#include "vm/jit/dseg.h"
#include "vm/jit/emit-common.h"
#include "vm/jit/jit.h"
+#include "vm/jit/abi.h"
#include "vm/jit/parse.h"
#include "vm/jit/patcher.h"
#include "vm/jit/reg.h"
/* METHOD INVOCATION *********************************************************/
case ICMD_BUILTIN: /* ..., [arg1, [arg2 ...]] ==> ... */
+ REPLACEMENT_POINT_FORGC_BUILTIN(cd, iptr);
+
bte = iptr->sx.s23.s3.bte;
md = bte->md;
goto gen_method;
} /* switch (iptr->opc) */
REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
+ REPLACEMENT_POINT_FORGC_BUILTIN_RETURN(cd, iptr);
/* store return value */
d = md->returntype.type;
M_JMP(REG_ATMP3);
}
+/* codegen_emit_stub_builtin ***************************************************
+
+ Creates a stub routine which calls a builtin function.
+
+*******************************************************************************/
+
+void codegen_emit_stub_builtin(jitdata *jd, builtintable_entry *bte)
+{
+ codeinfo *code;
+ codegendata *cd;
+ methoddesc *md;
+ s4 i;
+ s4 disp;
+ s4 s1, s2;
+
+ /* get required compiler data */
+ code = jd->code;
+ cd = jd->cd;
+
+ /* set some variables */
+ md = bte->md;
+
+ /* calculate stack frame size */
+ cd->stackframesize =
+ sizeof(stackframeinfo) / SIZEOF_VOID_P +
+ 4; /* 4 arguments or return value */
+
+ /* create method header */
+ (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
+ (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* 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 */
+ M_AADD_IMM(-(cd->stackframesize*4), REG_SP);
+
+#if defined(ENABLE_GC_CACAO)
+ /* Save callee saved integer registers in stackframeinfo (GC may
+ need to recover them during a collection). */
+
+ disp = cd->stackframesize * 4 - sizeof(stackframeinfo) +
+ OFFSET(stackframeinfo, adrregs);
+
+ for (i = 0; i < ADR_SAV_CNT; i++)
+ M_AST(abi_registers_address_saved[i], REG_SP, disp + i * 4);
+#endif
+
+ /* create dynamic stack info */
+
+ M_AMOV(REG_SP, REG_ATMP1);
+ M_AADD_IMM(cd->stackframesize * 4, REG_ATMP1);
+ M_AST(REG_ATMP1, REG_SP, 0 * 4); /* datasp */
+
+ M_AMOV_IMM(0, REG_ATMP1); /* we need pv patched in */
+ dseg_adddata(cd); /* this does the trick */
+ M_AST(REG_ATMP1, REG_SP, 1 * 4); /* pv */
+
+ M_AMOV(REG_SP, REG_ATMP1);
+ M_AADD_IMM(cd->stackframesize * 4 + SIZEOF_VOID_P, REG_ATMP1);
+ M_AST(REG_ATMP1, REG_SP, 2 * 4); /* sp */
+
+ M_ALD(REG_ATMP3, REG_SP, cd->stackframesize * 4);
+ M_AST(REG_ATMP3, REG_SP, 3 * 4); /* ra */
+
+ M_JSR_IMM(codegen_stub_builtin_enter);
+
+ /* builtins are allowed to have 4 arguments max */
+
+ assert(md->paramcount <= 4);
+
+ /* copy arguments into new stackframe */
+
+ for (i = 0; i < md->paramcount; i++) {
+ if (!md->params[i].inmemory) {
+ log_text("No integer argument registers available!");
+ assert(0);
+
+ } else { /* float/double in memory can be copied like int/longs */
+ s1 = md->params[i].regoff + cd->stackframesize * 4 + 4;
+ s2 = md->params[i].regoff;
+
+ M_ILD(REG_ITMP1, REG_SP, s1);
+ M_IST(REG_ITMP1, REG_SP, s2);
+ if (IS_2_WORD_TYPE(md->paramtypes[i].type)) {
+ M_ILD(REG_ITMP1, REG_SP, s1 + 4);
+ M_IST(REG_ITMP1, REG_SP, s2 + 4);
+ }
+
+ }
+ }
+
+ /* call the builtin function */
+
+ M_AMOV_IMM(bte->fp, REG_ATMP3);
+ M_JSR(REG_ATMP3);
+
+ /* save return value */
+ switch (md->returntype.type) {
+ case TYPE_VOID: break;
+
+ /* natives return float arguments in %d0, %d1, cacao expects them in %fp0 */
+ case TYPE_DBL:
+ case TYPE_LNG:
+ M_IST(REG_D1, REG_SP, 2 * 4);
+ /* fall through */
+
+ case TYPE_FLT:
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(REG_D0, REG_SP, 1 * 4);
+ break;
+
+ default: assert(0);
+ }
+
+ /* remove native stackframe info */
+
+ M_AMOV(REG_SP, REG_ATMP1);
+ M_AADD_IMM(cd->stackframesize * 4, REG_ATMP1);
+ M_AST(REG_ATMP1, REG_SP, 0 * 4);
+
+ M_JSR_IMM(codegen_stub_builtin_exit);
+
+ /* restore return value */
+ switch (md->returntype.type) {
+ case TYPE_VOID: break;
+
+ case TYPE_DBL:
+ case TYPE_LNG:
+ M_ILD(REG_D1, REG_SP, 2 * 4);
+ /* fall through */
+
+ case TYPE_FLT:
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(REG_D0, REG_SP, 1 * 4);
+ break;
+
+ default: assert(0);
+ }
+
+#if defined(ENABLE_GC_CACAO)
+ /* Restore callee saved integer registers from stackframeinfo (GC
+ might have modified them during a collection). */
+
+ disp = cd->stackframesize * 4 - sizeof(stackframeinfo) +
+ OFFSET(stackframeinfo, adrregs);
+
+ for (i = 0; i < ADR_SAV_CNT; i++)
+ M_ALD(abi_registers_address_saved[i], REG_SP, disp + i * 4);
+#endif
+
+ /* remove stackframe */
+ M_AADD_IMM(cd->stackframesize * 4, REG_SP);
+ M_RET;
+}
+
+
+
/* codegen_emit_stub_native ****************************************************
projects / cacao.git / blobdiff