1*f4a2713aSLionel Sambuc // REQUIRES: arm-registered-target
2*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
3*f4a2713aSLionel Sambuc
4*f4a2713aSLionel Sambuc typedef long long int64_t;
5*f4a2713aSLionel Sambuc typedef unsigned int uint32_t;
6*f4a2713aSLionel Sambuc
foo(int64_t v,volatile int64_t * p)7*f4a2713aSLionel Sambuc int64_t foo(int64_t v, volatile int64_t *p)
8*f4a2713aSLionel Sambuc {
9*f4a2713aSLionel Sambuc register uint32_t rl asm("r1");
10*f4a2713aSLionel Sambuc register uint32_t rh asm("r2");
11*f4a2713aSLionel Sambuc
12*f4a2713aSLionel Sambuc int64_t r;
13*f4a2713aSLionel Sambuc uint32_t t;
14*f4a2713aSLionel Sambuc
15*f4a2713aSLionel Sambuc __asm__ __volatile__( \
16*f4a2713aSLionel Sambuc "ldrexd%[_rl], %[_rh], [%[_p]]" \
17*f4a2713aSLionel Sambuc : [_rl] "=&r" (rl), [_rh] "=&r" (rh) \
18*f4a2713aSLionel Sambuc : [_p] "p" (p) : "memory");
19*f4a2713aSLionel Sambuc
20*f4a2713aSLionel Sambuc // CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "={r1},={r2},r,~{memory}"(i64*
21*f4a2713aSLionel Sambuc
22*f4a2713aSLionel Sambuc return r;
23*f4a2713aSLionel Sambuc }
24*f4a2713aSLionel Sambuc
25*f4a2713aSLionel Sambuc // Make sure we translate register names properly.
bar(void)26*f4a2713aSLionel Sambuc void bar (void) {
27*f4a2713aSLionel Sambuc register unsigned int rn asm("r14");
28*f4a2713aSLionel Sambuc register unsigned int d asm("r2");
29*f4a2713aSLionel Sambuc
30*f4a2713aSLionel Sambuc // CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
31*f4a2713aSLionel Sambuc asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
32*f4a2713aSLionel Sambuc }
33