[Bug target/81414] [6/7/8 Regression] ICE in fma steering on AArch64/cortex-a57

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81414

--- Comment #2 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Jul 25 08:31:22 2017
New Revision: 250496

URL: https://gcc.gnu.org/viewcvs?rev=250496&root=gcc&view=rev
Log:
        PR target/81414
        * config/aarch64/cortex-a57-fma-steering.c (analyze): Skip fmul/fmac
        instructions if no du chain is found.

        gcc/testsuite
        * gcc.target/aarch64/pr81414.C: New.

Added:
    trunk/gcc/testsuite/gcc.target/aarch64/pr81414.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/cortex-a57-fma-steering.c
    trunk/gcc/testsuite/ChangeLog