[Bug rtl-optimization/88948] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r264148

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88948

--- Comment #6 from uros at gcc dot gnu.org ---
Author: uros
Date: Sun Jan 27 17:42:58 2019
New Revision: 268312

URL: https://gcc.gnu.org/viewcvs?rev=268312&root=gcc&view=rev
Log:
        PR target/88948
        * rtl.h (prepare_copy_insn): New prototype.
        * gcse.c (prepare_copy_insn): New function, split out from
        process_insert_insn.
        (process_insert_insn): Use prepare_copy_insn.
        * store-motion.c (replace_store_insn): Use prepare_copy_insn
        instead of gen_move_insn.

testsuite/ChangeLog:

        PR target/88948
        * gcc.target/i386/pr88948.c: New test.


Added:
    branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr88948.c
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/gcse.c
    branches/gcc-7-branch/gcc/rtl.h
    branches/gcc-7-branch/gcc/store-motion.c
    branches/gcc-7-branch/gcc/testsuite/ChangeLog