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| author | Andrew Trick <atrick@apple.com> | 2012-11-12 19:28:57 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2012-11-12 19:28:57 +0000 |
| commit | ae692f2baedf53504af2715993b166950e185a55 (patch) | |
| tree | 02610907bc6cdff18150f1c67341c8c7eaf68e6b /lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp | |
| parent | 95d8afc5f2898b59240b0c0cd78d6f54140a91b8 (diff) | |
| download | llvm-ae692f2baedf53504af2715993b166950e185a55.tar.gz llvm-ae692f2baedf53504af2715993b166950e185a55.tar.bz2 llvm-ae692f2baedf53504af2715993b166950e185a55.tar.xz | |
misched: Infrastructure for weak DAG edges.
This adds support for weak DAG edges to the general scheduling
infrastructure in preparation for MachineScheduler support for
heuristics based on weak edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167738 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp index 30f03ac737..f8ca7b1d40 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp @@ -123,6 +123,8 @@ void ScheduleDAGVLIW::releaseSucc(SUnit *SU, const SDep &D) { llvm_unreachable(0); } #endif + assert(!D.isWeak() && "unexpected artificial DAG edge"); + --SuccSU->NumPredsLeft; SuccSU->setDepthToAtLeast(SU->getDepth() + D.getLatency()); |