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Commit 6aac6463 authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86][SSE] Generalised lowerTruncate by PACKSS to work with any 'zero/all... 

[X86][SSE] Generalised lowerTruncate by PACKSS to work with any 'zero/all bits' result, not just comparisons.

Added vector compare opcodes to X86TargetLowering::ComputeNumSignBitsForTargetNode

Covered by existing tests added for D22814.

llvm-svn: 298704
parent dd0620ed
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