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_runtime = external global i32 5 // CHECK: @__llvm_profile_counters_foo = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8 6 // CHECK: @__llvm_profile_name_foo = hidden constant [3 x i8] c"foo", section "__DATA,__llvm_prf_names", align 1 7 // 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 8 void foo(void) { } 9 10 // CHECK: @__llvm_profile_counters_foo_weak = weak hidden global [5 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8 11 // CHECK: @__llvm_profile_name_foo_weak = weak hidden constant [8 x i8] c"foo_weak", section "__DATA,__llvm_prf_names", align 1 12 // 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 13 void foo_weak(void) __attribute__((weak)); 14 void foo_weak(void) { if (0){} if (0){} if (0){} if (0){} } 15 16 // CHECK: @__llvm_profile_counters_main = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8 17 // CHECK: @__llvm_profile_name_main = hidden constant [4 x i8] c"main", section "__DATA,__llvm_prf_names", align 1 18 // 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 19 static void foo_internal(void); 20 int main(void) { 21 foo(); 22 foo_internal(); 23 foo_weak(); 24 return 0; 25 } 26 27 // CHECK: @__llvm_profile_counters_foo_internal = internal global [3 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8 28 // CHECK: @__llvm_profile_name_foo_internal = internal constant [24 x i8] c"c-linkage.c:foo_internal", section "__DATA,__llvm_prf_names", align 1 29 // CHECK: @__llvm_profile_data_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_foo_internal, i32 0, i32 0), i64* getelementptr inbounds ([3 x i64]* @__llvm_profile_counters_foo_internal, i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8 30 static void foo_internal(void) { if (0){} if (0){} } 31 32 // CHECK: @llvm.used = appending global [5 x i8*] [i8* bitcast (i32 ()* @__llvm_profile_runtime_user to 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_foo_internal to i8*)], section "llvm.metadata" 33 34 // CHECK: define linkonce_odr i32 @__llvm_profile_runtime_user() {{.*}} { 35 // CHECK: %[[REG:.*]] = load i32* @__llvm_profile_runtime 36 // CHECK: ret i32 %[[REG]] 37 // CHECK: } 38
