/* src/vm/jit/alpha/emit.c - Alpha code emitter functions
- 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 "vm/jit/alpha/codegen.h"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
-#include "threads/lock-common.h"
+#include "threads/lock.hpp"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/options.h"
#include "vm/jit/abi.h"
#include "vm/jit/abi-asm.h"
#include "vm/jit/asmpart.h"
#include "vm/jit/dseg.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
-#include "vm/jit/patcher-common.h"
-#include "vm/jit/replace.h"
-
-#include "vmcore/options.h"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/jit.hpp"
+#include "vm/jit/patcher-common.hpp"
+#include "vm/jit/replace.hpp"
+#include "vm/jit/trace.hpp"
+#include "vm/jit/trap.hpp"
/* emit_load *******************************************************************
}
+/**
+ * Emits code comparing one integer register to an immediate value.
+ */
+void emit_icmpeq_imm(codegendata* cd, int reg, int32_t value, int d)
+{
+ int32_t disp;
+
+ if ((value >= 0) && (value <= 255)) {
+ M_CMPEQ_IMM(reg, value, d);
+ } else {
+ assert(reg != REG_ITMP2);
+ if ((value >= -32768) && (value <= 32767)) {
+ M_LDA(REG_ITMP2, REG_ZERO, value);
+ } else {
+ disp = dseg_add_s4(cd, value);
+ M_ILD(REG_ITMP2, REG_PV, disp);
+ }
+ M_CMPEQ(reg, REG_ITMP2, d);
+ }
+}
+
+
/* emit_branch *****************************************************************
Emits the code for conditional and unconditional branchs.
M_BNEZ(reg, 1);
/* Destination register must not be REG_ZERO, because then no
SIGSEGV is thrown. */
- M_ALD_INTERN(reg, REG_ZERO, EXCEPTION_HARDWARE_ARITHMETIC);
+ M_ALD_INTERN(reg, REG_ZERO, TRAP_ArithmeticException);
}
}
M_ILD(REG_ITMP3, s1, OFFSET(java_array_t, size));
M_CMPULT(s2, REG_ITMP3, REG_ITMP3);
M_BNEZ(REG_ITMP3, 1);
- M_ALD_INTERN(s2, REG_ZERO, EXCEPTION_HARDWARE_ARRAYINDEXOUTOFBOUNDS);
+ M_ALD_INTERN(s2, REG_ZERO, TRAP_ArrayIndexOutOfBoundsException);
}
}
M_BNEZ(REG_RESULT, 1);
/* Destination register must not be REG_ZERO, because then no
SIGSEGV is thrown. */
- M_ALD_INTERN(REG_RESULT, REG_ZERO, EXCEPTION_HARDWARE_ARRAYSTORE);
+ M_ALD_INTERN(REG_RESULT, REG_ZERO, TRAP_ArrayStoreException);
}
}
default:
vm_abort("emit_classcast_check: unknown condition %d", condition);
}
- M_ALD_INTERN(s1, REG_ZERO, EXCEPTION_HARDWARE_CLASSCAST);
+ M_ALD_INTERN(s1, REG_ZERO, TRAP_ClassCastException);
}
}
M_BNEZ(reg, 1);
/* Destination register must not be REG_ZERO, because then no
SIGSEGV is thrown. */
- M_ALD_INTERN(reg, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
+ M_ALD_INTERN(reg, REG_ZERO, TRAP_NullPointerException);
}
}
M_BNEZ(REG_RESULT, 1);
/* Destination register must not be REG_ZERO, because then no
SIGSEGV is thrown. */
- M_ALD_INTERN(REG_RESULT, REG_ZERO, EXCEPTION_HARDWARE_EXCEPTION);
+ M_ALD_INTERN(REG_RESULT, REG_ZERO, TRAP_CHECK_EXCEPTION);
}
}
+/* emit_trap_compiler **********************************************************
+
+ Emit a trap instruction which calls the JIT compiler.
+
+*******************************************************************************/
+
+void emit_trap_compiler(codegendata *cd)
+{
+ M_ALD_INTERN(REG_METHODPTR, REG_ZERO, TRAP_COMPILER);
+}
+
+
/* emit_trap *******************************************************************
Emit a trap instruction and return the original machine code.
