[OPENMP] Initial codegen for `teams distribute simd` directive.

Host + default devices codegen for `teams distribute simd` directive.

llvm-svn: 319896
diff --git a/clang/test/OpenMP/teams_distribute_simd_codegen.cpp b/clang/test/OpenMP/teams_distribute_simd_codegen.cpp
new file mode 100644
index 0000000..cad5854
--- /dev/null
+++ b/clang/test/OpenMP/teams_distribute_simd_codegen.cpp
@@ -0,0 +1,251 @@
+// expected-no-diagnostics
+#ifndef HEADER
+#define HEADER
+// Test host codegen.
+// RUN: %clang_cc1 -DCK1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-64
+// RUN: %clang_cc1 -DCK1 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK1 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-64
+// RUN: %clang_cc1 -DCK1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-32
+// RUN: %clang_cc1 -DCK1 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK1 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-32
+#ifdef CK1
+
+int a[100];
+
+// CK1: define {{.*}}i32 @{{.+}}teams_argument_globali(
+int teams_argument_global(int n) {
+  int i;
+  int te = n / 128;
+  int th = 128;
+  // discard n_addr and i
+  // CK1: alloca i32,
+  // CK1: alloca i32,
+  // CK1: [[TE:%.+]] = alloca i32,
+  // CK1: [[TH:%.+]] = alloca i32,
+  // CK1: [[TE_CAST:%.+]] = alloca i{{32|64}},
+  // CK1: [[TH_CAST:%.+]] = alloca i{{32|64}},
+  // CK1: [[TE_PAR:%.+]] = load{{.+}}, {{.+}} [[TE_CAST]],
+  // CK1: [[TH_PAR:%.+]] = load{{.+}}, {{.+}} [[TH_CAST]],
+
+  // CK1: call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 5, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}@{{[^,]+}}, i32 0, i32 0), i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 {{.+}}, i32 {{.+}})
+
+  // CK1: call void @[[OFFL1:.+]](i{{32|64}} [[TE_PAR]], i{{32|64}} [[TH_PAR]],
+  #pragma omp target
+  #pragma omp teams distribute simd num_teams(te), thread_limit(th) aligned(a) simdlen(16) linear(i)
+  for(i = 0; i < n; i++) {
+    a[i] = 0;
+  }
+
+  // CK1: call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 2, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}@{{[^,]+}}, i32 0, i32 0), i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 0, i32 0)
+  // CK1: call void @[[OFFL2:.+]](i{{64|32}} %{{.+}})
+  #pragma omp target
+  {{{
+  #pragma omp teams distribute simd safelen(32)
+  for(int i = 0; i < n; i++) {
+    a[i] = 0;
+  }
+  }}}
+
+  // outlined target regions
+  // CK1: define internal void @[[OFFL1]](i{{32|64}} [[TE_ARG:%.+]], i{{32|64}} [[TH_ARG:%.+]], [100 x i{{32|64}}]* {{.+}}, i{{32|64}} {{.+}}, {{.+}})
+  // CK1: [[TE_ADDR:%.+]] = alloca i{{32|64}},
+  // CK1: [[TH_ADDR:%.+]] = alloca i{{32|64}},
+  // CK1: store{{.+}} [[TE_ARG]], {{.+}} [[TE_ADDR]],
+  // CK1: store{{.+}} [[TH_ARG]], {{.+}} [[TH_ADDR]],
+  // CK1-64: [[TE_CONV:%.+]] = bitcast{{.+}} [[TE_ADDR]] to
+  // CK1-64: [[TH_CONV:%.+]] = bitcast{{.+}} [[TH_ADDR]] to
+  // CK1-64: [[TE_VAL:%.+]] = load i32, i32* [[TE_CONV]],
+  // CK1-64: [[TH_VAL:%.+]] = load i32, i32* [[TH_CONV]],
+  // CK1-32: [[TE_VAL:%.+]] = load i32, i32* [[TE_ADDR]],
+  // CK1-32: [[TH_VAL:%.+]] = load i32, i32* [[TH_ADDR]],
+  // CK1: {{%.+}} = call i32 @__kmpc_push_num_teams({{.+}}, {{.+}}, i32 [[TE_VAL]], i32 [[TH_VAL]])
+  // CK1: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 3, {{.+}} @[[OUTL1:.+]] to {{.+}}, {{.+}}, {{.+}})
+  // CK1: ret void
+
+  // CK1: define internal void @[[OUTL1]]({{.+}})
+  // CK1: call void @__kmpc_for_static_init_4(
+  // CK1: call void @__kmpc_for_static_fini(
+  // CK1: ret void
+
+  // CK1: define internal void @[[OFFL2]]({{.+}}, {{.+}})
+  // CK1: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 2, {{.+}} @[[OUTL2:.+]] to {{.+}}, {{.+}}, {{.+}})
+  // CK1: ret void
+
+  // CK1: define internal void @[[OUTL2]]({{.+}})
+  // CK1: call void @__kmpc_for_static_init_4(
+  // CK1: call void @__kmpc_for_static_fini(
+  // CK1: ret void
+
+  return a[0];
+}
+
+// CK1-DAG: !{!"llvm.loop.vectorize.width", i32 16}
+// CK1-DAG: !{!"llvm.loop.vectorize.enable", i1 true}
+// CK1-DAG: !{!"llvm.loop.vectorize.width", i32 32}
+
+#endif // CK1
+
+// Test host codegen.
