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R600: Add wavefront size property to the subtargets v2

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v2:
  - Initialize wavefront size to 0

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199838 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-01-22 21:55:40 +00:00
parent 0ed0ced91c
commit 1684d47d8f
4 changed files with 33 additions and 12 deletions
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12
lib/Target/R600/AMDGPU.td
View File

@ -72,6 +72,16 @@ class SubtargetFeatureFetchLimit <string Value> :
def FeatureFetchLimit8 : SubtargetFeatureFetchLimit <"8">;
def FeatureFetchLimit16 : SubtargetFeatureFetchLimit <"16">;
class SubtargetFeatureWavefrontSize <int Value> : SubtargetFeature<
"wavefrontsize"#Value,
"WavefrontSize",
!cast<string>(Value),
"The number of threads per wavefront">;
def FeatureWavefrontSize16 : SubtargetFeatureWavefrontSize<16>;
def FeatureWavefrontSize32 : SubtargetFeatureWavefrontSize<32>;
def FeatureWavefrontSize64 : SubtargetFeatureWavefrontSize<64>;
class SubtargetFeatureGeneration <string Value,
list<SubtargetFeature> Implies> :
SubtargetFeature <Value, "Gen", "AMDGPUSubtarget::"#Value,
@ -87,7 +97,7 @@ def FeatureEvergreen : SubtargetFeatureGeneration<"EVERGREEN",
[FeatureFetchLimit16]>;
def FeatureNorthernIslands : SubtargetFeatureGeneration<"NORTHERN_ISLANDS",
[FeatureFetchLimit16]>;
[FeatureFetchLimit16, FeatureWavefrontSize64]>;
def FeatureSouthernIslands : SubtargetFeatureGeneration<"SOUTHERN_ISLANDS",
[Feature64BitPtr, FeatureFP64]>;

5
lib/Target/R600/AMDGPUSubtarget.cpp
View File

@ -38,6 +38,7 @@ AMDGPUSubtarget::AMDGPUSubtarget(StringRef TT, StringRef CPU, StringRef FS) :
CaymanISA = false;
EnableIRStructurizer = true;
EnableIfCvt = true;
WavefrontSize = 0;
ParseSubtargetFeatures(GPU, FS);
DevName = GPU;
}
@ -74,6 +75,10 @@ bool
AMDGPUSubtarget::isIfCvtEnabled() const {
return EnableIfCvt;
}
unsigned
AMDGPUSubtarget::getWavefrontSize() const {
return WavefrontSize;
}
bool
AMDGPUSubtarget::isTargetELF() const {
return false;

2
lib/Target/R600/AMDGPUSubtarget.h
View File

@ -51,6 +51,7 @@ private:
bool CaymanISA;
bool EnableIRStructurizer;
bool EnableIfCvt;
unsigned WavefrontSize;
InstrItineraryData InstrItins;
@ -68,6 +69,7 @@ public:
bool hasCaymanISA() const;
bool IsIRStructurizerEnabled() const;
bool isIfCvtEnabled() const;
unsigned getWavefrontSize() const;
virtual bool enableMachineScheduler() const {
return getGeneration() <= NORTHERN_ISLANDS;

26
lib/Target/R600/Processors.td
View File

@ -17,45 +17,49 @@ def : Proc<"", R600_VLIW5_Itin,
[FeatureR600, FeatureVertexCache]>;
def : Proc<"r600", R600_VLIW5_Itin,
[FeatureR600 , FeatureVertexCache]>;
[FeatureR600 , FeatureVertexCache, FeatureWavefrontSize64]>;
def : Proc<"r630", R600_VLIW5_Itin,
[FeatureR600, FeatureVertexCache, FeatureWavefrontSize32]>;
def : Proc<"rs880", R600_VLIW5_Itin,
[FeatureR600]>;
[FeatureR600, FeatureWavefrontSize16]>;
def : Proc<"rv670", R600_VLIW5_Itin,
[FeatureR600, FeatureFP64, FeatureVertexCache]>;
[FeatureR600, FeatureFP64, FeatureVertexCache, FeatureWavefrontSize64]>;
//===----------------------------------------------------------------------===//
// R700
//===----------------------------------------------------------------------===//
def : Proc<"rv710", R600_VLIW5_Itin,
[FeatureR700, FeatureVertexCache]>;
[FeatureR700, FeatureVertexCache, FeatureWavefrontSize32]>;
def : Proc<"rv730", R600_VLIW5_Itin,
[FeatureR700, FeatureVertexCache]>;
[FeatureR700, FeatureVertexCache, FeatureWavefrontSize32]>;
def : Proc<"rv770", R600_VLIW5_Itin,
[FeatureR700, FeatureFP64, FeatureVertexCache]>;
[FeatureR700, FeatureFP64, FeatureVertexCache, FeatureWavefrontSize64]>;
//===----------------------------------------------------------------------===//
// Evergreen
//===----------------------------------------------------------------------===//
def : Proc<"cedar", R600_VLIW5_Itin,
[FeatureEvergreen, FeatureVertexCache]>;
[FeatureEvergreen, FeatureVertexCache, FeatureWavefrontSize32]>;
def : Proc<"redwood", R600_VLIW5_Itin,
[FeatureEvergreen, FeatureVertexCache]>;
[FeatureEvergreen, FeatureVertexCache, FeatureWavefrontSize64]>;
def : Proc<"sumo", R600_VLIW5_Itin,
[FeatureEvergreen]>;
[FeatureEvergreen, FeatureWavefrontSize64]>;
def : Proc<"juniper", R600_VLIW5_Itin,
[FeatureEvergreen, FeatureVertexCache]>;
[FeatureEvergreen, FeatureVertexCache, FeatureWavefrontSize64]>;
def : Proc<"cypress", R600_VLIW5_Itin,
[FeatureEvergreen, FeatureFP64, FeatureVertexCache]>;
[FeatureEvergreen, FeatureFP64, FeatureVertexCache,
FeatureWavefrontSize64]>;
//===----------------------------------------------------------------------===//
// Northern Islands