Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: codegen.c 4644 2006-03-16 18:44:46Z edwin $
-
*/
#include "config.h"
#include <assert.h>
+#include <stdint.h>
#include <stdio.h>
#include "vm/types.h"
#include "mm/memory.h"
#include "native/jni.h"
+#include "native/localref.h"
#include "native/native.h"
#include "vm/builtin.h"
#include "vm/exceptions.h"
#include "vmcore/loader.h"
#include "vmcore/options.h"
+#include "vm/jit/sparc64/solaris/macro_rename.h"
#define BUILTIN_FLOAT_ARGS 1
return lodisp;
}
+
+#ifndef NDEBUG
+bool check_13bit_imm(s8 imm)
+{
+ s4 sign = (imm >> 12) & 0x1;
+
+ if (sign == 0) {
+ if ((imm & ~0xfff) == 0) return true; /* pos imm. */
+ }
+ else
+ if ((imm & ~0xfff) + 0xfff == -1) return true; /* neg imm. */
+
+ printf("immediate out-of-bounds: %ld\n", imm);
+ return false;
+}
+#endif
/* codegen_emit ****************************************************************
{
s4 i, p, t, l;
- s4 savedregs_num, localbase;
+ s4 savedregs_num;
+ s4 framesize_disp;
#if 0 /* no leaf optimization yet */
savedregs_num = (jd->isleafmethod) ? 0 : 1; /* space to save the RA */
/* create method header */
(void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
- (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize */
+ framesize_disp = dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize */
#if defined(ENABLE_THREADS)
/* IsSync contains the offset relative to the stack pointer for the
*/
if (checksync && (m->flags & ACC_SYNCHRONIZED))
- (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8); /* IsSync */
+ (void) dseg_add_unique_s4(cd, JITSTACK + (rd->memuse + 1) * 8); /* IsSync */
else
#endif
(void) dseg_add_unique_s4(cd, 0); /* IsSync */
/* save register window and create stack frame (if necessary) */
- if (cd->stackframesize)
- M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP);
-
+ if (cd->stackframesize) {
+ if (cd->stackframesize <= 4095)
+ M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP);
+ else {
+ M_ILD_INTERN(REG_ITMP3, REG_PV_CALLER, framesize_disp);
+ M_SUB(REG_ZERO, REG_ITMP3, REG_ITMP3);
+ M_SAVE_REG(REG_SP, REG_ITMP3, REG_SP);
+ }
+ }
/* save callee saved float registers (none right now) */
#if 0
md = m->parseddesc;
- /* when storing locals, use this as base */
- localbase = JITSTACK;
-
- /* since the register allocator does not know about the shifting window
- * arg regs need to be copied via the stack
- */
- if (md->argintreguse > 0) {
- /* allocate scratch space for copying in to save(i&l) regs */
- M_SUB_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
-
- localbase += INT_ARG_CNT * 8;
-
- /* XXX could use the param slots on the stack for this! */
- for (p = 0; p < INT_ARG_CNT; p++)
- M_STX(REG_WINDOW_TRANSPOSE(abi_registers_integer_argument[p]), REG_SP, JITSTACK + (p * 8));
- }
-
-
for (p = 0, l = 0; p < md->paramcount; p++) {
t = md->paramtypes[p].type;
s1 = md->params[p].regoff;
if (IS_INT_LNG_TYPE(t)) { /* integer args */
+
+ s2 = var->vv.regoff;
if (!md->params[p].inmemory) { /* register arguments */
- /*s2 = rd->argintregs[s1];*/
- /*s2 = REG_WINDOW_TRANSPOSE(s2);*/
-
- /* need the argument index (p) here, not the register number */
+ s1 = REG_WINDOW_TRANSPOSE(s1);
if (!(var->flags & INMEMORY)) { /* reg arg -> register */
- /*M_INTMOVE(s2, var->vv.regoff);*/
- M_LDX(var->vv.regoff, REG_SP, JITSTACK + (p * 8));
- } else { /* reg arg -> spilled */
- /*M_STX(s2, REG_SP, (WINSAVE_CNT + var->vv.regoff) * 8);*/
-
- M_LDX(REG_ITMP1, REG_SP, JITSTACK + (p * 8));
- M_STX(REG_ITMP1, REG_SP, localbase + (var->vv.regoff * 8));
+ /* the register allocator does not know about the window. */
+ /* avoid copying the locals from save to save regs by */
+ /* swapping variables. */
+
+ {
+ int old_dest = var->vv.regoff;
+ int new_dest = p + 24;
+
+ /* run through all variables */
+
+ for (i = 0; i < jd->varcount; i++) {
+ varinfo* uvar = VAR(i);
+
+ if (IS_FLT_DBL_TYPE(uvar->type) || IS_INMEMORY(uvar->flags))
+ continue;
+
+ s2 = uvar->vv.regoff;
+
+ /* free the in reg by moving all other references */
