diff options
| author | Andrew Trick <atrick@apple.com> | 2012-02-22 18:34:49 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2012-02-22 18:34:49 +0000 |
| commit | 2fc0977a988a49dacb0ca0954e40ddc4e8849d4c (patch) | |
| tree | 2c4c0055d1c89460375617a523723227a486d0ea | |
| parent | 90f20044ade3712c8b0c3f4ebe47d57ad15ae6ce (diff) | |
Comment from code review
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151178 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp index ddf445d7a9..02d07fa08c 100644 --- 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; |