/* src/vm/jit/s390/emit.c - s390 code emitter functions
- Copyright (C) 1996-2005, 2006, 2007 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, 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.
- $Id: emit.c 8240 2007-07-29 20:36:47Z pm $
-
*/
-
#include "config.h"
#include <assert.h>
-
-#include "vm/types.h"
-
-#include "md-abi.h"
+#include <stdint.h>
#include "vm/jit/s390/codegen.h"
#include "vm/jit/s390/emit.h"
+#include "vm/jit/s390/md-abi.h"
-#if defined(ENABLE_THREADS)
-# include "threads/native/lock.h"
-#endif
+#include "mm/memory.hpp"
-#include "vm/builtin.h"
+#include "threads/lock.hpp"
+
+#include "vm/jit/builtin.hpp"
+#include "vm/global.h"
+#include "vm/types.h"
+#include "vm/options.h"
+
+#include "vm/jit/abi.h"
#include "vm/jit/abi-asm.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
-#include "vm/jit/replace.h"
-#include "vm/jit/abi.h"
-#include "vm/global.h"
-#include "mm/memory.h"
-#include "vm/exceptions.h"
+#include "vm/jit/codegen-common.hpp"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/jit.hpp"
+#include "vm/jit/patcher-common.hpp"
+#include "vm/jit/replace.hpp"
+#include "vm/jit/trace.hpp"
+#include "vm/jit/trap.hpp"
-#define __PORTED__
/* emit_load *******************************************************************
*******************************************************************************/
-__PORTED__ s4 emit_load(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
+s4 emit_load(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
{
codegendata *cd;
s4 disp;
*******************************************************************************/
-__PORTED__ inline void emit_store(jitdata *jd, instruction *iptr, varinfo *dst, s4 d)
+void emit_store(jitdata *jd, instruction *iptr, varinfo *dst, s4 d)
{
codegendata *cd;
*******************************************************************************/
-__PORTED__ void emit_copy(jitdata *jd, instruction *iptr)
+void emit_copy(jitdata *jd, instruction *iptr)
{
codegendata *cd;
varinfo *src;
return;
}
- /* If one of the variables resides in memory, we can eliminate
- the register move from/to the temporary register with the
- order of getting the destination register and the load. */
-
- if (IS_INMEMORY(src->flags)) {
- if (IS_FLT_DBL_TYPE(dst->type)) {
- d = codegen_reg_of_var(iptr->opc, dst, REG_FTMP1);
+ if (IS_INMEMORY(src->flags) && IS_INMEMORY(dst->flags)) {
+ if (IS_2_WORD_TYPE(src->type)) {
+ N_MVC(dst->vv.regoff, 8, REG_SP, src->vv.regoff, REG_SP);
} else {
- if (IS_2_WORD_TYPE(dst->type)) {
- d = codegen_reg_of_var(iptr->opc, dst, REG_ITMP12_PACKED);
+ N_MVC(dst->vv.regoff, 4, REG_SP, src->vv.regoff, REG_SP);
+ }
+ } else {
+
+ /* If one of the variables resides in memory, we can eliminate
+ the register move from/to the temporary register with the
+ order of getting the destination register and the load. */
+
+ if (IS_INMEMORY(src->flags)) {
+ if (IS_FLT_DBL_TYPE(dst->type)) {
+ d = codegen_reg_of_var(iptr->opc, dst, REG_FTMP1);
} else {
- d = codegen_reg_of_var(iptr->opc, dst, REG_ITMP1);
+ if (IS_2_WORD_TYPE(dst->type)) {
+ d = codegen_reg_of_var(iptr->opc, dst, REG_ITMP12_PACKED);
+ } else {
+ d = codegen_reg_of_var(iptr->opc, dst, REG_ITMP1);
+ }
}
+ s1 = emit_load(jd, iptr, src, d);
}
- s1 = emit_load(jd, iptr, src, d);
- }
- else {
- if (IS_FLT_DBL_TYPE(src->type)) {
- s1 = emit_load(jd, iptr, src, REG_FTMP1);
- } else {
- if (IS_2_WORD_TYPE(src->type)) {
- s1 = emit_load(jd, iptr, src, REG_ITMP12_PACKED);
+ else {
+ if (IS_FLT_DBL_TYPE(src->type)) {
+ s1 = emit_load(jd, iptr, src, REG_FTMP1);
} else {
- s1 = emit_load(jd, iptr, src, REG_ITMP1);
+ if (IS_2_WORD_TYPE(src->type)) {
+ s1 = emit_load(jd, iptr, src, REG_ITMP12_PACKED);
+ } else {
+ s1 = emit_load(jd, iptr, src, REG_ITMP1);
+ }
}
+ d = codegen_reg_of_var(iptr->opc, dst, s1);
}
- d = codegen_reg_of_var(iptr->opc, dst, s1);
- }
- if (s1 != d) {
- if (IS_FLT_DBL_TYPE(src->type)) {
- M_FMOV(s1, d);
- } else {
- if (IS_2_WORD_TYPE(src->type)) {
- M_LNGMOVE(s1, d);
+ if (s1 != d) {
+ if (IS_FLT_DBL_TYPE(src->type)) {
+ M_FMOV(s1, d);
} else {
- M_MOV(s1, d);
+ if (IS_2_WORD_TYPE(src->type)) {
+ M_LNGMOVE(s1, d);
+ } else {
+ M_MOV(s1, d);
+ }
}
}
- }
- emit_store(jd, iptr, dst, d);
+ emit_store(jd, iptr, dst, d);
+ }
}
}
-/* emit_patcher_stubs **********************************************************
-
- Generates the code for the patcher stubs.
