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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-12-07 22:06:02 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-12-07 22:06:02 +0000 |
| commit | 30c44e18bf28c3f5feda56e97695e2b72de7fedb (patch) | |
| tree | c1cf3026f5fc2a5939d588bc2194ac2fa13a9a91 /lib/CodeGen/SelectionDAG | |
| parent | 20aa12ae5cdf3a7c60f7bb89208c5044932c9e11 (diff) | |
| download | llvm-30c44e18bf28c3f5feda56e97695e2b72de7fedb.tar.gz llvm-30c44e18bf28c3f5feda56e97695e2b72de7fedb.tar.bz2 llvm-30c44e18bf28c3f5feda56e97695e2b72de7fedb.tar.xz | |
Fix an assertion in the scheduler. PR11386. No testcase included because it's rather delicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146083 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index c2d3dd3d60..98931289ce 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -811,12 +811,11 @@ void ScheduleDAGRRList::UnscheduleNodeBottomUp(SUnit *SU) { for (SUnit::succ_iterator I = SU->Succs.begin(), E = SU->Succs.end(); I != E; ++I) { if (I->isAssignedRegDep()) { + if (!LiveRegDefs[I->getReg()]) + ++NumLiveRegs; // This becomes the nearest def. Note that an earlier def may still be // pending if this is a two-address node. LiveRegDefs[I->getReg()] = SU; - if (!LiveRegDefs[I->getReg()]) { - ++NumLiveRegs; - } if (LiveRegGens[I->getReg()] == NULL || I->getSUnit()->getHeight() < LiveRegGens[I->getReg()]->getHeight()) LiveRegGens[I->getReg()] = I->getSUnit(); |