diff options
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCasts.cpp')
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineCasts.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp index 119d2f5c99..1807bea235 100644 --- a/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -238,16 +238,20 @@ isEliminableCastPair( // Get the opcodes of the two Cast instructions Instruction::CastOps firstOp = Instruction::CastOps(CI->getOpcode()); Instruction::CastOps secondOp = Instruction::CastOps(opcode); + Type *SrcIntPtrTy = TD && SrcTy->isPtrOrPtrVectorTy() ? + TD->getIntPtrType(SrcTy) : 0; + Type *MidIntPtrTy = TD && MidTy->isPtrOrPtrVectorTy() ? + TD->getIntPtrType(MidTy) : 0; + Type *DstIntPtrTy = TD && DstTy->isPtrOrPtrVectorTy() ? + TD->getIntPtrType(DstTy) : 0; unsigned Res = CastInst::isEliminableCastPair(firstOp, secondOp, SrcTy, MidTy, - DstTy, - TD ? TD->getIntPtrType(DstTy) : 0); + DstTy, SrcIntPtrTy, MidIntPtrTy, + DstIntPtrTy); // We don't want to form an inttoptr or ptrtoint that converts to an integer // type that differs from the pointer size. - if ((Res == Instruction::IntToPtr && - (!TD || SrcTy != TD->getIntPtrType(DstTy))) || - (Res == Instruction::PtrToInt && - (!TD || DstTy != TD->getIntPtrType(SrcTy)))) + if ((Res == Instruction::IntToPtr && SrcTy != DstIntPtrTy) || + (Res == Instruction::PtrToInt && DstTy != SrcIntPtrTy)) Res = 0; return Instruction::CastOps(Res); |