#include "vm/jit/parse.hpp"
#include "vm/jit/patcher-common.hpp"
#include "vm/jit/reg.h"
-#include "vm/jit/replace.hpp"
#include "vm/jit/stacktrace.hpp"
#include "vm/jit/trap.hpp"
-#if defined(ENABLE_SSA)
-# include "vm/jit/optimizing/lsra.h"
-# include "vm/jit/optimizing/ssa.h"
-#elif defined(ENABLE_LSRA)
-# include "vm/jit/allocator/lsra.h"
-#endif
-
-
-/* codegen_emit ****************************************************************
-
- Generates machine code.
-
-*******************************************************************************/
-bool codegen_emit(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;
- int align_off; /* offset for alignment compensation */
- varinfo *var, *var1;
- basicblock *bptr;
- instruction *iptr;
- u2 currentline;
- methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
- builtintable_entry *bte;
- methoddesc *md;
- fieldinfo *fi;
- unresolved_field *uf;
- s4 fieldtype;
- s4 varindex;
-#if defined(ENABLE_SSA)
- lsradata *ls;
- bool last_cmd_was_goto;
-
- last_cmd_was_goto = false;
- ls = jd->ls;
-#endif
-
- /* get required compiler data */
-
- m = jd->m;
- code = jd->code;
- cd = jd->cd;
- rd = jd->rd;
-
- /* prevent compiler warnings */
-
- s1 = 0;
- s2 = 0;
- d = 0;
- currentline = 0;
- lm = NULL;
- bte = NULL;
-
- {
- s4 i, p, t, l;
- s4 savedregs_num = 0;
- s4 stack_off = 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;
+ varinfo* var;
+ methoddesc* md;
+ int32_t s1, d;
+ int32_t p, t, l;
+ int32_t varindex;
+ int i;
+ int align_off;
+
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+ registerdata* rd = jd->rd;
-
-#if defined(ENABLE_THREADS)
- /* space to save argument of monitor_enter */
-
- if (checksync && code_is_synchronized(code))
- cd->stackframesize++;
-#endif
-
- /* create method header */
-
- /* Keep stack of non-leaf functions 16-byte aligned. */
-
- if (!code_is_leafmethod(code)) {
- ALIGN_ODD(cd->stackframesize);
- }
+ /* create stack frame (if necessary) */
align_off = cd->stackframesize ? 4 : 0;
- (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
- (void) dseg_add_unique_s4(
- cd, cd->stackframesize * 8 + align_off); /* FrameSize */
-
- code->synchronizedoffset = rd->memuse * 8;
-
- /* REMOVEME: We still need it for exception handling in assembler. */
-
- if (code_is_leafmethod(code))
- (void) dseg_add_unique_s4(cd, 1); /* IsLeaf */
- else
- (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
-
- (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
- (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
-
-#if defined(ENABLE_PROFILING)
- /* generate method profiling code */
-
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
- /* count frequency */
-
- M_MOV_IMM(code, REG_ITMP3);
- M_IADD_IMM_MEMBASE(1, REG_ITMP3, OFFSET(codeinfo, frequency));
- }
-#endif
-
- /* create stack frame (if necessary) */
-
- if (cd->stackframesize)
- /* align_off == 4 */
+ if (cd->stackframesize) {
+ assert(align_off == 4);
M_ASUB_IMM(cd->stackframesize * 8 + 4, REG_SP);
+ }
/* save return address and used callee saved registers */
md = m->parseddesc;
- stack_off = 0;
- for (p = 0, l = 0; p < md->paramcount; p++) {
- t = md->paramtypes[p].type;
