[Bug target/92140] clang vs gcc optimizing with adc/sbb

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92140

--- Comment #28 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Oct 19 12:46:57 2019
New Revision: 277203

URL: https://gcc.gnu.org/viewcvs?rev=277203&root=gcc&view=rev
Log:
        PR target/92140
        * config/i386/predicates.md (int_nonimmediate_operand): New special
        predicate.
        * config/i386/i386.md (*add<mode>3_eq, *add<mode>3_ne,
        *add<mode>3_eq_0, *add<mode>3_ne_0, *sub<mode>3_eq, *sub<mode>3_ne,
        *sub<mode>3_eq_1, *sub<mode>3_eq_0, *sub<mode>3_ne_0): New
        define_insn_and_split patterns.

        * gcc.target/i386/pr92140.c: New test.
        * gcc.c-torture/execute/pr92140.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr92140.c
    trunk/gcc/testsuite/gcc.target/i386/pr92140.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/config/i386/predicates.md
    trunk/gcc/testsuite/ChangeLog