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