1 // Check the data structures emitted by instrumentation.
2 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-linkage.c %s -o - -emit-llvm -fprofile-instr-generate | FileCheck %s
3
4 // CHECK: @__llvm_profile_name_foo = hidden constant [3 x i8] c"foo", section "__DATA,__llvm_prf_names", align 1
5 // CHECK: @__llvm_profile_name_foo_weak = weak hidden constant [8 x i8] c"foo_weak", section "__DATA,__llvm_prf_names", align 1
6 // CHECK: @__llvm_profile_name_main = hidden constant [4 x i8] c"main", section "__DATA,__llvm_prf_names", align 1
7 // CHECK: @"__llvm_profile_name_c-linkage.c:foo_internal" = internal constant [24 x i8] c"c-linkage.c:foo_internal", section "__DATA,__llvm_prf_names", align 1
8
9 // CHECK: @__llvm_profile_counters_foo = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
10 // CHECK: @__llvm_profile_data_foo = hidden constant { i32, i32, i64, i8*, i64* } { i32 3, i32 1, i64 {{[0-9]+}}, i8* getelementptr inbounds ([3 x i8]* @__llvm_profile_name_foo, i32 0, i32 0), i64* getelementptr inbounds ([1 x i64]* @__llvm_profile_counters_foo, i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8
foo(void)11 void foo(void) { }
12
13 // CHECK: @__llvm_profile_counters_foo_weak = weak hidden global [5 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
14 // CHECK: @__llvm_profile_data_foo_weak = weak hidden constant { i32, i32, i64, i8*, i64* } { i32 8, i32 5, i64 {{[0-9]+}}, i8* getelementptr inbounds ([8 x i8]* @__llvm_profile_name_foo_weak, i32 0, i32 0), i64* getelementptr inbounds ([5 x i64]* @__llvm_profile_counters_foo_weak, i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8
15 void foo_weak(void) __attribute__((weak));
foo_weak(void)16 void foo_weak(void) { if (0){} if (0){} if (0){} if (0){} }
17
18 // CHECK: @__llvm_profile_counters_main = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
19 // CHECK: @__llvm_profile_data_main = hidden constant { i32, i32, i64, i8*, i64* } { i32 4, i32 1, i64 {{[0-9]+}}, i8* getelementptr inbounds ([4 x i8]* @__llvm_profile_name_main, i32 0, i32 0), i64* getelementptr inbounds ([1 x i64]* @__llvm_profile_counters_main, i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8
20 static void foo_internal(void);
main(void)21 int main(void) {
22 foo();
23 foo_internal();
24 foo_weak();
25 return 0;
26 }
27
28 // CHECK: @"__llvm_profile_counters_c-linkage.c:foo_internal" = internal global [3 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
29 // CHECK: @"__llvm_profile_data_c-linkage.c:foo_internal" = internal constant { i32, i32, i64, i8*, i64* } { i32 24, i32 3, i64 {{[0-9]+}}, i8* getelementptr inbounds ([24 x i8]* @"__llvm_profile_name_c-linkage.c:foo_internal", i32 0, i32 0), i64* getelementptr inbounds ([3 x i64]* @"__llvm_profile_counters_c-linkage.c:foo_internal", i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8
foo_internal(void)30 static void foo_internal(void) { if (0){} if (0){} }
31
32 // CHECK: @__llvm_profile_runtime = external global i32
33 // CHECK: @llvm.used = appending global [5 x i8*] [i8* bitcast ({ i32, i32, i64, i8*, i64* }* @__llvm_profile_data_foo to i8*), i8* bitcast ({ i32, i32, i64, i8*, i64* }* @__llvm_profile_data_foo_weak to i8*), i8* bitcast ({ i32, i32, i64, i8*, i64* }* @__llvm_profile_data_main to i8*), i8* bitcast ({ i32, i32, i64, i8*, i64* }* @"__llvm_profile_data_c-linkage.c:foo_internal" to i8*), i8* bitcast (i32 ()* @__llvm_profile_runtime_user to i8*)], section "llvm.metadata"
34
35 // CHECK: define linkonce_odr i32 @__llvm_profile_runtime_user() {{.*}} {
36 // CHECK: %[[REG:.*]] = load i32* @__llvm_profile_runtime
37 // CHECK: ret i32 %[[REG]]
38 // CHECK: }
39