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| author | Dan Gohman <gohman@apple.com> | 2008-12-17 04:30:46 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-12-17 04:30:46 +0000 |
| commit | ce70fe2e25a33290c7401df7b98ba1e63ad7855a (patch) | |
| tree | 9a631f80acda83522bd9acc04c8817d0d023e699 /llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp | |
| parent | 2a16bbe394491d97482411921570cc9650e955db (diff) | |
| download | bcm5719-llvm-ce70fe2e25a33290c7401df7b98ba1e63ad7855a.tar.gz bcm5719-llvm-ce70fe2e25a33290c7401df7b98ba1e63ad7855a.zip | |
Double the amount of memory reserved for SUnits. This is a
temporary workaround for an obscure bug. When node cloning is
used, it is possible that more SUnits will be created, and
if the SUnits std::vector has to reallocate, it will
invalidate all the graph edges.
llvm-svn: 61122
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp index 08d6702fc81..4b6469b5d06 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp @@ -71,7 +71,9 @@ void ScheduleDAGSDNodes::BuildSchedUnits() { // Reserve entries in the vector for each of the SUnits we are creating. This // ensure that reallocation of the vector won't happen, so SUnit*'s won't get // invalidated. - SUnits.reserve(DAG->allnodes_size()); + // FIXME: Multiply by 2 because we may clone nodes during scheduling. + // This is a temporary workaround. + SUnits.reserve(DAG->allnodes_size() * 2); // During scheduling, the NodeId field of SDNode is used to map SDNodes // to their associated SUnits by holding SUnits table indices. A value |
