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Disentangle target-specific parts of JIT assembler backend.

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This commit is contained in:
Mike Pall
2011-05-12 01:27:20 +02:00
parent b79cdba3a0
commit 800349387a
2 changed files with 194 additions and 155 deletions
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6
src/lj_target_x86.h
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@@ -21,6 +21,8 @@
#define FPRDEF(_) \
_(XMM0) _(XMM1) _(XMM2) _(XMM3) _(XMM4) _(XMM5) _(XMM6) _(XMM7)
#endif
#define VRIDDEF(_) \
_(MRM)
#define RIDENUM(name) RID_##name,
@@ -63,6 +65,7 @@ enum {
#define RSET_GPR (RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR)-RID2RSET(RID_ESP))
#define RSET_FPR (RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR))
#define RSET_ALL (RSET_GPR|RSET_FPR)
#define RSET_INIT RSET_ALL
#if LJ_64
/* Note: this requires the use of FORCE_REX! */
@@ -80,6 +83,7 @@ enum {
(RSET_ACD|RSET_RANGE(RID_R8D, RID_R11D+1)|RSET_RANGE(RID_XMM0, RID_XMM5+1))
#define REGARG_GPRS \
(RID_ECX|((RID_EDX|((RID_R8D|(RID_R9D<<5))<<5))<<5))
#define REGARG_NUMGPR 4
#define REGARG_FIRSTFPR RID_XMM0
#define REGARG_LASTFPR RID_XMM3
#define STACKARG_OFS (4*8)
@@ -90,6 +94,7 @@ enum {
#define REGARG_GPRS \
(RID_EDI|((RID_ESI|((RID_EDX|((RID_ECX|((RID_R8D|(RID_R9D \
<<5))<<5))<<5))<<5))<<5))
#define REGARG_NUMGPR 6
#define REGARG_FIRSTFPR RID_XMM0
#define REGARG_LASTFPR RID_XMM7
#define STACKARG_OFS 0
@@ -98,6 +103,7 @@ enum {
/* Common x86 ABI. */
#define RSET_SCRATCH (RSET_ACD|RSET_FPR)
#define REGARG_GPRS (RID_ECX|(RID_EDX<<5)) /* Fastcall only. */
#define REGARG_NUMGPR 2 /* Fastcall only. */
#define STACKARG_OFS 0
#endif