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| author | Carol Eidt <carol.eidt@microsoft.com> | 2018-09-20 10:35:32 -0700 |
|---|---|---|
| committer | Carol Eidt <carol.eidt@microsoft.com> | 2018-09-20 10:35:32 -0700 |
| commit | 4d65684d041045edd46c9523b6b51e6e17f560f4 (patch) | |
| tree | dbc749518db9e58ebe226cdc9d3096322e1aa76c /src/jit/lsra.cpp | |
| parent | 4e111c3495c480c221ee8ba577bf9837a2e98271 (diff) | |
| download | coreclr-4d65684d041045edd46c9523b6b51e6e17f560f4.tar.gz coreclr-4d65684d041045edd46c9523b6b51e6e17f560f4.tar.bz2 coreclr-4d65684d041045edd46c9523b6b51e6e17f560f4.zip | |
Handle partial multireg COPY
A multireg COPY will only have a valid register for indices that require copying. Thus, the `GetRegCount` method must return the highest index that has a valid register.
Fix #20063
Diffstat (limited to 'src/jit/lsra.cpp')
| -rw-r--r-- | src/jit/lsra.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/jit/lsra.cpp b/src/jit/lsra.cpp index 02bfc2a4e2..8a613b660e 100644 --- a/src/jit/lsra.cpp +++ b/src/jit/lsra.cpp @@ -9237,6 +9237,16 @@ void LinearScan::dumpLsraAllocationEvent(LsraDumpEvent event, case LSRA_EVENT_DEFUSE_CASE6: printf(indentFormat, " Case #6 need a copy"); dumpRegRecords(); + if (interval == nullptr) + { + printf(indentFormat, " NULL interval"); + dumpRegRecords(); + } + else if (interval->firstRefPosition->multiRegIdx != 0) + { + printf(indentFormat, " (multiReg)"); + dumpRegRecords(); + } break; case LSRA_EVENT_SPILL: |