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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-03 00:20:51 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-03 00:20:51 +0000 |
| commit | c29d9b3495a2d87af524ad5c4b62f46c4265d828 (patch) | |
| tree | ee2282903de441de2f49496ac1334abac26e43b7 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 44456e86c866d51871fb77dffcbe55054f6e049c (diff) | |
| download | llvm-c29d9b3495a2d87af524ad5c4b62f46c4265d828.tar.gz llvm-c29d9b3495a2d87af524ad5c4b62f46c4265d828.tar.bz2 llvm-c29d9b3495a2d87af524ad5c4b62f46c4265d828.tar.xz | |
Fix PHI handling in LiveIntervals::shrinkToUses().
We need to wait until we meet a PHIDef in its defining block before resurrecting
PHIKills in the predecessors.
This should unbreak the llvm-gcc-build-x86_64-darwin10-x-mingw32-x-armeabi bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126905 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 92829b1ea4..d326729920 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -797,7 +797,7 @@ void LiveIntervals::shrinkToUses(LiveInterval *li) { (void)ExtVNI; assert(ExtVNI == VNI && "Unexpected existing value number"); // Is this a PHIDef we haven't seen before? - if (!VNI->isPHIDef() || !UsedPHIs.insert(VNI)) + if (!VNI->isPHIDef() || VNI->def != BlockStart || !UsedPHIs.insert(VNI)) continue; // The PHI is live, make sure the predecessors are live-out. for (MachineBasicBlock::const_pred_iterator PI = MBB->pred_begin(), |