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llvm-project/clang/test/OpenMP/parallel_codegen.cpp
Johannes Doerfert fa5d22a045 [OpenMP][NFC] Reuse OMPIRBuilder struct ident_t handling in Clang 
Replace the `ident_t` handling in Clang with the methods offered by the
OMPIRBuilder. This cuts down on the clang code as well as the
differences between the two, making further transitions easier. Tests
have changed but there should not be a real functional change. The most
interesting difference is probably that we stop generating local ident_t
allocations for now and just use globals. Given that this happens only
with debug info, the location part of the `ident_t` is probably bigger
than the test anyway. As the location part is already a global, we can
avoid the allocation, memcpy, and store in favor of a constant global
that is slightly bigger. This can be revisited if there are
complications.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D80735
2020-08-10 17:13:26 -05:00

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// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm %s -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,CHECK
// 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 -debug-info-kind=limited -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefixes=ALL-DEBUG,CHECK-DEBUG %s
// RUN: %clang_cc1 -verify -fopenmp -fopenmp-enable-irbuilder -DIRBUILDER -x c++ -emit-llvm %s -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,IRBUILDER
// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -DIRBUILDER -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -DIRBUILDER -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -debug-info-kind=limited -gno-column-info -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefixes=ALL-DEBUG,IRBUILDER-DEBUG %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -emit-llvm %s -triple %itanium_abi_triple -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 -debug-info-kind=limited -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-enable-irbuilder -x c++ -emit-llvm %s -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-enable-irbuilder -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-enable-irbuilder -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -debug-info-kind=limited -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
// ALL-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
// ALL-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
// ALL-DAG: [[DEF_LOC_2:@.+]] = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
// CHECK-DEBUG-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
// CHECK-DEBUG-DAG: [[LOC1:@.+]] = private unnamed_addr constant [{{.+}} x i8] c";{{.*}}parallel_codegen.cpp;main;[[@LINE+23]];1;;\00"
// CHECK-DEBUG-DAG: [[LOC2:@.+]] = private unnamed_addr constant [{{.+}} x i8] c";{{.*}}parallel_codegen.cpp;tmain;[[@LINE+11]];1;;\00"
// IRBUILDER-DEBUG-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
// IRBUILDER-DEBUG-DAG: [[LOC1:@.+]] = private unnamed_addr constant [{{.+}} x i8] c";{{.*}}parallel_codegen.cpp;main;[[@LINE+20]];0;;\00"
// IRBUILDER-DEBUG-DAG: [[LOC2:@.+]] = private unnamed_addr constant [{{.+}} x i8] c";{{.*}}parallel_codegen.cpp;tmain<char **>;[[@LINE+8]];0;;\00"
template <class T>
void foo(T argc) {}
template <typename T>
int tmain(T argc) {
typedef double (*chunk_t)[argc[0][0]];
#pragma omp parallel
{
foo(argc);
chunk_t var;(void)var[0][0];
}
return 0;
}
int global;
int main (int argc, char **argv) {
int a[argc];
#pragma omp parallel shared(global, a) default(none)
foo(a[1]), a[1] = global;
#ifndef IRBUILDER
// TODO: Support for privates in IRBuilder.
#pragma omp parallel private(global, a) default(none)
#pragma omp parallel shared(global, a) default(none)
foo(a[1]), a[1] = global;
// FIXME: IRBuilder crashes in void llvm::OpenMPIRBuilder::finalize()
// Assertion `Extractor.isEligible() && "Expected OpenMP outlining to be possible!"' failed.
