[PATCH] D141121: [AMDGPU] Add a feature for VALUTransUseHazard
Jay Foad via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jan 6 05:50:30 PST 2023
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGb7ef63af5662: [AMDGPU] Add a feature for VALUTransUseHazard (authored by foad).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D141121/new/
https://reviews.llvm.org/D141121
Files:
llvm/lib/Target/AMDGPU/AMDGPU.td
llvm/lib/Target/AMDGPU/GCNSubtarget.h
Index: llvm/lib/Target/AMDGPU/GCNSubtarget.h
===================================================================
--- llvm/lib/Target/AMDGPU/GCNSubtarget.h
+++ llvm/lib/Target/AMDGPU/GCNSubtarget.h
@@ -195,6 +195,7 @@
bool HasGFX11FullVGPRs = false;
bool HasMADIntraFwdBug = false;
bool HasVOPDInsts = false;
+ bool HasVALUTransUseHazard = false;
// Dummy feature to use for assembler in tablegen.
bool FeatureDisable = false;
@@ -1063,7 +1064,7 @@
return getGeneration() >= GFX11;
}
- bool hasVALUTransUseHazard() const { return getGeneration() >= GFX11; }
+ bool hasVALUTransUseHazard() const { return HasVALUTransUseHazard; }
bool hasVALUMaskWriteHazard() const { return getGeneration() >= GFX11; }
Index: llvm/lib/Target/AMDGPU/AMDGPU.td
===================================================================
--- llvm/lib/Target/AMDGPU/AMDGPU.td
+++ llvm/lib/Target/AMDGPU/AMDGPU.td
@@ -723,6 +723,12 @@
"Has VOPD dual issue wave32 instructions"
>;
+def FeatureVALUTransUseHazard : SubtargetFeature<"valu-trans-use-hazard",
+ "HasVALUTransUseHazard",
+ "true",
+ "Hazard when TRANS instructions are closely followed by a use of the result"
+>;
+
//===------------------------------------------------------------===//
// Subtarget Features (options and debugging)
//===------------------------------------------------------------===//
@@ -1305,6 +1311,7 @@
FeatureImageInsts,
FeaturePackedTID,
FeatureVcmpxPermlaneHazard,
+ FeatureVALUTransUseHazard,
FeatureBackOffBarrier,
FeatureMADIntraFwdBug]>;
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