// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s #include #define ldrex_func(p, rl, rh) \ __asm__ __volatile__( \ "ldrexd%[_rl], %[_rh], [%[_p]]" \ : [_rl] "=&r" (rl), [_rh] "=&r" (rh) \ : [_p] "p" (p) : "memory") 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: %0 = call %0 asm sideeffect "ldrexd$0, $1, [$2]", "={r1},={r2},r,~{memory}"(i64* return r; }