1 // RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
2
3 typedef long long int64_t;
4 typedef unsigned int uint32_t;
5
foo(int64_t v,volatile int64_t * p)6 int64_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.
bar(void)25 void 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