[PATCH] D44845: [PostRAMachineSink] preserve CFG

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml created this revision.
junbuml added reviewers: sebpop, mzolotukhin, mcrosier.

Mark CFG is preserved  since this pass do not make any change in CFG.


https://reviews.llvm.org/D44845

Files:
  lib/CodeGen/MachineSink.cpp


Index: lib/CodeGen/MachineSink.cpp
===================================================================
--- lib/CodeGen/MachineSink.cpp
+++ lib/CodeGen/MachineSink.cpp
@@ -948,6 +948,11 @@
   PostRAMachineSinking() : MachineFunctionPass(ID) {}
   StringRef getPassName() const override { return "PostRA Machine Sink"; }
 
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.setPreservesCFG();
+    MachineFunctionPass::getAnalysisUsage(AU);
+  }
+
 private:
   /// Track which registers have been modified and used.
   BitVector ModifiedRegs, UsedRegs;


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D44845.139647.patch
Type: text/x-patch
Size: 569 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180323/3bda56fc/attachment.bin>