REG_RESULT, REG_SP, rd->memuse * 8);
- break;
- case ICMD_FRETURN:
- case ICMD_DRETURN:
- M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8);
- break;
- }
- }
-#endif
-
- /* restore saved registers */
-
- for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
- p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
- }
- for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
- p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
- }
-
- /* deallocate stack */
-
- if (cd->stackframesize)
- M_AADD_IMM(cd->stackframesize * 8, REG_SP);
-
- /* generate method profiling code */
-
- PROFILE_CYCLE_STOP;
-
- M_RET;
- }
- break;
-
-
case ICMD_TABLESWITCH: /* ..., index ==> ... */
{
s4 i, l;
M_ISUB_IMM(l, REG_ITMP1);
/* number of targets */
- i = i - l + 1;
-
- /* range check */
- M_ICMP_IMM(i - 1, REG_ITMP1);
- M_BA(0);
-
- codegen_addreference(cd, table[0].block); /* default target */
-
- /* build jump table top down and use address of lowest entry */
-
- table += i;
-
- while (--i >= 0) {
- dseg_addtarget(cd, table->block);
- --table;
- }
-
- /* length of dataseg after last dseg_addtarget is used
- by load */
-
- M_MOV_IMM(0, REG_ITMP2);
- dseg_adddata(cd);
- emit_mov_memindex_reg(cd, -(cd->dseglen), REG_ITMP2, REG_ITMP1, 3, REG_ITMP1);
- M_JMP(REG_ITMP1);
- }
- break;
-
-
- case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
- {
- s4 i;
- lookup_target_t *lookup;
-
- lookup = iptr->dst.lookup;
-
- i = iptr->sx.s23.s2.lookupcount;
-
- MCODECHECK(8 + ((7 + 6) * i) + 5);
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
-
- while (--i >= 0) {
- M_ICMP_IMM(lookup->value, s1);
- M_BEQ(0);
- codegen_addreference(cd, lookup->target.block);
- lookup++;
- }
-
- M_JMP_IMM(0);
-
- codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
- }
- break;
-
-
- case ICMD_BUILTIN: /* ..., [arg1, [arg2 ...]] ==> ... */
-
- bte = iptr->sx.s23.s3.bte;
- md = bte->md;
- goto gen_method;
-
- case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
-
- case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
- case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
- case ICMD_INVOKEINTERFACE:
-
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- lm = NULL;
- um = iptr->sx.s23.s3.um;
- md = um->methodref->parseddesc.md;
- }
- else {
- lm = iptr->sx.s23.s3.fmiref->p.method;
- um = NULL;
- md = lm->parseddesc;
- }
-
-gen_method:
- s3 = md->paramcount;
-
- MCODECHECK((20 * s3) + 128);
-
- /* copy arguments to registers or stack location */
-
- for (s3 = s3 - 1; s3 >= 0; s3--) {
- var = VAR(iptr->sx.s23.s2.args[s3]);
-
- /* Already Preallocated (ARGVAR) ? */
- if (var->flags & PREALLOC)
- continue;
-
- if (IS_INT_LNG_TYPE(var->type)) {
- if (!md->params[s3].inmemory) {
- s1 = rd->argintregs[md->params[s3].regoff];
- d = emit_load(jd, iptr, var, s1);
- M_INTMOVE(d, s1);
- }
- else {
- d = emit_load(jd, iptr, var, REG_ITMP1);
- M_LST(d, REG_SP, md->params[s3].regoff * 8);
- }
- }
- else {
- if (!md->params[s3].inmemory) {
- s1 = rd->argfltregs[md->params[s3].regoff];
- d = emit_load(jd, iptr, var, s1);
- M_FLTMOVE(d, s1);
- }
- else {
- d = emit_load(jd, iptr, var, REG_FTMP1);
-
- if (IS_2_WORD_TYPE(var->type))
- M_DST(d, REG_SP, md->params[s3].regoff * 8);
- else
- M_FST(d, REG_SP, md->params[s3].regoff * 8);
- }
- }
- }
-
- /* generate method profiling code */
-
- PROFILE_CYCLE_STOP;
-
- switch (iptr->opc) {
- case ICMD_BUILTIN:
- M_MOV_IMM(bte->fp, REG_ITMP1);
- M_CALL(REG_ITMP1);
-
- if (INSTRUCTION_MUST_CHECK(iptr)) {
- M_TEST(REG_RESULT);
- M_BEQ(0);
- codegen_add_fillinstacktrace_ref(cd);
- }
- break;
-
- case ICMD_INVOKESPECIAL:
- M_TEST(REG_A0);
- M_BEQ(0);
- codegen_add_nullpointerexception_ref(cd);
-
- /* fall through */
-
- case ICMD_INVOKESTATIC:
- if (lm == NULL) {
- disp = dseg_addaddress(cd, NULL);
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
- /* must be calculated before codegen_addpatchref */
-
- if (opt_showdisassemble)
- disp -= PATCHER_CALL_SIZE;
-
- codegen_addpatchref(cd, PATCHER_invokestatic_special,
- um, disp);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
-
-/* a = 0; */
- }
- else {
- disp = dseg_addaddress(cd, lm->stubroutine);
- disp = -((cd->mcodeptr + 7) - cd->mcodebase) + disp;
-
-/* a = (ptrint) lm->stubroutine; */
- }
+ i = i - l + 1;
-/* M_MOV_IMM(a, REG_ITMP2); */
- M_ALD(REG_ITMP2, RIP, disp);
- M_CALL(REG_ITMP2);
- break;
+ /* range check */
- case ICMD_INVOKEVIRTUAL:
- gen_nullptr_check(REG_A0);
+ M_ICMP_IMM(i - 1, REG_ITMP1);
+ emit_bugt(cd, table[0].block);
- if (lm == NULL) {
- codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
+ /* build jump table top down and use address of lowest entry */
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ table += i;
- s1 = 0;
+ while (--i >= 0) {
+ dseg_add_target(cd, table->block);
+ --table;
}
- else
- s1 = OFFSET(vftbl_t, table[0]) +
- sizeof(methodptr) * lm->vftblindex;
-
- M_ALD(REG_METHODPTR, REG_A0,
- OFFSET(java_objectheader, vftbl));
- M_ALD32(REG_ITMP3, REG_METHODPTR, s1);
- M_CALL(REG_ITMP3);
- break;
- case ICMD_INVOKEINTERFACE:
- gen_nullptr_check(REG_A0);
+ /* length of dataseg after last dseg_add_target is used
+ by load */
- if (lm == NULL) {
- codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
+ M_MOV_IMM(0, REG_ITMP2);
+ dseg_adddata(cd);
+ emit_mov_memindex_reg(cd, -(cd->dseglen), REG_ITMP2, REG_ITMP1, 3, REG_ITMP1);
+ M_JMP(REG_ITMP1);
+ }
+ break;
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ case ICMD_BUILTIN:
+ bte = iptr->sx.s23.s3.bte;
+ if (bte->stub == NULL) {
+ M_MOV_IMM(bte->fp, REG_ITMP1);
+ }
+ else {
+ M_MOV_IMM(bte->stub, REG_ITMP1);
+ }
+ M_CALL(REG_ITMP1);
+ break;
- s1 = 0;
- s2 = 0;
- }
- else {
- s1 = OFFSET(vftbl_t, interfacetable[0]) -
- sizeof(methodptr) * lm->class->index;
+ case ICMD_INVOKESPECIAL:
+ emit_nullpointer_check(cd, iptr, REG_A0);
+ /* fall through */
- s2 = sizeof(methodptr) * (lm - lm->class->methods);
- }
+ case ICMD_INVOKESTATIC:
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
+ disp = dseg_add_unique_address(cd, um);
- M_ALD(REG_METHODPTR, REG_A0,
- OFFSET(java_objectheader, vftbl));
- M_ALD32(REG_METHODPTR, REG_METHODPTR, s1);
- M_ALD32(REG_ITMP3, REG_METHODPTR, s2);
- M_CALL(REG_ITMP3);
- break;
+ patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
+ um, disp);
+ }
+ else {
+ lm = iptr->sx.s23.s3.fmiref->p.method;
+ disp = dseg_add_functionptr(cd, lm->stubroutine);
}
- /* generate method profiling code */
+ M_ALD(REG_ITMP2, RIP, disp);
+ M_CALL(REG_ITMP2);
+ break;
- PROFILE_CYCLE_START;
+ case ICMD_INVOKEVIRTUAL:
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
+ patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
- /* store return value */
+ s1 = 0;
+ }
+ else {
+ lm = iptr->sx.s23.s3.fmiref->p.method;
+ s1 = OFFSET(vftbl_t, table[0]) +
+ sizeof(methodptr) * lm->vftblindex;
+ }
- d = md->returntype.type;
+ /* implicit null-pointer check */
+ M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
+ M_ALD32(REG_ITMP3, REG_METHODPTR, s1);
+ M_CALL(REG_ITMP3);
+ break;
- if (d != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(d)) {
- s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
- M_INTMOVE(REG_RESULT, s1);
- }
- else {
- s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
- M_FLTMOVE(REG_FRESULT, s1);
- }
- emit_store_dst(jd, iptr, s1);
+ case ICMD_INVOKEINTERFACE:
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
+ patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
+
+ s1 = 0;
+ s2 = 0;
+ }
+ else {
+ lm = iptr->sx.s23.s3.fmiref->p.method;
+ s1 = OFFSET(vftbl_t, interfacetable[0]) -
+ sizeof(methodptr) * lm->clazz->index;
+
+ s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
}
- break;
+ /* implicit null-pointer check */
+ M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
+ M_ALD32(REG_METHODPTR, REG_METHODPTR, s1);
+ M_ALD32(REG_ITMP3, REG_METHODPTR, s2);
+ M_CALL(REG_ITMP3);
+ break;
case ICMD_CHECKCAST: /* ..., objectref ==> ..., objectref */
- /* val.a: (classinfo *) superclass */
-
- /* superclass is an interface:
- *
- * OK if ((sub == NULL) ||
- * (sub->vftbl->interfacetablelength > super->index) &&
- * (sub->vftbl->interfacetable[-super->index] != NULL));
- *
- * superclass is a class:
- *
- * OK if ((sub == NULL) || (0
- * <= (sub->vftbl->baseval - super->vftbl->baseval) <=
- * super->vftbl->diffval));
- */
-
if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
/* object type cast-check */
classinfo *super;
- vftbl_t *supervftbl;
s4 superindex;
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- super = NULL;
+ super = NULL;
superindex = 0;
- supervftbl = NULL;
}
else {
- super = iptr->sx.s23.s3.c.cls;
+ super = iptr->sx.s23.s3.c.cls;
superindex = super->index;
- supervftbl = super->vftbl;
}
-#if defined(ENABLE_THREADS)
- codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- /* calculate interface checkcast code size */
-
- s2 = 3; /* mov_membase_reg */
- CALCOFFSETBYTES(s2, s1, OFFSET(java_objectheader, vftbl));
-
- s2 += 3 + 4 /* movl_membase32_reg */ + 3 + 4 /* sub imm32 */ +
- 3 /* test */ + 6 /* jcc */ + 3 + 4 /* mov_membase32_reg */ +
