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[X86][SSE] isFNEG - Use getTargetConstantBitsFromNode to handle all constant…

Authored by RKSimon on Jul 31 2018, 3:13 AM.

Description

[X86][SSE] isFNEG - Use getTargetConstantBitsFromNode to handle all constant cases

isFNEG was duplicating much of what was done by getTargetConstantBitsFromNode in its own calls to getTargetConstantFromNode.

Noticed while reviewing D48467.

llvm-svn: 338358

Details

Committed
RKSimonJul 31 2018, 3:13 AM
Parents
rG293079f2dec1: [ARM] Allow automatically deducing the thumb instruction size for .inst
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