[PATCH] D120025: [AMDGPU] Return better Changed status from SILowerControlFlow

[Jay Foad via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG768e6faba8fa: [AMDGPU] Return better Changed status from SILowerControlFlow (authored by foad).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120025/new/

https://reviews.llvm.org/D120025

Files:
  llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp


Index: llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
+++ llvm/lib/Target/AMDGPU/SILowerControlFlow.cpp
@@ -865,6 +865,7 @@
     }
   }
 
+  bool Changed = false;
   MachineFunction::iterator NextBB;
   for (MachineFunction::iterator BI = MF.begin();
        BI != MF.end(); BI = NextBB) {
@@ -886,6 +887,7 @@
       case AMDGPU::SI_LOOP:
       case AMDGPU::SI_END_CF:
         SplitMBB = process(MI);
+        Changed = true;
         break;
 
       // FIXME: find a better place for this
@@ -894,6 +896,7 @@
         lowerInitExec(MBB, MI);
         if (LIS)
           LIS->removeAllRegUnitsForPhysReg(AMDGPU::EXEC);
+        Changed = true;
         break;
 
       default:
@@ -913,5 +916,5 @@
   LoweredIf.clear();
   KillBlocks.clear();
 
-  return true;
+  return Changed;
 }


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