- 3 /* test */ + 6 /* jcc */;
-
- if (super == NULL)
- s2 += (opt_showdisassemble ? 5 : 0);
-
- /* calculate class checkcast code size */
-
- s3 = 3; /* mov_membase_reg */
- CALCOFFSETBYTES(s3, s1, OFFSET(java_objectheader, vftbl));
- s3 += 10 /* mov_imm_reg */ + 3 + 4 /* movl_membase32_reg */;
-
-#if 0
- if (s1 != REG_ITMP1) {
- a += 3; /* movl_membase_reg - only if REG_ITMP3 == R11 */
- CALCOFFSETBYTES(a, REG_ITMP3, OFFSET(vftbl_t, baseval));
- a += 3; /* movl_membase_reg - only if REG_ITMP3 == R11 */
- CALCOFFSETBYTES(a, REG_ITMP3, OFFSET(vftbl_t, diffval));
- a += 3; /* sub */
-
- } else
-#endif
- {
- s3 += 3 + 4 /* movl_membase32_reg */ + 3 /* sub */ +
- 10 /* mov_imm_reg */ + 3 /* movl_membase_reg */;
- CALCOFFSETBYTES(s3, REG_ITMP3, OFFSET(vftbl_t, diffval));
- }
-
- s3 += 3 /* cmp */ + 6 /* jcc */;
-
- if (super == NULL)
- s3 += (opt_showdisassemble ? 5 : 0);
-
/* if class is not resolved, check which code to call */
if (super == NULL) {
M_TEST(s1);
- M_BEQ(6 + (opt_showdisassemble ? 5 : 0) + 7 + 6 + s2 + 5 + s3);
+ emit_label_beq(cd, BRANCH_LABEL_1);
- codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
- iptr->sx.s23.s3.c.ref, 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
+ iptr->sx.s23.s3.c.ref, 0);
M_IMOV_IMM(0, REG_ITMP2); /* super->flags */
M_IAND_IMM(ACC_INTERFACE, REG_ITMP2);
- M_BEQ(s2 + 5);
+ emit_label_beq(cd, BRANCH_LABEL_2);
}
/* interface checkcast code */
if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
if (super != NULL) {
M_TEST(s1);
- M_BEQ(s2);
+ emit_label_beq(cd, BRANCH_LABEL_3);
}
- M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
if (super == NULL) {
- codegen_addpatchref(cd,
- PATCHER_checkcast_instanceof_interface,
- iptr->sx.s23.s3.c.ref,
- 0);
-
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_checkcast_interface,
+ iptr->sx.s23.s3.c.ref,
+ 0);
}
- emit_movl_membase32_reg(cd, REG_ITMP2,
- OFFSET(vftbl_t, interfacetablelength),
- REG_ITMP3);
- /* XXX TWISTI: should this be int arithmetic? */
- M_LSUB_IMM32(superindex, REG_ITMP3);
- M_TEST(REG_ITMP3);
- M_BLE(0);
- codegen_add_classcastexception_ref(cd, s1);
- emit_mov_membase32_reg(cd, REG_ITMP2,
- OFFSET(vftbl_t, interfacetable[0]) -
- superindex * sizeof(methodptr*),
- REG_ITMP3);
+ M_ILD32(REG_ITMP3,
+ REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
+ M_ICMP_IMM32(superindex, REG_ITMP3);
+ emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
+
+ M_ALD32(REG_ITMP3, REG_ITMP2,
+ OFFSET(vftbl_t, interfacetable[0]) -
+ superindex * sizeof(methodptr*));
M_TEST(REG_ITMP3);
- M_BEQ(0);
- codegen_add_classcastexception_ref(cd, s1);
+ emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
if (super == NULL)
- M_JMP_IMM(s3);
+ emit_label_br(cd, BRANCH_LABEL_4);
+ else
+ emit_label(cd, BRANCH_LABEL_3);
}
/* class checkcast code */
if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
- if (super != NULL) {
+ if (super == NULL) {
+ emit_label(cd, BRANCH_LABEL_2);
+
+ constant_classref *cr = iptr->sx.s23.s3.c.ref;
+ disp = dseg_add_unique_address(cd, cr);
+
+ patcher_add_patch_ref(jd,
+ PATCHER_resolve_classref_to_vftbl,
+ cr, disp);
+ }
+ else {
M_TEST(s1);
- M_BEQ(s3);
+ emit_label_beq(cd, BRANCH_LABEL_5);
+
+ disp = dseg_add_address(cd, super->vftbl);
}
- M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
+ M_ALD(REG_ITMP3, RIP, disp);
- if (super == NULL) {
- codegen_addpatchref(cd, PATCHER_checkcast_class,
- iptr->sx.s23.s3.c.ref,
- 0);
+ if (super == NULL || super->vftbl->subtype_depth >= DISPLAY_SIZE) {
+ M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
+ M_LCMP_MEMINDEX(REG_ITMP2, 0, REG_ITMP1, 0, REG_ITMP3);
+ emit_label_beq(cd, BRANCH_LABEL_6); /* good */
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
+ if (super == NULL) {
+ M_LCMP_IMM(OFFSET(vftbl_t, subtype_display[DISPLAY_SIZE]), REG_ITMP1);
+ emit_label_bne(cd, BRANCH_LABEL_10); /* throw */
}
+
+ M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_depth));
+ M_ICMP_MEMBASE(REG_ITMP2, OFFSET(vftbl_t, subtype_depth), REG_ITMP1);
+ emit_label_bgt(cd, BRANCH_LABEL_9); /* throw */
+
+ M_ALD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, subtype_overflow));
+ M_LCMP_MEMINDEX(REG_ITMP2, -8*DISPLAY_SIZE, REG_ITMP1, 3, REG_ITMP3);
+ emit_label_beq(cd, BRANCH_LABEL_7); /* good */
+
+ emit_label(cd, BRANCH_LABEL_9);
+ if (super == NULL)
+ emit_label(cd, BRANCH_LABEL_10);
+
+ /* reload s1, might have been destroyed */
+ emit_load_s1(jd, iptr, REG_ITMP1);
+ M_ALD_MEM(s1, TRAP_ClassCastException);
+
