Author: Philip Reames Date: 2020-12-08T15:25:48-08:00 New Revision: 5171b7b40e9813e3fbfaf1e1e3372895c9ff6081
URL: https://github.com/llvm/llvm-project/commit/5171b7b40e9813e3fbfaf1e1e3372895c9ff6081 DIFF: https://github.com/llvm/llvm-project/commit/5171b7b40e9813e3fbfaf1e1e3372895c9ff6081.diff LOG: [indvars] Common a bit of code [NFC] Added: Modified: llvm/lib/Transforms/Utils/SimplifyIndVar.cpp Removed: ################################################################################ diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp index c02264aec600..189130f0e0ac 100644 --- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp @@ -1272,28 +1272,8 @@ Instruction *WidenIV::cloneArithmeticIVUser(WidenIV::NarrowIVDefUse DU, } // WideUse is "WideDef `op.wide` X" as described in the comment. - const SCEV *WideUse = nullptr; - - switch (NarrowUse->getOpcode()) { - default: - llvm_unreachable("No other possibility!"); - - case Instruction::Add: - WideUse = SE->getAddExpr(WideLHS, WideRHS); - break; - - case Instruction::Mul: - WideUse = SE->getMulExpr(WideLHS, WideRHS); - break; - - case Instruction::UDiv: - WideUse = SE->getUDivExpr(WideLHS, WideRHS); - break; - - case Instruction::Sub: - WideUse = SE->getMinusSCEV(WideLHS, WideRHS); - break; - } + const SCEV *WideUse = + getSCEVByOpCode(WideLHS, WideRHS, NarrowUse->getOpcode()); return WideUse == WideAR; }; @@ -1332,14 +1312,18 @@ WidenIV::ExtendKind WidenIV::getExtendKind(Instruction *I) { const SCEV *WidenIV::getSCEVByOpCode(const SCEV *LHS, const SCEV *RHS, unsigned OpCode) const { - if (OpCode == Instruction::Add) + switch (OpCode) { + case Instruction::Add: return SE->getAddExpr(LHS, RHS); - if (OpCode == Instruction::Sub) + case Instruction::Sub: return SE->getMinusSCEV(LHS, RHS); - if (OpCode == Instruction::Mul) + case Instruction::Mul: return SE->getMulExpr(LHS, RHS); - - llvm_unreachable("Unsupported opcode."); + case Instruction::UDiv: + return SE->getUDivExpr(LHS, RHS); + default: + llvm_unreachable("Unsupported opcode."); + }; } /// No-wrap operations can transfer sign extension of their result to their _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
