[Bug middle-end/80902] A problem in expand_builtin_atomic_fetch_op

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80902

--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Tue Jun 27 17:11:01 2017
New Revision: 249700

URL: https://gcc.gnu.org/viewcvs?rev=249700&root=gcc&view=rev
Log:
        Backports from trunk:

        2016-08-15  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR rtl-optimization/73650
        * lra-constraints.c (simple_move_p): If the insn is multiple_sets
        it is not a simple move.

        2017-01-20  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR target/61729
        PR target/77850
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Adjust address to
        read from, for big endian.

        2017-04-04  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR rtl-optimization/60818
        * simplify-rtx.c (simplify_binary_operation_1): Do not replace
        a compare of comparisons with the thing compared if this results
        in a different machine mode.

        2017-04-12  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR target/80382
        * config/rs6000/sync.md (atomic_load<mode>, atomic_store<mode): Test
        for quad_address_p for TImode, instead of just not indexed_address.

        2017-04-19  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR rtl-optimization/80429
        * ira.c (split_live_ranges_for_shrink_wrap): Don't split regs that
        are only used in debug insns.

        2017-05-17  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR middle-end/80692
        * real.c (do_compare): Give decimal_do_compare preference over
        comparing just the signs.

        2017-05-31  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR target/80618
        * config/rs6000/vector.md (*vector_uneq<mode>): Write the nor in the
        splitter result in the canonical way.

        2017-06-09  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR target/80966
        * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Assert that
        gen_add3_insn did not fail.
        * config/rs6000/rs6000.md (add<mode>3): If asked to add a constant to
        r0, construct that number in a temporary reg and add that reg to r0.
        If asked to put the result in r0 as well, fail.

        2017-06-23  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR middle-end/80902
        * builtins.c (expand_builtin_atomic_fetch_op): If emitting code after
        a call, force the call to not be a tail call.

gcc/testsuite/
        Backports from trunk:

        2017-04-04  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR rtl-optimization/60818
        * gcc.c-torture/compile/pr60818.c: New testcase.

        2017-05-17  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR middle-end/80692
        * gcc.c-torture/execute/pr80692.c: New testcase.

        2017-06-09  Segher Boessenkool  <seg...@kernel.crashing.org>
        PR target/80966
        * gcc.target/powerpc/stack-limit.c: New testcase.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.c-torture/compile/pr60818.c
    branches/gcc-6-branch/gcc/testsuite/gcc.c-torture/execute/pr80692.c
    branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/stack-limit.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/builtins.c
    branches/gcc-6-branch/gcc/config/rs6000/rs6000.c
    branches/gcc-6-branch/gcc/config/rs6000/rs6000.md
    branches/gcc-6-branch/gcc/config/rs6000/sync.md
    branches/gcc-6-branch/gcc/config/rs6000/vector.md
    branches/gcc-6-branch/gcc/ira.c
    branches/gcc-6-branch/gcc/lra-constraints.c
    branches/gcc-6-branch/gcc/real.c
    branches/gcc-6-branch/gcc/simplify-rtx.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog