ed6b578040
llvm function is marked nounwind This fixes cases where an invoke is emitted, despite the called llvm function being marked nounwind, because ConstructAttributeList failed to add the attribute to the attribute list. llvm optimization passes turn invokes into calls and optimize away the exception handling code, but it's better to avoid emitting the code in the front-end if the called function is known not to raise an exception. Differential Revision: https://reviews.llvm.org/D83906
128 lines
6.9 KiB
C++
128 lines
6.9 KiB
C++
// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -x c++ -emit-llvm %s -o - | FileCheck %s
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -x c++ -emit-llvm -std=c++98 %s -o - | FileCheck %s
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -x c++ -emit-llvm -std=c++11 %s -o - | FileCheck %s
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// 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
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp-simd -fexceptions -fcxx-exceptions -x c++ -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp-simd -fexceptions -fcxx-exceptions -x c++ -emit-llvm -std=c++98 %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp-simd -fexceptions -fcxx-exceptions -x c++ -emit-llvm -std=c++11 %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
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// 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
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// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
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// expected-no-diagnostics
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int a;
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int b;
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struct St {
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unsigned long field;
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St() {}
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~St() {}
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int &get() { return a; }
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};
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// CHECK-LABEL: parallel_atomic_ewc
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void parallel_atomic_ewc() {
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St s;
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#pragma omp parallel
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{
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// CHECK: invoke void @_ZN2StC1Ev(%struct.St* [[TEMP_ST_ADDR:%.+]])
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// CHECK: [[SCALAR_ADDR:%.+]] = invoke nonnull align 4 dereferenceable(4) i32* @_ZN2St3getEv(%struct.St* [[TEMP_ST_ADDR]])
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// CHECK: [[SCALAR_VAL:%.+]] = load atomic i32, i32* [[SCALAR_ADDR]] monotonic
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// CHECK: store i32 [[SCALAR_VAL]], i32* @b
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// CHECK98: invoke void @_ZN2StD1Ev(%struct.St* [[TEMP_ST_ADDR]])
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// CHECK11: call void @_ZN2StD1Ev(%struct.St* [[TEMP_ST_ADDR]])
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#pragma omp atomic read
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b = St().get();
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// CHECK-DAG: invoke void @_ZN2StC1Ev(%struct.St* [[TEMP_ST_ADDR:%.+]])
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// CHECK-DAG: [[SCALAR_ADDR:%.+]] = invoke nonnull align 4 dereferenceable(4) i32* @_ZN2St3getEv(%struct.St* [[TEMP_ST_ADDR]])
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// CHECK-DAG: [[B_VAL:%.+]] = load i32, i32* @b
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// CHECK: store atomic i32 [[B_VAL]], i32* [[SCALAR_ADDR]] monotonic
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// CHECK: {{invoke|call}} void @_ZN2StD1Ev(%struct.St* [[TEMP_ST_ADDR]])
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#pragma omp atomic write
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St().get() = b;
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// CHECK: invoke void @_ZN2StC1Ev(%struct.St* [[TEMP_ST_ADDR:%.+]])
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// CHECK: [[SCALAR_ADDR:%.+]] = invoke nonnull align 4 dereferenceable(4) i32* @_ZN2St3getEv(%struct.St* [[TEMP_ST_ADDR]])
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// CHECK: [[B_VAL:%.+]] = load i32, i32* @b
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// CHECK: [[OLD_VAL:%.+]] = load atomic i32, i32* [[SCALAR_ADDR]] monotonic,
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// CHECK: br label %[[OMP_UPDATE:.+]]
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// CHECK: [[OMP_UPDATE]]
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// CHECK: [[OLD_PHI_VAL:%.+]] = phi i32 [ [[OLD_VAL]], %{{.+}} ], [ [[NEW_OLD_VAL:%.+]], %[[OMP_UPDATE]] ]
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// CHECK: [[NEW_VAL:%.+]] = srem i32 [[OLD_PHI_VAL]], [[B_VAL]]
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// CHECK: store i32 [[NEW_VAL]], i32* [[TEMP:%.+]],
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// CHECK: [[NEW_VAL:%.+]] = load i32, i32* [[TEMP]],
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// CHECK: [[RES:%.+]] = cmpxchg i32* [[SCALAR_ADDR]], i32 [[OLD_PHI_VAL]], i32 [[NEW_VAL]] monotonic monotonic
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// CHECK: [[NEW_OLD_VAL]] = extractvalue { i32, i1 } [[RES]], 0
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// CHECK: [[COND:%.+]] = extractvalue { i32, i1 } [[RES]], 1
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// CHECK: br i1 [[COND]], label %[[OMP_DONE:.+]], label %[[OMP_UPDATE]]
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// CHECK: [[OMP_DONE]]