+ for (p = 0, l = 0; p < md->paramcount; p++) {
+ t = md->paramtypes[p].type;
varindex = jd->local_map[l * 5 + t];
#if defined(ENABLE_SSA)
}
}
}
+}
- /* call monitorenter function */
-
-#if defined(ENABLE_THREADS)
- if (checksync && code_is_synchronized(code)) {
- s1 = rd->memuse;
-
- if (m->flags & ACC_STATIC) {
- M_MOV_IMM(&m->clazz->object.header, REG_ITMP1);
- }
- else {
- M_ALD(REG_ITMP1, REG_SP, cd->stackframesize * 8 + 4 + align_off);
- M_TEST(REG_ITMP1);
- M_BNE(6);
- M_ALD_MEM(REG_ITMP1, TRAP_NullPointerException);
- }
-
- M_AST(REG_ITMP1, REG_SP, s1 * 8);
- M_AST(REG_ITMP1, REG_SP, 0 * 4);
- M_MOV_IMM(LOCK_monitor_enter, REG_ITMP3);
- M_CALL(REG_ITMP3);
- }
-#endif
-
-#if !defined(NDEBUG)
- emit_verbosecall_enter(jd);
-#endif
-
- }
-
-#if defined(ENABLE_SSA)
- /* with SSA the Header is Basic Block 0 - insert phi Moves if necessary */
- if ( ls != NULL)
- codegen_emit_phi_moves(jd, ls->basicblocks[0]);
-#endif
-
- /* end of header generation */
-
- /* create replacement points */
-
- REPLACEMENT_POINTS_INIT(cd, jd);
-
- /* walk through all basic blocks */
-
- for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
-
- bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
-
- if (bptr->flags >= BBREACHED) {
- /* branch resolving */
-
- codegen_resolve_branchrefs(cd, bptr);
-
- /* handle replacement points */
-
- REPLACEMENT_POINT_BLOCK_START(cd, bptr);
-#if defined(ENABLE_REPLACEMENT)
- if (bptr->bitflags & BBFLAG_REPLACEMENT) {
- if (cd->replacementpoint[-1].flags & RPLPOINT_FLAG_COUNTDOWN) {
- MCODECHECK(32);
- emit_trap_countdown(cd, &(m->hitcountdown));
- }
- }
-#endif
+/**
+ * Generates machine code for the method epilog.
+ */
+void codegen_emit_epilog(jitdata* jd)
+{
+ methoddesc* md;
+ int32_t p;
+ int i;
- /* copy interface registers to their destination */
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+ registerdata* rd = jd->rd;
- len = bptr->indepth;
- MCODECHECK(512);
+ p = cd->stackframesize;
+ md = m->parseddesc;
-#if defined(ENABLE_PROFILING)
- /* generate basic block profiling code */
+ /* restore saved registers */
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
- /* count frequency */
+ for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
+ p--; M_ALD(rd->savintregs[i], REG_SP, p * 8);
+ }
- M_MOV_IMM(code->bbfrequency, REG_ITMP3);
- M_IADD_IMM_MEMBASE(1, REG_ITMP3, bptr->nr * 4);
+ for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
+ p--;
+ emit_fldl_membase(cd, REG_SP, p * 8);
+ if (md->returntype.type == TYPE_FLT || md->returntype.type == TYPE_DBL) {
+ assert(0);
+/* emit_fstp_reg(cd, rd->savfltregs[i] + fpu_st_offset + 1); */
+ } else {
+ assert(0);
+/* emit_fstp_reg(cd, rd->savfltregs[i] + fpu_st_offset); */
}
-#endif
-
-#if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
-# if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
- if (opt_lsra) {
-# endif
-# if defined(ENABLE_SSA)
- if (ls != NULL) {
- last_cmd_was_goto = false;
-# endif
- if (len > 0) {
- len--;
- var = VAR(bptr->invars[len]);
- if (bptr->type != BBTYPE_STD) {
- if (!IS_2_WORD_TYPE(var->type)) {
-#if !defined(ENABLE_SSA)
- 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);
- }
-#endif
- }
- else {
