/* src/vm/jit/s390/codegen.c - machine code generator for s390
- 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
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
#include <stdint.h>
#include <stdio.h>
-#include "native/jni.h"
-#include "native/localref.h"
-#include "native/native.h"
+#include "vm/jit/s390/arch.h"
+#include "vm/jit/s390/codegen.h"
+#include "vm/jit/s390/emit.h"
+#include "vm/jit/s390/md-abi.h"
+
+#include "native/localref.hpp"
+#include "native/native.hpp"
#include "mm/memory.h"
-#if defined(ENABLE_THREADS)
-# include "threads/lock-common.h"
-# include "threads/native/lock.h"
-#endif
+#include "threads/lock.hpp"
-#include "vmcore/loader.h"
-#include "vmcore/options.h"
-#include "vmcore/statistics.h"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/jit/builtin.hpp"
+#include "vm/exceptions.hpp"
#include "vm/global.h"
+#include "vm/loader.hpp"
+#include "vm/options.h"
+#include "vm/statistics.h"
+#include "vm/types.h"
+#include "vm/vm.hpp"
+
#include "vm/jit/abi.h"
#if defined(ENABLE_LSRA)
# include "vm/jit/allocator/lsra.h"
#endif
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
+#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-common.h"
+#include "vm/jit/patcher-common.hpp"
#include "vm/jit/reg.h"
-#include "vm/jit/replace.h"
-#include "vm/jit/s390/arch.h"
-#include "vm/jit/s390/codegen.h"
-#include "vm/jit/s390/emit.h"
-#include "vm/jit/s390/md-abi.h"
-#include "vm/jit/stacktrace.h"
-#include "vm/types.h"
-#include "vm/stringlocal.h"
-#include "vm/vm.h"
+#include "vm/jit/replace.hpp"
+#include "vm/jit/stacktrace.hpp"
+#include "vm/jit/trap.h"
+
/* DO__LOG generates a call to do__log. No registers are destroyed,
* so you may use it anywhere. regs is an array containing all general
* purpose registers.
*/
+/*
static void do__log(u4 *regs) {
- /* insert stuff here */
}
+*/
#define DO__LOG \
N_AHI(REG_SP, -200); \
N_LM(R0, R15, 96, REG_SP); \
N_AHI(REG_SP, 200);
-#define SUPPORT_HERCULES 1
+/* If the following macro is defined, workaround code for hercules quirks
+ * is generated
+ */
+
+/* #define SUPPORT_HERCULES 1 */
/* codegen *********************************************************************
registerdata *rd;
s4 len, s1, s2, s3, d, dd, disp;
u2 currentline;
- ptrint a;
- varinfo *var, *var1, *var2, *dst;
+ varinfo *var;
basicblock *bptr;
instruction *iptr;
- exception_entry *ex;
constant_classref *cr;
unresolved_class *uc;
methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
not be shared with place to save the return register
since both values reside in R2. */
- if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+ if (checksync && code_is_synchronized(code)) {
/* 1 slot space to save argument of monitor_enter */
/* 1 slot to temporary store return value before monitor_exit */
cd->stackframesize += 2;
native code e.g. libc or jni (alignment problems with
movaps). */
- if (!jd->isleafmethod || opt_verbosecall )
+ if (!code_is_leafmethod(code) || opt_verbosecall )
/* TODO really 16 bytes ? */
cd->stackframesize = (cd->stackframesize + 2) & ~2;
(void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
(void) dseg_add_unique_s4(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_add_unique_s4(cd, (rd->memuse + 1) * 8); /* IsSync */
+ 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);
else
-#endif
- (void) dseg_add_unique_s4(cd, 0); /* IsSync */
+ (void) dseg_add_unique_s4(cd, 0);
- (void) dseg_add_unique_s4(cd, jd->isleafmethod); /* 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 */
- (void) dseg_addlinenumbertablesize(cd);
-
- (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize */
-
- /* create exception table */
-
- for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
- dseg_add_target(cd, ex->start);
- dseg_add_target(cd, ex->end);
- dseg_add_target(cd, ex->handler);