+
+ if (s2 == new_dest) {
+ uvar->vv.regoff = old_dest;
+ /*printf("p%d-var[%d]: moved %d -> %d (to free save reg)\n", p, i, s2, old_dest);*/
+ }
+
+ /* move all variables to the in reg */
+
+ if (s2 == old_dest) {
+ uvar->vv.regoff = new_dest;
+ /*printf("p%d-var[%d]: moved %d -> %d (to avoid copy)\n", p, i, s2, new_dest);*/
+ }
+ }
+ }
+
+
+
+ }
+ else { /* reg arg -> spilled */
+ M_STX(s1, REG_SP, JITSTACK + var->vv.regoff);
}
} else { /* stack arguments */
if (!(var->flags & INMEMORY)) { /* stack arg -> register */
- M_LDX(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
+ M_LDX(var->vv.regoff, REG_FP, JITSTACK + s1);
} else { /* stack arg -> spilled */
/* add the callers window save registers */
- var->vv.regoff = cd->stackframesize + s1;
+ var->vv.regoff = cd->stackframesize * 8 + s1;
}
}
M_FLTMOVE(s1, var->vv.regoff);
} else { /* reg arg -> spilled */
- M_DST(s1, REG_SP, localbase + (var->vv.regoff) * 8);
+ M_DST(s1, REG_SP, JITSTACK + var->vv.regoff);
}
} else { /* stack arguments */
if (!(var->flags & INMEMORY)) { /* stack-arg -> register */
- M_DLD(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
+ M_DLD(var->vv.regoff, REG_FP, JITSTACK + s1);
} else { /* stack-arg -> spilled */
- var->vv.regoff = cd->stackframesize + s1;
+ var->vv.regoff = cd->stackframesize * 8 + s1;
}
}
}
} /* end for */
- if (md->argintreguse > 0) {
- /* release scratch space */
- M_ADD_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
- }
-
-
-
}
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
emit_nullpointer_check(cd, iptr, s1);
- M_ILD(d, s1, OFFSET(java_arrayheader, size));
+ M_ILD(d, s1, OFFSET(java_array_t, size));
emit_store_dst(jd, iptr, d);
break;
/* implicit null-pointer check */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP3);
- M_BLDS(d, REG_ITMP3, OFFSET(java_bytearray, data[0]));
+ M_BLDS(d, REG_ITMP3, OFFSET(java_bytearray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP3);
M_AADD(s2, REG_ITMP3, REG_ITMP3);
- M_SLDU(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
+ M_SLDU(d, REG_ITMP3, OFFSET(java_chararray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP3);
M_AADD(s2, REG_ITMP3, REG_ITMP3);
- M_SLDS(d, REG_ITMP3, OFFSET(java_shortarray, data[0]));
+ M_SLDS(d, REG_ITMP3, OFFSET(java_shortarray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 2, REG_ITMP3);
M_AADD(REG_ITMP3, s1, REG_ITMP3);
- M_ILD(d, REG_ITMP3, OFFSET(java_intarray, data[0]));
+ M_ILD(d, REG_ITMP3, OFFSET(java_intarray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 3, REG_ITMP3);
M_AADD(REG_ITMP3, s1, REG_ITMP3);
- M_LDX(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
+ M_LDX(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 2, REG_ITMP3);
M_AADD(REG_ITMP3, s1, REG_ITMP3);
- M_FLD(d, REG_ITMP3, OFFSET(java_floatarray, data[0]));
+ M_FLD(d, REG_ITMP3, OFFSET(java_floatarray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 3, REG_ITMP3);
M_AADD(REG_ITMP3, s1, REG_ITMP3);
- M_DLD(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
+ M_DLD(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP3);
M_AADD(REG_ITMP3, s1, REG_ITMP3);
- M_ALD(d, REG_ITMP3, OFFSET(java_objectarray, data[0]));
+ M_ALD(d, REG_ITMP3, OFFSET(java_objectarray_t, data[0]));
emit_store_dst(jd, iptr, d);
break;
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- M_BST(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
+ M_BST(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
break;
case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
M_AADD(s2, s1, REG_ITMP1);
M_AADD(s2, REG_ITMP1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- M_SST(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
+ M_SST(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
break;
case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
M_ASLL_IMM(s2, 2, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
+ M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
break;
case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
