/* src/vm/jit/powerpc/emit.c - PowerPC code emitter functions
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ 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
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Christian Thalinger
-
- Changes:
-
- $Id: emitfuncs.c 4398 2006-01-31 23:43:08Z twisti $
-
*/
#include "config.h"
#include <assert.h>
+#include <stdint.h>
#include "vm/types.h"
#include "vm/jit/powerpc/codegen.h"
+#include "mm/memory.h"
+
+#include "threads/lock-common.h"
+
#include "vm/builtin.h"
-#include "vm/options.h"
+#include "vm/exceptions.h"
+
+#include "vm/jit/abi.h"
#include "vm/jit/asmpart.h"
+#include "vm/jit/codegen-common.h"
#include "vm/jit/dseg.h"
#include "vm/jit/emit-common.h"
#include "vm/jit/jit.h"
#include "vm/jit/replace.h"
+#include "vmcore/options.h"
+
/* emit_load *******************************************************************
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
-
- if (IS_FLT_DBL_TYPE(src->type)) {
- if (IS_2_WORD_TYPE(src->type))
- M_DLD(tempreg, REG_SP, disp);
- else
- M_FLD(tempreg, REG_SP, disp);
- }
- else {
- if (IS_2_WORD_TYPE(src->type))
- M_LLD(tempreg, REG_SP, disp);
- else
- M_ILD(tempreg, REG_SP, disp);
+ disp = src->vv.regoff;
+
+ switch (src->type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(tempreg, REG_SP, disp);
+ break;
+ case TYPE_LNG:
+ M_LLD(tempreg, REG_SP, disp);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(tempreg, REG_SP, disp);
+ break;
+ default:
+ vm_abort("emit_load: unknown type %d", src->type);
}
reg = tempreg;
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
+ disp = src->vv.regoff;
M_ILD(tempreg, REG_SP, disp + 4);
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
+ disp = src->vv.regoff;
M_ILD(tempreg, REG_SP, disp);
/* emit_store ******************************************************************
- XXX
+ Emit a possible store for the given variable.
*******************************************************************************/
void emit_store(jitdata *jd, instruction *iptr, varinfo *dst, s4 d)
{
codegendata *cd;
+ s4 disp;
/* get required compiler data */
if (IS_INMEMORY(dst->flags)) {
COUNT_SPILLS;
- if (IS_FLT_DBL_TYPE(dst->type)) {
- if (IS_2_WORD_TYPE(dst->type))
- M_DST(d, REG_SP, dst->vv.regoff * 4);
- else
- M_FST(d, REG_SP, dst->vv.regoff * 4);
- }
- else {
- if (IS_2_WORD_TYPE(dst->type))
- M_LST(d, REG_SP, dst->vv.regoff * 4);
- else
- M_IST(d, REG_SP, dst->vv.regoff * 4);
+ disp = dst->vv.regoff;
+
+ switch (dst->type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(d, REG_SP, disp);
+ break;
+ case TYPE_LNG:
+ M_LST(d, REG_SP, disp);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(d, REG_SP, disp);
+ break;
+ default:
+ vm_abort("emit_store: unknown type %d", dst->type);
}
}
}
*******************************************************************************/
-void emit_copy(jitdata *jd, instruction *iptr, varinfo *src, varinfo *dst)
+void emit_copy(jitdata *jd, instruction *iptr)
{
- codegendata *cd;
- s4 s1, d;
+ codegendata *cd;
+ varinfo *src;
+ varinfo *dst;
+ s4 s1, d;
/* get required compiler data */
cd = jd->cd;
+ /* get source and destination variables */
+
+ src = VAROP(iptr->s1);
+ dst = VAROP(iptr->dst);
+
if ((src->vv.regoff != dst->vv.regoff) ||
(IS_INMEMORY(src->flags ^ dst->flags))) {
+ if ((src->type == TYPE_RET) || (dst->type == TYPE_RET)) {
+ /* emit nothing, as the value won't be used anyway */
+ 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 (s1 != d) {
- if (IS_FLT_DBL_TYPE(src->type))
+ switch (src->type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_MOV(s1, d);
+ break;
+ case TYPE_LNG:
+ M_MOV(GET_LOW_REG(s1), GET_LOW_REG(d));
+ M_MOV(GET_HIGH_REG(s1), GET_HIGH_REG(d));
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
M_FMOV(s1, d);
- else {
- if (IS_2_WORD_TYPE(src->type)) {
- M_MOV(GET_LOW_REG(s1), GET_LOW_REG(d));
- M_MOV(GET_HIGH_REG(s1), GET_HIGH_REG(d));
- }
- else
- M_MOV(s1, d);
+ break;
+ default:
+ vm_abort("emit_copy: unknown type %d", src->type);
}
}
}
-/* emit_nullpointer_check ******************************************************
-
- Emit a NullPointerException check.
