Reid Kleckner 15e91c3235 [X86] Fix assertion in subreg extraction ...

This assert fires when attempting to extract a subregister from the
global PIC base register. This virtual register SD node is not in the
VRBaseMap, so we shouldn't call getVR to look it up there. If this is a
RegisterSDNode, we should be able to use the virtual register directly.

Fixes PR38385

llvm-svn: 339056

2018-08-06 21:16:16 +00:00

716 B

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