- (void) dseg_add_unique_address(cd, ex->catchtype.any);
- }
-
/* Offset PV */
M_AADD_IMM(N_PV_OFFSET, REG_PV);
/* save monitorenter argument */
#if defined(ENABLE_THREADS)
- if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+ if (checksync && code_is_synchronized(code)) {
/* stack offset for monitor argument */
s1 = rd->memuse;
/* decide which monitor enter function to call */
if (m->flags & ACC_STATIC) {
- disp = dseg_add_address(cd, &m->class->object.header);
+ 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(EXCEPTION_HARDWARE_NULLPOINTER);
+ M_ILL(TRAP_NullPointerException);
}
disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
if (iptr->line != currentline) {
- dseg_addlinenumber(cd, iptr->line);
+ linenumbertable_list_entry_add(cd, iptr->line);
currentline = iptr->line;
}
case ICMD_INLINE_BODY:
REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
- dseg_addlinenumber_inline_start(cd, iptr);
- dseg_addlinenumber(cd, iptr->line);
+ linenumbertable_list_entry_add_inline_start(cd, iptr);
+ linenumbertable_list_entry_add(cd, iptr->line);
break;
case ICMD_INLINE_END:
- dseg_addlinenumber_inline_end(cd, iptr);
- dseg_addlinenumber(cd, iptr->line);
+ linenumbertable_list_entry_add_inline_end(cd, iptr);
+ linenumbertable_list_entry_add(cd, iptr->line);
break;
case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
case ICMD_F2D: /* ..., value ==> ..., (double) value */
{
+#ifdef SUPPORT_HERCULES
u1 *ref;
+#endif
s1 = emit_load_s1(jd, iptr, REG_FTMP1);
d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
#ifdef SUPPORT_HERCULES
N_L(
GET_LOW_REG(d) /* maybe itmp3 */,
- OFFSET(java_intarray_t, data[0]) + 4,
+ OFFSET(java_longarray_t, data[0]) + 4,
REG_ITMP2, s1 /* maybe itmp1 */
);
N_L(
GET_HIGH_REG(d) /* maybe itmp1 */,
- OFFSET(java_intarray_t, data[0]),
+ OFFSET(java_longarray_t, data[0]),
REG_ITMP2, s1 /* maybe itmp1 */
);
M_INTMOVE(s2, REG_ITMP2);
M_SLL_IMM(3, REG_ITMP2); /* scale index by 8 */
- N_LD(d, OFFSET(java_floatarray_t, data[0]), REG_ITMP2, s1);
+ N_LD(d, OFFSET(java_doublearray_t, data[0]), REG_ITMP2, s1);
emit_store_dst(jd, iptr, d);
break;
M_SLL_IMM(3, REG_ITMP2);
s3 = emit_load_s3_high(jd, iptr, REG_ITMP3);
- N_ST(s3, OFFSET(java_intarray_t, data[0]), REG_ITMP2, s1);
+ N_ST(s3, OFFSET(java_longarray_t, data[0]), REG_ITMP2, s1);
s3 = emit_load_s3_low(jd, iptr, REG_ITMP3);
- N_ST(s3, OFFSET(java_intarray_t, data[0]) + 4, REG_ITMP2, s1);
+ N_ST(s3, OFFSET(java_longarray_t, data[0]) + 4, REG_ITMP2, s1);
break;
case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
fieldtype = fi->type;
disp = dseg_add_address(cd, fi->value);
- if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
+ if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
PROFILE_CYCLE_STOP;
- patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->class, 0);
+ patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->clazz, 0);
PROFILE_CYCLE_START;
}
fieldtype = fi->type;
disp = dseg_add_address(cd, fi->value);
- if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
+ if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
PROFILE_CYCLE_STOP;
- patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->class, disp);
+ patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->clazz, disp);
PROFILE_CYCLE_START;
}
}
}
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- ((patchref_t *)list_first_unsynced(jd->code->patchers))->disp = (cd->mcodeptr - ref);
+ ((patchref_t *)list_first(jd->code->patchers))->disp = (cd->mcodeptr - ref);
}
switch (fieldtype) {
assert(0);
}
-
if (out_ref != NULL) {
- *(u4 *)out_ref |= (u4)(cd->mcodeptr - out_ref) / 2;
+ N_BRC_BACK_PATCH(out_ref);
}
}
#endif /* !defined(NDEBUG) */
#if defined(ENABLE_THREADS)
- if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+ if (checksync && code_is_synchronized(code)) {
