File: sync-builtins-i128-8Al.c

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (27 lines) | stat: -rw-r--r-- 837 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
// RUN: %clang_cc1 -triple s390x-linux-gnu -O1 -emit-llvm %s -o - 2>&1 | FileCheck %s
//
// Test that an underaligned 16 byte __sync gives a warning.

#include <stdint.h>

__int128 Ptr __attribute__((aligned(8)));

__int128 f1() {
// CHECK: warning: __sync builtin operation must have natural alignment (consider using __atomic)
  return __sync_fetch_and_add(&Ptr, 1);
}

__int128 f2() {
// CHECK: warning: __sync builtin operation must have natural alignment (consider using __atomic)
  return __sync_sub_and_fetch(&Ptr, 1);
}

__int128 f3() {
// CHECK: warning: __sync builtin operation must have natural alignment (consider using __atomic)
  return __sync_val_compare_and_swap(&Ptr, 0, 1);
}

void f4() {
// CHECK: warning: __sync builtin operation must have natural alignment (consider using __atomic)
  __sync_lock_release(&Ptr);
}