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Eliminate a broken transformation, fixing PR548

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-04-19 06:04:18 +00:00
parent f577c6122f
commit 240d6f4c9d
1 changed files with 2 additions and 4 deletions
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6
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -1935,10 +1935,8 @@ Instruction *InstCombiner::visitOr(BinaryOperator &I) {
}
break; // (X == 13 | X == 15) -> no change
case Instruction::SetGT:
if (LHSCst == SubOne(RHSCst)) // (X == 13 | X > 14) -> X > 13
return new SetCondInst(Instruction::SetGT, LHSVal, LHSCst);
break; // (X == 13 | X > 15) -> no change
case Instruction::SetGT: // (X == 13 | X > 14) -> no change
break;
case Instruction::SetNE: // (X == 13 | X != 15) -> X != 15
case Instruction::SetLT: // (X == 13 | X < 15) -> X < 15
return ReplaceInstUsesWith(I, RHS);