src/third_party/llvm-project/clang/test/OpenMP/declare_reduction_codegen.c

// RUN: %clang_cc1 -verify -fopenmp -x c -emit-llvm %s -triple %itanium_abi_triple -o - -femit-all-decls -disable-llvm-passes | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c -triple %itanium_abi_triple -emit-pch -o %t %s -femit-all-decls -disable-llvm-passes
// RUN: %clang_cc1 -fopenmp -x c -triple %itanium_abi_triple -include-pch %t -verify %s -emit-llvm -o - -femit-all-decls -disable-llvm-passes | FileCheck --check-prefix=CHECK-LOAD %s

// RUN: %clang_cc1 -verify -fopenmp-simd -x c -emit-llvm %s -triple %itanium_abi_triple -o - -femit-all-decls -disable-llvm-passes | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -x c -triple %itanium_abi_triple -emit-pch -o %t %s -femit-all-decls -disable-llvm-passes
// RUN: %clang_cc1 -fopenmp-simd -x c -triple %itanium_abi_triple -include-pch %t -verify %s -emit-llvm -o - -femit-all-decls -disable-llvm-passes | FileCheck --check-prefix SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics

#ifndef HEADER
#define HEADER

// CHECK: [[SSS_INT:.+]] = type { i32 }
// CHECK-LOAD: [[SSS_INT:.+]] = type { i32 }

#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: }

#pragma omp declare reduction(fun : float : omp_out += omp_in) initializer(omp_priv = 15 + omp_orig)
// CHECK: define internal {{.*}}void @{{[^(]+}}(float* noalias, float* noalias)
// CHECK: [[ADD:%.+]] = fadd float
// CHECK-NEXT: store float [[ADD]], float*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK: define internal {{.*}}void @{{[^(]+}}(float* noalias, float* noalias)
// CHECK: [[ADD:%.+]] = fadd float 1.5
// CHECK-NEXT: store float [[ADD]], float*
// CHECK-NEXT: ret void
// CHECK-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(float* noalias, float* noalias)
// CHECK-LOAD: [[ADD:%.+]] = fadd float
// CHECK-LOAD-NEXT: store float [[ADD]], float*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }
// CHECK-LOAD: define internal {{.*}}void @{{[^(]+}}(float* noalias, float* noalias)
// CHECK-LOAD: [[ADD:%.+]] = fadd float 1.5
// CHECK-LOAD-NEXT: store float [[ADD]], float*
// CHECK-LOAD-NEXT: ret void
// CHECK-LOAD-NEXT: }

struct SSS {
  int field;
#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: 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: }
};

void init(struct SSS *priv, struct SSS orig);

#pragma omp declare reduction(fun : struct SSS : 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: }

// CHECK-LABEL: @main
// CHECK-LOAD-LABEL: @main
int main() {
#pragma omp declare reduction(fun : struct SSS : 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: }
  {
#pragma omp declare reduction(fun : struct SSS : 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: }
  }
  return 0;
}

// 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-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: }
#endif