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llvm-project/clang/test/OpenMP/atomic_ast_print.cpp
Alexey Bataev cbecfdfefe [OpenMP] Fix trailing space when printing pragmas, by Joel. E. Denny 
Summary:
-ast-print prints omp pragmas with a trailing space.  While this
behavior is likely of little concern to most users, surely it's
unintentional, and it's annoying for some source-level work I'm
pursuing.  This patch focuses on omp pragmas, but it also fixes
init_seg and loop hint pragmas because they share implementation.

The testing strategy here is to add usually just one '{{$}}' per
relevant -ast-print test file.  This seems to achieve good code
coverage.  However, this strategy is probably easy to forget as the
tests evolve.  That's probably fine as this fix is far from critical.
The main goal of the testing is to aid the initial review.

This patch also adds a fixme for "#pragma unroll", which prints as
"#pragma unroll (enable)", which is invalid syntax.

Reviewers: ABataev

Reviewed By: ABataev

Subscribers: guansong, cfe-commits

Differential Revision: https://reviews.llvm.org/D43204

llvm-svn: 325145
2018-02-14 17:38:47 +00:00

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// RUN: %clang_cc1 -verify -fopenmp -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp-simd -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
template <class T>
T foo(T argc) {
T b = T();
T a = T();
#pragma omp atomic
a++;
#pragma omp atomic read
a = argc;
#pragma omp atomic write
a = argc + argc;
#pragma omp atomic update
a = a + argc;
#pragma omp atomic capture
a = b++;
#pragma omp atomic capture
{
a = b;
b++;
}
#pragma omp atomic seq_cst
a++;
#pragma omp atomic read seq_cst
a = argc;
#pragma omp atomic seq_cst write
a = argc + argc;
#pragma omp atomic update seq_cst
a = a + argc;
#pragma omp atomic seq_cst capture
a = b++;
#pragma omp atomic capture seq_cst
{
a = b;
b++;
}
return T();
}
// CHECK: T a = T();
// CHECK-NEXT: #pragma omp atomic{{$}}
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
// CHECK-NEXT: #pragma omp atomic seq_cst
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read seq_cst
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic seq_cst write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update seq_cst
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic seq_cst capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture seq_cst
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
// CHECK: int a = int();
// CHECK-NEXT: #pragma omp atomic
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
// CHECK-NEXT: #pragma omp atomic seq_cst
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read seq_cst
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic seq_cst write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update seq_cst
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic seq_cst capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture seq_cst
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
int main(int argc, char **argv) {
int b = 0;
int a = 0;
// CHECK: int a = 0;
#pragma omp atomic
a++;
#pragma omp atomic read
a = argc;
#pragma omp atomic write
a = argc + argc;
#pragma omp atomic update
a = a + argc;
#pragma omp atomic capture
a = b++;
#pragma omp atomic capture
{
a = b;
b++;
}
#pragma omp atomic seq_cst
a++;
#pragma omp atomic read seq_cst
a = argc;
#pragma omp atomic seq_cst write
a = argc + argc;
#pragma omp atomic update seq_cst
a = a + argc;
#pragma omp atomic seq_cst capture
a = b++;
#pragma omp atomic capture seq_cst
{
a = b;
b++;
}
// CHECK-NEXT: #pragma omp atomic
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
// CHECK-NEXT: #pragma omp atomic seq_cst
// CHECK-NEXT: a++;
// CHECK-NEXT: #pragma omp atomic read seq_cst
// CHECK-NEXT: a = argc;
// CHECK-NEXT: #pragma omp atomic seq_cst write
// CHECK-NEXT: a = argc + argc;
// CHECK-NEXT: #pragma omp atomic update seq_cst
// CHECK-NEXT: a = a + argc;
// CHECK-NEXT: #pragma omp atomic seq_cst capture
// CHECK-NEXT: a = b++;
// CHECK-NEXT: #pragma omp atomic capture seq_cst
// CHECK-NEXT: {
// CHECK-NEXT: a = b;
// CHECK-NEXT: b++;
// CHECK-NEXT: }
return foo(a);
}
#endif
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