M_ASLL_IMM(s2, 3, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
- M_STX_INTERN(s3, REG_ITMP1, OFFSET(java_longarray, data[0]));
+ M_STX_INTERN(s3, REG_ITMP1, OFFSET(java_longarray_t, data[0]));
break;
case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
M_ASLL_IMM(s2, 2, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_FTMP1);
- M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+ M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
break;
case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
M_ASLL_IMM(s2, 3, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_FTMP1);
- M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
+ M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
break;
M_AADD(REG_ITMP2, s1, REG_ITMP1);
s3 = emit_load_s3(jd, iptr, REG_ITMP3);
/* implicit null-pointer check */
- M_AST_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+ M_AST_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
break;
/* implicit null-pointer check */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP1);
- M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray, data[0]));
+ M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
break;
case ICMD_CASTORECONST: /* ..., arrayref, index ==> ... */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_AADD(s2, s1, REG_ITMP1);
M_AADD(s2, REG_ITMP1, REG_ITMP1);
- M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray, data[0]));
+ M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
break;
case ICMD_IASTORECONST: /* ..., arrayref, index ==> ... */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 2, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
- M_IST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_intarray, data[0]));
+ M_IST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
break;
case ICMD_LASTORECONST: /* ..., arrayref, index ==> ... */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, 3, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
- M_STX_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_longarray, data[0]));
+ M_STX_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_longarray_t, data[0]));
break;
case ICMD_AASTORECONST: /* ..., arrayref, index ==> ... */
emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
M_AADD(REG_ITMP2, s1, REG_ITMP1);
- M_AST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+ M_AST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
break;
case ICMD_GETSTATIC: /* ... ==> ..., value */
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- uf = iptr->sx.s23.s3.uf;
+ uf = iptr->sx.s23.s3.uf;
fieldtype = uf->fieldref->parseddesc.fd->type;
disp = dseg_add_unique_address(cd, uf);
codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
}
else {
- fi = iptr->sx.s23.s3.fmiref->p.field;
+ fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
- disp = dseg_add_address(cd, &(fi->value));
+ disp = dseg_add_address(cd, fi->value);
if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
case ICMD_PUTSTATIC: /* ..., value ==> ... */
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
- uf = iptr->sx.s23.s3.uf;
+ uf = iptr->sx.s23.s3.uf;
fieldtype = uf->fieldref->parseddesc.fd->type;
disp = dseg_add_unique_address(cd, uf);
codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
}
else {
- fi = iptr->sx.s23.s3.fmiref->p.field;
+ fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
- disp = dseg_add_address(cd, &(fi->value));
+ disp = dseg_add_address(cd, fi->value);
if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
uf = iptr->sx.s23.s3.uf;
fieldtype = uf->fieldref->parseddesc.fd->type;
- disp = dseg_add_unique_address(cd, uf);
+ disp = dseg_add_unique_address(cd, uf);
codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
}
else {
fi = iptr->sx.s23.s3.fmiref->p.field;
fieldtype = fi->type;
- disp = dseg_add_address(cd, &(fi->value));
+ disp = dseg_add_address(cd, fi->value);
if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
if (l == 0) {
M_INTMOVE(s1, REG_ITMP1);
}
- else if (l <= 4095) {
