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 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. 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
