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Comment from code review
author
Andrew Trick
<atrick@apple.com>
Wed, 22 Feb 2012 18:34:49 +0000
(18:34 +0000)
committer
Andrew Trick
<atrick@apple.com>
Wed, 22 Feb 2012 18:34:49 +0000
(18:34 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151178
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/ScheduleDAGInstrs.cpp
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diff --git
a/lib/CodeGen/ScheduleDAGInstrs.cpp
b/lib/CodeGen/ScheduleDAGInstrs.cpp
index ddf445d7a94c7ee1ba8efb2e91b170f1673f6f56..02d07fa08c6177a52c18da9811c9351e87636379 100644
(file)
--- a/
lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/
lib/CodeGen/ScheduleDAGInstrs.cpp
@@
-362,6
+362,7
@@
void ScheduleDAGInstrs::addVRegDefDeps(SUnit *SU, unsigned OperIdx) {
unsigned Reg = MI->getOperand(OperIdx).getReg();
// SSA defs do not have output/anti dependencies.
+ // The current operand is a def, so we have at least one.
if (llvm::next(MRI.def_begin(Reg)) == MRI.def_end())
return;