commit 8f4d43a41f94bae430064b14eb53e6f645718a47
author Matt Arsenault <Matthew.Arsenault@amd.com> Thu Jun 02 00:04:26 2016 +0000
committer Matt Arsenault <Matthew.Arsenault@amd.com> Thu Jun 02 00:04:26 2016 +0000
tree a5ff2010612469e715b2d811bb0edabd3715f26c
parent d3e4c646ea9dfc5ed20a347f5bf59760bdc781b8

Make MachineCopyPropagation preserve CFG

This doesn't touch it as far as I can tell.

llvm-svn: 271445

llvm/lib/CodeGen/MachineCopyPropagation.cpp

diff --git a/llvm/lib/CodeGen/MachineCopyPropagation.cpp b/llvm/lib/CodeGen/MachineCopyPropagation.cpp
index 7f2e778..8fdf39d 100644
--- a/llvm/lib/CodeGen/MachineCopyPropagation.cpp
+++ b/llvm/lib/CodeGen/MachineCopyPropagation.cpp
@@ -47,6 +47,11 @@
       initializeMachineCopyPropagationPass(*PassRegistry::getPassRegistry());
     }
 
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
+      AU.setPreservesCFG();
+      MachineFunctionPass::getAnalysisUsage(AU);
+    }
+
     bool runOnMachineFunction(MachineFunction &MF) override;
 
     MachineFunctionProperties getRequiredProperties() const override {