-
-*******************************************************************************/
-
-void emit_nullpointer_check(codegendata *cd, s4 reg)
-{
- if (checknull) {
- M_TST(reg);
- M_BEQ(0);
- codegen_add_nullpointerexception_ref(cd);
- }
-}
-
-
-/* emit_arrayindexoutofbounds_check ********************************************
-
- Emit a ArrayIndexOutOfBoundsException check.
-
-*******************************************************************************/
-
-void emit_arrayindexoutofbounds_check(codegendata *cd, s4 s1, s4 s2)
-{
- if (checkbounds) {
- M_ILD(REG_ITMP3, s1, OFFSET(java_arrayheader, size));
- M_CMPU(s2, REG_ITMP3);
- M_BGE(0);
- codegen_add_arrayindexoutofboundsexception_ref(cd, s2);
- }
-}
-
-
-/* emit_exception_stubs ********************************************************
+/* emit_branch *****************************************************************
- Generates the code for the exception stubs.
+ Emits the code for conditional and unconditional branchs.
*******************************************************************************/
-void emit_exception_stubs(jitdata *jd)
+void emit_branch(codegendata *cd, s4 disp, s4 condition, s4 reg, u4 opt)
{
- codegendata *cd;
- registerdata *rd;
- exceptionref *er;
- s4 branchmpc;
- s4 targetmpc;
- s4 targetdisp;
- s4 disp;
-
- /* get required compiler data */
-
- cd = jd->cd;
- rd = jd->rd;
-
- /* generate exception stubs */
-
- targetdisp = 0;
+ s4 checkdisp;
+ s4 branchdisp;
- for (er = cd->exceptionrefs; er != NULL; er = er->next) {
- /* back-patch the branch to this exception code */
+ /* calculate the different displacements */
- branchmpc = er->branchpos;
- targetmpc = cd->mcodeptr - cd->mcodebase;
+ checkdisp = disp + 4;
+ branchdisp = (disp - 4) >> 2;
- md_codegen_patch_branch(cd, branchmpc, targetmpc);
+ /* check which branch to generate */
- MCODECHECK(100);
+ if (condition == BRANCH_UNCONDITIONAL) {
+ /* check displacement for overflow */
- /* Move the value register to a temporary register, if
- there is the need for it. */
+ if ((checkdisp < (s4) 0xfe000000) || (checkdisp > (s4) 0x01fffffc)) {
+ /* if the long-branches flag isn't set yet, do it */
- if (er->reg != -1)
- M_MOV(er->reg, REG_ITMP1);
-
- /* calcuate exception address */
-
- M_LDA(REG_ITMP2_XPC, REG_PV, er->branchpos - 4);
-
- /* move function to call into REG_ITMP3 */
-
- disp = dseg_add_functionptr(cd, er->function);
- M_ALD(REG_ITMP3, REG_PV, disp);
-
- if (targetdisp == 0) {
- targetdisp = ((u4 *) cd->mcodeptr) - ((u4 *) cd->mcodebase);
-
- if (jd->isleafmethod) {
- M_MFLR(REG_ZERO);
- M_AST(REG_ZERO, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
+ if (!CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) {
+ cd->flags |= (CODEGENDATA_FLAG_ERROR |
+ CODEGENDATA_FLAG_LONGBRANCHES);
}
- M_MOV(REG_PV, rd->argintregs[0]);
- M_MOV(REG_SP, rd->argintregs[1]);
-
- if (jd->isleafmethod)
- M_MOV(REG_ZERO, rd->argintregs[2]);
- else
- M_ALD(rd->argintregs[2],
- REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
-
- M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
- M_MOV(REG_ITMP1, rd->argintregs[4]);
-
- M_STWU(REG_SP, REG_SP, -(LA_SIZE + 6 * 4));
- M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
-
- M_MTCTR(REG_ITMP3);
- M_JSR;
- M_MOV(REG_RESULT, REG_ITMP1_XPTR);
-
- M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
- M_IADD_IMM(REG_SP, LA_SIZE + 6 * 4, REG_SP);
+ vm_abort("emit_branch: emit unconditional long-branch code");
+ }
+ else {
+ M_BR(branchdisp);
+ }
+ }
+ else {
