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| author | Bill Wendling <isanbard@gmail.com> | 2010-01-06 00:23:35 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-01-06 00:23:35 +0000 |
| commit | c075acbb54f39e7c971c34505847f59428eb0d14 (patch) | |
| tree | 930e94079c490705f09098aa85767bdd47b9d48b /llvm/lib/CodeGen/SelectionDAG | |
| parent | e51136ee05aa613a09aa43d5852aabebb019696e (diff) | |
| download | bcm5719-llvm-c075acbb54f39e7c971c34505847f59428eb0d14.tar.gz bcm5719-llvm-c075acbb54f39e7c971c34505847f59428eb0d14.zip | |
The previous code could potentially cause a cycle. Allow ordering w.r.t. a 0 order.
llvm-svn: 92810
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index 4d51f0c13e8..1ad7919962b 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -1129,8 +1129,8 @@ bool bu_ls_rr_sort::operator()(const SUnit *left, const SUnit *right) const { // Prefer an ordering where the lower the non-zero order number, the higher // the preference. - if (LOrder && ROrder && LOrder != ROrder) - return LOrder < ROrder; + if ((LOrder || ROrder) && LOrder != ROrder) + return LOrder != 0 && (LOrder < ROrder || ROrder == 0); unsigned LPriority = SPQ->getNodePriority(left); unsigned RPriority = SPQ->getNodePriority(right); |
