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| author | Dan Gohman <gohman@apple.com> | 2008-09-05 01:07:48 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-09-05 01:07:48 +0000 |
| commit | 5b4a9f4a695ce82869f60dad527c77eb1d1d6501 (patch) | |
| tree | fbec18c72e80862a7589badee27d7e5b224a2f6c /llvm/lib/CodeGen | |
| parent | a5753b31be5a5312ace8be56072ffc19a53b4c4f (diff) | |
| download | bcm5719-llvm-5b4a9f4a695ce82869f60dad527c77eb1d1d6501.tar.gz bcm5719-llvm-5b4a9f4a695ce82869f60dad527c77eb1d1d6501.zip | |
In FastISel mode, the scheduler may be invoked multiple times
in the same block. Fix the entry-block handling to only run at
at the beginning of the entry block, and not any other times.
llvm-svn: 55817
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp index 21c12d3993f..fff444087a8 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp @@ -731,7 +731,9 @@ void ScheduleDAG::EmitLiveInCopies(MachineBasicBlock *MBB) { /// EmitSchedule - Emit the machine code in scheduled order. MachineBasicBlock *ScheduleDAG::EmitSchedule() { - bool isEntryBB = &MF->front() == BB; + // If we're emitting the first code into the entry block, we + // have additional work to do. + bool isEntryBB = &MF->front() == BB && BB->empty(); if (isEntryBB && !SchedLiveInCopies) { // If this is the first basic block in the function, and if it has live ins |