+ /* and displacement for overflow */
- if (jd->isleafmethod) {
- /* XXX FIXME: REG_ZERO can cause problems here! */
- assert(cd->stackframesize * 4 <= 32767);
+ if ((checkdisp < (s4) 0xffff8000) || (checkdisp > (s4) 0x00007fff)) {
+ /* if the long-branches flag isn't set yet, do it */
- M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
- M_MTLR(REG_ZERO);
+ if (!CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd)) {
+ cd->flags |= (CODEGENDATA_FLAG_ERROR |
+ CODEGENDATA_FLAG_LONGBRANCHES);
}
- disp = dseg_add_functionptr(cd, asm_handle_exception);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
+ switch (condition) {
+ case BRANCH_EQ:
+ M_BNE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_NE:
+ M_BEQ(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_LT:
+ M_BGE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_GE:
+ M_BLT(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_GT:
+ M_BLE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_LE:
+ M_BGT(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_NAN:
+ vm_abort("emit_branch: long BRANCH_NAN");
+ break;
+ default:
+ vm_abort("emit_branch: unknown condition %d", condition);
+ }
}
else {
- disp = (((u4 *) cd->mcodebase) + targetdisp) -
- (((u4 *) cd->mcodeptr) + 1);
- M_BR(disp);
+ switch (condition) {
+ case BRANCH_EQ:
+ M_BEQ(branchdisp);
+ break;
+ case BRANCH_NE:
+ M_BNE(branchdisp);
+ break;
+ case BRANCH_LT:
+ M_BLT(branchdisp);
+ break;
+ case BRANCH_GE:
+ M_BGE(branchdisp);
+ break;
+ case BRANCH_GT:
+ M_BGT(branchdisp);
+ break;
+ case BRANCH_LE:
+ M_BLE(branchdisp);
+ break;
+ case BRANCH_NAN:
+ M_BNAN(branchdisp);
+ break;
+ default:
+ vm_abort("emit_branch: unknown condition %d", condition);
+ }
}
}
}
-/* emit_patcher_stubs **********************************************************
+/* emit_arithmetic_check *******************************************************
- Generates the code for the patcher stubs.
+ Emit an ArithmeticException check.
*******************************************************************************/
-void emit_patcher_stubs(jitdata *jd)
+void emit_arithmetic_check(codegendata *cd, instruction *iptr, s4 reg)
{
- codegendata *cd;
- patchref *pref;
- u4 mcode;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
- s4 targetdisp;
- s4 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 = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
- M_BR(disp);
-
- cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
-
- /* create stack frame - keep stack 16-byte aligned */
-
- M_AADD_IMM(REG_SP, -8 * 4, REG_SP);
-
- /* calculate return address and move it onto the stack */
-
- M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
- M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 4);
-
- /* move pointer to java_objectheader onto stack */
-
-#if defined(ENABLE_THREADS)
- /* order reversed because of data segment layout */
-
- (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 */
-
- M_LDA(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 4);
-#else
- /* do nothing */
-#endif
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_TST(reg);
+ M_BNE(1);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_ARITHMETIC);
+ }
+}
- /* move machine code onto stack */
- disp = dseg_add_s4(cd, mcode);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 4);
+/* emit_arrayindexoutofbounds_check ********************************************
- /* move class/method/field reference onto stack */
+ Emit a ArrayIndexOutOfBoundsException check.
