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FFI: Fix recording of bool call result check on x86/x64.

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This commit is contained in:
Mike Pall
2012-11-06 17:05:37 +01:00
parent 8a1a6097be
commit 4e5ef81b86
3 changed files with 9 additions and 2 deletions
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4
src/lj_asm_x86.h
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@@ -1815,7 +1815,7 @@ static void asm_intarith(ASMState *as, IRIns *ir, x86Arith xa)
int32_t k = 0;
if (as->flagmcp == as->mcp) { /* Drop test r,r instruction. */
as->flagmcp = NULL;
as->mcp += (LJ_64 && *as->mcp != XI_TEST) ? 3 : 2;
as->mcp += (LJ_64 && *as->mcp < XI_TESTb) ? 3 : 2;
}
right = IR(rref)->r;
if (ra_hasreg(right)) {
@@ -2151,7 +2151,7 @@ static void asm_comp(ASMState *as, IRIns *ir, uint32_t cc)
asm_guardcc(as, cc);
if (usetest && left != RID_MRM) {
/* Use test r,r instead of cmp r,0. */
emit_rr(as, XO_TEST, r64 + left, left);
emit_rr(as, irt_isu8(ir->t) ? XO_TESTb : XO_TEST, r64 + left, left);
if (irl+1 == ir) /* Referencing previous ins? */
as->flagmcp = as->mcp; /* Set flag to drop test r,r if possible. */
} else {