Files
clang-p2996/clang/test/CodeGen/linux-arm-atomic.c
Rafael Espindola 92dbc3183f Use atomic instructions on linux thumb v7.
This matches gcc's behaviour. The patch also explicitly parses the version so
that this keeps working when we add support for v8.

llvm-svn: 181750
2013-05-14 00:44:24 +00:00

12 lines
482 B
C

// RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-unknown-linux | FileCheck %s
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv6-unknown-linux | FileCheck %s
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-unknown-linux | FileCheck %s
typedef int _Atomic_word;
_Atomic_word exchange_and_add(volatile _Atomic_word *__mem, int __val) {
return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL);
}
// CHECK: define {{.*}} @exchange_and_add
// CHECK: atomicrmw {{.*}} add