+ emit_label(cd, BRANCH_LABEL_7);
+ emit_label(cd, BRANCH_LABEL_6);
+ /* reload s1, might have been destroyed */
+ emit_load_s1(jd, iptr, REG_ITMP1);
+ }
+ else {
+ M_LCMP_MEMBASE(REG_ITMP2, super->vftbl->subtype_offset, REG_ITMP3);
+ emit_classcast_check(cd, iptr, BRANCH_NE, REG_ITMP3, s1);
}
- M_MOV_IMM(supervftbl, REG_ITMP3);
-#if defined(ENABLE_THREADS)
- codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
- emit_movl_membase32_reg(cd, REG_ITMP2,
- OFFSET(vftbl_t, baseval),
- REG_ITMP2);
- /* if (s1 != REG_ITMP1) { */
- /* emit_movl_membase_reg(cd, REG_ITMP3, */
- /* OFFSET(vftbl_t, baseval), */
- /* REG_ITMP1); */
- /* emit_movl_membase_reg(cd, REG_ITMP3, */
- /* OFFSET(vftbl_t, diffval), */
- /* REG_ITMP3); */
- /* #if defined(ENABLE_THREADS) */
- /* codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase); */
- /* #endif */
- /* emit_alu_reg_reg(cd, ALU_SUB, REG_ITMP1, REG_ITMP2); */
-
- /* } else { */
- emit_movl_membase32_reg(cd, REG_ITMP3,
- OFFSET(vftbl_t, baseval),
- REG_ITMP3);
- M_LSUB(REG_ITMP3, REG_ITMP2);
- M_MOV_IMM(supervftbl, REG_ITMP3);
- M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
- /* } */
-#if defined(ENABLE_THREADS)
- codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
-#endif
- M_LCMP(REG_ITMP3, REG_ITMP2);
- M_BA(0); /* (u) REG_ITMP1 > (u) REG_ITMP2 -> jump */
- codegen_add_classcastexception_ref(cd, s1);
+ if (super != NULL)
+ emit_label(cd, BRANCH_LABEL_5);
+ }
+
+ if (super == NULL) {
+ emit_label(cd, BRANCH_LABEL_1);
+ emit_label(cd, BRANCH_LABEL_4);
}
d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
M_INTMOVE(s1, REG_A0);
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
- iptr->sx.s23.s3.c.ref, 0);
+ constant_classref *cr = iptr->sx.s23.s3.c.ref;
+ disp = dseg_add_unique_address(cd, cr);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd,
+ PATCHER_resolve_classref_to_classinfo,
+ cr, disp);
+ }
+ else {
+ disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
}
- M_MOV_IMM(iptr->sx.s23.s3.c.cls, REG_A1);
+ M_ALD(REG_A1, RIP, disp);
M_MOV_IMM(BUILTIN_arraycheckcast, REG_ITMP1);
M_CALL(REG_ITMP1);
/* s1 may have been destroyed over the function call */
s1 = emit_load_s1(jd, iptr, REG_ITMP2);
M_TEST(REG_RESULT);
- M_BEQ(0);
- codegen_add_classcastexception_ref(cd, s1);
+ emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
}
case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult */
- /* val.a: (classinfo *) superclass */
-
- /* superclass is an interface:
- *
- * return (sub != NULL) &&
- * (sub->vftbl->interfacetablelength > super->index) &&
- * (sub->vftbl->interfacetable[-super->index] != NULL);
- *
- * superclass is a class:
- *
- * return ((sub != NULL) && (0
- * <= (sub->vftbl->baseval - super->vftbl->baseval) <=
- * super->vftbl->diffvall));
- */
-
{
classinfo *super;
- vftbl_t *supervftbl;
s4 superindex;
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- super = NULL;
+ super = NULL;
superindex = 0;
- supervftbl = NULL;
-
- } else {
- super = iptr->sx.s23.s3.c.cls;
+ }
+ else {
+ super = iptr->sx.s23.s3.c.cls;
superindex = super->index;
- supervftbl = super->vftbl;
}
-#if defined(ENABLE_THREADS)
- codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
-
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
+
if (s1 == d) {
M_INTMOVE(s1, REG_ITMP1);
s1 = REG_ITMP1;
}
- /* calculate interface instanceof code size */
-
- s2 = 3; /* mov_membase_reg */
- CALCOFFSETBYTES(s2, s1, OFFSET(java_objectheader, vftbl));
- s2 += 3 + 4 /* movl_membase32_reg */ + 3 + 4 /* sub_imm32 */ +
- 3 /* test */ + 6 /* jcc */ + 3 + 4 /* mov_membase32_reg */ +
- 3 /* test */ + 4 /* setcc */;
-
- if (!super)
- s2 += (opt_showdisassemble ? 5 : 0);
-
- /* calculate class instanceof code size */
-
- s3 = 3; /* mov_membase_reg */
- CALCOFFSETBYTES(s3, s1, OFFSET(java_objectheader, vftbl));
- s3 += 10; /* mov_imm_reg */
- s3 += 2; /* movl_membase_reg - only if REG_ITMP1 == RAX */
- CALCOFFSETBYTES(s3, REG_ITMP1, OFFSET(vftbl_t, baseval));
- s3 += 3; /* movl_membase_reg - only if REG_ITMP2 == R10 */
- CALCOFFSETBYTES(s3, REG_ITMP2, OFFSET(vftbl_t, baseval));
- s3 += 3; /* movl_membase_reg - only if REG_ITMP2 == R10 */
- CALCOFFSETBYTES(s3, REG_ITMP2, OFFSET(vftbl_t, diffval));
- s3 += 3 /* sub */ + 3 /* xor */ + 3 /* cmp */ + 4 /* setcc */;
-
- if (!super)
- s3 += (opt_showdisassemble ? 5 : 0);
-
- emit_alu_reg_reg(cd, ALU_XOR, d, d);
+ M_CLR(d);
/* if class is not resolved, check which code to call */
- if (!super) {
- emit_test_reg_reg(cd, s1, s1);
- emit_jcc(cd, CC_Z, (6 + (opt_showdisassemble ? 5 : 0) +