#pragma omp parallel shared(global, a) default(none)
#pragma omp parallel shared(global, a) default(none)
foo(a[1]), a[1] = global;
#endif // IRBUILDER
return tmain(argv);
}
// ALL-LABEL: define {{[a-z\_\b]*[ ]?i32}} @main({{i32[ ]?[a-z]*}} %argc, i8** %argv)
// ALL: store i32 %argc, i32* [[ARGC_ADDR:%.+]],
// ALL: [[VLA:%.+]] = alloca i32, i{{[0-9]+}} [[VLA_SIZE:%[^,]+]],
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i{{[0-9]+}}, i32*)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i{{[0-9]+}} [[VLA_SIZE]], i32* [[VLA]])
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i{{[0-9]+}})* [[OMP_OUTLINED1:@.+]] to void (i32*, i32*, ...)*), i{{[0-9]+}} [[VLA_SIZE]])
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i{{[0-9]+}}, i32*)* [[OMP_OUTLINED2:@.+]] to void (i32*, i32*, ...)*), i{{[0-9]+}} [[VLA_SIZE]], i32* [[VLA]])
// IRBUILDER: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i32* [[VLA]])
// ALL: [[ARGV:%.+]] = load i8**, i8*** {{%[a-z0-9.]+}}
// ALL-NEXT: [[RET:%.+]] = call {{[a-z\_\b]*[ ]?i32}} [[TMAIN:@.+tmain.+]](i8** [[ARGV]])
// ALL: ret i32
// ALL-NEXT: }
// ALL-DEBUG-LABEL: define i32 @main(i32 %argc, i8** %argv)
// ALL-DEBUG: store i32 %argc, i32* [[ARGC_ADDR:%.+]],
// ALL-DEBUG: [[VLA:%.+]] = alloca i32, i64 [[VLA_SIZE:%[^,]+]],
// CHECK-DEBUG: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @{{.*}}, i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i64, i32*)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i64 [[VLA_SIZE]], i32* [[VLA]])
// IRBUILDER-DEBUG: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @{{.*}}, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i32* [[VLA]])
// ALL-DEBUG: [[ARGV:%.+]] = load i8**, i8*** {{%[a-z0-9.]+}}
// ALL-DEBUG: [[RET:%.+]] = call i32 [[TMAIN:@.+tmain.+]](i8** [[ARGV]])
// ALL-DEBUG: ret i32
// ALL-DEBUG-NEXT: }
// CHECK: define internal {{.*}}void [[OMP_OUTLINED]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i{{[0-9]+}}{{.*}} [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]])
// CHECK-SAME: #[[FN_ATTRS:[0-9]+]]
// IRBUILDER: define internal {{.*}}void [[OMP_OUTLINED]](i32* noalias %{{.*}}, i32* noalias %{{.*}}, i32* [[VLA_REF:%[^)]+]])
// IRBUILDER-SAME: #[[FN_ATTRS:[0-9]+]]
// CHECK: store i32* [[VLA_ADDR]], i32** [[VLA_PTR_ADDR:%.+]],
// CHECK: [[VLA_REF:%.+]] = load i32*, i32** [[VLA_PTR_ADDR]]
// ALL: [[VLA_ELEM_REF:%.+]] = getelementptr inbounds i32, i32* [[VLA_REF]], i{{[0-9]+}} 1
// ALL-NEXT: [[VLA_ELEM:%.+]] = load i32, i32* [[VLA_ELEM_REF]]
// CHECK-NEXT: invoke {{.*}}void [[FOO:@.+foo.+]](i32{{[ ]?[a-z]*}} [[VLA_ELEM]])
// IRBUILDER: call {{.*}}void [[FOO:@.+foo.+]](i32{{[ ]?[a-z]*}} [[VLA_ELEM]])
// ALL: load i32, i32* @
// CHECK: ret void
// CHECK: call {{.*}}void @{{.+terminate.*|abort}}(
// CHECK-NEXT: unreachable
// CHECK-NEXT: }
// CHECK-DEBUG: define internal void [[OMP_OUTLINED_DEBUG:@.+]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i64 [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]])
// CHECK-DEBUG-SAME: #[[FN_ATTRS:[0-9]+]]
