Factor a bunch of functionality related to memcpy and memset transforms out of

GVN and into its own pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 8 insertions, 0 deletions

diff --git a/include/llvm/LinkAllPasses.h b/include/llvm/LinkAllPasses.h
index 097849d..360f9df 100644
--- a/include/llvm/LinkAllPasses.h
+++ b/include/llvm/LinkAllPasses.h
@@ -112,6 +112,7 @@ namespace {
       (void) llvm::createPredicateSimplifierPass();
       (void) llvm::createCodeGenPreparePass();
       (void) llvm::createGVNPass();
+      (void) llvm::createMemCpyOptPass();
 
       (void)new llvm::IntervalPartition();
       (void)new llvm::FindUsedTypes();
diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index f07877b..c7e8723 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -305,6 +305,13 @@ FunctionPass *createGVNPass();
 
 //===----------------------------------------------------------------------===//
 //
+// MemCpyOpt - This pass performs optimizations related to eliminating memcpy
+// calls and/or combining multiple stores into memset's.
+//
+FunctionPass *createMemCpyOptPass();
+
+//===----------------------------------------------------------------------===//
+//
 // CodeGenPrepare - This pass prepares a function for instruction selection.
 //
 FunctionPass *createCodeGenPreparePass(const TargetLowering *TLI = 0);