From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Sat, 19 Jul 2014 19:16:34 +0000 (+0000)
Subject: XXX - Increase unroll threshold
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7f36bf5f3d96ad44c8576f4be5895230703b78da;p=oota-llvm.git

XXX - Increase unroll threshold

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213459 91177308-0d34-0410-b5e6-96231b3b80d8
---

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;
       }
     }
   }