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Skip over zero registers.
author
Evan Cheng
<evan.cheng@apple.com>
Wed, 4 Feb 2009 18:18:58 +0000
(18:18 +0000)
committer
Evan Cheng
<evan.cheng@apple.com>
Wed, 4 Feb 2009 18:18:58 +0000
(18:18 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63748
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/SimpleRegisterCoalescing.cpp
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diff --git
a/lib/CodeGen/SimpleRegisterCoalescing.cpp
b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index f3ffc69cccbe5efffed6c6de78f4a66696b55f14..86dca115194a5741767ce66067021ca30078955f 100644
(file)
--- a/
lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/
lib/CodeGen/SimpleRegisterCoalescing.cpp
@@
-2449,6
+2449,8
@@
bool SimpleRegisterCoalescing::runOnMachineFunction(MachineFunction &fn) {
if (!MO.isReg())
continue;
unsigned Reg = MO.getReg();
if (!MO.isReg())
continue;
unsigned Reg = MO.getReg();
+ if (!Reg)
+ continue;
if (TargetRegisterInfo::isVirtualRegister(Reg))
DeadDefs.push_back(Reg);
if (MO.isDead())
if (TargetRegisterInfo::isVirtualRegister(Reg))
DeadDefs.push_back(Reg);
if (MO.isDead())