- log_text("copy interface registers(EXH, SBR): longs \
- have to be in memory (begin 1)");
- assert(0);
- }
- }
- }
-
- }
- else
-#endif /* defined(ENABLE_LSRA) || defined(ENABLE_SSA) */
- {
- while (len) {
- len--;
- var = VAR(bptr->invars[len]);
- if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
- if (!IS_2_WORD_TYPE(var->type)) {
- 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 {
- log_text("copy interface registers: longs have to be in \
- memory (begin 1)");
- assert(0);
- }
-
- }
- else {
- assert((var->flags & INOUT));
- }
- } /* while (len) */
- } /* */
-
- /* walk through all instructions */
-
- len = bptr->icount;
- currentline = 0;
-
- for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
- if (iptr->line != currentline) {
- linenumbertable_list_entry_add(cd, iptr->line);
- currentline = iptr->line;
- }
-
- MCODECHECK(1024); /* 1kB should be enough */
-
- switch (iptr->opc) {
- case ICMD_NOP: /* ... ==> ... */
- case ICMD_POP: /* ..., value ==> ... */
- case ICMD_POP2: /* ..., value, value ==> ... */
- break;
-
- case ICMD_INLINE_START:
-
- REPLACEMENT_POINT_INLINE_START(cd, iptr);
- break;
-
- case ICMD_INLINE_BODY:
+ }
- REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
- linenumbertable_list_entry_add_inline_start(cd, iptr);
- linenumbertable_list_entry_add(cd, iptr->line);
- break;
+ /* deallocate stack */
- case ICMD_INLINE_END:
+ if (cd->stackframesize)
+ M_AADD_IMM(cd->stackframesize * 8 + 4, REG_SP);
- linenumbertable_list_entry_add_inline_end(cd, iptr);
- linenumbertable_list_entry_add(cd, iptr->line);
- break;
+ M_RET;
+}
- case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- emit_nullpointer_check(cd, iptr, s1);
- break;
+/**
+ * Generates machine code for one ICMD.
+ */
+void codegen_emit_instruction(jitdata* jd, instruction* iptr)
+{
+ varinfo* var;
+ varinfo* var1;
+ builtintable_entry* bte;
+ methodinfo* lm; // Local methodinfo for ICMD_INVOKE*.
+ unresolved_method* um;
+ fieldinfo* fi;
+ unresolved_field* uf;
+ 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_ITMP12_PACKED);
- 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);
break;
- /* load/store/copy/move operations ************************************/
-
- case ICMD_ILOAD:
- case ICMD_ALOAD:
- case ICMD_LLOAD:
- case ICMD_FLOAD:
- case ICMD_DLOAD:
- case ICMD_ISTORE:
- case ICMD_LSTORE:
- case ICMD_FSTORE:
- case ICMD_DSTORE:
- case ICMD_COPY:
- case ICMD_MOVE:
-
- emit_copy(jd, iptr);
- break;
-
- case ICMD_ASTORE:
- if (!(iptr->flags.bits & INS_FLAG_RETADDR))
- emit_copy(jd, iptr);
- break;
-
-
/* integer operations *************************************************/
case ICMD_INEG: /* ..., value ==> ..., - value */
emit_arithmetic_check(cd, iptr, REG_ITMP3);
bte = iptr->sx.s23.s3.bte;
- md = bte->md;
M_LST(s2, REG_SP, 2 * 4);
/* memory operations **************************************************/
- case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., length */
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
- /* implicit null-pointer check */
- M_ILD(d, s1, OFFSET(java_array_t, size));
- emit_store_dst(jd, iptr, d);
- break;
-
case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_INTMOVE(s1, REG_ITMP1_XPTR);