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// CHECK: {{invoke|call}} void @_ZN2StD1Ev(%struct.St* [[TEMP_ST_ADDR]])
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#pragma omp atomic
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St().get() %= b;
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#pragma omp atomic
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s.field++;
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// CHECK: invoke void @_ZN2StC1Ev(%struct.St* [[TEMP_ST_ADDR:%.+]])
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// CHECK: [[SCALAR_ADDR:%.+]] = invoke nonnull align 4 dereferenceable(4) i32* @_ZN2St3getEv(%struct.St* [[TEMP_ST_ADDR]])
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// CHECK: [[B_VAL:%.+]] = load i32, i32* @b
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// CHECK: [[OLD_VAL:%.+]] = load atomic i32, i32* [[SCALAR_ADDR]] monotonic,
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// CHECK: br label %[[OMP_UPDATE:.+]]
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// CHECK: [[OMP_UPDATE]]
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// CHECK: [[OLD_PHI_VAL:%.+]] = phi i32 [ [[OLD_VAL]], %{{.+}} ], [ [[NEW_OLD_VAL:%.+]], %[[OMP_UPDATE]] ]
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// CHECK: [[NEW_CALC_VAL:%.+]] = srem i32 [[OLD_PHI_VAL]], [[B_VAL]]
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// CHECK: store i32 [[NEW_CALC_VAL]], i32* [[TEMP:%.+]],
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// CHECK: [[NEW_VAL:%.+]] = load i32, i32* [[TEMP]],
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// CHECK: [[RES:%.+]] = cmpxchg i32* [[SCALAR_ADDR]], i32 [[OLD_PHI_VAL]], i32 [[NEW_VAL]] monotonic monotonic
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// CHECK: [[NEW_OLD_VAL]] = extractvalue { i32, i1 } [[RES]], 0
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// CHECK: [[COND:%.+]] = extractvalue { i32, i1 } [[RES]], 1
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// CHECK: br i1 [[COND]], label %[[OMP_DONE:.+]], label %[[OMP_UPDATE]]
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// CHECK: [[OMP_DONE]]
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// CHECK: store i32 [[NEW_CALC_VAL]], i32* @a,
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// CHECK: {{invoke|call}} void @_ZN2StD1Ev(%struct.St* [[TEMP_ST_ADDR]])
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#pragma omp atomic capture
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a = St().get() %= b;
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}
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}
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int &foo() { extern void mayThrow(); mayThrow(); return a; }
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// TERM_DEBUG-LABEL: parallel_atomic
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void parallel_atomic() {
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#pragma omp parallel
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{
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#pragma omp atomic read
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: invoke {{.*}}foo{{.*}}()
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// TERM_DEBUG: unwind label %[[TERM_LPAD:.+]],
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// TERM_DEBUG: load atomic i32, i32* @{{.+}} monotonic, {{.*}}!dbg [[READ_LOC:![0-9]+]]
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foo() = a;
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#pragma omp atomic write
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: invoke {{.*}}foo{{.*}}()
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// TERM_DEBUG: unwind label %[[TERM_LPAD:.+]],
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: store atomic i32 {{%.+}}, i32* @{{.+}} monotonic, {{.*}}!dbg [[WRITE_LOC:![0-9]+]]
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a = foo();
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#pragma omp atomic update
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: invoke {{.*}}foo{{.*}}()
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// TERM_DEBUG: unwind label %[[TERM_LPAD:.+]],
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: atomicrmw add i32* @{{.+}}, i32 %{{.+}} monotonic, {{.*}}!dbg [[UPDATE_LOC:![0-9]+]]
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a += foo();
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#pragma omp atomic capture
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: invoke {{.*}}foo{{.*}}()
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// TERM_DEBUG: unwind label %[[TERM_LPAD:.+]],
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// TERM_DEBUG-NOT: __kmpc_global_thread_num
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// TERM_DEBUG: [[OLD_VAL:%.+]] = atomicrmw add i32* @{{.+}}, i32 %{{.+}} monotonic, {{.*}}!dbg [[CAPTURE_LOC:![0-9]+]]
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// TERM_DEBUG: store i32 [[OLD_VAL]], i32* @b,
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{b = a; a += foo(); }
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}
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// TERM_DEBUG: [[TERM_LPAD]]
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// TERM_DEBUG: call void @__clang_call_terminate
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// TERM_DEBUG: unreachable
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}
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// TERM_DEBUG-DAG: [[READ_LOC]] = !DILocation(line: [[@LINE-28]],
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// TERM_DEBUG-DAG: [[WRITE_LOC]] = !DILocation(line: [[@LINE-22]],
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// TERM_DEBUG-DAG: [[UPDATE_LOC]] = !DILocation(line: [[@LINE-16]],
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// TERM_DEBUG-DAG: [[CAPTURE_LOC]] = !DILocation(line: [[@LINE-9]],
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