From f27ae6cdcfb8eda90f43103f93576de238eba17a Mon Sep 17 00:00:00 2001
From: Gerolf Hoflehner <ghoflehner@apple.com>
Date: Fri, 18 Jul 2014 19:13:09 +0000
Subject: MergedLoadStoreMotion pass

Merges equivalent loads on both sides of a hammock/diamond
and hoists into into the header.
Merges equivalent stores on both sides of a hammock/diamond
and sinks it to the footer.
Can enable if conversion and tolerate better load misses
and store operand latencies.

llvm-svn: 213396
---
 llvm/lib/Transforms/Scalar/Scalar.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'llvm/lib/Transforms/Scalar/Scalar.cpp')

diff --git a/llvm/lib/Transforms/Scalar/Scalar.cpp b/llvm/lib/Transforms/Scalar/Scalar.cpp
index edf012d8117..de724d419a4 100644
--- a/llvm/lib/Transforms/Scalar/Scalar.cpp
+++ b/llvm/lib/Transforms/Scalar/Scalar.cpp
@@ -52,6 +52,7 @@ void llvm::initializeScalarOpts(PassRegistry &Registry) {
   initializeLowerAtomicPass(Registry);
   initializeLowerExpectIntrinsicPass(Registry);
   initializeMemCpyOptPass(Registry);
+  initializeMergedLoadStoreMotionPass(Registry);
   initializePartiallyInlineLibCallsPass(Registry);
   initializeReassociatePass(Registry);
   initializeRegToMemPass(Registry);
@@ -92,6 +93,10 @@ void LLVMAddGVNPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createGVNPass());
 }
 
+void LLVMAddMergedLoadStoreMotionPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createMergedLoadStoreMotionPass());
+}
+
 void LLVMAddIndVarSimplifyPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createIndVarSimplifyPass());
 }
-- 
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