> On 7 Nov 2024, at 7:26 PM, Leo Yan <leo....@arm.com> wrote:
> 
> Hi Athira,
> 
> On Wed, Nov 06, 2024 at 03:04:57PM +0530, Athira Rajeev wrote:
> 
> [...]
> 
>>> Hi Athira,
>>> 
>>> sorry for the breakage and thank you for the detailed explanation. As
>>> the code will run on AMD I think your change will break that - . It is
>>> probably safest to keep the ".. else { .." for this case but guard it
>>> in the ifdef.
>>> 
>> 
>> Hi Ian
>> 
>> Thanks for your comments. Does the below change looks good ?
>> 
>> diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
>> index e3aa9d4fcf3a..f5b2d96bb59b 100644
>> --- a/tools/perf/tests/expr.c
>> +++ b/tools/perf/tests/expr.c
>> @@ -74,14 +74,12 @@ static int test__expr(struct test_suite *t 
>> __maybe_unused, int subtest __maybe_u
>>    double val, num_cpus_online, num_cpus, num_cores, num_dies, num_packages;
>>    int ret;
>>    struct expr_parse_ctx *ctx;
>> -    bool is_intel = false;
>>    char strcmp_cpuid_buf[256];
>>    struct perf_pmu *pmu = perf_pmus__find_core_pmu();
>>    char *cpuid = perf_pmu__getcpuid(pmu);
>>    char *escaped_cpuid1, *escaped_cpuid2;
>> 
>>    TEST_ASSERT_VAL("get_cpuid", cpuid);
>> -    is_intel = strstr(cpuid, "Intel") != NULL;
>> 
>>    TEST_ASSERT_EQUAL("ids_union", test_ids_union(), 0);
>> 
>> @@ -244,11 +242,13 @@ static int test__expr(struct test_suite *t 
>> __maybe_unused, int subtest __maybe_u
>>    if (num_dies) // Some platforms do not have CPU die support, for example 
>> s390
>>        TEST_ASSERT_VAL("#num_dies >= #num_packages", num_dies >= 
>> num_packages);
>> 
>> +#if defined(__i386__) && defined(__x86_64__)
>>    TEST_ASSERT_VAL("#system_tsc_freq", expr__parse(&val, ctx, 
>> "#system_tsc_freq") == 0);
>> -    if (is_intel)
>> +    if (strstr(cpuid, "Intel") != NULL)
>>        TEST_ASSERT_VAL("#system_tsc_freq > 0", val > 0);
>>    else
>>        TEST_ASSERT_VAL("#system_tsc_freq == 0", fpclassify(val) == FP_ZERO);
>> +#endif
>> 
>>    /*
>>     * Source count returns the number of events aggregating in a leader
> 
> I confirmed the change above fixes the failure on Arm64.
> 
> Tested-by: Leo Yan <leo....@arm.com>
Thanks Leo Yan for testing.

Hi Ian,

If the change above looks good, I will post a V2 . Please share your review 
comments

Thanks
Athira


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