Jonas Paulsson
cad72efee6
[SystemZ] Check for presence of vector support in SystemZISelLowering
...
A test case was found with llvm-stress that caused DAGCombiner to crash
when compiling for an older subtarget without vector support.
SystemZTargetLowering::combineTruncateExtract() should do nothing for older
subtargets.
This check was placed in canTreatAsByteVector(), which also helps in a few
other places.
Review: Ulrich Weigand
llvm-svn: 299763
2017-04-07 12:35:11 +00:00
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