From 4fb224e3bd7655e25bc1f43d05a0922098aae4e0 Mon Sep 17 00:00:00 2001
From: Vincent Lejeune <vljn@ovi.com>
Date: Tue, 30 Apr 2013 00:14:44 +0000
Subject: [PATCH] R600: Always use texture cache for compute shaders
This will improve the performance of memory reads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180762 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/R600/R600InstrInfo.cpp | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/lib/Target/R600/R600InstrInfo.cpp b/lib/Target/R600/R600InstrInfo.cpp
index 371ffc12f1e..8fd838599f9 100644
--- a/lib/Target/R600/R600InstrInfo.cpp
+++ b/lib/Target/R600/R600InstrInfo.cpp
@@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "R600InstrInfo.h"
+#include "AMDGPU.h"
#include "AMDGPUSubtarget.h"
#include "AMDGPUTargetMachine.h"
#include "R600Defines.h"
@@ -153,7 +154,8 @@ bool R600InstrInfo::usesVertexCache(unsigned Opcode) const {
}
bool R600InstrInfo::usesVertexCache(const MachineInstr *MI) const {
- return usesVertexCache(MI->getOpcode());
+ const R600MachineFunctionInfo *MFI = MI->getParent()->getParent()->getInfo<R600MachineFunctionInfo>();
+ return MFI->ShaderType != ShaderType::COMPUTE && usesVertexCache(MI->getOpcode());
}
bool R600InstrInfo::usesTextureCache(unsigned Opcode) const {
@@ -162,7 +164,9 @@ bool R600InstrInfo::usesTextureCache(unsigned Opcode) const {
}
bool R600InstrInfo::usesTextureCache(const MachineInstr *MI) const {
- return usesTextureCache(MI->getOpcode());
+ const R600MachineFunctionInfo *MFI = MI->getParent()->getParent()->getInfo<R600MachineFunctionInfo>();
+ return (MFI->ShaderType == ShaderType::COMPUTE && usesVertexCache(MI->getOpcode())) ||
+ usesTextureCache(MI->getOpcode());
}
bool