-
-#ifdef ENABLE_VERIFIER
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- patcher_add_patch_ref(jd, PATCHER_resolve_class,
- iptr->sx.s23.s2.uc, 0);
- }
-#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: /* ... ==> ... */
-
-#if defined(ENABLE_SSA)
- if ( ls != NULL ) {
- last_cmd_was_goto = true;
-
- /* In case of a Goto phimoves have to be inserted before the */
- /* jump */
-
- codegen_emit_phi_moves(jd, bptr);
- }
-#endif
- emit_br(cd, iptr->dst.block);
- ALIGNCODENOP;
- break;
-
- case ICMD_JSR: /* ... ==> ... */
-
- emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
- ALIGNCODENOP;
- break;
-
- case ICMD_IFNULL: /* ..., value ==> ... */
- case ICMD_IFNONNULL:
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_TEST(s1);
- emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
- break;
-
- case ICMD_IFEQ: /* ..., value ==> ... */
- case ICMD_IFLT:
- case ICMD_IFLE:
- case ICMD_IFNE:
- case ICMD_IFGT:
- case ICMD_IFGE:
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- M_CMP_IMM(iptr->sx.val.i, s1);
- emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
- break;
-
case ICMD_IF_LEQ: /* ..., value ==> ... */
s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
}
break;
- case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
- case ICMD_IF_ICMPNE:
- case ICMD_IF_ICMPLT:
- case ICMD_IF_ICMPGT:
- case ICMD_IF_ICMPGE:
- case ICMD_IF_ICMPLE:
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_CMP(s2, s1);
- emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
- break;
-
- case ICMD_IF_ACMPEQ: /* ..., value, value ==> ... */
- case ICMD_IF_ACMPNE:
-
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
- s2 = emit_load_s2(jd, iptr, REG_ITMP2);
- M_CMP(s2, s1);
- emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
- break;
-
case ICMD_IF_LCMPEQ: /* ..., value, value ==> ... */
s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
emit_buge(cd, iptr->dst.block);
break;
-
- case ICMD_IRETURN: /* ..., retvalue ==> ... */
-
- REPLACEMENT_POINT_RETURN(cd, iptr);
- s1 = emit_load_s1(jd, iptr, REG_RESULT);
- M_INTMOVE(s1, REG_RESULT);
- goto nowperformreturn;
-
- case ICMD_LRETURN: /* ..., retvalue ==> ... */
-
- REPLACEMENT_POINT_RETURN(cd, iptr);
- s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
- M_LNGMOVE(s1, REG_RESULT_PACKED);
- goto nowperformreturn;
-
- case ICMD_ARETURN: /* ..., retvalue ==> ... */
-
- REPLACEMENT_POINT_RETURN(cd, iptr);
- s1 = emit_load_s1(jd, iptr, REG_RESULT);
- M_INTMOVE(s1, REG_RESULT);
-
-#ifdef ENABLE_VERIFIER
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- patcher_add_patch_ref(jd, PATCHER_resolve_class,
- iptr->sx.s23.s2.uc, 0);
- }
-#endif /* ENABLE_VERIFIER */
- goto nowperformreturn;
-
- case ICMD_FRETURN: /* ..., retvalue ==> ... */
- case ICMD_DRETURN:
-
- REPLACEMENT_POINT_RETURN(cd, iptr);
- s1 = emit_load_s1(jd, iptr, REG_FRESULT);
- goto nowperformreturn;
-
- case ICMD_RETURN: /* ... ==> ... */
-
- REPLACEMENT_POINT_RETURN(cd, iptr);
-
-nowperformreturn:
- {
- s4 i, p;
-
- p = cd->stackframesize;
-
-#if !defined(NDEBUG)
- emit_verbosecall_exit(jd);
-#endif
-
-#if defined(ENABLE_THREADS)
- if (checksync && code_is_synchronized(code)) {
