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llvm-capstone/clang/test/OpenMP/taskloop_reduction_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 -fopenmp -x c++ %s -verify -debug-info-kind=limited -emit-llvm -o - -triple powerpc64le-unknown-linux-gnu -std=c++98 | FileCheck %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ %s -verify -debug-info-kind=limited -emit-llvm -o - -triple powerpc64le-unknown-linux-gnu -std=c++98 | FileCheck --check-prefix SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics
// CHECK: [[RED_SIZE1:@reduction_size[.].+]] = common thread_local global i64 0
// CHECK: [[RED_SIZE2:@reduction_size[.].+]] = common thread_local global i64 0
struct S {
float a;
S() : a(0.0f) {}
~S() {}
};
#pragma omp declare reduction(+:S:omp_out.a += omp_in.a) initializer(omp_priv = omp_orig)
float g;
int a;
#pragma omp threadprivate(a)
int main (int argc, char *argv[])
{
int i, n;
float a[100], b[100], sum, e[argc + 100];
S c[100];
float &d = g;
/* Some initializations */
n = 100;
for (i=0; i < n; i++)
a[i] = b[i] = i * 1.0;
sum = 0.0;
#pragma omp taskloop reduction(+:sum, c[:n], d, e)
for (i=0; i < n; i++) {
sum = sum + (a[i] * b[i]);
c[i].a = i*i;
d += i*i;
e[i] = i;
}
}
// CHECK-LABEL: @main(
// CHECK: [[RETVAL:%.*]] = alloca i32,
// CHECK: [[ARGC_ADDR:%.*]] = alloca i32,
// CHECK: [[ARGV_ADDR:%.*]] = alloca i8**,
// CHECK: [[I:%.*]] = alloca i32,
// CHECK: [[N:%.*]] = alloca i32,
// CHECK: [[A:%.*]] = alloca [100 x float],
// CHECK: [[B:%.*]] = alloca [100 x float],
// CHECK: [[SUM:%.*]] = alloca float,
// CHECK: [[SAVED_STACK:%.*]] = alloca i8*,
// CHECK: [[C:%.*]] = alloca [100 x %struct.S],
// CHECK: [[D:%.*]] = alloca float*,
// CHECK: [[AGG_CAPTURED:%.*]] = alloca [[STRUCT_ANON:%.*]],
// CHECK: [[DOTRD_INPUT_:%.*]] = alloca [4 x %struct.kmp_taskred_input_t],
// CHECK: alloca i32,
// CHECK: [[DOTCAPTURE_EXPR_:%.*]] = alloca i32,
// CHECK: [[DOTCAPTURE_EXPR_9:%.*]] = alloca i32,
// CHECK: [[TMP0:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t*
// CHECK: store i32 0, i32* [[RETVAL]],
// CHECK: store i32 [[ARGC:%.*]], i32* [[ARGC_ADDR]],
// CHECK: store i8** [[ARGV:%.*]], i8*** [[ARGV_ADDR]],
// CHECK: [[TMP1:%.*]] = load i32, i32* [[ARGC_ADDR]],
// CHECK: [[ADD:%.*]] = add nsw i32 [[TMP1]], 100
// CHECK: [[TMP2:%.*]] = zext i32 [[ADD]] to i64
// CHECK: [[VLA:%.+]] = alloca float, i64 %
// CHECK: call void @__kmpc_taskgroup(%struct.ident_t*
// CHECK-DAG: [[TMP21:%.*]] = bitcast float* [[SUM]] to i8*
// CHECK-DAG: store i8* [[TMP21]], i8** [[TMP20:%[^,]+]],
// CHECK-DAG: [[TMP20]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_:%.+]], i32 0, i32 0
// CHECK-DAG: [[TMP21:%.*]] = bitcast float* [[SUM]] to i8*
// CHECK-DAG: store i8* [[TMP21]], i8** [[TMP20:%[^,]+]],
// CHECK-DAG: [[TMP20]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 1
// CHECK-DAG: [[TMP22:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 2
// CHECK-DAG: store i64 4, i64* [[TMP22]],
// CHECK-DAG: [[TMP23:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 3
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_INIT1:.+]] to i8*), i8** [[TMP23]],