- disp = dseg_add_address(cd, pref->ref);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 4);
+*******************************************************************************/
- /* move data segment displacement onto stack */
+void emit_arrayindexoutofbounds_check(codegendata *cd, instruction *iptr, s4 s1, s4 s2)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_ILD(REG_ITMP3, s1, OFFSET(java_array_t, size));
+ M_TRAPGEU(s2, REG_ITMP3);
+ }
+}
- disp = dseg_add_s4(cd, pref->disp);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 4);
- /* move patcher function pointer onto stack */
+/* emit_classcast_check ********************************************************
- disp = dseg_add_functionptr(cd, pref->patcher);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
+ Emit a ClassCastException check.
- if (targetdisp == 0) {
- targetdisp = ((u4 *) cd->mcodeptr) - ((u4 *) cd->mcodebase);
+*******************************************************************************/
- disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
- else {
- disp = (((u4 *) cd->mcodebase) + targetdisp) -
- (((u4 *) cd->mcodeptr) + 1);
- M_BR(disp);
+void emit_classcast_check(codegendata *cd, instruction *iptr, s4 condition, s4 reg, s4 s1)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ switch (condition) {
+ case BRANCH_LE:
+ M_BGT(1);
+ break;
+ case BRANCH_EQ:
+ M_BNE(1);
+ break;
+ case BRANCH_GT:
+ M_BLE(1);
+ break;
+ default:
+ vm_abort("emit_classcast_check: unknown condition %d", condition);
}
+ M_ALD_INTERN(s1, REG_ZERO, EXCEPTION_HARDWARE_CLASSCAST);
}
}
-/* emit_replacement_stubs ******************************************************
+/* emit_nullpointer_check ******************************************************
- Generates the code for the replacement stubs.
+ Emit a NullPointerException check.
*******************************************************************************/
-void emit_replacement_stubs(jitdata *jd)
+void emit_nullpointer_check(codegendata *cd, instruction *iptr, s4 reg)
{
- codegendata *cd;
- codeinfo *code;
- rplpoint *rplp;
- u1 *savedmcodeptr;
- s4 disp;
- s4 i;
-
- /* get required compiler data */
-
- cd = jd->cd;
- code = jd->code;
-
- rplp = code->rplpoints;
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_TST(reg);
+ M_BNE(1);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
+ }
+}
- for (i = 0; i < code->rplpointcount; ++i, ++rplp) {
- /* check code segment size */
- MCODECHECK(100);
+/* emit_exception_check ********************************************************
- /* note start of stub code */
+ Emit an Exception check.
- rplp->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
+*******************************************************************************/
- /* make machine code for patching */
+void emit_exception_check(codegendata *cd, instruction *iptr)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_TST(REG_RESULT);
+ M_BNE(1);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_EXCEPTION);
+ }
+}
- savedmcodeptr = cd->mcodeptr;
- cd->mcodeptr = (u1 *) &(rplp->mcode) + 1; /* big-endian */
- disp = (ptrint) ((s4 *) rplp->outcode - (s4 *) rplp->pc) - 1;
- M_BR(disp);
+/* emit_trap *******************************************************************
- cd->mcodeptr = savedmcodeptr;
+ Emit a trap instruction and return the original machine code.
