[llvm] r363745 - [GlobalISel][Localizer] Remove redundant set lookup.

[Amara Emerson via llvm-commits]

Author: aemerson
Date: Tue Jun 18 15:08:40 2019
New Revision: 363745

URL: http://llvm.org/viewvc/llvm-project?rev=363745&view=rev
Log:
[GlobalISel][Localizer] Remove redundant set lookup.

After changing the algorithm to only process the entry block we never revisit
a processed instruction.

Modified:
    llvm/trunk/lib/CodeGen/GlobalISel/Localizer.cpp

Modified: llvm/trunk/lib/CodeGen/GlobalISel/Localizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/GlobalISel/Localizer.cpp?rev=363745&r1=363744&r2=363745&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/GlobalISel/Localizer.cpp (original)
+++ llvm/trunk/lib/CodeGen/GlobalISel/Localizer.cpp Tue Jun 18 15:08:40 2019
@@ -115,7 +115,7 @@ bool Localizer::localizeInterBlock(
   // we start doing CSE across blocks.
   auto &MBB = MF.front();
   for (MachineInstr &MI : MBB) {
-    if (LocalizedInstrs.count(&MI) || !shouldLocalize(MI))
+    if (!shouldLocalize(MI))
       continue;
     LLVM_DEBUG(dbgs() << "Should localize: " << MI);
     assert(MI.getDesc().getNumDefs() == 1 &&