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Commit 333aa690 authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86][SSE] MatchVectorAllZeroTest - handle OR vector reductions (REAPPLIED) 

This patch extends MatchVectorAllZeroTest to handle OR vector reduction patterns where the result is compared against zero.

Reapplied with a fix for a chromium regression due to a missing isNullConstant() check in combineSetCC: https://bugs.chromium.org/p/chromium/issues/detail?id=1097758

Fixes PR45378

Differential Revision: https://reviews.llvm.org/D81547
parent 57ad8f47
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