https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95973
Bug ID: 95973
Summary: Add __cpuidex
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: crazylht at gmail dot com, wwwhhhyyy333 at gmail dot com
Target Milestone: ---
Target: i386, x86-64
GCC has
__cpuid_count(leaf,subleaf, a,b,c,d)
MSVS has
void __cpuidex(
int cpuInfo[4],
int function_id,
int subfunction_id
);
MSVS's interface is a little more sensible, passing & returning an array vs
modifying 4 arguments in an un-C-language-like way. We should add __cpuidex.
