https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68672

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Mar 30 12:27:12 2016
New Revision: 234547

URL: https://gcc.gnu.org/viewcvs?rev=234547&root=gcc&view=rev
Log:
        Backported from mainline
        2016-02-12  Jakub Jelinek  <ja...@redhat.com>

        PR ipa/68672
        * ipa-split.c (split_function): Compute retval early in all cases
        if split_part_return_p and return_bb is not EXIT.  Remove all
        clobber stmts and reset all debug stmts that refer to SSA_NAMEs
        defined in split part, except if it is retval, in that case replace
        the old retval with the lhs of the call to the split part.

        * g++.dg/ipa/pr68672-1.C: New test.
        * g++.dg/ipa/pr68672-2.C: New test.
        * g++.dg/ipa/pr68672-3.C: New test.

Added:
    branches/gcc-5-branch/gcc/testsuite/g++.dg/ipa/pr68672-1.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/ipa/pr68672-2.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/ipa/pr68672-3.C
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/ipa-split.c
    branches/gcc-5-branch/gcc/testsuite/ChangeLog

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