minix/external/bsd/llvm/dist/clang/test/CodeGen/arm-asm-variable.c
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

32 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));
}