// CHECK-DAG: [[TMP24:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 4
// CHECK-DAG: store i8* null, i8** [[TMP24]],
// CHECK-DAG: [[TMP25:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 5
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_COMB1:.+]] to i8*), i8** [[TMP25]],
// CHECK-DAG: [[TMP26:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_]], i32 0, i32 6
// CHECK-DAG: [[TMP27:%.*]] = bitcast i32* [[TMP26]] to i8*
// CHECK-DAG: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP27]], i8 0, i64 4, i1 false)
// CHECK-DAG: [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x %struct.S], [100 x %struct.S]* [[C]], i64 0, i64 0
// CHECK-DAG: [[LB_ADD_LEN:%.*]] = add nsw i64 -1, %
// CHECK-DAG: [[ARRAYIDX6:%.*]] = getelementptr inbounds [100 x %struct.S], [100 x %struct.S]* [[C]], i64 0, i64 [[LB_ADD_LEN]]
// CHECK-DAG: [[TMP31:%.*]] = bitcast %struct.S* [[ARRAYIDX5]] to i8*
// CHECK-DAG: store i8* [[TMP31]], i8** [[TMP28:%[^,]+]],
// CHECK-DAG: [[TMP28]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4:%.+]], i32 0, i32 0
// CHECK-DAG: [[TMP31:%.*]] = bitcast %struct.S* [[ARRAYIDX5]] to i8*
// CHECK-DAG: store i8* [[TMP31]], i8** [[TMP28:%[^,]+]],
// CHECK-DAG: [[TMP28]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 1
// CHECK-DAG: [[TMP32:%.*]] = ptrtoint %struct.S* [[ARRAYIDX6]] to i64
// CHECK-DAG: [[TMP33:%.*]] = ptrtoint %struct.S* [[ARRAYIDX5]] to i64
// CHECK-DAG: [[TMP34:%.*]] = sub i64 [[TMP32]], [[TMP33]]
// CHECK-DAG: [[TMP35:%.*]] = sdiv exact i64 [[TMP34]], ptrtoint (float* getelementptr (float, float* null, i32 1) to i64)
// CHECK-DAG: [[TMP36:%.*]] = add nuw i64 [[TMP35]], 1
// CHECK-DAG: [[TMP37:%.*]] = mul nuw i64 [[TMP36]], ptrtoint (float* getelementptr (float, float* null, i32 1) to i64)
// CHECK-DAG: store i64 [[TMP37]], i64* [[TMP38:%[^,]+]],
// CHECK-DAG: [[TMP38]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 2
// CHECK-DAG: [[TMP39:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 3
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_INIT2:.+]] to i8*), i8** [[TMP39]],
// CHECK-DAG: [[TMP40:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 4
// CHECK-DAG: store i8* bitcast (void (i8*)* @[[RED_FINI2:.+]] to i8*), i8** [[TMP40]],
// CHECK-DAG: [[TMP41:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 5
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_COMB2:.+]] to i8*), i8** [[TMP41]],
// CHECK-DAG: [[TMP42:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_4]], i32 0, i32 6
// CHECK-DAG: store i32 1, i32* [[TMP42]],
// CHECK-DAG: [[TMP44:%.*]] = load float*, float** [[D]],
// CHECK-DAG: [[TMP45:%.*]] = bitcast float* [[TMP44]] to i8*
// CHECK-DAG: store i8* [[TMP45]], i8** [[TMP43:%[^,]+]],
// CHECK-DAG: [[TMP43]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7:%.+]], i32 0, i32 0
// CHECK-DAG: [[TMP45:%.*]] = bitcast float* [[TMP44]] to i8*
// CHECK-DAG: store i8* [[TMP45]], i8** [[TMP43:%[^,]+]],
// CHECK-DAG: [[TMP43]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 1
// CHECK-DAG: [[TMP46:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 2
// CHECK-DAG: store i64 4, i64* [[TMP46]],
