25 lines · c
1// RUN: %clang_cc1 %s -ffreestanding -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-642// RUN: %clang_cc1 %s -ffreestanding -triple i386 -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-323 4#include <cpuid.h>5#include <cpuid.h> // Make sure multiple inclusion protection works.6 7// CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchg$(q$|$) $(%$|$)rbx,${1:q}\0A cpuid\0A xchg$(q$|$) $(%$|$)rbx,${1:q}", "={ax},=r,={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}})8// CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchg$(q$|$) $(%$|$)rbx,${1:q}\0A cpuid\0A xchg$(q$|$) $(%$|$)rbx,${1:q}", "={ax},=r,={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}})9// CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchg$(q$|$) $(%$|$)rbx,${1:q}\0A cpuid\0A xchg$(q$|$) $(%$|$)rbx,${1:q}", "={ax},=r,={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}})10 11// CHECK-32: {{.*}} call { i32, i32, i32, i32 } asm "cpuid", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}})12// CHECK-32: {{.*}} call { i32, i32, i32, i32 } asm "cpuid", "={ax},={bx},={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}})13// CHECK-32: {{.*}} call { i32, i32, i32, i32 } asm "cpuid", "={ax},={bx},={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}})14 15unsigned eax0, ebx0, ecx0, edx0;16unsigned eax1, ebx1, ecx1, edx1;17 18int cpuid_info[4];19 20void test_cpuid(unsigned level, unsigned count) {21 __cpuid(level, eax1, ebx1, ecx1, edx1);22 __cpuid_count(level, count, eax0, ebx0, ecx0, edx0);23 __cpuidex(cpuid_info, level, count);24}25