From 7f36bf5f3d96ad44c8576f4be5895230703b78da Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Sat, 19 Jul 2014 19:16:34 +0000
Subject: [PATCH] XXX - Increase unroll threshold
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213459 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/R600/AMDGPUTargetTransformInfo.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/Target/R600/AMDGPUTargetTransformInfo.cpp b/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
index 88934b65876..cb15883d701 100644
--- a/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
+++ b/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
@@ -101,6 +101,8 @@ bool AMDGPUTTI::hasBranchDivergence() const { return true; }
void AMDGPUTTI::getUnrollingPreferences(Loop *L,
UnrollingPreferences &UP) const {
+ UP.Threshold = 300;
+
for (const BasicBlock *BB : L->getBlocks()) {
for (const Instruction &I : *BB) {
const GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(&I);
@@ -120,7 +122,7 @@ void AMDGPUTTI::getUnrollingPreferences(Loop *L,
//
// Don't use the maximum allowed value here as it will make some
// programs way too big.
- UP.Threshold = 500;
+ UP.Threshold = 600;
}
}
}