- 7 + 6 + s2 + 5 + s3));
-
- codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
- iptr->sx.s23.s3.c.ref, 0);
+ if (super == NULL) {
+ M_TEST(s1);
+ emit_label_beq(cd, BRANCH_LABEL_1);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
+ iptr->sx.s23.s3.c.ref, 0);
- emit_movl_imm_reg(cd, 0, REG_ITMP3); /* super->flags */
- emit_alul_imm_reg(cd, ALU_AND, ACC_INTERFACE, REG_ITMP3);
- emit_jcc(cd, CC_Z, s2 + 5);
+ M_IMOV_IMM(0, REG_ITMP3); /* super->flags */
+ M_IAND_IMM(ACC_INTERFACE, REG_ITMP3);
+ emit_label_beq(cd, BRANCH_LABEL_2);
}
/* interface instanceof code */
- if (!super || (super->flags & ACC_INTERFACE)) {
- if (super) {
- emit_test_reg_reg(cd, s1, s1);
- emit_jcc(cd, CC_Z, s2);
+ if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
+ if (super != NULL) {
+ M_TEST(s1);
+ emit_label_beq(cd, BRANCH_LABEL_3);
}
- emit_mov_membase_reg(cd, s1,
- OFFSET(java_objectheader, vftbl),
- REG_ITMP1);
- if (!super) {
- codegen_addpatchref(cd,
- PATCHER_checkcast_instanceof_interface,
- iptr->sx.s23.s3.c.ref, 0);
+ M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ if (super == NULL) {
+ patcher_add_patch_ref(jd, PATCHER_instanceof_interface,
+ iptr->sx.s23.s3.c.ref, 0);
}
- emit_movl_membase32_reg(cd, REG_ITMP1,
- OFFSET(vftbl_t, interfacetablelength),
- REG_ITMP3);
- emit_alu_imm32_reg(cd, ALU_SUB, superindex, REG_ITMP3);
- emit_test_reg_reg(cd, REG_ITMP3, REG_ITMP3);
+ M_ILD32(REG_ITMP3,
+ REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
+ M_ICMP_IMM32(superindex, REG_ITMP3);
- a = 3 + 4 /* mov_membase32_reg */ + 3 /* test */ + 4 /* setcc */;
+ int a = 3 + 4 /* mov_membase32_reg */ + 3 /* test */ + 4 /* setcc */;
- emit_jcc(cd, CC_LE, a);
- emit_mov_membase32_reg(cd, REG_ITMP1,
- OFFSET(vftbl_t, interfacetable[0]) -
- superindex * sizeof(methodptr*),
- REG_ITMP1);
- emit_test_reg_reg(cd, REG_ITMP1, REG_ITMP1);
- emit_setcc_reg(cd, CC_NE, d);
+ M_BLE(a);
+ M_ALD32(REG_ITMP1, REG_ITMP1,
+ OFFSET(vftbl_t, interfacetable[0]) -
+ superindex * sizeof(methodptr*));
+ M_TEST(REG_ITMP1);
+ M_SETNE(d);
- if (!super)
- emit_jmp_imm(cd, s3);
+ if (super == NULL)
+ emit_label_br(cd, BRANCH_LABEL_4);
+ else
+ emit_label(cd, BRANCH_LABEL_3);
}
/* class instanceof code */
- if (!super || !(super->flags & ACC_INTERFACE)) {
- if (super) {
- emit_test_reg_reg(cd, s1, s1);
- emit_jcc(cd, CC_E, s3);
+ if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
+ if (super == NULL) {
+ emit_label(cd, BRANCH_LABEL_2);
+
+ constant_classref *cr = iptr->sx.s23.s3.c.ref;
+ disp = dseg_add_unique_address(cd, cr);
+
+ patcher_add_patch_ref(jd,
+ PATCHER_resolve_classref_to_vftbl,
+ cr, disp);
+ }
+ else {
+ M_TEST(s1);
+ emit_label_beq(cd, BRANCH_LABEL_5);
+
+ disp = dseg_add_address(cd, super->vftbl);
}
- emit_mov_membase_reg(cd, s1,
- OFFSET(java_objectheader, vftbl),
- REG_ITMP1);
+ M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
+ M_ALD(REG_ITMP3, RIP, disp);
+
+ if (super == NULL || super->vftbl->subtype_depth >= DISPLAY_SIZE) {
+ M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
+ M_LCMP_MEMINDEX(REG_ITMP2, 0, REG_ITMP1, 0, REG_ITMP3);
+ emit_label_bne(cd, BRANCH_LABEL_8); /* jump over INC/SETE */
+ if (d == REG_ITMP2) {
+ M_SETE(d);
+ M_BSEXT(d, d);
+ } else
+ M_LINC(d);
+ emit_label_br(cd, BRANCH_LABEL_6); /* true */
+ emit_label(cd, BRANCH_LABEL_8);
+
+ if (super == NULL) {
+ M_LCMP_IMM(OFFSET(vftbl_t, subtype_display[DISPLAY_SIZE]), REG_ITMP1);
+ emit_label_bne(cd, BRANCH_LABEL_10); /* false */
+ }
+
+ M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_depth));
+ M_ICMP_MEMBASE(REG_ITMP2, OFFSET(vftbl_t, subtype_depth), REG_ITMP1);
+ emit_label_bgt(cd, BRANCH_LABEL_9); /* false */
+
+ M_ALD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, subtype_overflow));
+ M_LCMP_MEMINDEX(REG_ITMP2, -8*DISPLAY_SIZE, REG_ITMP1, 3, REG_ITMP3);
+ M_SETE(d);
+ if (d == REG_ITMP2) {
+ M_BSEXT(d, d);
- if (!super) {
- codegen_addpatchref(cd, PATCHER_instanceof_class,
- iptr->sx.s23.s3.c.ref, 0);
+ emit_label_br(cd, BRANCH_LABEL_7); /* jump over M_CLR */
+ }
+
+ emit_label(cd, BRANCH_LABEL_9);
+ if (super == NULL)
+ emit_label(cd, BRANCH_LABEL_10);
+ if (d == REG_ITMP2) {
+ M_CLR(d);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
+ emit_label(cd, BRANCH_LABEL_7);
}
+ emit_label(cd, BRANCH_LABEL_6);
+ }
+ else {
+ M_LCMP_MEMBASE(REG_ITMP2, super->vftbl->subtype_offset, REG_ITMP3);
+ M_SETE(d);
+ if (d == REG_ITMP2)
+ M_BSEXT(d, d);
}
- emit_mov_imm_reg(cd, (ptrint) supervftbl, REG_ITMP2);
-#if defined(ENABLE_THREADS)
- codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
- emit_movl_membase_reg(cd, REG_ITMP1,
- OFFSET(vftbl_t, baseval),
- REG_ITMP1);
- emit_movl_membase_reg(cd, REG_ITMP2,
- OFFSET(vftbl_t, diffval),
- REG_ITMP3);
- emit_movl_membase_reg(cd, REG_ITMP2,
- OFFSET(vftbl_t, baseval),
- REG_ITMP2);
-#if defined(ENABLE_THREADS)
- codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
-#endif
- emit_alu_reg_reg(cd, ALU_SUB, REG_ITMP2, REG_ITMP1);
- emit_alu_reg_reg(cd, ALU_XOR, d, d); /* may be REG_ITMP2 */
- emit_alu_reg_reg(cd, ALU_CMP, REG_ITMP3, REG_ITMP1);
- emit_setcc_reg(cd, CC_BE, d);
+ if (super != NULL)
+ emit_label(cd, BRANCH_LABEL_5);
+ }
+
+ if (super == NULL) {
+ emit_label(cd, BRANCH_LABEL_1);
+ emit_label(cd, BRANCH_LABEL_4);
}
+
emit_store_dst(jd, iptr, d);
}
break;
}
}
+ /* a0 = dimension count */
+
+ M_MOV_IMM(iptr->s1.argcount, REG_A0);
+
/* is a patcher function set? */
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
- iptr->sx.s23.s3.c.ref, 0);
+ constant_classref *cr = iptr->sx.s23.s3.c.ref;
+ disp = dseg_add_unique_address(cd, cr);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
+ patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
+ cr, disp);
+ }
+ else {
+ disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
}
-
- /* a0 = dimension count */
-
- M_MOV_IMM(iptr->s1.argcount, REG_A0);
/* a1 = classinfo */
- M_MOV_IMM(iptr->sx.s23.s3.c.cls, REG_A1);
+ M_ALD(REG_A1, RIP, disp);
/* a2 = pointer to dimensions = stack pointer */
/* check for exception before result assignment */
- M_TEST(REG_RESULT);
- M_BEQ(0);
- codegen_add_fillinstacktrace_ref(cd);
+ emit_exception_check(cd, iptr);
s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
M_INTMOVE(REG_RESULT, s1);
break;
default:
- *exceptionptr = new_internalerror("Unknown ICMD %d", iptr->opc);
- return false;
+ vm_abort("Unknown ICMD %d during code generation", iptr->opc);
} /* switch */
-
- } /* for instruction */
-
- MCODECHECK(512); /* XXX require a lower number? */
-
- /* At the end of a basic block we may have to append some nops,
- because the patcher stub calling code might be longer than the
- actual instruction. So codepatching does not change the
- following block unintentionally. */
-
- if (cd->mcodeptr < cd->lastmcodeptr) {
- while (cd->mcodeptr < cd->lastmcodeptr) {
- M_NOP;
- }
- }
-
- } /* if (bptr -> flags >= BBREACHED) */
- } /* for basic block */
-
- dseg_createlinenumbertable(cd);
-
- /* generate stubs */
-
- emit_exception_stubs(jd);
- emit_patcher_stubs(jd);
-#if 0
- emit_replacement_stubs(jd);
-#endif
-
- codegen_finish(jd);
-
- /* everything's ok */
-
- return true;
}
-/* createcompilerstub **********************************************************
-
- Creates a stub routine which calls the compiler.
-
-*******************************************************************************/
-
-#define COMPILERSTUB_DATASIZE 3 * SIZEOF_VOID_P
-#define COMPILERSTUB_CODESIZE 7 + 7 + 3
+/* codegen_emit_stub_native ****************************************************
-#define COMPILERSTUB_SIZE COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
+ Emits a stub routine which calls a native method.
+*******************************************************************************/
-u1 *createcompilerstub(methodinfo *m)
+void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
{
- u1 *s; /* memory to hold the stub */
- ptrint *d;
+ methodinfo *m;
codeinfo *code;
codegendata *cd;
- s4 dumpsize;
-
- s = CNEW(u1, COMPILERSTUB_SIZE);
-
- /* set data pointer and code pointer */
-
- d = (ptrint *) s;
- s = s + COMPILERSTUB_DATASIZE;
-
- /* mark start of dump memory area */
-
- dumpsize = dump_size();
+ methoddesc *md;
+ int i, j;
+ int s1, s2;
+ int disp;
- cd = DNEW(codegendata);
- cd->mcodeptr = s;
+ /* Sanity check. */
- /* Store the codeinfo pointer in the same place as in the
- methodheader for compiled methods. */
-
- code = code_codeinfo_new(m);
-
- d[0] = (ptrint) asm_call_jit_compiler;
- d[1] = (ptrint) m;
- d[2] = (ptrint) code;
-
- /* code for the stub */
-
- M_ALD(REG_ITMP1, RIP, -(7 * 1 + 2 * SIZEOF_VOID_P)); /* methodinfo */
- M_ALD(REG_ITMP3, RIP, -(7 * 2 + 3 * SIZEOF_VOID_P)); /* compiler pointer */
- M_JMP(REG_ITMP3);
-
-#if defined(ENABLE_STATISTICS)
- if (opt_stat)
- count_cstub_len += COMPILERSTUB_SIZE;
-#endif
-
- /* release dump area */
-
- dump_release(dumpsize);
-
- return s;
-}
-
-
-/* createnativestub ************************************************************
-
- Creates a stub routine which calls a native method.