- /* create stack frame - keep 16-byte aligned */
+*******************************************************************************/
- M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
+uint32_t emit_trap(codegendata *cd)
+{
+ uint32_t mcode;
- /* push address of `rplpoint` struct */
+ /* Get machine code which is patched back in later. The
+ trap is 1 instruction word long. */
- disp = dseg_add_address(cd, rplp);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
+ mcode = *((u4 *) cd->mcodeptr);
- /* jump to replacement function */
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_PATCHER);
- disp = dseg_add_functionptr(cd, asm_replacement_out);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
+ return mcode;
}
*******************************************************************************/
-#if !defined(NDEBUG)
void emit_verbosecall_enter(jitdata *jd)
{
+#if !defined(NDEBUG)
methodinfo *m;
codegendata *cd;
registerdata *rd;
- s4 s1, p, t, d;
- int stack_off;
- int stack_size;
- methoddesc *md;
+ methoddesc *md;
+ int32_t disp;
+ int32_t i;
+ int32_t s, d;
+ int32_t x;
+
+ if (!JITDATA_HAS_FLAG_VERBOSECALL(jd))
+ return;
/* get required compiler data */
rd = jd->rd;
md = m->parseddesc;
-
- /* Build up Stackframe for builtin_trace_args call (a multiple of 16) */
- /* For Darwin: */
- /* LA + TRACE_ARGS_NUM u8 args + methodinfo + LR */
- /* LA_SIZE(=6*4) + 8*8 + 4 + 4 + 0(Padding) */
- /* 6 * 4 + 8 * 8 + 2 * 4 = 12 * 8 = 6 * 16 */
- /* For Linux: */
- /* LA + (TRACE_ARGS_NUM - INT_ARG_CNT/2) u8 args + methodinfo */
- /* + INT_ARG_CNT * 4 ( save integer registers) + LR + 8 + 8 (Padding) */
- /* LA_SIZE(=2*4) + 4 * 8 + 4 + 8 * 4 + 4 + 8 */
- /* 2 * 4 + 4 * 8 + 10 * 4 + 1 * 8 + 8= 12 * 8 = 6 * 16 */
-
- /* in nativestubs no Place to save the LR (Link Register) would be needed */
- /* but since the stack frame has to be aligned the 4 Bytes would have to */
- /* be padded again */
-
-#if defined(__DARWIN__)
- stack_size = LA_SIZE + (TRACE_ARGS_NUM + 1) * 8;
-#else
- stack_size = 6 * 16;
-#endif
/* mark trace code */
M_MFLR(REG_ZERO);
M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
- M_STWU(REG_SP, REG_SP, -stack_size);
-
- M_CLR(REG_ITMP1); /* clear help register */
-
- /* save up to TRACE_ARGS_NUM arguments into the reserved stack space */
-#if defined(__DARWIN__)
- /* Copy Params starting from first to Stack */
- /* since TRACE_ARGS == INT_ARG_CNT all used integer argument regs */
- /* are saved */
- p = 0;
-#else
- /* Copy Params starting from fifth to Stack (INT_ARG_CNT/2) are in */
- /* integer argument regs */
- /* all integer argument registers have to be saved */
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- /* save integer argument registers */
- M_IST(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
- }
- p = 4;
-#endif
- stack_off = LA_SIZE;
- for (; p < md->paramcount && p < TRACE_ARGS_NUM; p++, stack_off += 8) {
- t = md->paramtypes[p].type;
- if (IS_INT_LNG_TYPE(t)) {
- if (!md->params[p].inmemory) { /* Param in Arg Reg */
- if (IS_2_WORD_TYPE(t)) {
- M_IST(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
- , REG_SP, stack_off);
- M_IST(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
- , REG_SP, stack_off + 4);
- } else {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_IST(rd->argintregs[md->params[p].regoff]
- , REG_SP, stack_off + 4);
- }
- } else { /* Param on Stack */
- s1 = (md->params[p].regoff + cd->stackframesize) * 4