/* we need to save the proper return value */
switch (iptr->opc) {
switch (iptr->opc) {
case ICMD_BUILTIN:
- disp = dseg_add_functionptr(cd, bte->fp);
+ if (bte->stub == NULL) {
+ disp = dseg_add_functionptr(cd, bte->fp);
+ M_ASUB_IMM(96, REG_SP); /* register save area as required by C abi */
+ } else {
+ disp = dseg_add_functionptr(cd, bte->stub);
+ }
- M_ASUB_IMM(96, REG_SP); /* register save area as required by C abi */
if (N_VALID_DSEG_DISP(disp)) {
N_L(REG_PV, N_DSEG_DISP(disp), RN, REG_PV);
} else {
}
else {
s1 = OFFSET(vftbl_t, interfacetable[0]) -
- sizeof(methodptr*) * lm->class->index;
+ sizeof(methodptr*) * lm->clazz->index;
- s2 = sizeof(methodptr) * (lm - lm->class->methods);
+ s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
}
/* Implicit null-pointer check */
switch (iptr->opc) {
case ICMD_BUILTIN:
- M_AADD_IMM(96, REG_SP); /* remove C abi register save area */
- emit_exception_check(cd, iptr); /* check for exception */
+ if (bte->stub == NULL) {
+ M_AADD_IMM(96, REG_SP); /* remove C abi register save area */
+ }
break;
}
supervftbl = super->vftbl;
}
- if ((super == NULL) || !(super->flags & ACC_INTERFACE))
- CODEGEN_CRITICAL_SECTION_NEW;
-
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
/* if class is not resolved, check which code to call */
}
#if 1
- CODEGEN_CRITICAL_SECTION_START;
-
/* REG_ITMP3 := baseval(s1) */
M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
M_ALD_DSEG(REG_ITMP2, disp);
M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
- CODEGEN_CRITICAL_SECTION_END;
-
M_CMPU(REG_ITMP3, REG_ITMP2); /* Unsigned compare */
/* M_CMPULE(REG_ITMP2, REG_ITMP3, REG_ITMP3); itmp3 = (itmp2 <= itmp3) */
M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
M_ALD_DSEG(REG_ITMP3, disp);
- CODEGEN_CRITICAL_SECTION_START;
-
M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
M_ISUB(REG_ITMP3, REG_ITMP2);
M_ALD_DSEG(REG_ITMP3, disp);
M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
- CODEGEN_CRITICAL_SECTION_END;
-
M_CMPU(REG_ITMP2, REG_ITMP3); /* Unsigned compare */
/* M_CMPULE(REG_ITMP2, REG_ITMP3, REG_ITMP3); itmp3 = (itmp2 <= itmp3) */
/* M_BEQZ(REG_ITMP3, 0); branch if (! itmp) -> branch if > */
# define LABEL_EXIT_INTERFACE_DONE BRANCH_LABEL_5
# define LABEL_EXIT_CLASS_NULL BRANCH_LABEL_6
- if ((super == NULL) || !(super->flags & ACC_INTERFACE))
- CODEGEN_CRITICAL_SECTION_NEW;
-
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
if (s1 == d) {
M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
M_ALD_DSEG(REG_ITMP2, disp);
- CODEGEN_CRITICAL_SECTION_START;
-
M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
- CODEGEN_CRITICAL_SECTION_END;
-
M_ISUB(REG_ITMP3, REG_ITMP1); /* itmp1 := itmp1 (sub.baseval) - itmp3 (super.baseval) */
M_CMPU(REG_ITMP1, REG_ITMP2); /* d := (uint)REG_ITMP1 <= (uint)REG_ITMP2 */
} /* if (bptr -> flags >= BBREACHED) */
} /* for basic block */
- dseg_createlinenumbertable(cd);
-
/* generate stubs */
emit_patcher_traps(jd);
return true;
}
-
-/* codegen_emit_stub_compiler **************************************************
-
- Emits a stub routine which calls the compiler.
-
-*******************************************************************************/
-
-void codegen_emit_stub_compiler(jitdata *jd)
-{
- methodinfo *m;
- codegendata *cd;
-
- /* get required compiler data */
-
- m = jd->m;
- cd = jd->cd;
-
- /* code for the stub */
-
- /* don't touch ITMP2 as it cointains the return address */
-
- M_AADD_IMM(N_PV_OFFSET, REG_PV); /* suppress negative displacements */
-
- /* REG_METHODPTR (REG_ITMP1) already used */
- M_ILD_DSEG(REG_ITMP3, -2 * SIZEOF_VOID_P); /* methodinfo */
- M_ILD_DSEG(REG_PV, -3 * SIZEOF_VOID_P); /* compiler pointer */
- N_BR(REG_PV);
-}
-
-
/* codegen_emit_stub_native ****************************************************
Emits a stub routine which calls a native method.
