diff options
Diffstat (limited to 'contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_4.S')
| -rw-r--r-- | contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_4.S | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_4.S b/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_4.S new file mode 100644 index 000000000000..460b2bc1ed62 --- /dev/null +++ b/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_4.S @@ -0,0 +1,21 @@ +/*===-- sync_fetch_and_sub_4.S - ------------------------------------------===// + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + *===----------------------------------------------------------------------===// + * + * This file implements the __sync_fetch_and_sub_4 function for the ARM + * architecture. + * + *===----------------------------------------------------------------------===*/ + +#include "sync-ops.h" + +/* "subs" is 2 bytes shorter than "sub". */ +#define sub_4(rD, rN, rM) sub rD, rN, rM + +SYNC_OP_4(sub_4) + |