- + stack_size;
- if (IS_2_WORD_TYPE(t)) {
- M_ILD(REG_ITMP2, REG_SP, s1);
- M_IST(REG_ITMP2, REG_SP, stack_off);
- M_ILD(REG_ITMP2, REG_SP, s1 + 4);
- M_IST(REG_ITMP2, REG_SP, stack_off + 4);
- } else {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_ILD(REG_ITMP2, REG_SP, s1);
- M_IST(REG_ITMP2, REG_SP, stack_off + 4);
- }
- }
- } else { /* IS_FLT_DBL_TYPE(t) */
- if (!md->params[p].inmemory) { /* in Arg Reg */
- s1 = rd->argfltregs[md->params[p].regoff];
- if (!IS_2_WORD_TYPE(t)) {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_FST(s1, REG_SP, stack_off + 4);
- } else {
- M_DST(s1, REG_SP, stack_off);
- }
- } else { /* on Stack */
- /* this should not happen */
+ M_STWU(REG_SP, REG_SP, -(LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8));
+
+ M_CLR(REG_ITMP1); /* prepare a "zero" register */
+
+ /* save argument registers */
+
+ for (i = 0; i < md->paramcount; i++) {
+ if (!md->params[i].inmemory) {
+ s = md->params[i].regoff;
+ d = LA_SIZE + (1 + i) * 8;
+
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(REG_ITMP1, REG_SP, d); /* high-bits are zero */
+ M_IST(s, REG_SP, d + 4);
+ break;
+ case TYPE_LNG:
+ M_LST(s, REG_SP, d);
+ break;
+ case TYPE_FLT:
+ M_IST(REG_ITMP1, REG_SP, d); /* high-bits are zero */
+ M_FST(s, REG_SP, d + 4);
+ break;
+ case TYPE_DBL:
+ M_DST(s, REG_SP, d);
+ break;
}
}
}
- /* load first 4 (==INT_ARG_CNT/2) arguments into integer registers */
-#if defined(__DARWIN__)
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- M_ILD(d, REG_SP, LA_SIZE + p * 4);
- }
-#else
- /* LINUX */
- /* Set integer and float argument registers vor trace_args call */
- /* offset to saved integer argument registers */
- stack_off = LA_SIZE + 4 * 8 + 4;
- for (p = 0; (p < 4) && (p < md->paramcount); p++) {
- t = md->paramtypes[p].type;
- if (IS_INT_LNG_TYPE(t)) {
- /* "stretch" int types */
- if (!IS_2_WORD_TYPE(t)) {
- M_CLR(rd->argintregs[2 * p]);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off);
- stack_off += 4;
- } else {
- M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off + 4);
- M_ILD(rd->argintregs[2 * p], REG_SP,stack_off);
- stack_off += 8;
- }
- } else { /* Float/Dbl */
- if (!md->params[p].inmemory) { /* Param in Arg Reg */
- /* use reserved Place on Stack (sp + 5 * 16) to copy */
- /* float/double arg reg to int reg */
- s1 = rd->argfltregs[md->params[p].regoff];
- if (!IS_2_WORD_TYPE(t)) {
- M_FST(s1, REG_SP, 5 * 16);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16);
- M_CLR(rd->argintregs[2 * p]);
- } else {
- M_DST(s1, REG_SP, 5 * 16);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16 + 4);
- M_ILD(rd->argintregs[2 * p], REG_SP, 5 * 16);
- }
- }
- }
+ /* load arguments as longs */
+
+ d = 0;
+
+ for (i = 0; i < md->paramcount && i < TRACE_ARGS_NUM; i++) {
+ s = LA_SIZE + (1 + i) * 8;
+ x = PACK_REGS(abi_registers_integer_argument[d + 1],
+ abi_registers_integer_argument[d]);
+
+ M_LLD(x, REG_SP, s);
+
+ d += 2;
}
-#endif
- /* put methodinfo pointer on Stackframe */
- p = dseg_add_address(cd, m);
- M_ALD(REG_ITMP1, REG_PV, p);
+ /* put methodinfo pointer as last argument on the stack */
+
+ disp = dseg_add_address(cd, m);
+ M_ALD(REG_ITMP1, REG_PV, disp);
#if defined(__DARWIN__)
M_AST(REG_ITMP1, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8);
#else
- M_AST(REG_ITMP1, REG_SP, LA_SIZE + 4 * 8);
+ M_AST(REG_ITMP1, REG_SP, LA_SIZE);
#endif
- p = dseg_add_functionptr(cd, builtin_trace_args);