// CHECK-DAG: [[TMP47:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 3
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_INIT3:.+]] to i8*), i8** [[TMP47]],
// CHECK-DAG: [[TMP48:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 4
// CHECK-DAG: store i8* null, i8** [[TMP48]],
// CHECK-DAG: [[TMP49:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 5
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_COMB3:.+]] to i8*), i8** [[TMP49]],
// CHECK-DAG: [[TMP50:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_7]], i32 0, i32 6
// CHECK-DAG: [[TMP51:%.*]] = bitcast i32* [[TMP50]] to i8*
// CHECK-DAG: call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP51]], i8 0, i64 4, i1 false)
// CHECK-DAG: [[TMP53:%.*]] = bitcast float* [[VLA]] to i8*
// CHECK-DAG: store i8* [[TMP53]], i8** [[TMP52:%[^,]+]],
// CHECK-DAG: [[TMP52]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8:%.+]], i32 0, i32 0
// CHECK-DAG: [[TMP53:%.*]] = bitcast float* [[VLA]] to i8*
// CHECK-DAG: store i8* [[TMP53]], i8** [[TMP52:%[^,]+]],
// CHECK-DAG: [[TMP52]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 1
// CHECK-DAG: [[TMP54:%.*]] = mul nuw i64 [[TMP2]], 4
// CHECK-DAG: [[TMP55:%.*]] = udiv exact i64 [[TMP54]], ptrtoint (float* getelementptr (float, float* null, i32 1) to i64)
// CHECK-DAG: store i64 [[TMP54]], i64* [[TMP56:%[^,]+]],
// CHECK-DAG: [[TMP56]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 2
// CHECK-DAG: [[TMP57:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 3
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_INIT4:.+]] to i8*), i8** [[TMP57]],
// CHECK-DAG: [[TMP58:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 4
// CHECK-DAG: store i8* null, i8** [[TMP58]],
// CHECK-DAG: [[TMP59:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 5
// CHECK-DAG: store i8* bitcast (void (i8*, i8*)* @[[RED_COMB4:.+]] to i8*), i8** [[TMP59]],
// CHECK-DAG: [[TMP60:%.*]] = getelementptr inbounds %struct.kmp_taskred_input_t, %struct.kmp_taskred_input_t* [[DOTRD_INPUT_GEP_8]], i32 0, i32 6
// CHECK-DAG: store i32 1, i32* [[TMP60]],
// CHECK-DAG: [[DOTRD_INPUT_GEP_]] = getelementptr inbounds [4 x %struct.kmp_taskred_input_t], [4 x %struct.kmp_taskred_input_t]* [[DOTRD_INPUT_]], i64 0, i64
// CHECK-DAG: [[DOTRD_INPUT_GEP_4]] = getelementptr inbounds [4 x %struct.kmp_taskred_input_t], [4 x %struct.kmp_taskred_input_t]* [[DOTRD_INPUT_]], i64 0, i64
// CHECK-DAG: [[DOTRD_INPUT_GEP_7]] = getelementptr inbounds [4 x %struct.kmp_taskred_input_t], [4 x %struct.kmp_taskred_input_t]* [[DOTRD_INPUT_]], i64 0, i64
// CHECK-DAG: [[DOTRD_INPUT_GEP_8]] = getelementptr inbounds [4 x %struct.kmp_taskred_input_t], [4 x %struct.kmp_taskred_input_t]* [[DOTRD_INPUT_]], i64 0, i64
// CHECK: [[TMP61:%.*]] = bitcast [4 x %struct.kmp_taskred_input_t]* [[DOTRD_INPUT_]] to i8*
// CHECK: [[TMP62:%.*]] = call i8* @__kmpc_taskred_init(i32 [[TMP0]], i32 4, i8* [[TMP61]])
// CHECK: [[TMP63:%.*]] = load i32, i32* [[N]],
// CHECK: store i32 [[TMP63]], i32* [[DOTCAPTURE_EXPR_]],
// CHECK: [[TMP64:%.*]] = load i32, i32* [[DOTCAPTURE_EXPR_]],
// CHECK: [[SUB:%.*]] = sub nsw i32 [[TMP64]], 0
// CHECK: [[DIV:%.*]] = sdiv i32 [[SUB]], 1
