diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/VMCore/Instructions.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/VMCore/Instructions.cpp b/lib/VMCore/Instructions.cpp index a32cb3c871..381b85faa4 100644 --- a/lib/VMCore/Instructions.cpp +++ b/lib/VMCore/Instructions.cpp @@ -2006,6 +2006,14 @@ unsigned CastInst::isEliminableCastPair( { 99,99,99,99,99,99,99,99,99,13,99,12 }, // IntToPtr | { 5, 5, 5, 6, 6, 5, 5, 6, 6,11, 5, 1 }, // BitCast -+ }; + + // If either of the casts are a bitcast from scalar to vector, disallow the + // merging. + if ((firstOp == Instruction::BitCast && + isa<VectorType>(SrcTy) != isa<VectorType>(MidTy)) || + (secondOp == Instruction::BitCast && + isa<VectorType>(MidTy) != isa<VectorType>(DstTy))) + return 0; // Disallowed int ElimCase = CastResults[firstOp-Instruction::CastOpsBegin] [secondOp-Instruction::CastOpsBegin]; |