+// RUN: %clang_cc1 -DCK2 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK2 --check-prefix CK2-64
+// RUN: %clang_cc1 -DCK2 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK2 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK2 --check-prefix CK2-64
+// RUN: %clang_cc1 -DCK2 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK2 --check-prefix CK2-32
+// RUN: %clang_cc1 -DCK2 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK2 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK2 --check-prefix CK2-32
+#ifdef CK2
+
+// CK2: define {{.*}}i32 @{{.+}}teams_local_argv(
+int teams_local_arg(void) {
+  int n = 100;
+  int a[n];
+
+  // CK2: call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 3, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}, i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 0, i32 0)
+  // CK2: call void @[[OFFL1:.+]](i{{64|32}} %{{.+}})
+  #pragma omp target
+  #pragma omp teams distribute simd
+  for(int i = 0; i < n; i++) {
+    a[i] = 0;
+  }
+
+  // outlined target region
+  // CK2: define internal void @[[OFFL1]]({{.+}}, {{.+}})
+  // CK2: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 3, {{.+}} @[[OUTL1:.+]] to {{.+}}, {{.+}}, {{.+}})
+  // CK2: ret void
+
+  // CK2: define internal void @[[OUTL1]]({{.+}})
+  // CK2: call void @__kmpc_for_static_init_4(
+  // CK2: call void @__kmpc_for_static_fini(
+  // CK2: ret void  
+
+  return a[0];
+}
+// CK2: !{!"llvm.loop.vectorize.enable", i1 true}
+#endif // CK2
+
+// Test host codegen.
+// RUN: %clang_cc1 -DCK3 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK3 --check-prefix CK3-64
+// RUN: %clang_cc1 -DCK3 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK3 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK3 --check-prefix CK3-64
+// RUN: %clang_cc1 -DCK3 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK3 --check-prefix CK3-32
+// RUN: %clang_cc1 -DCK3 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK3 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK3 --check-prefix CK3-32
+#ifdef CK3
+
+// CK3: [[SSI:%.+]] = type { [{{.+}} x i32], float }
+
+template <typename T, int X, long long Y>
+struct SS{
+  T a[X];
+  float b;
+  // CK3: define {{.*}}i32 @{{.+}}foo{{.+}}(
+  int foo(void) {
+
+  // CK3: call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 1, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}@{{[^,]+}}, i32 0, i32 0), i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 0, i32 0)
+  // CK3: call void @[[OFFL1:.+]]([[SSI]]* %{{.+}})
+    #pragma omp target
+    #pragma omp teams distribute simd
+    for(int i = 0; i < X; i++) {
+      a[i] = (T)0;
+    }
+
+      // outlined target region
+  // CK3: define internal void @[[OFFL1]]([[SSI]]* {{.+}})
+  // CK3: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 1, {{.+}} @[[OUTL1:.+]] to {{.+}}, {{.+}}, {{.+}})
+  // CK3: ret void
+
+  // CK3: define internal void @[[OUTL1]]({{.+}})
+  // CK3: call void @__kmpc_for_static_init_4(
+  // CK3: call void @__kmpc_for_static_fini(
+  // CK3: ret void  
+
+    return a[0];
+  }
+};
+
+int teams_template_struct(void) {
+  SS<int, 123, 456> V;
+  return V.foo();
+
+}
+// CK3: !{!"llvm.loop.vectorize.enable", i1 true}
+#endif // CK3
+
+// Test host codegen.