-
-*******************************************************************************/
-
-__PORTED__ void emit_patcher_stubs(jitdata *jd)
+/**
+ * Emits code updating the condition register by comparing one integer
+ * register to an immediate integer value.
+ */
+void emit_icmp_imm(codegendata* cd, int reg, int32_t value)
{
-
- codegendata *cd;
- patchref *pref;
- u4 mcode;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
- s4 targetdisp;
- s4 disp;
- u1 *ref;
+ int32_t disp;
- /* get required compiler data */
-
- cd = jd->cd;
-
- /* generate code patching stub call code */
-
- targetdisp = 0;
-
- for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
- /* check code segment size */
-
- MCODECHECK(100);
-
- /* Get machine code which is patched back in later. The
- call is 1 instruction word long. */
-
- tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
-
- mcode = *((u4 *) tmpmcodeptr);
-
- /* Patch in the call to call the following code (done at
- compile time). */
-
- savedmcodeptr = cd->mcodeptr; /* save current mcodeptr */
- cd->mcodeptr = tmpmcodeptr; /* set mcodeptr to patch position */
-
- disp = (savedmcodeptr) - (tmpmcodeptr);
-
- if (! N_VALID_BRANCH(disp)) {
- /* Displacement overflow */
-
- /* If LONGBRANCHES is not set, the flag and the error flag */
-
- if (! CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) {
- cd->flags |= (CODEGENDATA_FLAG_ERROR |
- CODEGENDATA_FLAG_LONGBRANCHES);
- }
-
- /* If error flag is set, do nothing. The method has to be recompiled. */
-
- if (CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) && CODEGENDATA_HAS_FLAG_ERROR(cd)) {
- return;
- }
+ if (N_VALID_IMM(value)) {
+ M_ICMP_IMM(reg, value);
+ } else {
+ disp = dseg_add_s4(cd, value);
+ if (N_VALID_DSEG_DISP(disp)) {
+ N_C(reg, N_DSEG_DISP(disp), RN, REG_PV);
+ } else {
+ assert(reg != REG_ITMP2);
+ ICONST(REG_ITMP2, disp);
+ N_C(reg, -N_PV_OFFSET, REG_ITMP2, REG_PV);
}
+ }
+}
- if (CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) {
-
- /* Generating long branches */
-
- disp = dseg_add_s4(cd, savedmcodeptr - cd->mcodebase - N_PV_OFFSET);
-
- M_ILD_DSEG(REG_ITMP3, disp);
- M_AADD(REG_PV, REG_ITMP3);
- /* Do the branch at the end of NOP sequence.
- * This way the patch position is at a *fixed* offset
- * (PATCHER_LONGBRANCHES_NOPS_SKIP) of the return address.
- */
+/* emit_trap *******************************************************************
- cd->mcodeptr = tmpmcodeptr + PATCHER_LONGBRANCHES_NOPS_SKIP - SZ_BASR;
- M_JMP(REG_ITMP3, REG_ITMP3);
- } else {
+ Emit a trap instruction and return the original machine code.
- /* Generating short branches */
-
- M_BSR(REG_ITMP3, disp);
- }
+*******************************************************************************/
- cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
+uint32_t emit_trap(codegendata *cd)
+{
+ uint32_t mcode;
- /* create stack frame */
+ /* Get machine code which is patched back in later. The
+ trap is 2 bytes long. */
- M_ASUB_IMM(6 * 4, REG_SP);
+ mcode = *((u2 *) cd->mcodeptr);
- /* move return address onto stack */
+ M_ILL(TRAP_PATCHER);
- M_AST(REG_ITMP3, REG_SP, 5 * 4);
+ return mcode;
+}
- /* move pointer to java_objectheader onto stack */
+/**
+ * Generates synchronization code to enter a monitor.