- M_ALD(REG_ITMP2, REG_SP, rd->memuse * 8);
-
- /* we need to save the proper return value */
- switch (iptr->opc) {
- case ICMD_IRETURN:
- case ICMD_ARETURN:
- M_IST(REG_RESULT, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_LRETURN:
- M_LST(REG_RESULT_PACKED, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_FRETURN:
- emit_fstps_membase(cd, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_DRETURN:
- emit_fstpl_membase(cd, REG_SP, rd->memuse * 8);
- break;
- }
-
- M_AST(REG_ITMP2, REG_SP, 0);
- M_MOV_IMM(LOCK_monitor_exit, REG_ITMP3);
- M_CALL(REG_ITMP3);
-
- /* and now restore the proper return value */
- switch (iptr->opc) {
- case ICMD_IRETURN:
- case ICMD_ARETURN:
- M_ILD(REG_RESULT, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_LRETURN:
- M_LLD(REG_RESULT_PACKED, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_FRETURN:
- emit_flds_membase(cd, REG_SP, rd->memuse * 8);
- break;
-
- case ICMD_DRETURN:
- emit_fldl_membase(cd, REG_SP, rd->memuse * 8);
- break;
- }
- }
-#endif
-
- /* restore saved registers */
-
- for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
- p--; M_ALD(rd->savintregs[i], REG_SP, p * 8);
- }
-
- for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
- p--;
- emit_fldl_membase(cd, REG_SP, p * 8);
- if (iptr->opc == ICMD_FRETURN || iptr->opc == ICMD_DRETURN) {
- assert(0);
-/* emit_fstp_reg(cd, rd->savfltregs[i] + fpu_st_offset + 1); */
- } else {
- assert(0);
-/* emit_fstp_reg(cd, rd->savfltregs[i] + fpu_st_offset); */
- }
- }
-
- /* deallocate stack */
-
- if (cd->stackframesize)
- M_AADD_IMM(cd->stackframesize * 8 + 4, REG_SP);
-
- M_RET;
- }
- break;
-
-
case ICMD_TABLESWITCH: /* ..., index ==> ... */
{
s4 i, l;
}
break;
-
- case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
- {
- s4 i;
- lookup_target_t *lookup;
-
- lookup = iptr->dst.lookup;
-
- i = iptr->sx.s23.s2.lookupcount;
-
- MCODECHECK((i<<2)+8);
- s1 = emit_load_s1(jd, iptr, REG_ITMP1);
-
- while (--i >= 0) {
- M_CMP_IMM(lookup->value, s1);
- emit_beq(cd, lookup->target.block);
- lookup++;
- }
-
- emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
- ALIGNCODENOP;
+ case ICMD_BUILTIN:
+ bte = iptr->sx.s23.s3.bte;
+ if (bte->stub == NULL) {
+ M_MOV_IMM(bte->fp, REG_ITMP1);
}
- break;
-
- case ICMD_BUILTIN: /* ..., [arg1, [arg2 ...]] ==> ... */
-
- REPLACEMENT_POINT_FORGC_BUILTIN(cd, iptr);
+ else {
+ M_MOV_IMM(bte->stub, REG_ITMP1);
+ }
+ M_CALL(REG_ITMP1);
- bte = iptr->sx.s23.s3.bte;
- md = bte->md;
-
-#if defined(ENABLE_ESCAPE_REASON)
- if (bte->fp == BUILTIN_escape_reason_new) {
- void set_escape_reasons(void *);
- M_ASUB_IMM(8, REG_SP);
- M_MOV_IMM(iptr->escape_reasons, REG_ITMP1);
- M_AST(EDX, REG_SP, 4);
- M_AST(REG_ITMP1, REG_SP, 0);
- M_MOV_IMM(set_escape_reasons, REG_ITMP1);
- M_CALL(REG_ITMP1);
- M_ALD(EDX, REG_SP, 4);
- M_AADD_IMM(8, REG_SP);
+#if defined(ENABLE_ESCAPE_CHECK)
+ if (bte->opcode == ICMD_NEW || bte->opcode == ICMD_NEWARRAY) {
+ /*emit_escape_annotate_object(cd, m);*/
}
#endif
+ break;
- goto gen_method;
-
- case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
+ case ICMD_INVOKESPECIAL:
+ M_ALD(REG_ITMP1, REG_SP, 0 * 8);
