[Bug rtl-optimization/87466] IRA and LRA spill all pseudos that are live across setjmp calls

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87466

--- Comment #4 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Thu Oct  4 13:36:20 2018
New Revision: 264842

URL: https://gcc.gnu.org/viewcvs?rev=264842&root=gcc&view=rev
Log:
gcc/
        PR rtl-optimization/87466
        * target.def (setjmp_preserves_nonvolatile_regs_p): New target hook.
        * doc/tm.texi.in (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P): New
hook.
        * doc/tm.texi: Regenerate.
        * ira-lives.c (process_bb_node_lives): Use the new target hook.
        * lra-lives.c (process_bb_lives): Likewise.
        * config/rs6000/rs6000.c (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P):
        Define.

gcc/testsuite/
        PR rtl-optimization/87466
        * gcc.target/powerpc/pr87466.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr87466.c
Modified:
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in
    trunk/gcc/ira-lives.c
    trunk/gcc/lra-lives.c
    trunk/gcc/target.def