// CHECK: [[SUB12:%.*]] = sub nsw i32 [[DIV]], 1
// CHECK: store i32 [[SUB12]], i32* [[DOTCAPTURE_EXPR_9]],
// CHECK: [[TMP65:%.*]] = call i8* @__kmpc_omp_task_alloc(%struct.ident_t* {{.+}}, i32 [[TMP0]], i32 1, i64 888, i64 40, i32 (i32, i8*)* bitcast (i32 (i32, %struct.kmp_task_t_with_privates*)* @[[TASK:.+]] to i32 (i32, i8*)*))
// CHECK: call void @__kmpc_taskloop(%struct.ident_t* {{.+}}, i32 [[TMP0]], i8* [[TMP65]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, i8* null)
// CHECK: call void @__kmpc_end_taskgroup(%struct.ident_t*
// CHECK: ret i32
// CHECK: define internal void @[[RED_INIT1]](i8* noalias %{{.+}}, i8* noalias %{{.+}})
// CHECK: store float 0.000000e+00, float* %
// CHECK: ret void
// CHECK: define internal void @[[RED_COMB1]](i8* %0, i8* %1)
// CHECK: fadd float %
// CHECK: store float %{{.+}}, float* %
// CHECK: ret void
// CHECK: define internal void @[[RED_INIT2]](i8* noalias %{{.+}}, i8* noalias %{{.+}})
// CHECK: call void [[OMP_INIT1:@.+]](%struct.S*
// CHECK: ret void
// CHECK: define internal void [[OMP_COMB1:@.+]](%struct.S* noalias %0, %struct.S* noalias %1)
// CHECK: fadd float %
// CHECK: define internal void [[OMP_INIT1]](%struct.S* noalias %0, %struct.S* noalias %1)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(
// CHECK: define internal void @[[RED_FINI2]](i8* %0)
// CHECK: load i64, i64* [[RED_SIZE1]]
// CHECK: call void @
// CHECK: ret void
// CHECK: define internal void @[[RED_COMB2]](i8* %0, i8* %1)
// CHECK: load i64, i64* [[RED_SIZE1]]
// CHECK: call void [[OMP_COMB1]](
// CHECK: ret void
// CHECK: define internal void @[[RED_INIT3]](i8* noalias %{{.+}}, i8* noalias %{{.+}})
// CHECK: store float 0.000000e+00, float* %
// CHECK: ret void
// CHECK: define internal void @[[RED_COMB3]](i8* %0, i8* %1)
// CHECK: fadd float %
// CHECK: store float %{{.+}}, float* %
// CHECK: ret void
// CHECK: define internal void @[[RED_INIT4]](i8* noalias %{{.+}}, i8* noalias %{{.+}})
// CHECK: load i64, i64* [[RED_SIZE2]]
// CHECK: store float 0.000000e+00, float* %
// CHECK: ret void
// CHECK: define internal void @[[RED_COMB4]](i8* %0, i8* %1)
// CHECK: load i64, i64* [[RED_SIZE2]]
// CHECK: fadd float %
// CHECK: store float %{{.+}}, float* %
// CHECK: ret void
// CHECK: call i8* @__kmpc_task_reduction_get_th_data(
// CHECK: call i8* @__kmpc_task_reduction_get_th_data(
// CHECK: call i8* @__kmpc_task_reduction_get_th_data(
// CHECK: call i8* @__kmpc_task_reduction_get_th_data(
// CHECK-DAG: distinct !DISubprogram(linkageName: "[[TASK]]", scope: !
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_INIT1]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_COMB1]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_INIT2]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_FINI2]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_COMB2]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_INIT3]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_COMB3]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_INIT4]]"
// CHECK-DAG: !DISubprogram(linkageName: "[[RED_COMB4]]"
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