/* Get machine code which is patched back in later. The
trap is 1 instruction word long. */
- mcode = *((u4 *) cd->mcodeptr);
+ mcode = *((uint32_t*) cd->mcodeptr);
- /* Destination register must not be REG_ZERO, because then no
- SIGSEGV is thrown. */
- M_ALD_INTERN(REG_RESULT, REG_ZERO, EXCEPTION_HARDWARE_PATCHER);
+ // Generate a SIGILL.
+ M_UNDEFINED;
return mcode;
}
+/**
+ * Emit code to recompute the procedure vector.
+ */
+void emit_recompute_pv(codegendata *cd)
+{
+ int32_t disp = (int32_t) (cd->mcodeptr - cd->mcodebase);
+
+ M_LDA(REG_PV, REG_RA, -disp);
+}
+
+
+/**
+ * Generates synchronization code to enter a monitor.
+ */
+#if defined(ENABLE_THREADS)
+void emit_monitor_enter(jitdata* jd, int32_t syncslot_offset)
+{
+ int32_t p;
+ int32_t disp;
+
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+
+#if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ M_LDA(REG_SP, REG_SP, -(INT_ARG_CNT + FLT_ARG_CNT) * 8);
+
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_LST(abi_registers_integer_argument[p], REG_SP, p * 8);
+
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DST(abi_registers_float_argument[p], REG_SP, (INT_ARG_CNT + p) * 8);
+
+ syncslot_offset += (INT_ARG_CNT + FLT_ARG_CNT) * 8;
+ }
+#endif /* !defined(NDEBUG) */
+
+ /* decide which monitor enter function to call */
+
+ if (m->flags & ACC_STATIC) {
+ disp = dseg_add_address(cd, &m->clazz->object.header);
+ M_ALD(REG_A0, REG_PV, disp);
+ }
+ else {
+ M_BNEZ(REG_A0, 1);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_NullPointerException);
+ }
+
+ M_AST(REG_A0, REG_SP, syncslot_offset);
+ disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
+ M_ALD(REG_PV, REG_PV, disp);
+ M_JSR(REG_RA, REG_PV);
+ emit_recompute_pv(cd);
+
+#if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_LLD(abi_registers_integer_argument[p], REG_SP, p * 8);
+
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DLD(abi_registers_float_argument[p], REG_SP, (INT_ARG_CNT + p) * 8);
+
+ M_LDA(REG_SP, REG_SP, (INT_ARG_CNT + FLT_ARG_CNT) * 8);
+ }
+#endif
+}
+#endif
+
+
+/**
+ * Generates synchronization code to leave a monitor.
+ */
+#if defined(ENABLE_THREADS)
+void emit_monitor_exit(jitdata* jd, int32_t syncslot_offset)
+{
+ int32_t disp;
+
+ // Get required compiler data.
+ methodinfo* m = jd->m;
+ codegendata* cd = jd->cd;
+
+ M_ALD(REG_A0, REG_SP, syncslot_offset);
+
+ methoddesc* md = m->parseddesc;
+
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ M_LST(REG_RESULT, REG_SP, syncslot_offset);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, syncslot_offset);
+ break;
+ }
+
+ disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
+ M_ALD(REG_PV, REG_PV, disp);
+ M_JSR(REG_RA, REG_PV);
+ emit_recompute_pv(cd);
+
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_LNG:
+ case TYPE_ADR:
+ M_LLD(REG_RESULT, REG_SP, syncslot_offset);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, syncslot_offset);
+ break;
+ }
+}
+#endif
+
+
/* emit_verbosecall_enter ******************************************************
Generates the code for the call trace.
void emit_verbosecall_enter(jitdata *jd)
{
methodinfo *m;
+ codeinfo *code;
codegendata *cd;
registerdata *rd;
methoddesc *md;
+ int32_t stackframesize;
s4 disp;
- s4 i, t;
+ s4 i, j, s;
/* get required compiler data */
- m = jd->m;
- cd = jd->cd;
- rd = jd->rd;
+ m = jd->m;
+ code = jd->code;
+ cd = jd->cd;
+ rd = jd->rd;
md = m->parseddesc;
M_NOP;
- M_LDA(REG_SP, REG_SP, -((ARG_CNT + TMP_CNT + 2) * 8));
- M_AST(REG_RA, REG_SP, 1 * 8);
+ stackframesize = ARG_CNT + TMP_CNT + md->paramcount + 1;
- /* save argument registers */
+ M_LDA(REG_SP, REG_SP, -(stackframesize * 8));
+ M_AST(REG_RA, REG_SP, 0 * 8);
+
+ /* save all argument and temporary registers for leaf methods */
- for (i = 0; i < INT_ARG_CNT; i++)
- M_LST(abi_registers_integer_argument[i], REG_SP, (2 + i) * 8);
+ if (code_is_leafmethod(code)) {
+ j = 1 + md->paramcount;
- for (i = 0; i < FLT_ARG_CNT; i++)
- M_DST(abi_registers_float_argument[i], REG_SP, (2 + INT_ARG_CNT + i) * 8);
+ for (i = 0; i < INT_ARG_CNT; i++, j++)
+ M_LST(abi_registers_integer_argument[i], REG_SP, j * 8);
- /* save temporary registers for leaf methods */
+ for (i = 0; i < FLT_ARG_CNT; i++, j++)
+ M_DST(abi_registers_float_argument[i], REG_SP, j * 8);
- if (jd->isleafmethod) {
- for (i = 0; i < INT_TMP_CNT; i++)
- M_LST(rd->tmpintregs[i], REG_SP, (2 + ARG_CNT + i) * 8);
+ for (i = 0; i < INT_TMP_CNT; i++, j++)
+ M_LST(rd->tmpintregs[i], REG_SP, j * 8);
- for (i = 0; i < FLT_TMP_CNT; i++)
- M_DST(rd->tmpfltregs[i], REG_SP, (2 + ARG_CNT + INT_TMP_CNT + i) * 8);
+ for (i = 0; i < FLT_TMP_CNT; i++, j++)
+ M_DST(rd->tmpfltregs[i], REG_SP, j * 8);
}
- /* load float arguments into integer registers */
+ /* save argument registers */
- for (i = 0; i < md->paramcount && i < INT_ARG_CNT; i++) {
- t = md->paramtypes[i].type;
+ for (i = 0; i < md->paramcount; i++) {
+ if (!md->params[i].inmemory) {
+ s = md->params[i].regoff;
- if (IS_FLT_DBL_TYPE(t)) {
- if (IS_2_WORD_TYPE(t)) {
- M_DST(abi_registers_float_argument[i], REG_SP, 0 * 8);
- M_LLD(abi_registers_integer_argument[i], REG_SP, 0 * 8);
- }
- else {
- M_FST(abi_registers_float_argument[i], REG_SP, 0 * 8);
- M_ILD(abi_registers_integer_argument[i], REG_SP, 0 * 8);
+ switch (md->paramtypes[i].type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ case TYPE_LNG:
+ M_LST(s, REG_SP, (1 + i) * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(s, REG_SP, (1 + i) * 8);
+ break;
}
}
}
disp = dseg_add_address(cd, m);
- M_ALD(REG_ITMP1, REG_PV, disp);
- M_AST(REG_ITMP1, REG_SP, 0 * 8);
- disp = dseg_add_functionptr(cd, builtin_verbosecall_enter);
+ M_ALD(REG_A0, REG_PV, disp);
+ M_AADD_IMM(REG_SP, 1 * 8, REG_A1);
+ M_LDA(REG_A2, REG_SP, stackframesize * 8 + cd->stackframesize * 8);
+
+ disp = dseg_add_functionptr(cd, trace_java_call_enter);
M_ALD(REG_PV, REG_PV, disp);
M_JSR(REG_RA, REG_PV);
disp = (s4) (cd->mcodeptr - cd->mcodebase);
M_LDA(REG_PV, REG_RA, -disp);
- M_ALD(REG_RA, REG_SP, 1 * 8);
+ M_ALD(REG_RA, REG_SP, 0 * 8);
/* restore argument registers */
- for (i = 0; i < INT_ARG_CNT; i++)
- M_LLD(abi_registers_integer_argument[i], REG_SP, (2 + i) * 8);
+ for (i = 0; i < md->paramcount; i++) {