+ emit_nullpointer_check(cd, iptr, REG_ITMP1);
+ /* fall through */
- case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
- case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
- case ICMD_INVOKEINTERFACE:
+ case ICMD_INVOKESTATIC:
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
- REPLACEMENT_POINT_INVOKE(cd, iptr);
+ patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
+ um, 0);
- if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
- lm = NULL;
+ disp = 0;
}
else {
lm = iptr->sx.s23.s3.fmiref->p.method;
- md = lm->parseddesc;
+ disp = (ptrint) lm->stubroutine;
}
-gen_method:
- s3 = md->paramcount;
-
- MCODECHECK((s3 << 1) + 64);
-
- /* 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) {
- log_text("No integer argument registers available!");
- assert(0);
-
- } else {
- if (IS_2_WORD_TYPE(var->type)) {
- d = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
- M_LST(d, REG_SP, md->params[s3].regoff);
- } else {
- d = emit_load(jd, iptr, var, REG_ITMP1);
- M_IST(d, REG_SP, md->params[s3].regoff);
- }
- }
-
- } else {
- if (!md->params[s3].inmemory) {
- s1 = 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);
- else
- M_FST(d, REG_SP, md->params[s3].regoff);
- }
- }
- } /* end of for */
-
- switch (iptr->opc) {
- case ICMD_BUILTIN:
- d = md->returntype.type;
-
- if (bte->stub == NULL) {
- M_MOV_IMM(bte->fp, REG_ITMP1);
- }
- else {
- M_MOV_IMM(bte->stub, REG_ITMP1);
- }
- M_CALL(REG_ITMP1);
-
-#if defined(ENABLE_ESCAPE_CHECK)
- if (bte->opcode == ICMD_NEW || bte->opcode == ICMD_NEWARRAY) {
- /*emit_escape_annotate_object(cd, m);*/
- }
-#endif
- break;
-
- case ICMD_INVOKESPECIAL:
- M_ALD(REG_ITMP1, REG_SP, 0 * 8);
- emit_nullpointer_check(cd, iptr, REG_ITMP1);
- /* fall through */
-
- case ICMD_INVOKESTATIC:
- if (lm == NULL) {
- unresolved_method *um = iptr->sx.s23.s3.um;
-
- patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
- um, 0);
-
- disp = 0;
- d = md->returntype.type;
- }
- else {
- disp = (ptrint) lm->stubroutine;
- d = lm->parseddesc->returntype.type;
- }
-
- M_MOV_IMM2(disp, REG_ITMP2);
- M_CALL(REG_ITMP2);
- break;
-
- case ICMD_INVOKEVIRTUAL:
- M_ALD(REG_ITMP1, REG_SP, 0 * 8);
- emit_nullpointer_check(cd, iptr, s1);
-
- if (lm == NULL) {
- unresolved_method *um = iptr->sx.s23.s3.um;
-
- patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
+ M_MOV_IMM2(disp, REG_ITMP2);
+ M_CALL(REG_ITMP2);
+ break;
- s1 = 0;
- d = md->returntype.type;
- }
- else {
- s1 = OFFSET(vftbl_t, table[0]) +
- sizeof(methodptr) * lm->vftblindex;
- d = md->returntype.type;
- }
+ case ICMD_INVOKEVIRTUAL:
+ M_ALD(REG_ITMP1, REG_SP, 0 * 8);
+ emit_nullpointer_check(cd, iptr, s1);
- M_ALD(REG_METHODPTR, REG_ITMP1,
- OFFSET(java_object_t, vftbl));
- M_ALD32(REG_ITMP3, REG_METHODPTR, s1);
- M_CALL(REG_ITMP3);
- break;
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
- case ICMD_INVOKEINTERFACE:
- M_ALD(REG_ITMP1, REG_SP, 0 * 8);
- emit_nullpointer_check(cd, iptr, s1);
+ patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
- if (lm == NULL) {
- unresolved_method *um = iptr->sx.s23.s3.um;
+ s1 = 0;
+ }
+ else {
+ lm = iptr->sx.s23.s3.fmiref->p.method;
+ s1 = OFFSET(vftbl_t, table[0]) +
+ sizeof(methodptr) * lm->vftblindex;
