[Bug inline-asm/84941] [6/7/8 Regression] internal compiler error: in reg_overlap_mentioned_p, at rtlanal.c:1870 (reg_overlap_mentioned_p()/match_asm_constraints_1())

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84941

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 22 12:31:46 2018
New Revision: 258764

URL: https://gcc.gnu.org/viewcvs?rev=258764&root=gcc&view=rev
Log:
        PR inline-asm/84941
        * function.c (match_asm_constraints_1): Don't do the optimization
        if input isn't a REG, SUBREG, MEM or constant.

        * gcc.dg/pr84941.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr84941.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/function.c
    trunk/gcc/testsuite/ChangeLog