From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 25 Mar 2019 16:47:42 +0000 (+0000)
Subject: AMDGPU: Preserve LiveIntervals in WQM
X-Git-Tag: llvmorg-9.0.0-rc1~9273
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fa28455116592d06b0cc78ab77e0eb3aa1745e71;p=platform%2Fupstream%2Fllvm.git

AMDGPU: Preserve LiveIntervals in WQM

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

llvm-svn: 356922
---

diff --git a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
index dae7d455d826..03c0353390f0 100644
--- a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
+++ b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
@@ -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);
   }