| // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm < %s| FileCheck %s |
| |
| // Test that we have the structure definition, the gep offsets, the name of the |
| // global, the bit grab, and the icmp correct. |
| extern void a(const char *); |
| |
| // CHECK: @__cpu_model = external dso_local global { i32, i32, i32, [1 x i32] } |
| // CHECK: @__cpu_features2 = external dso_local global i32 |
| |
| int main(void) { |
| __builtin_cpu_init(); |
| |
| // CHECK: call void @__cpu_indicator_init |
| |
| if (__builtin_cpu_supports("sse4.2")) |
| a("sse4.2"); |
| |
| // CHECK: [[LOAD:%[^ ]+]] = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i32 0, i32 3, i32 0) |
| // CHECK: [[AND:%[^ ]+]] = and i32 [[LOAD]], 256 |
| // CHECK: = icmp eq i32 [[AND]], 256 |
| |
| if (__builtin_cpu_supports("gfni")) |
| a("gfni"); |
| |
| // CHECK: [[LOAD:%[^ ]+]] = load i32, ptr @__cpu_features2 |
| // CHECK: [[AND:%[^ ]+]] = and i32 [[LOAD]], 1 |
| // CHECK: = icmp eq i32 [[AND]], 1 |
| |
| return 0; |
| } |
| |
| // CHECK: declare dso_local void @__cpu_indicator_init() |
