33 lines
872 B
C
33 lines
872 B
C
|
// REQUIRES: arm-registered-target
|
||
|
|
// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
|
||
|
|
|
||
|
|
typedef long long int64_t;
|
||
|
|
typedef unsigned int uint32_t;
|
||
|
|
|
||
|
|
int64_t foo(int64_t v, volatile int64_t *p)
|
||
|
|
{
|
||
|
|
register uint32_t rl asm("r1");
|
||
|
|
register uint32_t rh asm("r2");
|
||
|
|
|
||
|
|
int64_t r;
|
||
|
|
uint32_t t;
|
||
|
|
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
"ldrexd%[_rl], %[_rh], [%[_p]]" \
|
||
|
|
: [_rl] "=&r" (rl), [_rh] "=&r" (rh) \
|
||
|
|
: [_p] "p" (p) : "memory");
|
||
|
|
|
||
|
|
// CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "={r1},={r2},r,~{memory}"(i64*
|
||
|
|
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure we translate register names properly.
|
||
|
|
void bar (void) {
|
||
|
|
register unsigned int rn asm("r14");
|
||
|
|
register unsigned int d asm("r2");
|
||
|
|
|
||
|
|
// CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
|
||
|
|
asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
|
||
|
|
}
|