clang/test/OpenMP/loops_explicit_clauses_codegen.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
   2 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
   3 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
   4
   5 // RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
   6 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
   7 // RUN: %clang_cc1 -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
   8 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
   9 // expected-no-diagnostics
  10
  11
  12 #ifndef HEADER
  13 #define HEADER
  14
  15 #define N 10
  16 int foo();
  17 int bar();
  18 int k;
  19 // CHECK-LABEL: @main
  20 int main(int argc, char **argv) {
  21   foo();
  22 // CHECK: @{{.+}}foo
  23 // CHECK: call void @__kmpc_for_static_init_4(
  24 // CHECK-NOT: @k
  25 // CHECK: call void @__kmpc_for_static_fini(
  26 // CHECK-NOT: @k
  27 #pragma omp for private(k)
  28   for (k = 0; k < argc; k++)
  29     ;
  30   foo();
  31 // CHECK: @{{.+}}foo
  32 // CHECK: call void @__kmpc_for_static_init_8(
  33 // CHECK-NOT: @k
  34 // CHECK: call void @__kmpc_for_static_fini(
  35 // CHECK: store i32 %{{.+}}, ptr @k
  36 #pragma omp for lastprivate(k) collapse(2)
  37   for (int i = 0; i < 2; ++i)
  38     for (k = 0; k < argc; k++)
  39       ;
  40   foo();
  41 // CHECK: @{{.+}}foo
  42 // CHECK-NOT: @k{{.+}}!llvm.access.group
  43 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
  44 // CHECK-NOT: @k{{.+}}!llvm.access.group
  45 // CHECK: sdiv i32
  46 // CHECK: store i32 %{{.+}}, ptr @k,
  47 #pragma omp simd linear(k : 2)
  48   for (k = 0; k < argc; k++)
  49     bar();
  50 // CHECK: @{{.+}}foo
  51 // CHECK-NOT: @k{{.+}}!llvm.access.group
  52 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
  53 // CHECK-NOT: @k{{.+}}!llvm.access.group
  54 // CHECK: sdiv i32
  55 // CHECK: store i32 %{{.+}}, ptr @k,
  56   foo();
  57 #pragma omp simd lastprivate(k) collapse(2)
  58   for (int i = 0; i < 2; ++i)
  59     for (k = 0; k < argc; k++)
  60      bar() ;
  61   foo();
  62 // CHECK: @{{.+}}foo
  63 // CHECK-NOT: @k{{.+}}!llvm.access.group
  64 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
  65 // CHECK-NOT: @k{{.+}}!llvm.access.group
  66 // CHECK: sdiv i32
  67 // CHECK: store i32 %{{.+}}, ptr @k,
  68 #pragma omp simd
  69   for (k = 0; k < argc; k++)
  70     bar();
  71   foo();
  72 // CHECK: @{{.+}}foo
  73 // CHECK-NOT: @k{{.+}}!llvm.access.group
  74 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
  75 // CHECK-NOT: @k{{.+}}!llvm.access.group
  76 // CHECK: sdiv i32
  77 // CHECK: store i32 %{{.+}}, ptr @k,
  78 #pragma omp simd collapse(2)
  79   for (int i = 0; i < 2; ++i)
  80     for (k = 0; k < argc; k++)
  81       bar();
  82 // CHECK: @{{.+}}foo
  83   foo();
  84   return 0;
  85 }
  86
  87 struct S {
  88   int k;
  89   S(int argc) {
  90   foo();
  91 // CHECK: @{{.+}}foo
  92 // CHECK: call void @__kmpc_for_static_init_4(
  93 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
  94 // CHECK: call void @__kmpc_for_static_fini(
  95 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
  96 #pragma omp for private(k)
  97     for (k = 0; k < argc; k++)
  98       ;
  99   foo();
 100 // CHECK: @{{.+}}foo
 101 // CHECK: call void @__kmpc_for_static_init_8(
 102 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 103 // CHECK: call void @__kmpc_for_static_fini(
 104 #pragma omp for lastprivate(k) collapse(2)
 105     for (int i = 0; i < 2; ++i)
 106       for (k = 0; k < argc; k++)
 107         ;
 108   foo();
 109 // CHECK: @{{.+}}foo
 110 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 111 // CHECK: br i1
 112 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 113 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
 114 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 115 // CHECK: add nsw i32 %{{.+}}, 1
 116 // CHECK: br label {{.+}}, !llvm.loop
 117 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 118 #pragma omp simd linear(k : 2)
 119     for (k = 0; k < argc; k++)
 120       bar();
 121   foo();
 122 // CHECK: @{{.+}}foo
 123 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 124 // CHECK: br i1
 125 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 126 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
 127 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 128 // CHECK: add nsw i64 %{{.+}}, 1
 129 // CHECK: br label {{.+}}, !llvm.loop
 130 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 131 #pragma omp simd lastprivate(k) collapse(2)
 132     for (int i = 0; i < 2; ++i)
 133       for (k = 0; k < argc; k++)
 134         bar();
 135   foo();
 136 // CHECK: @{{.+}}foo
 137 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 138 // CHECK: br i1
 139 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 140 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
 141 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 142 // CHECK: add nsw i32 %{{.+}}, 1
 143 // CHECK: br label {{.+}}, !llvm.loop
 144 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 145 #pragma omp simd
 146     for (k = 0; k < argc; k++)
 147       bar();
 148   foo();
 149 // CHECK: @{{.+}}foo
 150 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 151 // CHECK: br i1
 152 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 153 // CHECK: i32 @{{.+}}bar{{.+}}!llvm.access.group
 154 // CHECK-NOT: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 155 // CHECK: add nsw i64 %{{.+}}, 1
 156 // CHECK: br label {{.+}}, !llvm.loop
 157 // CHECK: getelementptr inbounds %struct.S, ptr %{{.+}}, i32 0, i32 0
 158 #pragma omp simd collapse(2)
 159     for (int i = 0; i < 2; ++i)
 160       for (k = 0; k < argc; k++)
 161         bar();
 162 // CHECK: @{{.+}}foo
 163   foo();
 164   }
 165 } s(N);
 166
 167 #endif // HEADER