+ }
- patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
+ M_ALD(REG_METHODPTR, REG_ITMP1,
+ OFFSET(java_object_t, vftbl));
+ M_ALD32(REG_ITMP3, REG_METHODPTR, s1);
+ M_CALL(REG_ITMP3);
+ break;
- s1 = 0;
- s2 = 0;
- d = md->returntype.type;
- }
- else {
- s1 = OFFSET(vftbl_t, interfacetable[0]) -
- sizeof(methodptr) * lm->clazz->index;
+ case ICMD_INVOKEINTERFACE:
+ M_ALD(REG_ITMP1, REG_SP, 0 * 8);
+ emit_nullpointer_check(cd, iptr, s1);
- s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
+ if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
+ um = iptr->sx.s23.s3.um;
- d = md->returntype.type;
- }
+ patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
- M_ALD(REG_METHODPTR, REG_ITMP1,
- OFFSET(java_object_t, vftbl));
- M_ALD32(REG_METHODPTR, REG_METHODPTR, s1);
- M_ALD32(REG_ITMP3, REG_METHODPTR, s2);
- M_CALL(REG_ITMP3);
- break;
+ s1 = 0;
+ s2 = 0;
}
+ else {
+ lm = iptr->sx.s23.s3.fmiref->p.method;
+ s1 = OFFSET(vftbl_t, interfacetable[0]) -
+ sizeof(methodptr) * lm->clazz->index;
- /* store size of call code in replacement point */
-
- REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
- REPLACEMENT_POINT_FORGC_BUILTIN_RETURN(cd, iptr);
-
- /* d contains return type */
-
- if (d != TYPE_VOID) {
-#if defined(ENABLE_SSA)
- if ((ls == NULL) /* || (!IS_TEMPVAR_INDEX(iptr->dst.varindex)) */ ||
- (ls->lifetime[iptr->dst.varindex].type != UNUSED))
- /* a "living" stackslot */
-#endif
- {
- if (IS_INT_LNG_TYPE(d)) {
- if (IS_2_WORD_TYPE(d)) {
- s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
- M_LNGMOVE(REG_RESULT_PACKED, s1);
- }
- else {
- s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
- M_INTMOVE(REG_RESULT, s1);
- }
- }
- else {
- s1 = codegen_reg_of_dst(jd, iptr, REG_NULL);
- }
- emit_store_dst(jd, iptr, s1);
- }
+ s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
}
- break;
+ M_ALD(REG_METHODPTR, REG_ITMP1,
+ 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 */
emit_store_dst(jd, iptr, s1);
break;
-#if defined(ENABLE_SSA)
- case ICMD_GETEXCEPTION:
- d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
- M_INTMOVE(REG_ITMP1, d);
- emit_store_dst(jd, iptr, d);
- break;
-#endif
default:
- exceptions_throw_internalerror("Unknown ICMD %d during code generation",
- iptr->opc);
- return false;
+ vm_abort("Unknown ICMD %d during code generation", iptr->opc);
} /* switch */
-
- } /* for instruction */
-
- MCODECHECK(64);
-
-#if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
- if (!opt_lsra)
-#endif
-#if defined(ENABLE_SSA)
- if ( ls != NULL ) {
-
- /* by edge splitting, in Blocks with phi moves there can only */
- /* be a goto as last command, no other Jump/Branch Command */
-
- if (!last_cmd_was_goto)
- codegen_emit_phi_moves(jd, bptr);
- }
-
-#endif
-
- /* 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 */
-
- /* generate stubs */
-
- emit_patcher_traps(jd);
-
- /* everything's ok */
-
- return true;
}
/* create method header */
(void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
- (void) dseg_add_unique_s4(cd, cd->stackframesize * 8 + 4); /* FrameSize */
+ (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 */
projects / cacao.git / blobdiff