- M_ALD(REG_ITMP2, REG_PV, p);
+ disp = dseg_add_functionptr(cd, builtin_verbosecall_enter);
+ M_ALD(REG_ITMP2, REG_PV, disp);
M_MTCTR(REG_ITMP2);
M_JSR;
-#if defined(__DARWIN__)
- /* restore integer argument registers from the reserved stack space */
-
- stack_off = LA_SIZE;
- for (p = 0; p < md->paramcount && p < TRACE_ARGS_NUM;
- p++, stack_off += 8) {
- t = md->paramtypes[p].type;
-
- if (IS_INT_LNG_TYPE(t)) {
- if (!md->params[p].inmemory) {
- if (IS_2_WORD_TYPE(t)) {
- M_ILD(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
- , REG_SP, stack_off);
- M_ILD(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
- , REG_SP, stack_off + 4);
- } else {
- M_ILD(rd->argintregs[md->params[p].regoff]
- , REG_SP, stack_off + 4);
- }
+ /* restore argument registers */
+
+ for (i = 0; i < md->paramcount; i++) {
+ if (!md->params[i].inmemory) {
+ s = LA_SIZE + (1 + i) * 8;
+ d = md->params[i].regoff;
+
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(d, REG_SP, s + 4); /* get low-bits */
+ break;
+ case TYPE_LNG:
+ M_LLD(d, REG_SP, s);
+ break;
+ case TYPE_FLT:
+ M_FLD(d, REG_SP, s + 4); /* get low-bits */
+ break;
+ case TYPE_DBL:
+ M_DLD(d, REG_SP, s);
+ break;
}
}
}
-#else
- /* LINUX */
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- /* save integer argument registers */
- M_ILD(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
- }
-#endif
- M_ALD(REG_ZERO, REG_SP, stack_size + LA_LR_OFFSET);
+ M_ALD(REG_ZERO, REG_SP, LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8 + LA_LR_OFFSET);
M_MTLR(REG_ZERO);
- M_LDA(REG_SP, REG_SP, stack_size);
+ M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8);
/* mark trace code */
M_NOP;
-}
#endif /* !defined(NDEBUG) */
+}
/* emit_verbosecall_exit *******************************************************
Generates the code for the call trace.
+ void builtin_verbosecall_exit(s8 l, double d, float f, methodinfo *m);
+
*******************************************************************************/
-#if !defined(NDEBUG)
void emit_verbosecall_exit(jitdata *jd)
{
+#if !defined(NDEBUG)
methodinfo *m;
codegendata *cd;
registerdata *rd;
methoddesc *md;
s4 disp;
+ if (!JITDATA_HAS_FLAG_VERBOSECALL(jd))
+ return;
+
/* get required compiler data */
m = jd->m;
switch (md->returntype.type) {
case TYPE_INT:
case TYPE_ADR:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT, rd->argintregs[2]);
- M_CLR(rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT, rd->argintregs[3]);
- M_CLR(rd->argintregs[2]);
-#endif
+ M_INTMOVE(REG_RESULT, REG_A1);
+ M_CLR(REG_A0);
break;
case TYPE_LNG:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT2, rd->argintregs[2]);
- M_MOV(REG_RESULT, rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT2, rd->argintregs[3]);
- M_MOV(REG_RESULT, rd->argintregs[2]);
-#endif
+ M_LNGMOVE(REG_RESULT_PACKED, REG_A0_A1_PACKED);
break;
}
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[0]);
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[1]);
+ M_FLTMOVE(REG_FRESULT, REG_FA0);
+ M_FLTMOVE(REG_FRESULT, REG_FA1);
disp = dseg_add_address(cd, m);
- M_ALD(rd->argintregs[0], REG_PV, disp);
+ M_ALD(REG_A2, REG_PV, disp);
- disp = dseg_add_functionptr(cd, builtin_displaymethodstop);
+ disp = dseg_add_functionptr(cd, builtin_verbosecall_exit);
M_ALD(REG_ITMP2, REG_PV, disp);
M_MTCTR(REG_ITMP2);
M_JSR;
/* mark trace code */
M_NOP;
-}
#endif /* !defined(NDEBUG) */
+}
/*
projects / cacao.git / blobdiff