+ if (!md->params[i].inmemory) {
+ s = md->params[i].regoff;
+
+ switch (md->paramtypes[i].type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ case TYPE_LNG:
+ M_LLD(s, REG_SP, (1 + i) * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(s, REG_SP, (1 + i) * 8);
+ break;
+ }
+ }
+ }
+
+ /* restore all argument and temporary registers for leaf methods */
+
+ if (code_is_leafmethod(code)) {
+ j = 1 + md->paramcount;
- for (i = 0; i < FLT_ARG_CNT; i++)
- M_DLD(abi_registers_float_argument[i], REG_SP, (2 + INT_ARG_CNT + i) * 8);
+ for (i = 0; i < INT_ARG_CNT; i++, j++)
+ M_LLD(abi_registers_integer_argument[i], REG_SP, j * 8);
- /* restore temporary registers for leaf methods */
+ for (i = 0; i < FLT_ARG_CNT; i++, j++)
+ M_DLD(abi_registers_float_argument[i], REG_SP, j * 8);
- if (jd->isleafmethod) {
- for (i = 0; i < INT_TMP_CNT; i++)
- M_LLD(rd->tmpintregs[i], REG_SP, (2 + ARG_CNT + i) * 8);
+ for (i = 0; i < INT_TMP_CNT; i++, j++)
+ M_LLD(rd->tmpintregs[i], REG_SP, j * 8);
- for (i = 0; i < FLT_TMP_CNT; i++)
- M_DLD(rd->tmpfltregs[i], REG_SP, (2 + ARG_CNT + INT_TMP_CNT + i) * 8);
+ for (i = 0; i < FLT_TMP_CNT; i++, j++)
+ M_DLD(rd->tmpfltregs[i], REG_SP, j * 8);
}
- M_LDA(REG_SP, REG_SP, (ARG_CNT + TMP_CNT + 2) * 8);
+ M_LDA(REG_SP, REG_SP, stackframesize * 8);
/* mark trace code */
Generates the code for the call trace.
- void builtin_verbosecall_exit(s8 l, double d, float f, methodinfo *m);
-
*******************************************************************************/
#if !defined(NDEBUG)
methodinfo *m;
codegendata *cd;
registerdata *rd;
+ methoddesc *md;
s4 disp;
/* get required compiler data */
cd = jd->cd;
rd = jd->rd;
+ md = m->parseddesc;
+
/* mark trace code */
M_NOP;
- M_ASUB_IMM(REG_SP, 4 * 8, REG_SP);
+ M_ASUB_IMM(REG_SP, 2 * 8, REG_SP);
M_AST(REG_RA, REG_SP, 0 * 8);
- M_LST(REG_RESULT, REG_SP, 1 * 8);
- M_DST(REG_FRESULT, REG_SP, 2 * 8);
-
- M_MOV(REG_RESULT, REG_A0);
- M_FMOV(REG_FRESULT, REG_FA1);
- M_FMOV(REG_FRESULT, REG_FA2);
+ /* save return value */
+
+ switch (md->returntype.type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ case TYPE_LNG:
+ M_LST(REG_RESULT, REG_SP, 1 * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, 1 * 8);
+ break;
+ }
disp = dseg_add_address(cd, m);
- M_ALD(REG_A3, REG_PV, disp);
+ M_ALD(REG_A0, REG_PV, disp);
+ M_AADD_IMM(REG_SP, 1 * 8, REG_A1);
- disp = dseg_add_functionptr(cd, builtin_verbosecall_exit);
+ disp = dseg_add_functionptr(cd, trace_java_call_exit);
M_ALD(REG_PV, REG_PV, disp);
M_JSR(REG_RA, REG_PV);
disp = (cd->mcodeptr - cd->mcodebase);
M_LDA(REG_PV, REG_RA, -disp);
- M_DLD(REG_FRESULT, REG_SP, 2 * 8);
- M_LLD(REG_RESULT, REG_SP, 1 * 8);
+ /* restore return value */
+
+ switch (md->returntype.type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ case TYPE_LNG:
+ M_LLD(REG_RESULT, REG_SP, 1 * 8);
+ break;
+ case TYPE_FLT:
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, 1 * 8);
+ break;
+ }
M_ALD(REG_RA, REG_SP, 0 * 8);
- M_AADD_IMM(REG_SP, 4 * 8, REG_SP);
+ M_AADD_IMM(REG_SP, 2 * 8, REG_SP);
/* mark trace code */
projects / cacao.git / blobdiff