[AArch64] Fix some warnings about unused variables.

[Richard Earnshaw]

On 18/12/12 14:02, James Greenhalgh wrote:
> Hi,
>
> This straightforward patch fixes the following warnings I see when building
> for AArch64.
>
> gcc/config/aarch64/aarch64.c:6385:7: warning: unused variable ‘reg’ [-Wunused-variable]
> gcc/config/aarch64/aarch64.c:6385:12: warning: unused variable ‘mem’ [-Wunused-variable]
> gcc/config/aarch64/aarch64.c:6385:17: warning: unused variable ‘addr’ [-Wunused-variable]
> gcc/config/aarch64/aarch64.c:6386:7: warning: unused variable ‘load’ [-Wunused-variable]
> gcc/config/aarch64/aarch64.c:6669:17: warning: variable ‘mod_s’ set but not used [-Wunused-but-set-variable]
>
> Regression tested on aarch64-none-elf with no regressions and checked
> to ensure that the warnings go away.
>
> OK to commit?
>

OK.

R.

> Thanks,
> James Greenhalgh
>
> ---
> gcc/
>
> 2012-12-18  James Greenhalgh  <james.greenhalgh@arm.com>
>
> 	* config/aarch64/aarch64.c (aarch64_simd_attr_length_move):
> 	Remove unused variables.
> 	(aarch64_split_compare_and_swap): Likewise.
>
>
> 0001-AArch64-Fix-some-warnings-about-unused-variables.patch
>
>
> diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
> index 09b1777..03b1361 100644
> --- a/gcc/config/aarch64/aarch64.c
> +++ b/gcc/config/aarch64/aarch64.c
> @@ -6382,8 +6382,6 @@ aarch64_simd_disambiguate_copy (rtx *operands, rtx *dest,
>   int
>   aarch64_simd_attr_length_move (rtx insn)
>   {
> -  rtx reg, mem, addr;
> -  int load;
>     enum machine_mode mode;
>
>     extract_insn_cached (insn);
> @@ -6666,7 +6664,6 @@ aarch64_split_compare_and_swap (rtx operands[])
>   {
>     rtx rval, mem, oldval, newval, scratch;
>     enum machine_mode mode;
> -  enum memmodel mod_s;
>     bool is_weak;
>     rtx label1, label2, x, cond;
>
> @@ -6675,7 +6672,6 @@ aarch64_split_compare_and_swap (rtx operands[])
>     oldval = operands[2];
>     newval = operands[3];
>     is_weak = (operands[4] != const0_rtx);
> -  mod_s = (enum memmodel) INTVAL (operands[5]);
>     scratch = operands[7];
>     mode = GET_MODE (mem);
>
>