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
