From d7cb600514a1d85e88ae873633bb42357babbc68 Mon Sep 17 00:00:00 2001 From: Meador Inge Date: Sun, 11 Nov 2012 06:22:40 +0000 Subject: instcombine: Migrate memmove optimizations This patch migrates the memmove optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167687 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/SimplifyLibCalls.cpp | 25 +------------------------ 1 file changed, 1 insertion(+), 24 deletions(-) (limited to 'lib/Transforms/Scalar') diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index f63b679..40dce65 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -105,28 +105,6 @@ static bool CallHasFloatingPointArgument(const CallInst *CI) { namespace { //===---------------------------------------===// -// 'memmove' Optimizations - -struct MemMoveOpt : public LibCallOptimization { - virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - // These optimizations require DataLayout. - if (!TD) return 0; - - FunctionType *FT = Callee->getFunctionType(); - if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || - !FT->getParamType(0)->isPointerTy() || - !FT->getParamType(1)->isPointerTy() || - FT->getParamType(2) != TD->getIntPtrType(*Context)) - return 0; - - // memmove(x, y, n) -> llvm.memmove(x, y, n, 1) - B.CreateMemMove(CI->getArgOperand(0), CI->getArgOperand(1), - CI->getArgOperand(2), 1); - return CI->getArgOperand(0); - } -}; - -//===---------------------------------------===// // 'memset' Optimizations struct MemSetOpt : public LibCallOptimization { @@ -817,7 +795,7 @@ namespace { StringMap Optimizations; // Memory LibCall Optimizations - MemMoveOpt MemMove; MemSetOpt MemSet; + MemSetOpt MemSet; // Math Library Optimizations CosOpt Cos; PowOpt Pow; Exp2Opt Exp2; UnaryDoubleFPOpt UnaryDoubleFP, UnsafeUnaryDoubleFP; @@ -884,7 +862,6 @@ void SimplifyLibCalls::AddOpt(LibFunc::Func F1, LibFunc::Func F2, /// we know. void SimplifyLibCalls::InitOptimizations() { // Memory LibCall Optimizations - Optimizations["memmove"] = &MemMove; AddOpt(LibFunc::memset, &MemSet); // Math Library Optimizations -- cgit v1.1