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llvm-project/clang/test/OpenMP/single_codegen.cpp

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[OPENMP] Initial codegen for 'single' directive. This patch emits the following code for the single directive: #pragma omp single <body> <----> if(__kmpc_single(...)) { <body> __kmpc_end_single(...); } Differential Revision: http://reviews.llvm.org/D7045 llvm-svn: 228275
2015-02-05 14:35:41 +08:00
// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
// expected-no-diagnostics
Wrap clang module files in a Mach-O, ELF, or COFF container. This is a necessary prerequisite for debugging with modules. The .pcm files become containers that hold the serialized AST which allows us to store debug information in the module file that can be shared by all object files that were built importing the module. This reapplies r230044 with a fixed configure+make build and updated dependencies and testcase requirements. Over the last iteration this version adds - missing target requirements for testcases that specify an x86 triple, - a missing clangCodeGen.a dependency to libClang.a in the make build. rdar://problem/19104245 llvm-svn: 230423
2015-02-25 09:31:45 +08:00
// REQUIRES: x86-registered-target
[OPENMP] Initial codegen for 'single' directive. This patch emits the following code for the single directive: #pragma omp single <body> <----> if(__kmpc_single(...)) { <body> __kmpc_end_single(...); } Differential Revision: http://reviews.llvm.org/D7045 llvm-svn: 228275
2015-02-05 14:35:41 +08:00
#ifndef HEADER
#define HEADER
// CHECK: [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }
// CHECK: define void [[FOO:@.+]]()
void foo() {}
// CHECK-LABEL: @main
int main() {
// CHECK: [[A_ADDR:%.+]] = alloca i8
char a;
// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])
// CHECK: [[RES:%.+]] = call i32 @__kmpc_single([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])
// CHECK-NEXT: [[IS_SINGLE:%.+]] = icmp ne i32 [[RES]], 0
// CHECK-NEXT: br i1 [[IS_SINGLE]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]
// CHECK: [[THEN]]
// CHECK-NEXT: store i8 2, i8* [[A_ADDR]]
// CHECK-NEXT: call void @__kmpc_end_single([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])
// CHECK-NEXT: br label {{%?}}[[EXIT]]
// CHECK: [[EXIT]]
#pragma omp single
a = 2;
// CHECK: [[RES:%.+]] = call i32 @__kmpc_single([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])
// CHECK-NEXT: [[IS_SINGLE:%.+]] = icmp ne i32 [[RES]], 0
// CHECK-NEXT: br i1 [[IS_SINGLE]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]
// CHECK: [[THEN]]
// CHECK-NEXT: call void [[FOO]]()
// CHECK-NEXT: call void @__kmpc_end_single([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])
// CHECK-NEXT: br label {{%?}}[[EXIT]]
// CHECK: [[EXIT]]
#pragma omp single
foo();
// CHECK-NOT: call i32 @__kmpc_single
// CHECK-NOT: call void @__kmpc_end_single
return a;
}
#endif