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[X86][SSE] combineVectorTruncation - enable (pre-SSSE3) vXi16->vXi8 truncation.

Authored by RKSimon on Sep 24 2020, 7:28 AM.

Description

[X86][SSE] combineVectorTruncation - enable (pre-SSSE3) vXi16->vXi8 truncation.

Shuffle combining can now handle this output, and by performing this early in combineVectorTruncation we avoid a scalarization that caused a regression on D87502.

Details

Committed
RKSimonSep 24 2020, 7:51 AM
Parents
rGee1c04a92690: [OpenMP] Fix if0 task with dependencies in the runtime
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