+ */
#if defined(ENABLE_THREADS)
- /* create a virtual java_objectheader */
+void emit_monitor_enter(jitdata* jd, int32_t syncslot_offset)
+{
+ int32_t p;
+ int32_t disp;
- (void) dseg_add_unique_address(cd, NULL); /* flcword */
- (void) dseg_add_unique_address(cd, lock_get_initial_lock_word());
- disp = dseg_add_unique_address(cd, NULL); /* vftbl */
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
- M_LDA_DSEG(REG_ITMP3, disp);
- M_AST(REG_ITMP3, REG_SP, 4 * 4);
-#else
- /* nothing to do */
-#endif
+#if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ M_ASUB_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
- /* move machine code onto stack */
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_IST(abi_registers_integer_argument[p], REG_SP, p * 8);
- disp = dseg_add_s4(cd, mcode);
- M_ILD_DSEG(REG_ITMP3, disp);
- M_IST(REG_ITMP3, REG_SP, 3 * 4);
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DST(abi_registers_float_argument[p], REG_SP, (INT_ARG_CNT + p) * 8);
- /* move class/method/field reference onto stack */
+ syncslot_offset += (INT_ARG_CNT + FLT_ARG_CNT) * 8;
+ }
+#endif
- disp = dseg_add_address(cd, pref->ref);
- M_ALD_DSEG(REG_ITMP3, disp);
- M_AST(REG_ITMP3, REG_SP, 2 * 4);
+ /* decide which monitor enter function to call */
- /* move data segment displacement onto stack */
+ if (m->flags & ACC_STATIC) {
+ disp = dseg_add_address(cd, &m->clazz->object.header);
+ M_ALD_DSEG(REG_A0, disp);
+ }
+ else {
+ M_TEST(REG_A0);
+ M_BNE(SZ_BRC + SZ_ILL);
+ M_ILL(TRAP_NullPointerException);
+ }
- disp = dseg_add_s4(cd, pref->disp);
- M_ILD_DSEG(REG_ITMP3, disp);
- M_IST(REG_ITMP3, REG_SP, 1 * 4);
+ disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
+ M_ALD_DSEG(REG_ITMP2, disp);
- /* move patcher function pointer onto stack */
+ M_AST(REG_A0, REG_SP, syncslot_offset);
- disp = dseg_add_functionptr(cd, pref->patcher);
- M_ALD_DSEG(REG_ITMP3, disp);
- M_AST(REG_ITMP3, REG_SP, 0 * 4);
+ M_ASUB_IMM(96, REG_SP);
+ M_CALL(REG_ITMP2);
+ M_AADD_IMM(96, REG_SP);
- if (targetdisp == 0) {
- targetdisp = (cd->mcodeptr) - (cd->mcodebase);
+#if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_ILD(abi_registers_integer_argument[p], REG_SP, p * 8);
- disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
- M_ALD_DSEG(REG_ITMP3, disp);
- M_JMP(RN, REG_ITMP3);
- }
- else {
- disp = ((cd->mcodebase) + targetdisp) -
- (( cd->mcodeptr) );
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DLD(abi_registers_float_argument[p], REG_SP, (INT_ARG_CNT + p) * 8);
- emit_branch(cd, disp, BRANCH_UNCONDITIONAL, RN, 0);
- }
+ M_AADD_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
}
+#endif
}
+#endif
-/* emit_replacement_stubs ******************************************************
-
- Generates the code for the replacement stubs.
-
-*******************************************************************************/
-#if defined(ENABLE_REPLACEMENT)
-void emit_replacement_stubs(jitdata *jd)
+/**
+ * Generates synchronization code to leave a monitor.
+ */
+#if defined(ENABLE_THREADS)
+void emit_monitor_exit(jitdata* jd, int32_t syncslot_offset)
{
- codegendata *cd;
- codeinfo *code;
- rplpoint *rplp;
- s4 disp;
- s4 i, remain;
- u1 *savedmcodeptr;
-
- /* get required compiler data */
-
- cd = jd->cd;
- code = jd->code;
-
- rplp = code->rplpoints;
-
- /* store beginning of replacement stubs */
-
- code->replacementstubs = (u1*) (cd->mcodeptr - cd->mcodebase);
-
- for (i = 0; i < code->rplpointcount; ++i, ++rplp) {
- /* do not generate stubs for non-trappable points */
+ int32_t disp;
+
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+
+ /* we need to save the proper return value */
+
+ methoddesc* md = m->parseddesc;
+
+ switch (md->returntype.type) {
+ case TYPE_LNG:
+ M_IST(REG_RESULT2, REG_SP, syncslot_offset + 8 + 4);
+ /* fall through */
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(REG_RESULT , REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_FLT:
+ M_FST(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ }
- if (rplp->flags & RPLPOINT_FLAG_NOTRAP)
- continue;
+ M_ALD(REG_A0, REG_SP, syncslot_offset);
- /* check code segment size */
+ disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
+ M_ALD_DSEG(REG_ITMP2, disp);
- MCODECHECK(512);
+ M_ASUB_IMM(96, REG_SP);
+ M_CALL(REG_ITMP2);
+ M_AADD_IMM(96, REG_SP);
-#if !defined(NDEBUG)
- savedmcodeptr = cd->mcodeptr;
+ /* and now restore the proper return value */
+
+ switch (md->returntype.type) {
+ case TYPE_LNG:
+ M_ILD(REG_RESULT2, REG_SP, syncslot_offset + 8 + 4);
