[Patch] [Aarch64] PR rtl-optimization/87763 - this patch fixes gcc.target/aarch64/lsl_asr_sbfiz.c

Segher Boessenkool segher@kernel.crashing.org
Sat Apr 27 15:39:00 GMT 2019

On Sat, Apr 27, 2019 at 08:37:37AM -0600, Jeff Law wrote:
> To fix this without having the two mode pattern I've proposed or a
> pattern which matches the subreg mess above we'd need combine or
> simplify-rtx to simplify the above into something like this (From Andrew P):

Combine will do this just fine, if the backend didn't force DImode for
extv?  Can the extv pattern be made to work for GPI?


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