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R600: Use a Southern Islands GPU as the default for the amdgcn target

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227314 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2015-01-28 15:38:42 +00:00
parent 11e00a5be6
commit 9813f8be5d
2 changed files with 7 additions and 3 deletions
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7
lib/Target/R600/AMDGPUSubtarget.cpp
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@ -31,7 +31,7 @@ using namespace llvm;
#include "AMDGPUGenSubtargetInfo.inc" #include "AMDGPUGenSubtargetInfo.inc"
AMDGPUSubtarget & AMDGPUSubtarget &
AMDGPUSubtarget::initializeSubtargetDependencies(StringRef GPU, StringRef FS) { AMDGPUSubtarget::initializeSubtargetDependencies(StringRef TT, StringRef GPU, StringRef FS) {
// Determine default and user-specified characteristics // Determine default and user-specified characteristics
// On SI+, we want FP64 denormals to be on by default. FP32 denormals can be // On SI+, we want FP64 denormals to be on by default. FP32 denormals can be
// enabled, but some instructions do not respect them and they run at the // enabled, but some instructions do not respect them and they run at the
@ -44,6 +44,9 @@ AMDGPUSubtarget::initializeSubtargetDependencies(StringRef GPU, StringRef FS) {
SmallString<256> FullFS("+promote-alloca,+fp64-denormals,"); SmallString<256> FullFS("+promote-alloca,+fp64-denormals,");
FullFS += FS; FullFS += FS;
if (GPU == "" && Triple(TT).getArch() == Triple::amdgcn)
GPU = "SI";
ParseSubtargetFeatures(GPU, FullFS); ParseSubtargetFeatures(GPU, FullFS);
// FIXME: I don't think think Evergreen has any useful support for // FIXME: I don't think think Evergreen has any useful support for
@ -80,7 +83,7 @@ AMDGPUSubtarget::AMDGPUSubtarget(StringRef TT, StringRef GPU, StringRef FS,
EnablePromoteAlloca(false), EnableIfCvt(true), EnablePromoteAlloca(false), EnableIfCvt(true),
EnableLoadStoreOpt(false), WavefrontSize(0), CFALUBug(false), LocalMemorySize(0), EnableLoadStoreOpt(false), WavefrontSize(0), CFALUBug(false), LocalMemorySize(0),
EnableVGPRSpilling(false), EnableVGPRSpilling(false),
DL(computeDataLayout(initializeSubtargetDependencies(GPU, FS))), DL(computeDataLayout(initializeSubtargetDependencies(TT, GPU, FS))),
FrameLowering(TargetFrameLowering::StackGrowsUp, FrameLowering(TargetFrameLowering::StackGrowsUp,
64 * 16, // Maximum stack alignment (long16) 64 * 16, // Maximum stack alignment (long16)
0), 0),

3
lib/Target/R600/AMDGPUSubtarget.h
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@ -76,7 +76,8 @@ private:
public: public:
AMDGPUSubtarget(StringRef TT, StringRef CPU, StringRef FS, TargetMachine &TM); AMDGPUSubtarget(StringRef TT, StringRef CPU, StringRef FS, TargetMachine &TM);
AMDGPUSubtarget &initializeSubtargetDependencies(StringRef GPU, StringRef FS); AMDGPUSubtarget &initializeSubtargetDependencies(StringRef TT, StringRef GPU,
StringRef FS);
// FIXME: This routine needs to go away. See comments in // FIXME: This routine needs to go away. See comments in
// AMDGPUTargetMachine.h. // AMDGPUTargetMachine.h.