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x86/x64: Fix fusion of unsigned byte comparisons with swapped ops.

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This commit is contained in:
Mike Pall 2012-07-16 23:43:03 +02:00
parent e44cb53874
commit 08d8ec0648
1 changed files with 2 additions and 2 deletions
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4
src/lj_asm_x86.h
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@ -2067,8 +2067,8 @@ static void asm_comp(ASMState *as, IRIns *ir, uint32_t cc)
lua_assert(irt_is64(ir->t) || irt_isint(ir->t) || irt_isaddr(ir->t));
/* Swap constants (only for ABC) and fusable loads to the right. */
if (irref_isk(lref) || (!irref_isk(rref) && opisfusableload(leftop))) {
if ((cc & 0xc) == 0xc) cc ^= 3; /* L <-> G, LE <-> GE */
else if ((cc & 0xa) == 0x2) cc ^= 5; /* A <-> B, AE <-> BE */
if ((cc & 0xc) == 0xc) cc ^= 0x53; /* L <-> G, LE <-> GE */
else if ((cc & 0xa) == 0x2) cc ^= 0x55; /* A <-> B, AE <-> BE */
lref = ir->op2; rref = ir->op1;
}
if (asm_isk32(as, rref, &imm)) {