// IRBUILDER-DEBUG: define internal void [[OMP_OUTLINED_DEBUG:@.+]](i32* noalias %{{.*}}, i32* noalias %{{.*}}, i32* [[VLA_REF:%[^)]+]])
// IRBUILDER-DEBUG-SAME: #[[FN_ATTRS:[0-9]+]]
// CHECK-DEBUG: store i32* [[VLA_ADDR]], i32** [[VLA_PTR_ADDR:%.+]],
// CHECK-DEBUG: [[VLA_REF:%.+]] = load i32*, i32** [[VLA_PTR_ADDR]]
// ALL-DEBUG: [[VLA_ELEM_REF:%.+]] = getelementptr inbounds i32, i32* [[VLA_REF]], i64 1
// ALL-DEBUG-NEXT: [[VLA_ELEM:%.+]] = load i32, i32* [[VLA_ELEM_REF]]
// CHECK-DEBUG-NEXT: invoke void [[FOO:@.+foo.+]](i32 [[VLA_ELEM]])
// IRBUILDER-DEBUG-NEXT: call void [[FOO:@.+foo.+]](i32 [[VLA_ELEM]])
// CHECK-DEBUG: ret void
// CHECK-DEBUG: call void @{{.+terminate.*|abort}}(
// CHECK-DEBUG-NEXT: unreachable
// CHECK-DEBUG-NEXT: }
// ALL-DAG: define linkonce_odr {{.*}}void [[FOO]]({{i32[ ]?[a-z]*}} %argc)
// ALL-DAG: declare !callback ![[cbid:[0-9]+]] {{.*}}void @__kmpc_fork_call(%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...)
// ALL-DEBUG-DAG: define linkonce_odr void [[FOO]](i32 %argc)
// CHECK: define internal {{.*}}void [[OMP_OUTLINED1]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i{{[0-9]+}}{{.*}} [[VLA_SIZE:%.+]])
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 3, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i{{[0-9]+}}, i32*, i32*)* [[OMP_OUTLINED11:@.+]] to void (i32*, i32*, ...)*), i{{[0-9]+}} %{{.+}}, i32* %{{.+}}, i32* %{{.+}})
// CHECK: define internal {{.*}}void [[OMP_OUTLINED11]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i{{[0-9]+}}{{.*}} [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]], i32* {{.+}} %{{.+}})
// CHECK-NOT: load i32, i32* @
// CHECK: define internal {{.*}}void [[OMP_OUTLINED2]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i{{[0-9]+}}{{.*}} [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]])
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i{{[0-9]+}}, i32*)* [[OMP_OUTLINED21:@.+]] to void (i32*, i32*, ...)*), i{{[0-9]+}} %{{.+}}, i32* %{{.+}})
// CHECK: define internal {{.*}}void [[OMP_OUTLINED21]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i{{[0-9]+}}{{.*}} [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]])
// CHECK: load i32, i32* @
// ALL-DEBUG-DAG: declare !callback ![[cbid:[0-9]+]] void @__kmpc_fork_call(%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...)
// CHECK-DEBUG-DAG: define internal void [[OMP_OUTLINED]](i32* noalias %.global_tid., i32* noalias %.bound_tid., i64 [[VLA_SIZE:%.+]], i32* {{.+}} [[VLA_ADDR:%[^)]+]])
// CHECK-DEBUG-DAG: call void [[OMP_OUTLINED_DEBUG]]
// ALL: define linkonce_odr {{[a-z\_\b]*[ ]?i32}} [[TMAIN]](i8** %argc)
// ALL: store i8** %argc, i8*** [[ARGC_ADDR:%.+]],
// CHECK: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i8***, i{{64|32}})* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i8*** [[ARGC_ADDR]], i{{64|32}} %{{.+}})
// IRBUILDER: call {{.*}}void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* [[DEF_LOC_2]], i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i8***, i{{64|32}})* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i8*** [[ARGC_ADDR]], i{{64|32}} %{{.+}})
