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| author | sivarv <sivarv@microsoft.com> | 2016-11-04 17:13:57 -0700 |
|---|---|---|
| committer | sivarv <sivarv@microsoft.com> | 2016-11-04 17:52:06 -0700 |
| commit | 5daa22db6821480099ed43b15488c6a91878de37 (patch) | |
| tree | 73245d4a4354b412c7f9dbc6a3edc34b9272cc42 /src/jit/lsra.cpp | |
| parent | b67ff5ed804ba161ca7c80ad29893e9e9ebbe470 (diff) | |
| download | coreclr-5daa22db6821480099ed43b15488c6a91878de37.tar.gz coreclr-5daa22db6821480099ed43b15488c6a91878de37.tar.bz2 coreclr-5daa22db6821480099ed43b15488c6a91878de37.zip | |
While unassigning a phyReg, establish association with a previous interval
only if it is different from the one it is unassigned.
Diffstat (limited to 'src/jit/lsra.cpp')
| -rw-r--r-- | src/jit/lsra.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/jit/lsra.cpp b/src/jit/lsra.cpp index d2fbd387f9..3b22f1d8b6 100644 --- a/src/jit/lsra.cpp +++ b/src/jit/lsra.cpp @@ -6184,7 +6184,8 @@ void LinearScan::unassignPhysReg(RegRecord* regRec, RefPosition* spillRefPositio { assignedInterval->assignedReg = regRec; } - else if (regRec->previousInterval != nullptr && regRec->previousInterval->assignedReg == regRec && + else if (regRec->previousInterval != nullptr && regRec->previousInterval != assignedInterval && + regRec->previousInterval->assignedReg == regRec && regRec->previousInterval->getNextRefPosition() != nullptr) { regRec->assignedInterval = regRec->previousInterval; |