[PATCH] D98401: [CodeGen] Fix backward copy propagation with -g

[Zhiwei Chen via Phabricator via llvm-commits]

condy created this revision.
Herald added a subscriber: hiraditya.
condy requested review of this revision.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98401

Files:
  llvm/lib/CodeGen/MachineCopyPropagation.cpp


Index: llvm/lib/CodeGen/MachineCopyPropagation.cpp
===================================================================
--- llvm/lib/CodeGen/MachineCopyPropagation.cpp
+++ llvm/lib/CodeGen/MachineCopyPropagation.cpp
@@ -648,6 +648,10 @@
       continue;
     }
 
+    // Ignore DBG_VALUEs
+    if (MI->isDebugValue())
+        continue;
+
     // Clobber any earlyclobber regs first.
     for (const MachineOperand &MO : MI->operands())
       if (MO.isReg() && MO.isEarlyClobber()) {
@@ -846,6 +850,10 @@
       }
     }
 
+    // Ignore DBG_VALUEs
+    if (MI->isDebugValue())
+        continue;
+
     // Invalidate any earlyclobber regs first.
     for (const MachineOperand &MO : MI->operands())
       if (MO.isReg() && MO.isEarlyClobber()) {


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