// ALL: ret i32 0
// ALL-NEXT: }
// ALL-DEBUG: define linkonce_odr i32 [[TMAIN]](i8** %argc)
// CHECK-DEBUG: store i8** %argc, i8*** [[ARGC_ADDR:%.+]],
// CHECK-DEBUG: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @{{.*}}, i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i8***, i64)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i8*** [[ARGC_ADDR]], i64 %{{.+}})
// IRBUILDER-DEBUG: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @{{.*}}, i32 2, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i8***, i64)* [[OMP_OUTLINED:@.+]] to void (i32*, i32*, ...)*), i8*** [[ARGC_ADDR]], i64 %{{.+}})
// ALL-DEBUG: ret i32 0
// ALL-DEBUG-NEXT: }
// CHECK: define internal {{.*}}void [[OMP_OUTLINED]](i32* noalias %.global_tid., i32* noalias %.bound_tid., i8*** nonnull align {{[0-9]+}} dereferenceable({{4|8}}) %argc, i{{64|32}}{{.*}} %{{.+}})
// IRBUILDER: define internal {{.*}}void [[OMP_OUTLINED]](i32* noalias %{{.*}}, i32* noalias %{{.*}}, i8*** [[ARGC_REF:%.*]], i{{64|32}}{{.*}} %{{.+}})
// CHECK: store i8*** %argc, i8**** [[ARGC_PTR_ADDR:%.+]],
// CHECK: [[ARGC_REF:%.+]] = load i8***, i8**** [[ARGC_PTR_ADDR]]
// ALL: [[ARGC:%.+]] = load i8**, i8*** [[ARGC_REF]]
// CHECK-NEXT: invoke {{.*}}void [[FOO1:@.+foo.+]](i8** [[ARGC]])
// IRBUILDER-NEXT: call {{.*}}void [[FOO1:@.+foo.+]](i8** [[ARGC]])
// CHECK: ret void
// CHECK: call {{.*}}void @{{.+terminate.*|abort}}(
// CHECK-NEXT: unreachable
// CHECK-NEXT: }
// CHECK-DEBUG: define internal void [[OMP_OUTLINED_DEBUG:@.+]](i32* noalias %.global_tid., i32* noalias %.bound_tid., i8*** nonnull align {{[0-9]+}} dereferenceable({{4|8}}) %argc, i64 %{{.+}})
// IRBUILDER-DEBUG: define internal void [[OMP_OUTLINED_DEBUG:@.+]](i32* noalias %{{.*}}, i32* noalias %{{.*}}, i8*** [[ARGC_REF:%.*]], i64 %{{.+}})
// CHECK-DEBUG: store i8*** %argc, i8**** [[ARGC_PTR_ADDR:%.+]],
// CHECK-DEBUG: [[ARGC_REF:%.+]] = load i8***, i8**** [[ARGC_PTR_ADDR]]
// ALL-DEBUG: [[ARGC:%.+]] = load i8**, i8*** [[ARGC_REF]]
// CHECK-DEBUG-NEXT: invoke void [[FOO1:@.+foo.+]](i8** [[ARGC]])
// IRBUILDER-DEBUG-NEXT: call void [[FOO1:@.+foo.+]](i8** [[ARGC]])
// CHECK-DEBUG: ret void
// CHECK-DEBUG: call void @{{.+terminate.*|abort}}(
// CHECK-DEBUG-NEXT: unreachable
// CHECK-DEBUG-NEXT: }
// ALL: define linkonce_odr {{.*}}void [[FOO1]](i8** %argc)
// CHECK-DEBUG-DAG: define linkonce_odr void [[FOO1]](i8** %argc)
// CHECK-DEBUG-DAG: define internal void [[OMP_OUTLINED]](i32* noalias %.global_tid., i32* noalias %.bound_tid., i8*** nonnull align {{[0-9]+}} dereferenceable({{4|8}}) %argc, i64 %{{.+}})
// CHECK-DEBUG-DAG: call void [[OMP_OUTLINED_DEBUG]]({{[^)]+}}){{[^,]*}}, !dbg
// ALL: attributes #[[FN_ATTRS]] = {{.+}} nounwind
// ALL-DEBUG: attributes #[[FN_ATTRS]] = {{.+}} nounwind
// ALL: ![[cbid]] = !{![[cbidb:[0-9]+]]}
// ALL: ![[cbidb]] = !{i64 2, i64 -1, i64 -1, i1 true}
#endif
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