+ else if (-l >= 4096 && -l <= 4095) {
M_ADD_IMM(s1, -l, REG_ITMP1);
}
else {
ICONST(REG_ITMP2, l);
- /* XXX: do I need to truncate s1 to 32-bit ? */
M_SUB(s1, REG_ITMP2, REG_ITMP1);
}
- i = i - l + 1;
+
+ i = i - l + 1; /* number of targets (>0) */
/* range check */
}
else {
s1 = emit_load(jd, iptr, var, REG_ITMP1);
- M_STX(s1, REG_SP, JITSTACK + d * 8);
+ M_STX(s1, REG_SP, JITSTACK + d);
}
}
else {
}
else {
s1 = emit_load(jd, iptr, var, REG_FTMP1);
- M_DST(s1, REG_SP, JITSTACK + d * 8);
+ M_DST(s1, REG_SP, JITSTACK + d);
}
}
}
sizeof(methodptr) * lm->vftblindex;
/* implicit null-pointer check */
- M_ALD(REG_METHODPTR, REG_OUT0,OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_METHODPTR, REG_OUT0,OFFSET(java_object_t, vftbl));
M_ALD(REG_PV_CALLER, REG_METHODPTR, s1);
/* generate the actual call */
}
/* implicit null-pointer check */
- M_ALD(REG_METHODPTR, REG_OUT0, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_METHODPTR, REG_OUT0, OFFSET(java_object_t, vftbl));
M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
M_ALD(REG_PV_CALLER, REG_METHODPTR, s2);
superindex = super->index;
}
-#if defined(ENABLE_THREADS)
- codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+ if ((super == NULL) || !(super->flags & ACC_INTERFACE))
+ CODEGEN_CRITICAL_SECTION_NEW;
s1 = emit_load_s1(jd, iptr, REG_ITMP1);
emit_label_beqz(cd, BRANCH_LABEL_3, s1);
}
- M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
M_ILD(REG_ITMP3, REG_ITMP2,
OFFSET(vftbl_t, interfacetablelength));
M_ADD_IMM(REG_ITMP3, -superindex, REG_ITMP3);
emit_label_beqz(cd, BRANCH_LABEL_5, s1);
}
- M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
M_ALD(REG_ITMP3, REG_PV, disp);
-#if defined(ENABLE_THREADS)
- codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+
+ 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_SUB(REG_ITMP2, REG_ITMP3, REG_ITMP2);
M_ALD(REG_ITMP3, REG_PV, disp);
M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
-#if defined(ENABLE_THREADS)
- codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+
+ CODEGEN_CRITICAL_SECTION_END;
+
/* } */
M_CMP(REG_ITMP3, REG_ITMP2);
emit_classcast_check(cd, iptr, BRANCH_ULT, REG_ITMP3, s1);
supervftbl = super->vftbl;
}
-#if defined(ENABLE_THREADS)
- codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+ 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) {
emit_label_beqz(cd, BRANCH_LABEL_3, s1);
}
- M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
M_CMP_IMM(REG_ITMP3, superindex);
M_BLE(4);
emit_label_beqz(cd, BRANCH_LABEL_5, s1);
}
- M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
+ M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
M_ALD(REG_ITMP2, REG_PV, disp);
-#if defined(ENABLE_THREADS)
- codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+
+ 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));
-#if defined(ENABLE_THREADS)
- codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
-#endif
+
+ CODEGEN_CRITICAL_SECTION_END;
+
M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
M_CMP(REG_ITMP1, REG_ITMP2);
M_XCMOVULE_IMM(1, d);
} /* switch */
} /* for instruction */
+
+ MCODECHECK(64);
+ /* 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_stubs(jd);
- REPLACEMENT_EMIT_STUBS(jd);
/* everything's ok */
s4 t;
s4 s1, s2, disp;
s4 funcdisp; /* displacement of the function */
+ s4 fltregarg_offset[FLT_ARG_CNT];
/* get required compiler data */
sizeof(stackframeinfo) / SIZEOF_VOID_P +
sizeof(localref_table) / SIZEOF_VOID_P +
md->paramcount + /* for saving arguments over calls */
- nmd->memuse + /* nmd knows about the native stackframe layout */
+ nmd->memuse + /* nmd->memuse includes the (6) abi params */
WINSAVE_CNT;
/* save float argument registers */
+ assert(ABIPARAMS_CNT >= FLT_ARG_CNT);
+
for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
- M_DST(abi_registers_float_argument[i], REG_SP, CSTACK + (j * 8));
+ s1 = WINSAVE_CNT + nmd->memuse + j;
+ M_DST(abi_registers_float_argument[i], REG_SP, BIAS + (s1*8));
+ fltregarg_offset[i] = s1; /* remember stack offset */
