[llvm-commits] [PATCH] Fix instruction selection for vduplane from v4f32 to v2f32

[David Peixotto]

We are seeing some instruction selection failures for vduplane from larger
vectors to smaller vectors. See PR13938:
http://llvm.org/bugs/show_bug.cgi?id=13938.

 

A patch to fix this issue is attached.

 

This patch fixes an instruction selection failure for

ARMISD::VDUPLANE. The selector was missing patterns for using vdup

to initialize a vector when the source vector is a Q-reg and the

destination vector is a D-reg. The fix is to add new patterns to

allow the selector to properly select this pattern.

 

-- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted
by The Linux Foundation

 

 

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