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Fix folding of (comparison x x).

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Mike Pall 2010-03-14 17:10:47 +01:00
parent 16f33422f1
commit a25a717089
1 changed files with 1 additions and 1 deletions
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2
src/lj_opt_fold.c
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@ -1020,7 +1020,7 @@ LJFOLDF(comm_comp)
{ {
/* For non-numbers only: x <=> x ==> drop; x <> x ==> fail */ /* For non-numbers only: x <=> x ==> drop; x <> x ==> fail */
if (fins->op1 == fins->op2 && !irt_isnum(fins->t)) if (fins->op1 == fins->op2 && !irt_isnum(fins->t))
return CONDFOLD(fins->o & 1); return CONDFOLD((fins->o ^ (fins->o >> 1)) & 1);
if (fins->op1 < fins->op2) { /* Move lower ref to the right. */ if (fins->op1 < fins->op2) { /* Move lower ref to the right. */
IRRef1 tmp = fins->op1; IRRef1 tmp = fins->op1;
fins->op1 = fins->op2; fins->op1 = fins->op2;