diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index b74038e0751..6b14796160f 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -142,26 +142,12 @@ static RValue EmitBinaryAtomicPost(CodeGenFunction &CGF, return RValue::get(Result); } -/// EmitFAbs - Emit a call to fabs/fabsf/fabsl, depending on the type of ValTy, -/// which must be a scalar floating point type. +/// EmitFAbs - Emit a call to @llvm.fabs(). static Value *EmitFAbs(CodeGenFunction &CGF, Value *V, QualType ValTy) { - const BuiltinType *ValTyP = ValTy->getAs<BuiltinType>(); - assert(ValTyP && "isn't scalar fp type!"); - - StringRef FnName; - switch (ValTyP->getKind()) { - default: llvm_unreachable("Isn't a scalar fp type!"); - case BuiltinType::Float: FnName = "fabsf"; break; - case BuiltinType::Double: FnName = "fabs"; break; - case BuiltinType::LongDouble: FnName = "fabsl"; break; - } - - // The prototype is something that takes and returns whatever V's type is. - llvm::FunctionType *FT = llvm::FunctionType::get(V->getType(), V->getType(), - false); - llvm::Value *Fn = CGF.CGM.CreateRuntimeFunction(FT, FnName); - - return CGF.EmitNounwindRuntimeCall(Fn, V, "abs"); + Value *F = CGF.CGM.getIntrinsic(Intrinsic::fabs, V->getType()); + llvm::CallInst *Call = CGF.Builder.CreateCall(F, V); + Call->setDoesNotAccessMemory(); + return Call; } static RValue emitLibraryCall(CodeGenFunction &CGF, const FunctionDecl *Fn, |
