commit 48f2cb926e2512a1c4c33ca5a9e757de1c12036c
author Evan Cheng <evan.cheng@apple.com> Thu Mar 25 01:01:37 2010 +0000
committer Evan Cheng <evan.cheng@apple.com> Thu Mar 25 01:01:37 2010 +0000
tree d0c1538e4f097c09dcfcc5c673ffa157331753c2
parent 1f2ae40efd5167cfe5dde34c310138933307691b

Avoid being influenced by dbg_value instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99465 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/PHIElimination.cpp

diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp
index 8bbe0a7..f0057ce 100644
--- a/lib/CodeGen/PHIElimination.cpp
+++ b/lib/CodeGen/PHIElimination.cpp
@@ -74,7 +74,7 @@
          E = ImpDefs.end(); I != E; ++I) {
     MachineInstr *DefMI = *I;
     unsigned DefReg = DefMI->getOperand(0).getReg();
-    if (MRI->use_empty(DefReg))
+    if (MRI->use_nodbg_empty(DefReg))
       DefMI->eraseFromParent();
   }
 

lib/CodeGen/SimpleRegisterCoalescing.cpp

diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 97e858f..c5e0362 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -2800,7 +2800,7 @@
           if (MO.isDead())
             continue;
           if (TargetRegisterInfo::isPhysicalRegister(Reg) ||
-              !mri_->use_empty(Reg)) {
+              !mri_->use_nodbg_empty(Reg)) {
             isDead = false;
             break;
           }