[llvm] r255251 - [WebAssembly] Declare that WebAssemblyPeephole does not modify the CFG.

[Dan Gohman via llvm-commits]

Author: djg
Date: Thu Dec 10 08:12:04 2015
New Revision: 255251

URL: http://llvm.org/viewvc/llvm-project?rev=255251&view=rev
Log:
[WebAssembly] Declare that WebAssemblyPeephole does not modify the CFG.

Modified:
    llvm/trunk/lib/Target/WebAssembly/WebAssemblyPeephole.cpp

Modified: llvm/trunk/lib/Target/WebAssembly/WebAssemblyPeephole.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/WebAssemblyPeephole.cpp?rev=255251&r1=255250&r2=255251&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyPeephole.cpp (original)
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyPeephole.cpp Thu Dec 10 08:12:04 2015
@@ -26,6 +26,11 @@ class WebAssemblyPeephole final : public
     return "WebAssembly late peephole optimizer";
   }
 
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.setPreservesCFG();
+    MachineFunctionPass::getAnalysisUsage(AU);
+  }
+
   bool runOnMachineFunction(MachineFunction &MF) override;
 
 public: