arm-asm-variable.c revision 9cbe4f0ba01ec304e1e3d071c071f7bca33631c0 
1// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
2
3typedef long long int64_t;
4typedef unsigned int uint32_t;
5
6int64_t foo(int64_t v, volatile int64_t *p)
7{
8  register uint32_t rl asm("r1");
9  register uint32_t rh asm("r2");
10
11  int64_t r;
12  uint32_t t;
13
14  __asm__ __volatile__(							\
15		       "ldrexd%[_rl], %[_rh], [%[_p]]"			\
16		       : [_rl] "=&r" (rl), [_rh] "=&r" (rh)		\
17		       : [_p] "p" (p) : "memory");
18
19  // CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "={r1},={r2},r,~{memory}"(i64*
20
21  return r;
22}
23
24// Make sure we translate register names properly.
25void bar (void) {
26  register unsigned int rn asm("r14");
27  register unsigned int d asm("r2");
28
29  // CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
30  asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
31}
32