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authorGerolf Hoflehner <ghoflehner@apple.com>2014-09-10 19:55:29 +0000
committerGerolf Hoflehner <ghoflehner@apple.com>2014-09-10 19:55:29 +0000
commit24815d9b8f38e2a88b31863db70ac0c700ff2e3c (patch)
tree1783b05d101dd31becbe6f8b89017bf0b2f634e4 /llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
parent4b916b21b47d1bf9b4676ce960f85130602df7f5 (diff)
downloadbcm5719-llvm-24815d9b8f38e2a88b31863db70ac0c700ff2e3c.tar.gz
bcm5719-llvm-24815d9b8f38e2a88b31863db70ac0c700ff2e3c.zip
[MergedLoadStoreMotion] Move pass enabling option to PassManagerBuilder
llvm-svn: 217538
Diffstat (limited to 'llvm/lib/Transforms/IPO/PassManagerBuilder.cpp')
-rw-r--r--llvm/lib/Transforms/IPO/PassManagerBuilder.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
index fb56088d361..8d5d14af64b 100644
--- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -70,6 +70,10 @@ static cl::opt<bool> UseCFLAA("use-cfl-aa",
cl::init(false), cl::Hidden,
cl::desc("Enable the new, experimental CFL alias analysis"));
+static cl::opt<bool>
+EnableMLSM("mlsm", cl::desc("Enable motion of merged load and store"),
+ cl::init(true));
+
PassManagerBuilder::PassManagerBuilder() {
OptLevel = 2;
SizeLevel = 0;
@@ -228,7 +232,8 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) {
addExtensionsToPM(EP_LoopOptimizerEnd, MPM);
if (OptLevel > 1) {
- MPM.add(createMergedLoadStoreMotionPass()); // Merge load/stores in diamond
+ if (EnableMLSM)
+ MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds
MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
}
MPM.add(createMemCpyOptPass()); // Remove memcpy / form memset
@@ -388,7 +393,8 @@ void PassManagerBuilder::addLTOOptimizationPasses(PassManagerBase &PM) {
PM.add(createGlobalsModRefPass()); // IP alias analysis.
PM.add(createLICMPass()); // Hoist loop invariants.
- PM.add(createMergedLoadStoreMotionPass()); // Merge load/stores in diamonds
+ if (EnableMLSM)
+ PM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds.
PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies.
PM.add(createMemCpyOptPass()); // Remove dead memcpys.
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