1 // REQUIRES: arm-registered-target
2 // RUN: %clang_cc1 -triple armv7 %s -emit-llvm -o /dev/null
3 
4 char bar();
5 
6 void t1(int x, char y) {
7   __asm__ volatile("mcr p15, 0, %1, c9, c12, 5;"
8                    "mrc p15, 0, %0, c9, c13, 2;"
9                    : "=r" (x)
10                    : "r" (bar())); // no warning
11   __asm__ volatile("foo %0, %1"
12                    : "+r" (x),
13                      "+r" (y)
14                    :);
15 }
16 
17 // <rdar://problem/12284092>
18 typedef __attribute__((neon_vector_type(2))) long long int64x2_t;
19 typedef struct int64x2x4_t {
20   int64x2_t val[4];
21 } int64x2x4_t;
22 int64x2x4_t t2(const long long a[]) {
23   int64x2x4_t r;
24   __asm__("vldm %[a], { %q[r0], %q[r1], %q[r2], %q[r3] }"
25           : [r0] "=r"(r.val[0]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
26             [r1] "=r"(r.val[1]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
27             [r2] "=r"(r.val[2]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
28             [r3] "=r"(r.val[3])  // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}}
29           : [a] "r"(a));
30   return r;
31 }
32