SP after method entry
*/
-void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
+void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
{
- methodinfo *m;
- codeinfo *code;
- codegendata *cd;
- registerdata *rd;
- methoddesc *md;
- s4 nativeparams;
- s4 i, j; /* count variables */
- s4 t;
- s4 s1, s2;
- s4 disp;
+ methodinfo *m;
+ codeinfo *code;
+ codegendata *cd;
+ methoddesc *md;
+ int i, j;
+ int t;
+ int s1, s2;
+ int disp;
/* get required compiler data */
m = jd->m;
code = jd->code;
cd = jd->cd;
- rd = jd->rd;
- /* initialize variables */
+ /* set some variables */
md = m->parseddesc;
- nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
- /* calculate stack frame size */
+ /* calculate stackframe size */
+
+ cd->stackframesize =
+ 1 + /* return address */
+ sizeof(stackframeinfo_t) / 8 +
+ sizeof(localref_table) / 8 +
+ nmd->paramcount +
+ nmd->memuse +
+ (96 / 8); /* linkage area */
+
+ /* keep stack 8-byte aligned */
- cd->stackframesize =
- 1 + /* r14 - return address */ +
- ((sizeof(stackframeinfo) + 7) / 8) +
- ((sizeof(localref_table) + 7) / 8) +
- 1 + /* itmp3 */
- (INT_ARG_CNT + FLT_ARG_CNT) +
- nmd->memuse + /* parameter passing */
- (96 / 8) /* required by ABI */;
+ /*ALIGN_2(cd->stackframesize);*/
/* create method header */
(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); /* IsSync */
(void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
(void) dseg_add_unique_s4(cd, 0); /* IntSave */
(void) dseg_add_unique_s4(cd, 0); /* FltSave */
- (void) dseg_addlinenumbertablesize(cd);
- (void) dseg_add_unique_s4(cd, 0); /* ExTableSize */
- /* generate stub code */
+ /* generate code */
M_ASUB_IMM(cd->stackframesize * 8, REG_SP);
M_AADD_IMM(N_PV_OFFSET, REG_PV);
- /* save return address */
+ /* store return address */
M_AST(REG_RA, REG_SP, (cd->stackframesize - 1) * 8);
- /* generate native method profiling code */
+#if defined(ENABLE_GC_CACAO)
+ /* Save callee saved integer registers in stackframeinfo (GC may
+ need to recover them during a collection). */
-#if defined(ENABLE_PROFILING)
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
- /* count frequency */
- 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
+ disp = cd->stackframesize * 8 - sizeof(stackframeinfo_t) +
+ OFFSET(stackframeinfo_t, intregs);
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_enter(jd);
+ for (i = 0; i < INT_SAV_CNT; i++)
+ M_AST(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
#endif
- /* get function address (this must happen before the stackframeinfo) */
-
- disp = dseg_add_functionptr(cd, f);
-
- if (f == NULL)
- patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, disp);
-
- M_ALD_DSEG(REG_ITMP1, disp);
-
- j = 96 + (nmd->memuse * 8);
-
- /* todo some arg registers are not volatile in C-abi terms */
-
/* save integer and float argument registers */
for (i = 0; i < md->paramcount; i++) {
- if (! md->params[i].inmemory) {
+ if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
- t = md->paramtypes[i].type;
- if (IS_INT_LNG_TYPE(t)) {
- if (IS_2_WORD_TYPE(t)) {
- M_LST(s1, REG_SP, j);
- } else {
- M_IST(s1, REG_SP, j);
- }
- } else {
- if (IS_2_WORD_TYPE(t)) {
- M_DST(s1, REG_SP, j);
- } else {
