https://bugs.kde.org/show_bug.cgi?id=494162
Bug ID: 494162
Summary: adx flag not set in cpuid, but adox/adcx insns work
Classification: Developer tools
Product: valgrind
Version: 3.22.0
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: jpix...@gmail.com
Target Milestone: ---
SUMMARY
valgrind appears to correctly support instructions under the ADX CPUID flag
(adcx, adox), however the ADX flag appears to be masked from CPUID.
STEPS TO REPRODUCE
```
$ git clone https://github.com/ctz/x86utils
$ cd x86utils
$ make
# baseline for host
$ ./test | grep features-5
features-5: AVX512VL AVX512BW SHA AVX512CD CLWB CLFLUSHOPT AVX512IFMA SMAP ADX
RDSEED AVX512DQ AVX512F PQE PQM INVPCID ERMS BMI2 SMEP AVX2 BMI1 FSGSBase
```
OBSERVED RESULT
```
$ valgrind -q ./test | grep features-5
features-5: RDSEED xFPUCS INVPCID ERMS BMI2 SMEP AVX2 BMI1 TSCAdjust
```
EXPECTED RESULT
```
$ valgrind -q ./test | grep features-5
features-5: ADX RDSEED xFPUCS INVPCID ERMS BMI2 SMEP AVX2 BMI1 TSCAdjust
```
SOFTWARE/OS VERSIONS
This is valgrind-3.22.0 as packaged by Ubuntu 24.04 (3.22.0-0ubuntu3), on
x86_64.
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