-
-*******************************************************************************/
+ assert(f != NULL);
-u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
-{
- methodinfo *m;
- codeinfo *code;
- codegendata *cd;
- registerdata *rd;
- methoddesc *md;
- s4 nativeparams;
- s4 i, j; /* count variables */
- s4 t;
- s4 s1, s2;
-
- /* get required compiler data */
+ /* Get required compiler data. */
m = jd->m;
code = jd->code;
cd = jd->cd;
- rd = jd->rd;
/* initialize variables */
md = m->parseddesc;
- nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
/* calculate stack frame size */
cd->stackframesize =
- sizeof(stackframeinfo) / SIZEOF_VOID_P +
+ sizeof(stackframeinfo_t) / SIZEOF_VOID_P +
sizeof(localref_table) / SIZEOF_VOID_P +
- INT_ARG_CNT + FLT_ARG_CNT +
- 1 + /* functionptr, TODO: store in data segment */
+ md->paramcount +
+ (md->returntype.type == TYPE_VOID ? 0 : 1) +
nmd->memuse;
- cd->stackframesize |= 0x1; /* keep stack 16-byte aligned */
+ ALIGN_ODD(cd->stackframesize); /* keep stack 16-byte aligned */
/* create method header */
- (void) dseg_addaddress(cd, code); /* CodeinfoPointer */
- (void) dseg_adds4(cd, cd->stackframesize * 8); /* FrameSize */
- (void) dseg_adds4(cd, 0); /* IsSync */
- (void) dseg_adds4(cd, 0); /* IsLeaf */
- (void) dseg_adds4(cd, 0); /* IntSave */
- (void) dseg_adds4(cd, 0); /* FltSave */
- (void) dseg_addlinenumbertablesize(cd);
- (void) dseg_adds4(cd, 0); /* ExTableSize */
+ (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
+ (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize */
+ (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
+ (void) dseg_add_unique_s4(cd, 0); /* IntSave */
+ (void) dseg_add_unique_s4(cd, 0); /* FltSave */
+#if defined(ENABLE_PROFILING)
/* generate native method profiling code */
if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
M_MOV_IMM(code, REG_ITMP3);
M_IINC_MEMBASE(REG_ITMP3, OFFSET(codeinfo, frequency));
}
+#endif
/* generate stub code */
M_ASUB_IMM(cd->stackframesize * 8, REG_SP);
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_enter(jd);
-#endif
-
- /* get function address (this must happen before the stackframeinfo) */
+#if defined(ENABLE_GC_CACAO)
+ /* Save callee saved integer registers in stackframeinfo (GC may
+ need to recover them during a collection). */
-#if !defined(WITH_STATIC_CLASSPATH)
- if (f == NULL) {
- codegen_addpatchref(cd, PATCHER_resolve_native, m, 0);
+ disp = cd->stackframesize * 8 - sizeof(stackframeinfo_t) +
+ OFFSET(stackframeinfo_t, intregs);
- if (opt_showdisassemble) {
- M_NOP; M_NOP; M_NOP; M_NOP; M_NOP;
- }
- }
+ for (i = 0; i < INT_SAV_CNT; i++)
+ M_AST(abi_registers_integer_saved[i], REG_SP, disp + i * 8);
#endif
- M_MOV_IMM(f, REG_ITMP3);
-
-
/* save integer and float argument registers */
- for (i = 0, j = 0; i < md->paramcount; i++) {
+ for (i = 0; i < md->paramcount; i++) {
if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
- if (IS_INT_LNG_TYPE(md->paramtypes[i].type))
- M_LST(rd->argintregs[s1], REG_SP, j * 8);
- else
- M_DST(rd->argfltregs[s1], REG_SP, j * 8);
-
- j++;
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ M_LST(s1, REG_SP, i * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(s1, REG_SP, i * 8);
+ break;
+ }
}
}
- M_AST(REG_ITMP3, REG_SP, (INT_ARG_CNT + FLT_ARG_CNT) * 8);
-
/* create dynamic stack info */
- M_ALEA(REG_SP, cd->stackframesize * 8, REG_A0);
+ M_MOV(REG_SP, REG_A0);
emit_lea_membase_reg(cd, RIP, -((cd->mcodeptr + 7) - cd->mcodebase), REG_A1);
- M_ALEA(REG_SP, cd->stackframesize * 8 + SIZEOF_VOID_P, REG_A2);
- M_ALD(REG_A3, REG_SP, cd->stackframesize * 8);
M_MOV_IMM(codegen_start_native_call, REG_ITMP1);
M_CALL(REG_ITMP1);
+ /* remember class argument */
+
+ if (m->flags & ACC_STATIC)
+ M_MOV(REG_RESULT, REG_ITMP2);
+
/* restore integer and float argument registers */
- for (i = 0, j = 0; i < md->paramcount; i++) {
+ for (i = 0; i < md->paramcount; i++) {
if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
- if (IS_INT_LNG_TYPE(md->paramtypes[i].type))
- M_LLD(rd->argintregs[s1], REG_SP, j * 8);
- else
- M_DLD(rd->argfltregs[s1], REG_SP, j * 8);
-
- j++;
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ M_LLD(s1, REG_SP, i * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(s1, REG_SP, i * 8);
+ break;
+ }
}
}
- M_ALD(REG_ITMP3, REG_SP, (INT_ARG_CNT + FLT_ARG_CNT) * 8);
-
-
- /* copy or spill arguments to new locations */
+ /* Copy or spill arguments to new locations. */
- for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
