critical_codegen.cpp
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// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -debug-info-kind=line-tables-only -x c++ -emit-llvm %s -o - | FileCheck %s --check-prefix=TERM_DEBUG
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp-simd -fexceptions -fcxx-exceptions -debug-info-kind=line-tables-only -x c++ -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
// CHECK: [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }
// CHECK: [[UNNAMED_LOCK:@.+]] = common global [8 x i32] zeroinitializer
// CHECK: [[THE_NAME_LOCK:@.+]] = common global [8 x i32] zeroinitializer
// CHECK: [[THE_NAME_LOCK1:@.+]] = common global [8 x i32] zeroinitializer
// CHECK: define {{.*}}void [[FOO:@.+]]()
void foo() {}
// CHECK-LABEL: @main
// TERM_DEBUG-LABEL: @main
int main() {
// CHECK: [[A_ADDR:%.+]] = alloca i8
char a;
// CHECK: [[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])
// CHECK: call {{.*}}void @__kmpc_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[UNNAMED_LOCK]])
// CHECK-NEXT: store i8 2, i8* [[A_ADDR]]
// CHECK-NEXT: call {{.*}}void @__kmpc_end_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[UNNAMED_LOCK]])
#pragma omp critical
a = 2;
// CHECK: call {{.*}}void @__kmpc_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[THE_NAME_LOCK]])
// CHECK-NEXT: invoke {{.*}}void [[FOO]]()
// CHECK: call {{.*}}void @__kmpc_end_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[THE_NAME_LOCK]])
#pragma omp critical(the_name)
foo();
// CHECK: call {{.*}}void @__kmpc_critical_with_hint([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[THE_NAME_LOCK1]], i{{64|32}} 23)
// CHECK-NEXT: invoke {{.*}}void [[FOO]]()
// CHECK: call {{.*}}void @__kmpc_end_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[THE_NAME_LOCK1]])
#pragma omp critical(the_name1) hint(23)
foo();
// CHECK: call {{.*}}void @__kmpc_critical([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], [8 x i32]* [[THE_NAME_LOCK]])
// CHECK: br label
// CHECK-NOT: call {{.*}}void @__kmpc_end_critical(
// CHECK: br label
// CHECK-NOT: call {{.*}}void @__kmpc_end_critical(
// CHECK: br label
if (a)
#pragma omp critical(the_name)
while (1)
;
// CHECK: call {{.*}}void [[FOO]]()
foo();
// CHECK-NOT: call void @__kmpc_critical
// CHECK-NOT: call void @__kmpc_end_critical
return a;
}
struct S {
int a;
};
// CHECK-LABEL: critical_ref
void critical_ref(S &s) {
// CHECK: [[S_ADDR:%.+]] = alloca %struct.S*,
// CHECK: [[S_REF:%.+]] = load %struct.S*, %struct.S** [[S_ADDR]],
// CHECK: [[S_A_REF:%.+]] = getelementptr inbounds %struct.S, %struct.S* [[S_REF]], i32 0, i32 0
++s.a;
// CHECK: [[S_REF:%.+]] = load %struct.S*, %struct.S** [[S_ADDR]],
// CHECK: store %struct.S* [[S_REF]], %struct.S** [[S_ADDR:%.+]],
// CHECK: call void @__kmpc_critical(
#pragma omp critical
// CHECK: [[S_REF:%.+]] = load %struct.S*, %struct.S** [[S_ADDR]],
// CHECK: [[S_A_REF:%.+]] = getelementptr inbounds %struct.S, %struct.S* [[S_REF]], i32 0, i32 0
++s.a;
// CHECK: call void @__kmpc_end_critical(
}
// CHECK-LABEL: parallel_critical
// TERM_DEBUG-LABEL: parallel_critical
void parallel_critical() {
#pragma omp parallel
#pragma omp critical
// TERM_DEBUG-NOT: __kmpc_global_thread_num
// TERM_DEBUG: call void @__kmpc_critical({{.+}}), !dbg [[DBG_LOC_START:![0-9]+]]
// TERM_DEBUG: invoke void {{.*}}foo{{.*}}()
// TERM_DEBUG: unwind label %[[TERM_LPAD:.+]],
// TERM_DEBUG-NOT: __kmpc_global_thread_num
// TERM_DEBUG: call void @__kmpc_end_critical({{.+}}), !dbg [[DBG_LOC_END:![0-9]+]]
// TERM_DEBUG: [[TERM_LPAD]]
// TERM_DEBUG: call void @__clang_call_terminate
// TERM_DEBUG: unreachable
foo();
}
// TERM_DEBUG-DAG: [[DBG_LOC_START]] = !DILocation(line: [[@LINE-12]],
// TERM_DEBUG-DAG: [[DBG_LOC_END]] = !DILocation(line: [[@LINE-3]],
#endif