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x86/x64: Fix fusion of comparisons with u8/u16 XLOAD.

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Mike Pall 2011-06-22 17:55:43 +02:00
parent b6e4ffd079
commit e2246db688
1 changed files with 2 additions and 0 deletions
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2
src/lj_asm_x86.h
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@ -2037,6 +2037,8 @@ static void asm_comp(ASMState *as, IRIns *ir, uint32_t cc)
left = asm_fuseload(as, lref, RSET_GPR);
irl->t = origt;
if (left == RID_MRM) { /* Fusion succeeded? */
if (irt_isu8(irl->t) || irt_isu16(irl->t))
cc >>= 4; /* Need unsigned compare. */
asm_guardcc(as, cc);
emit_i8(as, imm);
emit_mrm(as, (irt_isi8(origt) || irt_isu8(origt)) ?