- t = md->paramtypes[i].type;
+ for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
+ s2 = nmd->params[j].regoff;
- if (IS_INT_LNG_TYPE(t)) {
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
if (!md->params[i].inmemory) {
- s1 = rd->argintregs[md->params[i].regoff];
+ s1 = md->params[i].regoff;
- if (!nmd->params[j].inmemory) {
- s2 = rd->argintregs[nmd->params[j].regoff];
+ if (!nmd->params[j].inmemory)
M_INTMOVE(s1, s2);
-
- } else {
- s2 = nmd->params[j].regoff;
- M_LST(s1, REG_SP, s2 * 8);
- }
-
- } else {
- s1 = md->params[i].regoff + cd->stackframesize + 1; /* + 1 (RA) */
- s2 = nmd->params[j].regoff;
- M_LLD(REG_ITMP1, REG_SP, s1 * 8);
- M_LST(REG_ITMP1, REG_SP, s2 * 8);
+ else
+ M_LST(s1, REG_SP, s2);
+ }
+ else {
+ s1 = md->params[i].regoff + cd->stackframesize * 8 + 8;/* +1 (RA) */
+ M_LLD(REG_ITMP1, REG_SP, s1);
+ M_LST(REG_ITMP1, REG_SP, s2);
}
+ break;
+ case TYPE_FLT:
+ /* We only copy spilled float arguments, as the float
+ argument registers keep unchanged. */
- } else {
- /* We only copy spilled float arguments, as the float argument */
- /* registers keep unchanged. */
+ if (md->params[i].inmemory) {
+ s1 = md->params[i].regoff + cd->stackframesize * 8 + 8;/* +1 (RA) */
+ M_FLD(REG_FTMP1, REG_SP, s1);
+ M_FST(REG_FTMP1, REG_SP, s2);
+ }
+ break;
+ case TYPE_DBL:
if (md->params[i].inmemory) {
- s1 = md->params[i].regoff + cd->stackframesize + 1; /* + 1 (RA) */
- s2 = nmd->params[j].regoff;
-
- if (IS_2_WORD_TYPE(t)) {
- M_DLD(REG_FTMP1, REG_SP, s1 * 8);
- M_DST(REG_FTMP1, REG_SP, s2 * 8);
- } else {
- M_FLD(REG_FTMP1, REG_SP, s1 * 8);
- M_FST(REG_FTMP1, REG_SP, s2 * 8);
- }
+ s1 = md->params[i].regoff + cd->stackframesize * 8 + 8;/* +1 (RA) */
+ M_DLD(REG_FTMP1, REG_SP, s1);
+ M_DST(REG_FTMP1, REG_SP, s2);
}
+ break;
}
}
- /* put class into second argument register */
+ /* Handle native Java methods. */
- if (m->flags & ACC_STATIC)
- M_MOV_IMM(m->class, REG_A1);
+ if (m->flags & ACC_NATIVE) {
+ /* put class into second argument register */
- /* put env into first argument register */
+ if (m->flags & ACC_STATIC)
+ M_MOV(REG_ITMP2, REG_A1);
- M_MOV_IMM(_Jv_env, REG_A0);
+ /* put env into first argument register */
+
+ M_MOV_IMM(VM_get_jnienv(), REG_A0);
+ }
- /* do the native function call */
+ /* Call the native function. */
- M_CALL(REG_ITMP3);
+ disp = dseg_add_functionptr(cd, f);
+ M_ALD(REG_ITMP1, RIP, disp);
+ M_CALL(REG_ITMP1);
/* save return value */
- if (md->returntype.type != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(md->returntype.type))
- M_LST(REG_RESULT, REG_SP, 0 * 8);
- else
- M_DST(REG_FRESULT, REG_SP, 0 * 8);
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ switch (md->returntype.primitivetype) {
+ case PRIMITIVETYPE_BOOLEAN:
+ M_BZEXT(REG_RESULT, REG_RESULT);
+ break;
+ case PRIMITIVETYPE_BYTE:
+ M_BSEXT(REG_RESULT, REG_RESULT);
+ break;
+ case PRIMITIVETYPE_CHAR:
+ M_CZEXT(REG_RESULT, REG_RESULT);
+ break;
+ case PRIMITIVETYPE_SHORT:
+ M_SSEXT(REG_RESULT, REG_RESULT);
+ break;
+ }
+ M_LST(REG_RESULT, REG_SP, 0 * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, 0 * 8);
+ break;
+ case TYPE_VOID:
+ break;
}
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_exit(jd);
-#endif
-
/* remove native stackframe info */
- M_ALEA(REG_SP, cd->stackframesize * 8, REG_A0);
+ M_MOV(REG_SP, REG_A0);
+ emit_lea_membase_reg(cd, RIP, -((cd->mcodeptr + 7) - cd->mcodebase), REG_A1);
M_MOV_IMM(codegen_finish_native_call, REG_ITMP1);
M_CALL(REG_ITMP1);
M_MOV(REG_RESULT, REG_ITMP3);
/* restore return value */
- if (md->returntype.type != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(md->returntype.type))
- M_LLD(REG_RESULT, REG_SP, 0 * 8);
- else
- M_DLD(REG_FRESULT, REG_SP, 0 * 8);
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ M_LLD(REG_RESULT, REG_SP, 0 * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, 0 * 8);
+ break;
+ case TYPE_VOID:
+ break;
}
+#if defined(ENABLE_GC_CACAO)
+ /* Restore callee saved integer registers from stackframeinfo (GC
+ might have modified them during a collection). */
+
+ disp = cd->stackframesize * 8 - sizeof(stackframeinfo_t) +
+ OFFSET(stackframeinfo_t, intregs);
+
+ for (i = 0; i < INT_SAV_CNT; i++)
+ M_ALD(abi_registers_integer_saved[i], REG_SP, disp + i * 8);
+#endif
+
/* remove stackframe */
M_AADD_IMM(cd->stackframesize * 8, REG_SP);
M_MOV_IMM(asm_handle_nat_exception, REG_ITMP3);
M_JMP(REG_ITMP3);
-
- /* generate patcher stubs */
-
- emit_patcher_stubs(jd);
-
- codegen_finish(jd);
-
- return code->entrypoint;
}
projects / cacao.git / blobdiff