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Jakub Jelinek f51be2fb86 Shortcut identity VEC_PERM expansion [PR94710]
This PR is about the rs6000 backend emitting wrong assembly
for whole vector shift by 0, and while I think it is desirable
to fix the backend, I don't see a point why the expander should
try to emit that, whole vector shift by 0 is identity, we can just
return the operand.

2020-04-23  Jakub Jelinek  <jakub@redhat.com>

	PR target/94710
	* optabs.c (expand_vec_perm_const): For shift_amt const0_rtx
	just return v2.
2020-04-23 21:59:01 +02:00
config libgfortran: Provide some further math library fallbacks [PR94694] 2020-04-22 21:34:19 +02:00
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