Author: Nikita Popov Date: 2023-11-03T11:08:08+01:00 New Revision: c295d7407ef3e4c42157406c7e99f258636c2c9a
URL: https://github.com/llvm/llvm-project/commit/c295d7407ef3e4c42157406c7e99f258636c2c9a DIFF: https://github.com/llvm/llvm-project/commit/c295d7407ef3e4c42157406c7e99f258636c2c9a.diff LOG: [ConstantFold] Remove unnecessary checks in FoldBitCast() (NFCI) These are no-op casts, which are already handled earlier. Added: Modified: llvm/lib/IR/ConstantFold.cpp Removed: ################################################################################ diff --git a/llvm/lib/IR/ConstantFold.cpp b/llvm/lib/IR/ConstantFold.cpp index ada921bc2dea4db..4651767d0655a06 100644 --- a/llvm/lib/IR/ConstantFold.cpp +++ b/llvm/lib/IR/ConstantFold.cpp @@ -83,18 +83,8 @@ static Constant *FoldBitCast(Constant *V, Type *DestTy) { return nullptr; } - // Finally, implement bitcast folding now. The code below doesn't handle - // bitcast right. - if (isa<ConstantPointerNull>(V)) // ptr->ptr cast. - return ConstantPointerNull::get(cast<PointerType>(DestTy)); - // Handle integral constant input. if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) { - if (DestTy->isIntegerTy()) - // Integral -> Integral. This is a no-op because the bit widths must - // be the same. Consequently, we just fold to V. - return V; - // See note below regarding the PPC_FP128 restriction. if (DestTy->isFloatingPointTy() && !DestTy->isPPC_FP128Ty()) return ConstantFP::get(DestTy->getContext(), _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
