[PING][PATCH, asmcons] Fix PR rtl-optimization/89313: ICE in process_alt_operands, at lra-constraints.c:2962

[Peter Bergner]

I'd like to ping the following patch:

    https://gcc.gnu.org/ml/gcc-patches/2019-02/msg01728.html

Peter


gcc/
        PR rtl-optimization/89313
        * function.c (matching_constraint_num): New static function.
        (match_asm_constraints_1): Use it.  Fixup white space and comment.
        Don't replace inputs with non-matching constraints which conflict
        with early clobber outputs.

gcc/testsuite/
        PR rtl-optimization/89313
        * gcc.dg/pr89313.c: New test.