From 0b00a1b54e09660e73a7c623fe03beeb2bfe52a5 Mon Sep 17 00:00:00 2001 From: Sanjiv Gupta Date: Mon, 28 Dec 2009 02:40:33 +0000 Subject: Allow targets to specify the return type of libcalls that are generated for floating point comparisons, rather than hard-coding them as i32. llvm-svn: 92199 --- llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp | 3 ++- llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | 4 ++++ 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'llvm/lib/CodeGen') diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp index 84e39b48039..2831617ebd4 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp @@ -637,7 +637,8 @@ void DAGTypeLegalizer::SoftenSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, } } - EVT RetVT = MVT::i32; // FIXME: is this the correct return type? + // Use the target specific return value for comparions lib calls. + EVT RetVT = TLI.getCmpLibcallReturnType(); SDValue Ops[2] = { LHSInt, RHSInt }; NewLHS = MakeLibCall(LC1, RetVT, Ops, 2, false/*sign irrelevant*/, dl); NewRHS = DAG.getConstant(0, RetVT); diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 10261691517..d9a5a13666b 100644 --- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -713,6 +713,10 @@ MVT::SimpleValueType TargetLowering::getSetCCResultType(EVT VT) const { return PointerTy.SimpleTy; } +MVT::SimpleValueType TargetLowering::getCmpLibcallReturnType() const { + return MVT::i32; // return the default value +} + /// getVectorTypeBreakdown - Vector types are broken down into some number of /// legal first class types. For example, MVT::v8f32 maps to 2 MVT::v4f32 /// with Altivec or SSE1, or 8 promoted MVT::f64 values with the X86 FP stack. -- cgit v1.2.3