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Refactoring of conversion ops, part 4: use CONV instead of TOINT/TONUM.

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Also narrow CONV.int.num and CONV.i64.num.
This commit is contained in:
Mike Pall
2010-12-31 03:56:30 +01:00
parent 1f26961092
commit 1716540c55
8 changed files with 89 additions and 61 deletions
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4
src/lj_ir.h
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@@ -222,9 +222,12 @@ IRFLDEF(FLENUM)
/* CONV mode, stored in op2. */
#define IRCONV_SRCMASK 0x001f /* Source IRType. */
#define IRCONV_DSTMASK 0x03e0 /* Dest. IRType (also in ir->t). */
#define IRCONV_NUM_INT ((IRT_NUM<<5)|IRT_INT)
#define IRCONV_INT_NUM ((IRT_INT<<5)|IRT_NUM)
#define IRCONV_TRUNC 0x0400 /* Truncate number to integer. */
#define IRCONV_SEXT 0x0800 /* Sign-extend integer to integer. */
#define IRCONV_MODEMASK 0x0fff
#define IRCONV_CONVMASK 0xf000
#define IRCONV_CSH 12
/* Number to integer conversion mode. Ordered by strength of the checks. */
#define IRCONV_TOBIT (0<<IRCONV_CSH) /* None. Cache only: TOBIT conv. */
@@ -232,6 +235,7 @@ IRFLDEF(FLENUM)
#define IRCONV_INDEX (2<<IRCONV_CSH) /* Check + special backprop rules. */
#define IRCONV_CHECK (3<<IRCONV_CSH) /* Number checked for integerness. */
/* C call info for CALL* instructions. */
typedef struct CCallInfo {
ASMFunction func; /* Function pointer. */