+ /* fall through */
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(REG_RESULT , REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_FLT:
+ M_FLD(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ }
+}
#endif
- /* create stack frame - 8-byte aligned */
-
- M_ASUB_IMM(REG_SP, 2 * 4);
- /* push address of `rplpoint` struct, will be used in asm_replacement_out */
-
- disp = dseg_add_address(cd, rplp);
- M_ALD_DSEG(REG_ITMP3, disp);
- M_AST(REG_ITMP3, REG_SP, 0 * 4);
+/**
+ * Emit profiling code for method frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_method(codegendata* cd, codeinfo* code)
+{
+ M_ALD_DSEG(REG_ITMP1, CodeinfoPointer);
+ ICONST(REG_ITMP2, 1);
+ N_AL(REG_ITMP2, OFFSET(codeinfo, frequency), RN, REG_ITMP1);
+ M_IST(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
+}
+#endif
- /* jump to replacement function */
- disp = dseg_add_functionptr(cd, asm_replacement_out);
- M_ALD_DSEG(REG_ITMP3, disp);
- M_JMP(RN, REG_ITMP3);
+/**
+ * Emit profiling code for basicblock frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_basicblock(codegendata* cd, codeinfo* code, basicblock* bptr)
+{
+ M_ALD_DSEG(REG_ITMP1, CodeinfoPointer);
+ M_ALD(REG_ITMP1, REG_ITMP1, OFFSET(codeinfo, bbfrequency));
+ ICONST(REG_ITMP2, 1);
+ N_AL(REG_ITMP2, bptr->nr * 4, RN, REG_ITMP1);
+ M_IST(REG_ITMP2, REG_ITMP1, bptr->nr * 4);
+}
+#endif
- assert((cd->mcodeptr - savedmcodeptr) <= REPLACEMENT_STUB_SIZE);
- /* pad with NOPs */
+/**
+ * Emit profiling code to start CPU cycle counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_cycle_start(codegendata* cd, codeinfo* code)
+{
+ // XXX Not implemented yet!
+}
+#endif
- for (remain = REPLACEMENT_STUB_SIZE - (cd->mcodeptr - savedmcodeptr); remain > 0;) {
- if (remain >= 4) {
- M_NOP;
- remain -= 4;
- } else {
- M_NOP2;
- remain -= 2;
- }
- }
- assert((cd->mcodeptr - savedmcodeptr) == REPLACEMENT_STUB_SIZE);
- }
+/**
+ * Emit profiling code to stop CPU cycle counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_cycle_stop(codegendata* cd, codeinfo* code)
+{
+ // XXX Not implemented yet!
}
#endif
+
/* emit_verbosecall_enter ******************************************************
Generates the code for the call trace.
#if !defined(NDEBUG)
void emit_verbosecall_enter(jitdata *jd)
{
-
methodinfo *m;
+ codeinfo *code;
codegendata *cd;
methoddesc *md;
- s4 i, j, k;
- s4 stackframesize, off, foff, aoff, doff, t, iargctr, fargctr, disp;
+ s4 stackframesize;
+ s4 i, off, disp, s;
- /* get required compiler data */
-
- m = jd->m;
- cd = jd->cd;
+ m = jd->m;
+ code = jd->code;
+ cd = jd->cd;
- md = m->parseddesc;
+ md = m->parseddesc;
/* mark trace code */
M_NOP;
- stackframesize =
- (6 * 8) + /* s8 on stack parameters x 6 */
- (1 * 4) + /* methodinfo on stack parameter */
- (ARG_CNT * 8) +
- (TMP_CNT * 8)
- ;
+ /* allocate stack frame */
- M_ASUB_IMM(stackframesize, REG_SP); /* allocate stackframe */
+ stackframesize = 96 + (md->paramcount * 8);
- /* save argument registers */
+ /* for leaf methods we need to store unused argument and temporary registers */
- off = (6 * 8) + (1 * 4);
-
- for (i = 0; i < INT_ARG_CNT; i++, off += 8)
- M_IST(abi_registers_integer_argument[i], REG_SP, off);
+ if (code_is_leafmethod(code)) {
+ stackframesize += (ARG_CNT + TMP_CNT) * 8;
+ }
- for (i = 0; i < FLT_ARG_CNT; i++, off += 8)
- M_DST(abi_registers_float_argument[i], REG_SP, off);
+ /* allocate stack frame */
+
+ M_ASUB_IMM(stackframesize, REG_SP);
+
+ /* store argument registers in array */
+
+ off = 96;
+
+ for (i = 0; i < md->paramcount; i++) {
+ if (! md->params[i].inmemory) {
+ s = md->params[i].regoff;
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(s, REG_SP, off);
+ break;
+ case TYPE_LNG:
+ M_LST(s, REG_SP, off);
+ break;
+ case TYPE_FLT:
+ M_FST(s, REG_SP, off);
+ break;
+ case TYPE_DBL:
+ M_DST(s, REG_SP, off);
+ break;
+ }
+ }
+ off += 8;
+ }
+ /* save unused (currently all) argument registers for leaf methods */
/* save temporary registers for leaf methods */
- if (jd->isleafmethod) {
- for (i = 0; i < INT_TMP_CNT; i++, off += 8)
- M_LST(abi_registers_integer_temporary[i], REG_SP, off);
+ if (code_is_leafmethod(code)) {
- for (i = 0; i < FLT_TMP_CNT; i++, off += 8)
- M_DST(abi_registers_float_temporary[i], REG_SP, off);
- }
-
- /* Load arguments to new locations */
+ for (i = 0; i < INT_ARG_CNT; ++i, off += 8) {
+ M_IST(abi_registers_integer_argument[i], REG_SP, off);
+ }
- /* First move all arguments to stack
- *
- * (s8) a7
- * (s8) a2
- * ...
