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DAGCombiner: Reduce 64-bit BFE pattern to pattern on 32-bit component
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Authored by arsenm on Feb 26 2016, 9:47 PM.

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Summary

If the extracted bits are restricted to the upper half or lower half, this can be truncated.

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Event Timeline

arsenm updated this revision to Diff 49284.Feb 26 2016, 9:47 PM
arsenm retitled this revision from to DAGCombiner: Reduce 64-bit BFE pattern to pattern on 32-bit component.
arsenm updated this object.
arsenm added a subscriber: llvm-commits.
tstellarAMD accepted this revision.Apr 21 2016, 10:19 AM
tstellarAMD edited edge metadata.

LGTM.

This revision is now accepted and ready to land.Apr 21 2016, 10:19 AM
arsenm closed this revision.Apr 21 2016, 11:09 AM

r267024