[PATCH][AArch64 Testsuite]Fix scan-assembler test false alarm on aarch64-linux-gnu

[Alan Lawrence]

The 'scan-assembler-not not' test in gcc.target/aarch64/simd/int_comparisons_1.c 
fails on aarch64-linux-gnu because the compiler adds a ".note" at the end of the 
.s file. This patch tightens the regex to only match a not with surrounding 
whitespace. (I've verified it still catches such if e.g. the changes to 
vcond_internal are reverted).

Test now passing on aarch64-none-elf and aarch64-none-linux-gnu.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/simd/inc_comparisons_1.c: Tighten regexp.

Christophe Lyon wrote:
> Hi Alan,
> 
> In my cross-testing I've noticed that your new test:
> gcc.target/aarch64/simd/int_comparisons_1.c scan-assembler-not not
> is PASS for targets aarch64-none-elf and aarch64_be-none-elf, but
> FAIL for aarch64-none-linux-gnu.
> 
> It seems this is not what you saw in your own validations?
> 
> Christophe.
> 
> 
> 
> On 2 September 2014 17:17, Marcus Shawcroft <marcus.shawcroft@gmail.com> wrote:
>> On 19 August 2014 11:44, Alan Lawrence <alan.lawrence@arm.com> wrote:
>>
>>> gcc/ChangeLog:
>>>
>>>         * config/aarch64/aarch64-builtins.c (aarch64_types_cmtst_qualifiers,
>>>         TYPES_TST): Define.
>>>         (aarch64_fold_builtin): Update pattern for cmtst.
>>>
>>>         * config/aarch64/aarch64-protos.h
>>> (aarch64_const_vec_all_same_int_p):
>>>         Declare.
>>>
>>>         * config/aarch64/aarch64-simd-builtins.def (cmtst): Update
>>> qualifiers.
>>>
>>>         * config/aarch64/aarch64-simd.md
>>> (aarch64_vcond_internal<mode><mode>):
>>>         Switch operands, separate out more cases, refactor.
>>>
>>>         (aarch64_cmtst<mode>): Rewrite pattern to match (plus ... -1).
>>>
>>>         * config/aarch64.c (aarch64_const_vec_all_same_int_p): Take single
>>>         argument; rename old version to...
>>>         (aarch64_const_vec_all_same_in_range_p): ...this.
>>>         (aarch64_print_operand, aarch64_simd_shift_imm_p): Follow renaming.
>>>
>>>         * config/aarch64/predicates.md (aarch64_simd_imm_minus_one): Define.
>>>
>>> gcc/testsuite/ChangeLog:
>>>
>>>         * gcc.target/aarch64/simd/int_comparisons.x: New file.
>>>         * gcc.target/aarch64/simd/int_comparisons_1.c: New test.
>>>         * gcc.target/aarch64/simd/int_comparisons_2.c: Ditto.
>> OK /Marcus
> 
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