27 lines
917 B
C
27 lines
917 B
C
// 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). [-Wsync-alignment]
|
|
return __sync_fetch_and_add(&Ptr, 1);
|
|
}
|
|
|
|
__int128 f2() {
|
|
// CHECK: warning: __sync builtin operation MUST have natural alignment (consider using __atomic). [-Wsync-alignment]
|
|
return __sync_sub_and_fetch(&Ptr, 1);
|
|
}
|
|
|
|
__int128 f3() {
|
|
// CHECK: warning: __sync builtin operation MUST have natural alignment (consider using __atomic). [-Wsync-alignment]
|
|
return __sync_val_compare_and_swap(&Ptr, 0, 1);
|
|
}
|
|
|
|
void f4() {
|
|
// CHECK: warning: __sync builtin operation MUST have natural alignment (consider using __atomic). [-Wsync-alignment]
|
|
__sync_lock_release(&Ptr);
|
|
}
|