- M_FST(s1, REG_SP, j);
- }
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(s1, REG_SP, 96 + i * 8);
+ break;
+ case TYPE_LNG:
+ M_LST(s1, REG_SP, 96 + i * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(s1, REG_SP, 96 + i * 8);
+ break;
}
-
- j += 8;
}
}
- M_AST(REG_ITMP1, REG_SP, j);
-
- /* create dynamic stack info */
-
- M_MOV(REG_SP, REG_A0); /* currentsp */
- M_LDA(REG_A1, REG_PV, -N_PV_OFFSET); /* pv */
+ /* create native stack info */
+ M_MOV(REG_SP, REG_A0);
+ M_LDA(REG_A1, REG_PV, -N_PV_OFFSET);
disp = dseg_add_functionptr(cd, codegen_start_native_call);
- M_ALD_DSEG(REG_ITMP1, disp);
-
- M_CALL(REG_ITMP1); /* call */
+ M_ALD_DSEG(REG_ITMP2, disp);
+ M_CALL(REG_ITMP2);
/* remember class argument */
- if (m->flags & ACC_STATIC) {
+ if (m->flags & ACC_STATIC)
M_MOV(REG_RESULT, REG_ITMP3);
- }
/* restore integer and float argument registers */
- j = 96 + (nmd->memuse * 8);
-
for (i = 0; i < md->paramcount; i++) {
- if (! md->params[i].inmemory) {
+ if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
- t = md->paramtypes[i].type;
- if (IS_INT_LNG_TYPE(t)) {
- if (IS_2_WORD_TYPE(t)) {
- M_LLD(s1, REG_SP, j);
- } else {
- M_ILD(s1, REG_SP, j);
- }
- } else {
- if (IS_2_WORD_TYPE(t)) {
- M_DLD(s1, REG_SP, j);
- } else {
- M_FLD(s1, REG_SP, j);
- }
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(s1, REG_SP, 96 + i * 8);
+ break;
+ case TYPE_LNG:
+ M_LLD(s1, REG_SP, 96 + i * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(s1, REG_SP, 96 + i * 8);
+ break;
}
-
- j += 8;
}
}
- M_ALD(REG_ITMP1, REG_SP, j);
-
/* copy or spill arguments to new locations */
- for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
+ for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
t = md->paramtypes[i].type;
if (IS_INT_LNG_TYPE(t)) {
-
- if (! md->params[i].inmemory) {
-
+ if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
+ s2 = nmd->params[j].regoff;
- if (! nmd->params[j].inmemory) {
- s2 = nmd->params[j].regoff;
- if (IS_2_WORD_TYPE(t)) {
+ if (!nmd->params[j].inmemory) {
+ if (IS_2_WORD_TYPE(t))
M_LNGMOVE(s1, s2);
- } else {
- M_MOV(s1, s2);
- }
- } else {
- s2 = nmd->params[j].regoff;
- if (IS_2_WORD_TYPE(t)) {
- M_LST(s1, REG_SP, 96 + s2);
- } else {
- M_IST(s1, REG_SP, 96 + s2);
- }
+ else
+ M_INTMOVE(s1, s2);
}
-
- } else {
- s1 = cd->stackframesize * 8 + md->params[i].regoff;
+ else {
+ if (IS_2_WORD_TYPE(t))
+ M_LST(s1, REG_SP, s2);
+ else
+ M_IST(s1, REG_SP, s2);
+ }
+ }
+ else {
+ s1 = md->params[i].regoff + cd->stackframesize * 8;
s2 = nmd->params[j].regoff;
-
+
if (IS_2_WORD_TYPE(t)) {
- N_MVC(96 + s2, 8, REG_SP, s1, REG_SP);
+ N_MVC(s2, 8, REG_SP, s1, REG_SP);
} else {
- N_MVC(96 + s2, 4, REG_SP, s1, REG_SP);
+ N_MVC(s2, 4, REG_SP, s1, REG_SP);
}
}
-
- } else {
- /* 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 = cd->stackframesize * 8 + md->params[i].regoff;
+ s1 = md->params[i].regoff + cd->stackframesize * 8;
s2 = nmd->params[j].regoff;
if (IS_2_WORD_TYPE(t)) {
- N_MVC(96 + s2, 8, REG_SP, s1, REG_SP);
+ N_MVC(s2, 8, REG_SP, s1, REG_SP);
} else {
- N_MVC(96 + s2, 4, REG_SP, s1, REG_SP);
+ N_MVC(s2, 4, REG_SP, s1, REG_SP);
}
}
}
}
- /* put class into second argument register */
