[OPENMP] Codegen for `omp declare target` construct.
Added initial codegen for device side of declarations inside `omp
declare target` construct + codegen for implicit `declare target`
functions, which are used in the target regions.
llvm-svn: 327636
diff --git a/clang/test/OpenMP/declare_target_codegen.cpp b/clang/test/OpenMP/declare_target_codegen.cpp
new file mode 100644
index 0000000..ad6718c
--- /dev/null
+++ b/clang/test/OpenMP/declare_target_codegen.cpp
@@ -0,0 +1,66 @@
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -emit-pch -o %t
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -include-pch %t -o - | FileCheck %s
+
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o -| FileCheck %s --check-prefix SIMD-ONLY
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -emit-pch -o %t
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -include-pch %t -verify -o - | FileCheck %s --check-prefix SIMD-ONLY
+
+// expected-no-diagnostics
+
+// SIMD-ONLY-NOT: {{__kmpc|__tgt}}
+
+// CHECK-NOT: define {{.*}}{{baz1|baz4|maini1}}
+// CHECK-DAG: @{{.*}}maini1{{.*}}aaa = internal global i64 23,
+// CHECK-DAG: @b = global i32 15,
+// CHECK-DAG: @d = global i32 0,
+// CHECK-DAG: @c = external global i32,
+
+// CHECK-DAG: define {{.*}}i32 @{{.*}}{{foo|bar|baz2|baz3}}{{.*}}()
+
+#ifndef HEADER
+#define HEADER
+
+int foo();
+
+int baz1();
+
+int baz2();
+
+int baz4() { return 5; }
+
+#pragma omp declare target
+int foo() { return 0; }
+int b = 15;
+int d;
+#pragma omp end declare target
+int c;
+
+int bar() { return 1 + foo() + bar() + baz1() + baz2(); }
+
+int maini1() {
+ int a;
+ static long aa = 32;
+// CHECK-DAG: define void @__omp_offloading_{{.*}}maini1{{.*}}_l[[@LINE+1]](i32* dereferenceable{{.*}}, i64 {{.*}}, i64 {{.*}})
+#pragma omp target map(tofrom \
+ : a)
+ {
+ static long aaa = 23;
+ a = foo() + bar() + b + c + d + aa + aaa;
+ }
+ return baz4();
+}
+
+int baz3();
+int baz2() {
+// CHECK-DAG: define void @__omp_offloading_{{.*}}baz2{{.*}}_l[[@LINE+1]](i64 {{.*}})
+#pragma omp target
+ ++c;
+ return 2 + baz3();
+}
+int baz3() { return 2 + baz2(); }
+
+// CHECK-NOT: define {{.*}}{{baz1|baz4|maini1}}
+#endif // HEADER