[llvm] r356922 - AMDGPU: Preserve LiveIntervals in WQM

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Mon Mar 25 09:47:42 2019
New Revision: 356922

URL: http://llvm.org/viewvc/llvm-project?rev=356922&view=rev
Log:
AMDGPU: Preserve LiveIntervals in WQM

This seems to already be done, but wasn't marked.

Modified:
    llvm/trunk/lib/Target/AMDGPU/SIWholeQuadMode.cpp

Modified: llvm/trunk/lib/Target/AMDGPU/SIWholeQuadMode.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIWholeQuadMode.cpp?rev=356922&r1=356921&r2=356922&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIWholeQuadMode.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIWholeQuadMode.cpp Mon Mar 25 09:47:42 2019
@@ -200,6 +200,8 @@ public:
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<LiveIntervals>();
+    AU.addPreserved<SlotIndexes>();
+    AU.addPreserved<LiveIntervals>();
     AU.setPreservesCFG();
     MachineFunctionPass::getAnalysisUsage(AU);
   }