commit f56a6d84b6b7c3432db6c2ed7280d3dbe3cb4f3d
author Matthias Braun <matze@braunis.de> Fri May 26 01:29:32 2017 +0000
committer Matthias Braun <matze@braunis.de> Fri May 26 01:29:32 2017 +0000
tree c32e2e0d401b5aebae863d6e79a758d531d4f280
parent 9e6826de773f7dbd16f068d884342acbbeade3cd

Revert "LivePhysRegs: Skip reserved regs in computeLiveIns; NFCI"

Tentatively revert, suspecting that it caused breakage in stage2
buildbots.

This reverts commit r303949.
This reverts commit r303937.

llvm-svn: 303955

llvm/lib/CodeGen/BranchFolding.cpp

diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index 03ceac1..025b9fc 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -153,14 +153,13 @@
 
   TriedMerging.clear();
 
-  MachineRegisterInfo &MRI = MF.getRegInfo();
   AfterBlockPlacement = AfterPlacement;
   TII = tii;
   TRI = tri;
   MMI = mmi;
   MLI = mli;
-  this->MRI = &MRI;
 
+  MachineRegisterInfo &MRI = MF.getRegInfo();
   UpdateLiveIns = MRI.tracksLiveness() && TRI->trackLivenessAfterRegAlloc(MF);
   if (!UpdateLiveIns)
     MRI.invalidateLiveness();
@@ -352,7 +351,7 @@
 
   if (UpdateLiveIns) {
     NewDest->clearLiveIns();
-    computeLiveIns(LiveRegs, *MRI, *NewDest);
+    computeLiveIns(LiveRegs, *TRI, *NewDest);
   }
 
   ++NumTailMerge;
@@ -389,7 +388,7 @@
   MBBFreqInfo.setBlockFreq(NewMBB, MBBFreqInfo.getBlockFreq(&CurMBB));
 
   if (UpdateLiveIns)
-    computeLiveIns(LiveRegs, *MRI, *NewMBB);
+    computeLiveIns(LiveRegs, *TRI, *NewMBB);
 
   // Add the new block to the funclet.
   const auto &FuncletI = FuncletMembership.find(&CurMBB);