/* src/vm/jit/s390/emit.c - s390 code emitter functions
- Copyright (C) 1996-2005, 2006, 2007, 2008
+ Copyright (C) 1996-2005, 2006, 2007, 2008, 2010
CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
#include "vm/jit/s390/emit.h"
#include "vm/jit/s390/md-abi.h"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
-#include "threads/lock-common.h"
+#include "threads/lock.hpp"
-#include "vm/builtin.h"
+#include "vm/jit/builtin.hpp"
#include "vm/global.h"
#include "vm/types.h"
#include "vm/options.h"
#include "vm/jit/abi.h"
#include "vm/jit/abi-asm.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
-#include "vm/jit/patcher-common.h"
-#include "vm/jit/replace.h"
+#include "vm/jit/codegen-common.hpp"
+#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.h"
+#include "vm/jit/trap.hpp"
/* emit_load *******************************************************************
}
}
+
+/**
+ * Emits code updating the condition register by comparing one integer
+ * register to an immediate integer value.
+ */
+void emit_icmp_imm(codegendata* cd, int reg, int32_t value)
+{
+ int32_t disp;
+
+ if (N_VALID_IMM(value)) {
+ M_ICMP_IMM(reg, value);
+ } else {
+ disp = dseg_add_s4(cd, value);
+ if (N_VALID_DSEG_DISP(disp)) {
+ N_C(reg, N_DSEG_DISP(disp), RN, REG_PV);
+ } else {
+ assert(reg != REG_ITMP2);
+ ICONST(REG_ITMP2, disp);
+ N_C(reg, -N_PV_OFFSET, REG_ITMP2, REG_PV);
+ }
+ }
+}
+
+
/* emit_trap *******************************************************************
Emit a trap instruction and return the original machine code.
}
+/**
+ * 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_ASUB_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
+
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_IST(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
+
+ /* decide which monitor enter function to call */
+
+ if (m->flags & ACC_STATIC) {
+ 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(TRAP_NullPointerException);
+ }
+
+ disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
+ M_ALD_DSEG(REG_ITMP2, disp);
+
+ M_AST(REG_A0, REG_SP, syncslot_offset);
+
+ M_ASUB_IMM(96, REG_SP);
+ M_CALL(REG_ITMP2);
+ M_AADD_IMM(96, REG_SP);
+
+#if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_ILD(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_AADD_IMM((INT_ARG_CNT + FLT_ARG_CNT) * 8, REG_SP);
+ }
+#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;
+
+ /* we need to save the proper return value */
+
+ methoddesc* md = m->parseddesc;
+
+ switch (md->returntype.type) {
+ case TYPE_LNG:
+ M_IST(REG_RESULT2, REG_SP, syncslot_offset + 8 + 4);
+ /* fall through */
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_IST(REG_RESULT , REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_FLT:
+ M_FST(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ }
+
+ M_ALD(REG_A0, REG_SP, syncslot_offset);
+
+ disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
+ M_ALD_DSEG(REG_ITMP2, disp);
+
+ M_ASUB_IMM(96, REG_SP);
+ M_CALL(REG_ITMP2);
+ M_AADD_IMM(96, REG_SP);
+
+ /* and now restore the proper return value */
+
+ switch (md->returntype.type) {
+ case TYPE_LNG:
+ M_ILD(REG_RESULT2, REG_SP, syncslot_offset + 8 + 4);
+ /* fall through */
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(REG_RESULT , REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_FLT:
+ M_FLD(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, syncslot_offset + 8);
+ break;
+ }
+}
+#endif
+
+
+/**
+ * Emit profiling code for method frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_method(codegendata* cd, codeinfo* code)
+{
+ 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
+
+
+/**
+ * Emit profiling code for basicblock frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_basicblock(codegendata* cd, codeinfo* code, basicblock* bptr)
+{
+ M_ALD_DSEG(REG_ITMP1, CodeinfoPointer);
+ M_ALD(REG_ITMP1, REG_ITMP1, OFFSET(codeinfo, bbfrequency));
+ ICONST(REG_ITMP2, 1);
+ N_AL(REG_ITMP2, bptr->nr * 4, RN, REG_ITMP1);
+ M_IST(REG_ITMP2, REG_ITMP1, bptr->nr * 4);
+}
+#endif
+
+
+/**
+ * Emit profiling code to start CPU cycle counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_cycle_start(codegendata* cd, codeinfo* code)
+{
+ // XXX Not implemented yet!
+}
+#endif
+
+
+/**
+ * Emit profiling code to stop CPU cycle counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_cycle_stop(codegendata* cd, codeinfo* code)
+{
+ // XXX Not implemented yet!
+}
+#endif
+
+
/* emit_verbosecall_enter ******************************************************
Generates the code for the call trace.
}
}
-void emit_restore_pv(codegendata *cd) {
+void emit_recompute_pv(codegendata *cd) {
s4 offset, offset_imm;
/*
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