j++;
}
}
/* prepare data structures for native function call */
- M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp == top of the stack frame (absolute == +BIAS) */
+ M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp == top of the stack frame (absolute, ie. + BIAS) */
M_MOV(REG_PV_CALLEE, REG_OUT1);
M_MOV(REG_FP, REG_OUT2); /* java sp */
M_MOV(REG_RA_CALLEE, REG_OUT3);
M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
M_NOP; /* XXX fill me! */
- /* restore float argument registers */
-
+ /* keep float arguments on stack */
+#if 0
for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
M_DLD(abi_registers_float_argument[i], REG_SP, CSTACK + (j * 8));
j++;
}
}
+#endif
/* copy or spill arguments to new locations */
- int num_fltregargs = 0;
- int fltregarg_inswap[16];
+
for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
t = md->paramtypes[i].type;
if (IS_INT_LNG_TYPE(t)) {
+
+ /* integral types */
+
if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
/* s1 refers to the old window, transpose */
s1 = REG_WINDOW_TRANSPOSE(s1);
if (!nmd->params[j].inmemory) {
- s2 = nat_argintregs[nmd->params[j].regoff];
+ s2 = nmd->params[j].regoff;
M_INTMOVE(s1, s2);
} else {
- s2 = nmd->params[j].regoff - 6;
- M_AST(s1, REG_SP, CSTACK + s2 * 8);
+ /* nmd's regoff is relative to the start of the param array */
+ s2 = BIAS + WINSAVE_CNT * 8 + nmd->params[j].regoff;
+ M_AST(s1, REG_SP, s2);
}
} else {
- /*assert(false);*/
- s1 = md->params[i].regoff + cd->stackframesize;
- s2 = nmd->params[j].regoff - 6;
- M_ALD(REG_ITMP1, REG_SP, CSTACK + s1 * 8);
- M_AST(REG_ITMP1, REG_SP, CSTACK + s2 * 8);
+ if (!nmd->params[j].inmemory) {
+ /* JIT stack arg -> NAT reg arg */
+
+ /* Due to the Env pointer that is always passed, the 6th JIT arg */
+ /* is the 7th (or 8th w/ class ptr) NAT arg, and goes to the stack */
+
+ assert(false); /* path never taken */
+ }
+
+ s1 = md->params[i].regoff + cd->stackframesize * 8;
+ s2 = BIAS + WINSAVE_CNT * 8 + nmd->params[j].regoff;
+ M_ALD(REG_ITMP1, REG_SP, CSTACK + s1);
+ M_AST(REG_ITMP1, REG_SP, s2);
}
} else {
+
+ /* floating point types */
+
if (!md->params[i].inmemory) {
s1 = md->params[i].regoff;
if (!nmd->params[j].inmemory) {
+
/* no mapping to regs needed, native flt args use regoff */
s2 = nmd->params[j].regoff;
-
- /* we cannot move flt regs to their native arg locations directly */
- M_DMOV(s1, s2 + 16);
- fltregarg_inswap[num_fltregargs] = s2;
- num_fltregargs++;
- /*printf("flt arg swap to %d\n", s2 + 16);*/
- } else {
+ /* JIT float regs are still on the stack */
+ M_DLD(s2, REG_SP, BIAS + (fltregarg_offset[i] * 8));
+ }
+ else {
+ /* not supposed to happen with 16 NAT flt args */
+ assert(false);
+ /*
s2 = nmd->params[j].regoff;
if (IS_2_WORD_TYPE(t))
M_DST(s1, REG_SP, CSTACK + (s2 * 8));
else
M_FST(s1, REG_SP, CSTACK + (s2 * 8));
+ */
}
- } else {
- /*assert(false);*/
- s1 = md->params[i].regoff + cd->stackframesize;
- s2 = nmd->params[j].regoff - 6;
- if (IS_2_WORD_TYPE(t)) {
- M_DLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
- M_DST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
- } else {
- M_FLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
- M_FST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
+ }
+ else {
+ s1 = md->params[i].regoff;
+
+ if (!nmd->params[j].inmemory) {
+
+ /* JIT stack -> NAT reg */
+
+ s2 = nmd->params[j].regoff;
+ M_DLD(s2, REG_FP, JITSTACK + s1);
+ }
+ else {
+
+ /* JIT stack -> NAT stack */
+
+ s2 = WINSAVE_CNT * 8 + nmd->params[j].regoff;
+
+ /* The FTMP register may already be loaded with args */
+ /* we know $f0 is unused because of the env pointer */
+ M_DLD(REG_F0, REG_FP, JITSTACK + s1);
+ M_DST(REG_F0, REG_SP, BIAS + s2);
}
}
}
}
- /* move swapped float args to target regs */
- for (i = 0; i < num_fltregargs; i++) {
- s1 = fltregarg_inswap[i];
- M_DMOV(s1 + 16, s1);
- /*printf("float arg to target reg: %d ==> %d\n", s1+16, s1);*/
- }
-
/* put class into second argument register */
projects / cacao.git / blobdiff