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[Bug rtl-optimization/83985] [8 Regression] Compile time hog for 32-bit BE powerpc targets


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83985

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan 26 12:24:53 2018
New Revision: 257088

URL: https://gcc.gnu.org/viewcvs?rev=257088&root=gcc&view=rev
Log:
        PR rtl-optimization/83985
        * dce.c (deletable_insn_p): Return false for separate shrink wrapping
        REG_CFA_RESTORE insns.
        (delete_unmarked_insns): Don't ignore separate shrink wrapping
        REG_CFA_RESTORE insns here.

        * gcc.dg/pr83985.c: New test.

Added:
    branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr83985.c
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/dce.c
    branches/gcc-7-branch/gcc/testsuite/ChangeLog

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