- * (s8) a1 \ Auxilliary stack frame
- * (s8) a0 /
- * ------- <---- SP
- */
+ for (i = 0; i < FLT_ARG_CNT; ++i, off += 8) {
+ M_DST(abi_registers_float_argument[i], REG_SP, off);
+ }
- M_ASUB_IMM(2 * 8, REG_SP);
-
- /* offset to where first integer arg is saved on stack */
- off = (2 * 8) + (6 * 8) + (1 * 4);
- /* offset to where first float arg is saved on stack */
- foff = off + (INT_ARG_CNT * 8);
- /* offset to where first argument is passed on stack */
- aoff = (2 * 8) + stackframesize + (cd->stackframesize * 4);
- /* offset to destination on stack */
- doff = 0;
-
- iargctr = fargctr = 0;
-
- ICONST(REG_ITMP1, 0);
-
- for (i = 0; i < md->paramcount && i < 8; i++) {
- t = md->paramtypes[i].type;
-
- M_IST(REG_ITMP1, REG_SP, doff);
- M_IST(REG_ITMP1, REG_SP, doff + 4);
-
- if (IS_FLT_DBL_TYPE(t)) {
- if (fargctr < 2) { /* passed in register */
- N_STD(abi_registers_float_argument[fargctr], doff, RN, REG_SP);
- fargctr += 1;
- } else { /* passed on stack */
- if (IS_2_WORD_TYPE(t)) {
- N_MVC(doff, 8, REG_SP, aoff, REG_SP);
- aoff += 8;
- } else {
- N_MVC(doff + 4, 4, REG_SP, aoff, REG_SP);
- aoff += 4;
- }
- }
- } else {
- if (IS_2_WORD_TYPE(t)) {
- if (iargctr < 4) { /* passed in 2 registers */
- N_STM(REG_A0 + iargctr, REG_A0 + iargctr + 1, doff, REG_SP);
- iargctr += 2;
- } else { /* passed on stack */
- N_MVC(doff, 8, REG_SP, aoff, REG_SP);
- aoff += 8;
- }
- } else {
- if (iargctr < 5) { /* passed in register */
- N_ST(REG_A0 + iargctr, doff + 4, RN, REG_SP);
- iargctr += 1;
- } else { /* passed on stack */
- N_MVC(doff + 4, 4, REG_SP, aoff, REG_SP);
- aoff += 4;
- }
- }
+ for (i = 0; i < INT_TMP_CNT; ++i, off += 8) {
+ M_IST(abi_registers_integer_temporary[i], REG_SP, off);
}
- doff += 8;
+ for (i = 0; i < FLT_TMP_CNT; ++i, off += 8) {
+ M_DST(abi_registers_float_temporary[i], REG_SP, off);
+ }
}
- /* Now move a0 and a1 to registers
- *
- * (s8) a7
- * ...
