[Bug target/89474] [9 Regression] ice in df_reg_chain_verify_unmarked, at df-scan.c:3995

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89474

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Feb 26 10:08:29 2019
New Revision: 269206

URL: https://gcc.gnu.org/viewcvs?rev=269206&root=gcc&view=rev
Log:
        PR target/89474
        * config/i386/i386.c (remove_partial_avx_dependency): Call
        df_analyze etc. before creation of the v4sf_const0 pseudo, rather than
        after changing possibly many instructions to use that pseudo.  Fix up
        insertion of v4sf_const0 setter at the start of bb.

        * gcc.target/i386/pr89474.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr89474.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog