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[InstSimplify] Handle nsw shl -> poison patterns

Authored by RKSimon on Feb 23 2021, 10:26 AM.

Description

[InstSimplify] Handle nsw shl -> poison patterns

Pulled out from D90479 - this recognises invalid nsw shl patterns with signbit changes that result in poison.

Differential Revision: https://reviews.llvm.org/D97305

Details

Committed
RKSimonFeb 23 2021, 10:26 AM
Differential Revision
D97305: [InstSimplify] Handle nsw shl -> poison patterns
Parents
rGd1b92c91afd0: [AMDGPU] Set threshold for regbanks reassign pass
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