1 // REQUIRES: arm-registered-target
2 // RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
3
4 typedef long long int64_t;
5 typedef unsigned int uint32_t;
6
foo(int64_t v,volatile int64_t * p)7 int64_t foo(int64_t v, volatile int64_t *p)
8 {
9 register uint32_t rl asm("r1");
10 register uint32_t rh asm("r2");
11
12 int64_t r;
13 uint32_t t;
14
15 __asm__ __volatile__( \
16 "ldrexd%[_rl], %[_rh], [%[_p]]" \
17 : [_rl] "=&r" (rl), [_rh] "=&r" (rh) \
18 : [_p] "p" (p) : "memory");
19
20 // CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "=&{r1},=&{r2},r,~{memory}"(i64*
21
22 return r;
23 }
24
25 // Make sure we translate register names properly.
bar(void)26 void bar (void) {
27 register unsigned int rn asm("r14");
28 register unsigned int d asm("r2");
29
30 // CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
31 asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
32 }
33