llvm-project/clang/test/AST/ast-print-attr-knr.c
Giuliano Belinassi 46f3ade508 Fix ast print of variables with attributes
Previously clang AST prints the following declaration:

int fun_var_unused() {

  int x __attribute__((unused)) = 0;
  return x;
}

and

int __declspec(thread) x = 0;

as:

int fun_var_unused() {

  int x = 0 __attribute__((unused));
  return x;
}

and

int x = __declspec(thread) 0;

which is rejected by C/C++ parser. This patch modifies the logic to
print old C attributes for variables as:

int __attribute__((unused)) x = 0;
and the __declspec case as:

int __declspec(thread) x = 0;
Fixes: https://github.com/llvm/llvm-project/issues/59973

Previous version: D141714.

Differential Revision:https://reviews.llvm.org/D141714
2023-09-07 13:35:50 -07:00

18 lines
521 B
C

// This file contain tests for attribute arguments on K&R functions.
// RUN: %clang_cc1 -ast-print -x c -std=c89 -fms-extensions %s -o - | FileCheck %s
// CHECK: int knr(i)
// CHECK-NEXT: int i __attribute__((unused));
// CHECK-NEXT: {
// CHECK-NEXT: return 0;
// CHECK-NEXT: }
int knr(i) int i __attribute__((unused)); { return 0; }
// CHECK: __attribute__((unused)) int knr2(i)
// CHECK-NEXT: int i;
// CHECK-NEXT: {
// CHECK-NEXT: return 0;
// CHECK-NEXT: }
__attribute__((unused)) int knr2(i) int i; { return 0; }