- * (s8) a2
- * ------- <- SP
- * (s8) a0 ==> a0, a1
- * (s8) a1 ==> a2, a3
- */
-
- N_LM(REG_A0, REG_A1, 0, REG_SP);
- N_LM(REG_A2, REG_A3, 8, REG_SP);
-
- M_AADD_IMM(2 * 8, REG_SP);
+ /* load arguments for trace_java_call_enter */
- /* Finally load methodinfo argument */
+ /* methodinfo */
disp = dseg_add_address(cd, m);
- M_ALD_DSEG(REG_ITMP2, disp);
- M_AST(REG_ITMP2, REG_SP, 6 * 8);
+ M_ALD_DSEG(REG_A0, disp);
+ /* pointer to argument registers array */
+ M_LDA(REG_A1, REG_SP, 96);
+ /* pointer to on stack arguments */
+ M_LDA(REG_A2, REG_SP, stackframesize + (cd->stackframesize * 8));
- /* Call builtin_verbosecall_enter */
+ /* call trace_java_call_enter */
- disp = dseg_add_address(cd, builtin_verbosecall_enter);
+ disp = dseg_add_functionptr(cd, trace_java_call_enter);
M_ALD_DSEG(REG_ITMP2, disp);
- M_ASUB_IMM(96, REG_SP);
M_CALL(REG_ITMP2);
- M_AADD_IMM(96, REG_SP);
- /* restore argument registers */
+ /* restore used argument registers */
+ /* for leaf methods restore all argument and temporary registers */
- off = (6 * 8) + (1 * 4);
+ if (code_is_leafmethod(code)) {
+ off = 96 + (8 * md->paramcount);
- for (i = 0; i < INT_ARG_CNT; i++, off += 8)
- M_ILD(abi_registers_integer_argument[i], REG_SP, off);
-
- for (i = 0; i < FLT_ARG_CNT; i++, off += 8)
- M_DLD(abi_registers_float_argument[i], REG_SP, off);
+ for (i = 0; i < INT_ARG_CNT; ++i, off += 8) {
+ M_ILD(abi_registers_integer_argument[i], REG_SP, off);
+ }
- /* restore temporary registers for leaf methods */
+ for (i = 0; i < FLT_ARG_CNT; ++i, off += 8) {
+ M_DLD(abi_registers_float_argument[i], REG_SP, off);
+ }
- if (jd->isleafmethod) {
- for (i = 0; i < INT_TMP_CNT; i++, off += 8)
+ for (i = 0; i < INT_TMP_CNT; ++i, off += 8) {
M_ILD(abi_registers_integer_temporary[i], REG_SP, off);
+ }
- for (i = 0; i < FLT_TMP_CNT; i++, off += 8)
+ for (i = 0; i < FLT_TMP_CNT; ++i, off += 8) {
M_DLD(abi_registers_float_temporary[i], REG_SP, off);
+ }
+ } else {
+ off = 96;
+
+ for (i = 0; i < md->paramcount; i++) {
+ if (! md->params[i].inmemory) {
+ s = md->params[i].regoff;
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(s, REG_SP, off);
+ break;
+ case TYPE_LNG:
+ M_LLD(s, REG_SP, off);
+ break;
+ case TYPE_FLT:
+ M_FLD(s, REG_SP, off);
+ break;
+ case TYPE_DBL:
+ M_DLD(s, REG_SP, off);
+ break;
+ }
+ }
+ off += 8;
+ }
}
- /* remove stackframe */
+ /* remove stack frame */
M_AADD_IMM(stackframesize, REG_SP);
/* mark trace code */
M_NOP;
+
}
#endif /* !defined(NDEBUG) */
{
methodinfo *m;
codegendata *cd;
- registerdata *rd;
s4 disp;
-
- /* get required compiler data */
+ s4 stackframesize;
+ s4 off;
+ s4 t;
m = jd->m;
cd = jd->cd;
- rd = jd->rd;
+ t = m->parseddesc->returntype.type;
/* mark trace code */
M_NOP;
- M_ASUB_IMM(2 * 8, REG_SP);
+ /* allocate stackframe */
+
+ stackframesize = 96 + (1 * 8);
+ M_ASUB_IMM(stackframesize, REG_SP);
+
+ off = 96;
- N_STM(REG_RESULT, REG_RESULT2, 0 * 8, REG_SP);
- M_DST(REG_FRESULT, REG_SP, 1 * 8);
+ /* store return values in array */
- if (IS_2_WORD_TYPE(m->parseddesc->returntype.type)) {
- /* (REG_A0, REG_A1) == (REG_RESULT, REG_RESULT2), se no need to move */
+ if (IS_INT_LNG_TYPE(t)) {
+ if (IS_2_WORD_TYPE(t)) {
+ M_LST(REG_RESULT_PACKED, REG_SP, off);
+ } else {
+ M_IST(REG_RESULT, REG_SP, off);
+ }
} else {
- M_INTMOVE(REG_RESULT, REG_A1);
- ICONST(REG_A0, 0);
+ M_DST(REG_FRESULT, REG_SP, off);
}
+ /* call trace_java_call_exit */
+
disp = dseg_add_address(cd, m);
- M_ALD_DSEG(REG_A2, disp);
+ M_ALD_DSEG(REG_A0, disp);
+ M_LDA(REG_A1, REG_SP, off);
+ disp = dseg_add_functionptr(cd, trace_java_call_exit);
+ M_ALD_DSEG(REG_ITMP2, disp);
+ M_CALL(REG_ITMP2);
- /* REG_FRESULT is REG_FA0, so no need to move */
- M_FLTMOVE(REG_FRESULT, REG_FA1);
+ /* restore return value */
- disp = dseg_add_address(cd, builtin_verbosecall_exit);
- M_ALD_DSEG(REG_ITMP1, disp);
- M_ASUB_IMM(96, REG_SP);
- M_CALL(REG_ITMP1);
- M_AADD_IMM(96, REG_SP);
+ if (IS_INT_LNG_TYPE(t)) {
+ if (IS_2_WORD_TYPE(t)) {
+ M_LLD(REG_RESULT_PACKED, REG_SP, off);
+ } else {
+ M_ILD(REG_RESULT, REG_SP, off);
+ }
+ } else {
+ M_DLD(REG_FRESULT, REG_SP, off);
+ }
- N_LM(REG_RESULT, REG_RESULT2, 0 * 8, REG_SP);
- M_DLD(REG_FRESULT, REG_SP, 1 * 8);
+ /* remove stackframe */
- M_AADD_IMM(2 * 8, REG_SP);
+ M_AADD_IMM(stackframesize, REG_SP);
/* mark trace code */
*******************************************************************************/
-__PORTED__ s4 emit_load_high(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
+s4 emit_load_high(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
{
codegendata *cd;
s4 disp;
*******************************************************************************/
-__PORTED__ s4 emit_load_low(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
+s4 emit_load_low(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
{
codegendata *cd;
s4 disp;
return reg;
}
-s4 emit_load_s1_notzero(jitdata *jd, instruction *iptr, s4 tempreg) {
- codegendata *cd = jd->cd;
- s4 reg = emit_load_s1(jd, iptr, tempreg);
- if (reg == 0) {
- M_MOV(reg, tempreg);
- return tempreg;
- } else {
- return reg;
- }
-}
-
-s4 emit_load_s2_notzero(jitdata *jd, instruction *iptr, s4 tempreg) {
- codegendata *cd = jd->cd;
- s4 reg = emit_load_s2(jd, iptr, tempreg);
- if (reg == 0) {
- if (IS_FLT_DBL_TYPE(VAROP(iptr->sx.s23.s2)->type)) {
- M_FMOV(reg, tempreg);
- } else {
- M_MOV(reg, tempreg);
- }
- return tempreg;
- } else {
- return reg;
- }
-}
-
s4 emit_load_s1_but(jitdata *jd, instruction *iptr, s4 tempreg, s4 notreg) {
codegendata *cd = jd->cd;
s4 reg = emit_load_s1(jd, iptr, tempreg);
}
}
-s4 emit_alloc_dst_even_odd(jitdata *jd, instruction *iptr, s4 htmpreg, s4 ltmpreg, s4 breg) {
- codegendata *cd;
- s4 hr, lr;
- varinfo *dst;
-
- /* (r0, r1)
- * (r2, r3)
- * (r4, r5)
- * (r6, r7)
- * (r8, r9)
- * (r10, r11)
- * (r12, r13) Illegal, because r13 is PV
- * (r14, r15) Illegal, because r15 is SP
- */
-
- cd = jd->cd;
- dst = VAROP(iptr->dst);
-
- if (IS_INMEMORY(dst->flags)) {
- if (! IS_REG_ITMP(ltmpreg)) {
- M_INTMOVE(ltmpreg, breg);
- }
- if (! IS_REG_ITMP(htmpreg)) {
- M_INTMOVE(htmpreg, breg);
- }
- return PACK_REGS(ltmpreg, htmpreg);
- } else {
- hr = GET_HIGH_REG(dst->vv.regoff);
- lr = GET_LOW_REG(dst->vv.regoff);
- if (((hr % 2) == 0) && lr == (hr + 1)) {
- /* the result is already in a even-odd pair */
- return dst->vv.regoff;
- } else if (((hr % 2) == 0) && (hr < R12)) {
- /* the high register is at a even position */
- M_INTMOVE(hr + 1, breg);
- return PACK_REGS(hr + 1, hr);
- } else if (((lr % 2) == 1) && (lr < R12)) {
- /* the low register is at a odd position */
- M_INTMOVE(lr - 1, breg);
- return PACK_REGS(lr, lr - 1);
- } else {
- /* no way to create an even-odd pair by 1 copy operation,
- * Use the temporary register pair.
