On 01/03/16 17:33, Michael Collison wrote:
> This patches addresses PR 70014, where the predicates and operand do not
> match and could cause problems with the register allocator. Tested
> successfully on
> 
> arm-none-linux-gnueabi
> arm-none-linux-gnuabihf
> armeb-none-linux-gnuabihf
> arm-none-eabi
> 
> Okay for trunk?
> 
> 2016-03-01  Michael Collison  <michael.colli...@linaro.org>
> 
>     PR target/70014
>     * config/arm/arm.md (*subsi3_carryin_const): Change predicate
>     for operand 1 to s_register_operand. Change predicate for operand
>     2 to arm_not_immediate_operand.
> 

OK.

R.

> 
> bugzilla-70014-upstream.patch
> 
> 
> diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
> index e67239d..47171b9 100644
> --- a/gcc/config/arm/arm.md
> +++ b/gcc/config/arm/arm.md
> @@ -883,8 +883,8 @@
>  
>  (define_insn "*subsi3_carryin_const"
>    [(set (match_operand:SI 0 "s_register_operand" "=r")
> -        (minus:SI (plus:SI (match_operand:SI 1 "reg_or_int_operand" "r")
> -                           (match_operand:SI 2 "arm_not_operand" "K"))
> +        (minus:SI (plus:SI (match_operand:SI 1 "s_register_operand" "r")
> +                           (match_operand:SI 2 "arm_not_immediate_operand" 
> "K"))
>                    (ltu:SI (reg:CC_C CC_REGNUM) (const_int 0))))]
>    "TARGET_32BIT"
>    "sbc\\t%0, %1, #%B2"
> 

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