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llvm-capstone/clang/test/OpenMP/declare_reduction_codegen.cpp
Alexey Bataev a7b19157ba [OPENMP] Fix PR34927: Emit initializer for reduction array with declare 
reduction.

If the reduction is an array or an array section and reduction operation
is declare reduction without initializer, it may lead to crash.

llvm-svn: 315611
2017-10-12 20:03:39 +00:00

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// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm %s -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -o - -femit-all-decls -disable-llvm-passes | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -emit-pch -o %t %s -femit-all-decls -disable-llvm-passes
// RUN: %clang_cc1 -fopenmp -x c++ -triple %itanium_abi_triple -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - -femit-all-decls -disable-llvm-passes | FileCheck --check-prefix=CHECK-LOAD %s
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
// CHECK: [[SSS_INT:.+]] = type { i32 }
// CHECK-LOAD: [[SSS_INT:.+]] = type { i32 }
// CHECK: add
void add(short &out, short &in) {}
#pragma omp declare reduction(my_add : short : add(omp_out, omp_in))
// CHECK: define internal void @.
// CHECK: call void @{{.+}}add{{.+}}(
// CHECK: ret void
// CHECK: foo_reduction_array
void foo_reduction_array() {
short y[1];
// CHECK: call void (%ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(
#pragma omp parallel for reduction(my_add : y)
for (int i = 0; i < 1; i++) {
}
}
// CHECK: define internal void @
#pragma omp declare reduction(+ : int, char : omp_out *= omp_in)
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[MUL:%.+]] = mul nsw i32
// CHECK-NEXT: store i32 [[MUL]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[MUL:%.+]] = mul nsw i32
// CHECK-LOAD-NEXT: store i32 [[MUL]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i8* noalias, i8* noalias)
// CHECK: sext i8
// CHECK: sext i8
// CHECK: [[MUL:%.+]] = mul nsw i32
// CHECK-NEXT: [[TRUNC:%.+]] = trunc i32 [[MUL]] to i8
// CHECK-NEXT: store i8 [[TRUNC]], i8*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i8* noalias, i8* noalias)
// CHECK-LOAD: sext i8
// CHECK-LOAD: sext i8
// CHECK-LOAD: [[MUL:%.+]] = mul nsw i32
// CHECK-LOAD-NEXT: [[TRUNC:%.+]] = trunc i32 [[MUL]] to i8
// CHECK-LOAD-NEXT: store i8 [[TRUNC]], i8*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
template <class T>
struct SSS {
T a;
SSS() : a() {}
#pragma omp declare reduction(fun : T : omp_out ^= omp_in) initializer(omp_priv = 24 + omp_orig)
};
SSS<int> d;
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[XOR:%.+]] = xor i32
// CHECK-NEXT: store i32 [[XOR]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[ADD:%.+]] = add nsw i32 24,
// CHECK-NEXT: store i32 [[ADD]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK: define {{.*}}void [[INIT:@[^(]+]]([[SSS_INT]]*
// CHECK-LOAD: define {{.*}}void [[INIT:@[^(]+]]([[SSS_INT]]*
void init(SSS<int> &lhs, SSS<int> &rhs) {}
#pragma omp declare reduction(fun : SSS < int > : omp_out = omp_in) initializer(init(omp_priv, omp_orig))
// CHECK: define internal {{.*}}void @{{[^(]+}}([[SSS_INT]]* noalias, [[SSS_INT]]* noalias)
// CHECK: call void @llvm.memcpy
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}([[SSS_INT]]* noalias, [[SSS_INT]]* noalias)
// CHECK: call {{.*}}void [[INIT]](
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}([[SSS_INT]]* noalias, [[SSS_INT]]* noalias)
// CHECK-LOAD: call void @llvm.memcpy
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}([[SSS_INT]]* noalias, [[SSS_INT]]* noalias)
// CHECK-LOAD: call {{.*}}void [[INIT]](
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
template <typename T>
T foo(T a) {
#pragma omp declare reduction(fun : T : omp_out += omp_in) initializer(omp_priv = 15 * omp_orig)
{
#pragma omp declare reduction(fun : T : omp_out /= omp_in) initializer(omp_priv = 11 - omp_orig)
}
return a;
}
struct Summary {
void merge(const Summary& other) {}
};
template <typename K>
void work() {
Summary global_summary;
#pragma omp declare reduction(+ : Summary : omp_out.merge(omp_in))
#pragma omp parallel for reduction(+ : global_summary)
for (int k = 1; k <= 100; ++k) {
}
}
struct A {};
// CHECK-LABEL: @main
int main() {
int i = 0;
SSS<int> sss;
#pragma omp parallel reduction(SSS < int > ::fun : i)
{
i += 1;
}
#pragma omp parallel reduction(::fun : sss)
{
}
#pragma omp declare reduction(fun : SSS < int > : init(omp_out, omp_in))
#pragma omp parallel reduction(fun : sss)
{
}
// CHECK: call {{.*}}void (%ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(
// CHECK: call {{.*}}void (%ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(
// CHECK: call {{.*}}void (%ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call({{[^@]*}} @{{[^@]*}}[[REGION:@[^ ]+]]
// CHECK-LABEL: work
work<A>();
// CHECK-LABEL: foo
return foo(15);
}
// CHECK: define internal {{.*}}void [[REGION]](
// CHECK: [[SSS_PRIV:%.+]] = alloca %struct.SSS,
// CHECK: invoke {{.*}} @_ZN3SSSIiEC1Ev(%struct.SSS* [[SSS_PRIV]])
// CHECK-NOT: {{call |invoke }}
// CHECK: call {{.*}}i32 @__kmpc_reduce_nowait(
// CHECK-LABEL: i32 @{{.+}}foo{{[^(].+}}(i32
// CHECK-LOAD-LABEL: i32 @{{.+}}foo{{[^(].+}}(i32
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[XOR:%.+]] = xor i32
// CHECK-LOAD-NEXT: store i32 [[XOR]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[ADD:%.+]] = add nsw i32 24,
// CHECK-LOAD-NEXT: store i32 [[ADD]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[ADD:%.+]] = add nsw i32
// CHECK-NEXT: store i32 [[ADD]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[ADD:%.+]] = add nsw i32
// CHECK-LOAD-NEXT: store i32 [[ADD]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[MUL:%.+]] = mul nsw i32 15,
// CHECK-NEXT: store i32 [[MUL]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[MUL:%.+]] = mul nsw i32 15,
// CHECK-LOAD-NEXT: store i32 [[MUL]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[DIV:%.+]] = sdiv i32
// CHECK-NEXT: store i32 [[DIV]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[DIV:%.+]] = sdiv i32
// CHECK-LOAD-NEXT: store i32 [[DIV]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK: [[SUB:%.+]] = sub nsw i32 11,
// CHECK-NEXT: store i32 [[SUB]], i32*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(i32* noalias, i32* noalias)
// CHECK-LOAD: [[SUB:%.+]] = sub nsw i32 11,
// CHECK-LOAD-NEXT: store i32 [[SUB]], i32*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
#endif
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