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Lower the unrolling theshold to 150. Empirical tests indicate that this is a sweet spot in the performance per

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code size increase curve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113595 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2010-09-10 17:57:00 +00:00
parent d6934e4cee
commit 8ea298a4e3
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Scalar/LoopUnrollPass.cpp
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@@ -27,7 +27,7 @@
using namespace llvm; using namespace llvm;
static cl::opt<unsigned> static cl::opt<unsigned>
UnrollThreshold("unroll-threshold", cl::init(200), cl::Hidden, UnrollThreshold("unroll-threshold", cl::init(150), cl::Hidden,
cl::desc("The cut-off point for automatic loop unrolling")); cl::desc("The cut-off point for automatic loop unrolling"));
static cl::opt<unsigned> static cl::opt<unsigned>