- */
- if (! IS_REG_ITMP(ltmpreg)) {
- M_INTMOVE(ltmpreg, breg);
- }
- if (! IS_REG_ITMP(htmpreg)) {
- M_INTMOVE(htmpreg, breg);
- }
- return PACK_REGS(ltmpreg, htmpreg);
- }
- }
-}
-
-void emit_restore_dst_even_odd(jitdata *jd, instruction *iptr, s4 htmpreg, s4 ltmpreg, s4 breg) {
- codegendata *cd;
- s4 hr, lr;
- varinfo *dst;
-
- cd = jd->cd;
- dst = VAROP(iptr->dst);
-
- if (IS_INMEMORY(dst->flags)) {
- if (! IS_REG_ITMP(ltmpreg)) {
- M_INTMOVE(breg, ltmpreg);
- }
- if (! IS_REG_ITMP(htmpreg)) {
- M_INTMOVE(breg, htmpreg);
- }
- } else {
- hr = GET_HIGH_REG(dst->vv.regoff);
- lr = GET_LOW_REG(dst->vv.regoff);
- if (((hr % 2) == 0) && lr == (hr + 1)) {
- return;
- } else if (((hr % 2) == 0) && (hr < R12)) {
- M_INTMOVE(breg, hr + 1);
- } else if (((lr % 2) == 1) && (lr < R12)) {
- M_INTMOVE(breg, lr - 1);
- } else {
- if (! IS_REG_ITMP(ltmpreg)) {
- M_INTMOVE(breg, ltmpreg);
- }
- if (! IS_REG_ITMP(htmpreg)) {
- M_INTMOVE(breg, htmpreg);
- }
- }
- }
-}
-
void emit_copy_dst(jitdata *jd, instruction *iptr, s4 dtmpreg) {
codegendata *cd;
varinfo *dst;
/* The actual long branch */
disp = dseg_add_s4(cd, branchmpc + disp - N_PV_OFFSET);
- M_ILD_DSEG(REG_ITMP3, disp);
- M_AADD(REG_PV, REG_ITMP3);
- M_JMP(RN, REG_ITMP3);
+ M_ILD_DSEG(REG_ITMP2, disp);
+ M_AADD(REG_PV, REG_ITMP2);
+ M_JMP(RN, REG_ITMP2);
/* Patch back the displacement */
- if (ref != NULL) {
- *(u4 *)ref |= (u4)((cd->mcodeptr - ref) / 2);
- }
+ N_BRC_BACK_PATCH(ref);
}
}
-void emit_arithmetic_check(codegendata *cd, instruction *iptr, s4 reg) {
+void emit_arithmetic_check(codegendata *cd, instruction *iptr, s4 reg)
+{
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TEST(reg);
M_BNE(SZ_BRC + SZ_ILL);
- M_ILL(EXCEPTION_HARDWARE_ARITHMETIC);
+ M_ILL(TRAP_ArithmeticException);
}
}
/* Size is s4, >= 0
* Do unsigned comparison to catch negative indexes.
*/
- N_CL(s2, OFFSET(java_arrayheader, size), RN, s1);
+ N_CL(s2, OFFSET(java_array_t, size), RN, s1);
M_BLT(SZ_BRC + SZ_ILL);
- M_ILL2(s2, EXCEPTION_HARDWARE_ARRAYINDEXOUTOFBOUNDS);
+ M_ILL2(s2, TRAP_ArrayIndexOutOfBoundsException);
}
}
+
+/* emit_arraystore_check *******************************************************
+
+ Emit an ArrayStoreException check.
+
+*******************************************************************************/
+
+void emit_arraystore_check(codegendata *cd, instruction *iptr)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_TEST(REG_RESULT);
+ M_BNE(SZ_BRC + SZ_ILL);
+ M_ILL(TRAP_ArrayStoreException);
+ }
+}
+
+
void emit_classcast_check(codegendata *cd, instruction *iptr, s4 condition, s4 reg, s4 s1) {
if (INSTRUCTION_MUST_CHECK(iptr)) {
if (reg != RN) {
default:
vm_abort("emit_classcast_check: unknown condition %d", condition);
}
- M_ILL2(s1, EXCEPTION_HARDWARE_CLASSCAST);
+ M_ILL2(s1, TRAP_ClassCastException);
}
}
-void emit_nullpointer_check(codegendata *cd, instruction *iptr, s4 reg) {
+void emit_nullpointer_check(codegendata *cd, instruction *iptr, s4 reg)
+{
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TEST(reg);
M_BNE(SZ_BRC + SZ_ILL);
- M_ILL(EXCEPTION_HARDWARE_NULLPOINTER);
+ M_ILL(TRAP_NullPointerException);
}
}
-void emit_exception_check(codegendata *cd, instruction *iptr) {
+void emit_exception_check(codegendata *cd, instruction *iptr)
+{
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TEST(REG_RESULT);
M_BNE(SZ_BRC + SZ_ILL);
- M_ILL(EXCEPTION_HARDWARE_EXCEPTION);
+ M_ILL(TRAP_CHECK_EXCEPTION);
}
}
-void emit_restore_pv(codegendata *cd) {
+void emit_recompute_pv(codegendata *cd) {
s4 offset, offset_imm;
/*
}
}
+/* emit_trap_compiler **********************************************************
+
+ Emit a trap instruction which calls the JIT compiler.
+
+*******************************************************************************/
+
+void emit_trap_compiler(codegendata *cd)
+{
+ M_ILL2(REG_METHODPTR, TRAP_COMPILER);
+}
+
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
projects / cacao.git / blobdiff