/* src/vm/jit/x86_64/codegen.h - code generation macros for x86_64
- Copyright (C) 1996-2005, 2006, 2007, 2008
+ Copyright (C) 1996-2011
CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
#define ALIGNCODENOP \
do { \
- for (s1 = 0; s1 < (s4) (((ptrint) cd->mcodeptr) & 7); s1++) \
- M_NOP; \
+ int len = (-(ptrint) cd->mcodeptr) & 7; \
+ if (len) \
+ emit_nop(cd, len); \
} while (0)
-/* M_INTMOVE:
- generates an integer-move from register a to b.
- if a and b are the same int-register, no code will be generated.
-*/
-
-#define M_INTMOVE(reg,dreg) \
- do { \
- if ((reg) != (dreg)) { \
- M_MOV(reg, dreg); \
- } \
- } while (0)
-
-
-/* M_FLTMOVE:
- generates a floating-point-move from register a to b.
- if a and b are the same float-register, no code will be generated
-*/
-
-#define M_FLTMOVE(reg,dreg) \
- do { \
- if ((reg) != (dreg)) { \
- M_FMOV(reg, dreg); \
- } \
- } while (0)
+#define PATCH_ALIGNMENT(addr, offset, size) \
+ ((((addr)+(offset)+(size)-1) & ~((size)-1)) - ((addr)+(offset)))
#define ICONST(r,c) \
#define BRANCH_UNCONDITIONAL_SIZE 5 /* size in bytes of a branch */
#define BRANCH_CONDITIONAL_SIZE 6 /* size in bytes of a branch */
+/* These NOPs are never executed; they are only used as placeholders during
+ * code generation.
+ */
#define BRANCH_NOPS \
do { \
M_NOP; \
#define PATCHER_NOPS \
do { \
- M_NOP; \
- M_NOP; \
+ emit_nop(cd, 2); \
} while (0)
#define M_IMOV_IMM(a,b) emit_movl_imm_reg(cd, (u4) (a), (b))
#define M_FMOV(a,b) emit_movq_reg_reg(cd, (a), (b))
+#define M_DMOV(a,b) M_FMOV(a,b)
#define M_ILD(a,b,disp) emit_movl_membase_reg(cd, (b), (disp), (a))
#define M_LLD(a,b,disp) emit_mov_membase_reg(cd, (b), (disp), (a))
} while (0)
#define M_ALD32(a,b,disp) M_LLD32(a,b,disp)
+#define M_ALD_DSEG(a,disp) M_ALD(a,RIP,disp)
#define M_ALD_MEM(a,disp) emit_mov_mem_reg(cd, (disp), (a))
#define M_ICMP_MEMBASE(a,b,c) emit_alul_membase_reg(cd, ALU_CMP, (a), (b), (c))
#define M_ICMP_MEMINDEX(a,b,c,d,e) emit_alu_memindex_reg(cd, ALU_CMP, (b), (a), (c), (d), (e))
+#define M_ACMP(a,b) M_LCMP(a,b)
+
#define M_BEQ(disp) emit_jcc(cd, CC_E, (disp))
#define M_BNE(disp) emit_jcc(cd, CC_NE, (disp))
#define M_BLT(disp) emit_jcc(cd, CC_L, (disp))
/* system instructions ********************************************************/
+#define M_MFENCE emit_mfence(cd)
#define M_RDTSC emit_rdtsc(cd)
#define M_IINC_MEMBASE(a,b) emit_incl_membase(cd, (a), (b))
#define M_ISBB_MEMBASE(a,b,c) emit_alul_reg_membase(cd, ALU_SBB, (a), (b), (c))
-#if defined(ENABLE_PROFILING)
-
-#define PROFILE_CYCLE_START \
- do { \
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) { \
- M_PUSH(RAX); \
- M_PUSH(RDX); \
- \
- M_MOV_IMM(code, REG_ITMP3); \
- M_RDTSC; \
- M_ISUB_MEMBASE(RAX, REG_ITMP3, OFFSET(codeinfo, cycles)); \
- M_ISBB_MEMBASE(RDX, REG_ITMP3, OFFSET(codeinfo, cycles) + 4); \
- \
- M_POP(RDX); \
- M_POP(RAX); \
- } \
- } while (0)
-
-#define PROFILE_CYCLE_STOP \
- do { \
- if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) { \
- M_PUSH(RAX); \
- M_PUSH(RDX); \
- \
- M_MOV_IMM(code, REG_ITMP3); \
- M_RDTSC; \
- M_IADD_MEMBASE(RAX, REG_ITMP3, OFFSET(codeinfo, cycles)); \
- M_IADC_MEMBASE(RDX, REG_ITMP3, OFFSET(codeinfo, cycles) + 4); \
- \
- M_POP(RDX); \
- M_POP(RAX); \
- } \
- } while (0)
-
-#else
-
-#define PROFILE_CYCLE_START
-#define PROFILE_CYCLE_STOP
-
-#endif
-
#endif /* _CODEGEN_H */
* c-basic-offset: 4
* tab-width: 4
* End:
+ * vim:noexpandtab:sw=4:ts=4:
*/