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authorBob Wilson <bob.wilson@apple.com>2010-02-28 05:34:05 +0000
committerBob Wilson <bob.wilson@apple.com>2010-02-28 05:34:05 +0000
commitb29d7d25423bc91a06a8a16aee3ff0ea96980706 (patch)
treec56862b5ea1e4c999e8da48020334cc73ad83341 /lib/Transforms
parente12b73816b50bbe2cc54b8005d86c95413b4f465 (diff)
Revert r97245 which seems to be causing performance problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97366 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
-rw-r--r--lib/Transforms/Scalar/GVN.cpp11
1 files changed, 5 insertions, 6 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index c9a66fe6ec..f7470c3c19 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -60,6 +60,7 @@ STATISTIC(NumPRELoad, "Number of loads PRE'd");
static cl::opt<bool> EnablePRE("enable-pre",
cl::init(true), cl::Hidden);
static cl::opt<bool> EnableLoadPRE("enable-load-pre", cl::init(true));
+static cl::opt<bool> EnableFullLoadPRE("enable-full-load-pre", cl::init(false));
//===----------------------------------------------------------------------===//
// ValueTable Class
@@ -661,12 +662,10 @@ namespace {
bool runOnFunction(Function &F);
public:
static char ID; // Pass identification, replacement for typeid
- explicit GVN(bool fullloadpre = true, bool noloads = false)
- : FunctionPass(&ID), EnableFullLoadPRE(fullloadpre),
- NoLoads(noloads), MD(0) { }
+ explicit GVN(bool noloads = false)
+ : FunctionPass(&ID), NoLoads(noloads), MD(0) { }
private:
- bool EnableFullLoadPRE;
bool NoLoads;
MemoryDependenceAnalysis *MD;
DominatorTree *DT;
@@ -711,8 +710,8 @@ namespace {
}
// createGVNPass - The public interface to this file...
-FunctionPass *llvm::createGVNPass(bool EnableFullLoadPRE, bool NoLoads) {
- return new GVN(EnableFullLoadPRE, NoLoads);
+FunctionPass *llvm::createGVNPass(bool NoLoads) {
+ return new GVN(NoLoads);
}
static RegisterPass<GVN> X("gvn",