+ /* Handle native Java methods. */
- if (m->flags & ACC_STATIC) {
- M_MOV(REG_ITMP3, 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_ITMP3, REG_A1);
- disp = dseg_add_address(cd, _Jv_env);
- M_ILD_DSEG(REG_A0, disp);
+ /* put env into first argument register */
- /* do the native function call */
+ disp = dseg_add_address(cd, VM_get_jnienv());
+ M_ALD_DSEG(REG_A0, disp);
+ }
- M_CALL(REG_ITMP1); /* call */
+ /* Call native function. */
- /* save return value */
+ disp = dseg_add_functionptr(cd, f);
+ M_ALD_DSEG(REG_ITMP2, disp);
+ M_CALL(REG_ITMP2);
- t = md->returntype.type;
+ /* save return value */
- if (t != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(t)) {
- if (IS_2_WORD_TYPE(t)) {
- M_LST(REG_RESULT_PACKED, REG_SP, 96);
- } else {
- M_IST(REG_RESULT, REG_SP, 96);
- }
- } else {
- if (IS_2_WORD_TYPE(t)) {
- M_DST(REG_FRESULT, REG_SP, 96);
- } else {
- M_FST(REG_FRESULT, REG_SP, 96);
- }
- }
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(REG_RESULT, REG_SP, 96);
+ break;
+ case TYPE_LNG:
+ M_LST(REG_RESULT_PACKED, REG_SP, 96);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, 96);
+ break;
+ case TYPE_VOID:
+ break;
}
-#if !defined(NDEBUG)
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- emit_verbosecall_exit(jd);
-#endif
-
/* remove native stackframe info */
- M_MOV(REG_SP, REG_A0); /* currentsp */
- M_LDA(REG_A1, REG_PV, -N_PV_OFFSET); /* pv */
+ M_MOV(REG_SP, REG_A0);
+ M_LDA(REG_A1, REG_PV, -N_PV_OFFSET);
disp = dseg_add_functionptr(cd, codegen_finish_native_call);
M_ALD_DSEG(REG_ITMP1, disp);
M_CALL(REG_ITMP1);
- M_MOV(REG_RESULT, REG_ITMP3);
+
+ M_MOV(REG_RESULT, REG_ITMP3_XPTR);
/* restore return value */
- if (t != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(t)) {
- if (IS_2_WORD_TYPE(t)) {
- M_LLD(REG_RESULT_PACKED, REG_SP, 96);
- } else {
- M_ILD(REG_RESULT, REG_SP, 96);
- }
- } else {
- if (IS_2_WORD_TYPE(t)) {
- M_DLD(REG_FRESULT, REG_SP, 96);
- } else {
- M_FLD(REG_FRESULT, REG_SP, 96);
- }
- }
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(REG_RESULT, REG_SP, 96);
+ break;
+ case TYPE_LNG:
+ M_LLD(REG_RESULT_PACKED, REG_SP, 96);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, 96);
+ 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 * 4);
+#endif
+
/* load return address */
-
- M_ALD(REG_ITMP2, REG_SP, (cd->stackframesize - 1) * 8);
- /* remove stackframe */
+ M_ALD(REG_RA, REG_SP, (cd->stackframesize - 1) * 8);
- M_AADD_IMM(cd->stackframesize * 8, REG_SP);
+ /* remove stackframe */
- /* test for exception */
+ M_AADD_IMM(cd->stackframesize * 8, REG_SP);
- M_TEST(REG_ITMP3);
- M_BNE(SZ_BRC + SZ_BCR);
+ /* check for exception */
- /* return */
+ M_TEST(REG_ITMP3_XPTR);
+ M_BNE(SZ_BRC + SZ_BCR); /* if no exception then return */
- M_JMP(RN, REG_ITMP2);
+ M_RET;
/* handle exception */
- M_MOV(REG_ITMP3, REG_ITMP3_XPTR);
- M_MOV(REG_ITMP2, REG_ITMP1_XPC); /* get return address from stack */
+ M_MOV(REG_RA, REG_ITMP1_XPC);
+ M_ASUB_IMM(2, REG_ITMP1_XPC);
disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
M_ALD_DSEG(REG_ITMP2, disp);
M_JMP(RN, REG_ITMP2);
-
- /* generate patcher stubs */
-
- emit_patcher_traps(jd);
}
/*
projects / cacao.git / blobdiff