From 5a5ac124e1efaf208671f01c46edb15f29ed2a0b Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Wed, 27 May 2015 18:44:32 +0000 Subject: Vendor import of llvm trunk r238337: https://llvm.org/svn/llvm-project/llvm/trunk@238337 --- lib/CodeGen/TargetFrameLoweringImpl.cpp | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib/CodeGen/TargetFrameLoweringImpl.cpp') diff --git a/lib/CodeGen/TargetFrameLoweringImpl.cpp b/lib/CodeGen/TargetFrameLoweringImpl.cpp index 1557d10238e9..56383247eadb 100644 --- a/lib/CodeGen/TargetFrameLoweringImpl.cpp +++ b/lib/CodeGen/TargetFrameLoweringImpl.cpp @@ -14,6 +14,7 @@ #include "llvm/Target/TargetFrameLowering.h" #include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineFunction.h" +#include "llvm/IR/Function.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Target/TargetSubtargetInfo.h" #include @@ -22,6 +23,12 @@ using namespace llvm; TargetFrameLowering::~TargetFrameLowering() { } +/// The default implementation just looks at attribute "no-frame-pointer-elim". +bool TargetFrameLowering::noFramePointerElim(const MachineFunction &MF) const { + auto Attr = MF.getFunction()->getFnAttribute("no-frame-pointer-elim"); + return Attr.getValueAsString() == "true"; +} + /// getFrameIndexOffset - Returns the displacement from the frame register to /// the stack frame of the specified index. This is the default implementation /// which is overridden for some targets. @@ -42,3 +49,8 @@ int TargetFrameLowering::getFrameIndexReference(const MachineFunction &MF, FrameReg = RI->getFrameRegister(MF); return getFrameIndexOffset(MF, FI); } + +bool TargetFrameLowering::needsFrameIndexResolution( + const MachineFunction &MF) const { + return MF.getFrameInfo()->hasStackObjects(); +} -- cgit v1.2.3