[Bug target/91823] [10 regression] r275959 breaks gcc.target/powerpc/altivec-32.c with ICE

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91823

--- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 
---
Author: rsandifo
Date: Mon Sep 23 11:56:47 2019
New Revision: 276055

URL: https://gcc.gnu.org/viewcvs?rev=276055&root=gcc&view=rev
Log:
Fix non-canonical CONST_INTs in altivec_copysign_v4sf3 (PR91823)

The pattern was generating zero-extended rather than sign-extended
CONST_INTs.

2019-09-23  Richard Sandiford  <richard.sandif...@arm.com>

gcc/
        PR target/91823
        * config/rs6000/altivec.md (altivec_copysign_v4sf3): Generate
        canonical CONST_INTs.  Use gen_rtvec.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/altivec.md