+// RUN: %clang_cc1 -DCK4 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK4 --check-prefix CK4-64
+// RUN: %clang_cc1 -DCK4 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK4 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK4 --check-prefix CK4-64
+// RUN: %clang_cc1 -DCK4 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CK4 --check-prefix CK4-32
+// RUN: %clang_cc1 -DCK4 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -DCK4 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CK4 --check-prefix CK4-32
+
+#ifdef CK4
+
+template <typename T, int n>
+int tmain(T argc) {
+  T a[n];
+  int te = n/128;
+  int th = 128;
+#pragma omp target
+#pragma omp teams distribute simd num_teams(te) thread_limit(th)
+  for(int i = 0; i < n; i++) {
+    a[i] = (T)0;
+  }
+  return 0;
+}
+
+int main (int argc, char **argv) {
+  int n = 100;
+  int a[n];
+#pragma omp target
+#pragma omp teams distribute simd
+  for(int i = 0; i < n; i++) {
+    a[i] = 0;
+  }
+  return tmain<int, 10>(argc);
+}
+
+// CK4:  define {{.*}}i32 @{{[^,]+}}(i{{.+}}{{.+}} %[[ARGC:.+]], {{.+}})
+// CK4:   call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 3, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}, i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 0, i32 0)
+// CK4: call void @[[OFFL1:.+]]({{.+}})
+// CK4: {{%.+}} = call{{.*}} i32 @[[TMAIN:.+]]({{.+}})
+// CK4:  ret
+
+// CK4:  define {{.*}}void @[[OFFL1]]({{.+}})
+// CK4: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 3, {{.+}} @[[OUTL1:.+]] to {{.+}}, {{.+}}, {{.+}})
+// CK4: ret void
+
+// CK4: define internal void @[[OUTL1]]({{.+}})
+// CK4: call void @__kmpc_for_static_init_4(
+// CK4: call void @__kmpc_for_static_fini(
+// CK4: ret void
+
+// CK4:  define {{.*}}i32 @[[TMAIN]]({{.+}})
+// CK4:   call i32 @__tgt_target_teams(i64 -1, i8* @{{[^,]+}}, i32 3, i8** %{{[^,]+}}, i8** %{{[^,]+}}, i{{64|32}}* {{.+}}@{{[^,]+}}, i32 0, i32 0), i64* {{.+}}@{{[^,]+}}, i32 0, i32 0), i32 {{.+}}, i32 {{.+}})
+// CK4: call void @[[OFFLT:.+]]({{.+}})
+// CK4:  ret
+// CK4-NEXT: }
+
+// CK4: define {{.*}}void @[[OFFLT]](i{{32|64}} [[TE_ARG:%.+]], i{{32|64}} [[TH_ARG:%.+]], {{.+}})
+// CK4: [[TE_ADDR:%.+]] = alloca i{{32|64}},
+// CK4: [[TH_ADDR:%.+]] = alloca i{{32|64}},
+// CK4: store{{.+}} [[TE_ARG]], {{.+}} [[TE_ADDR]],
+// CK4: store{{.+}} [[TH_ARG]], {{.+}} [[TH_ADDR]],
+// CK4-64: [[TE_CONV:%.+]] = bitcast{{.+}} [[TE_ADDR]] to
+// CK4-64: [[TH_CONV:%.+]] = bitcast{{.+}} [[TH_ADDR]] to
+// CK4-64: [[TE_VAL:%.+]] = load i32, i32* [[TE_CONV]],
+// CK4-64: [[TH_VAL:%.+]] = load i32, i32* [[TH_CONV]],
+// CK4-32: [[TE_VAL:%.+]] = load i32, i32* [[TE_ADDR]],
+// CK4-32: [[TH_VAL:%.+]] = load i32, i32* [[TH_ADDR]],
+// CK4: {{%.+}} = call i32 @__kmpc_push_num_teams({{.+}}, {{.+}}, i32 [[TE_VAL]], i32 [[TH_VAL]])
+// CK4: call void {{.+}} @__kmpc_fork_teams({{.+}}, i32 1, {{.+}} @[[OUTLT:.+]] to {{.+}}, {{.+}}, {{.+}})
+// CK4: ret void
+
+// CK4: define internal void @[[OUTLT]]({{.+}})
+// CK4: call void @__kmpc_for_static_init_4(
+// CK4: call void @__kmpc_for_static_fini(
+// CK4: ret void
+
+// CK4: !{!"llvm.loop.vectorize.enable", i1 true}
+#endif // CK4
+#endif
+