diff options
Diffstat (limited to 'test/CodeGen/arm-asm-warn.c')
| -rw-r--r-- | test/CodeGen/arm-asm-warn.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/test/CodeGen/arm-asm-warn.c b/test/CodeGen/arm-asm-warn.c index 0c4e97a..9b52dd6 100644 --- a/test/CodeGen/arm-asm-warn.c +++ b/test/CodeGen/arm-asm-warn.c @@ -1,7 +1,20 @@ // REQUIRES: arm-registered-target // RUN: %clang_cc1 -triple armv7 %s -emit-llvm -o /dev/null -// <rdar://problem/12284092> +char bar(); + +void t1(int x, char y) { + __asm__ volatile("mcr p15, 0, %1, c9, c12, 5;" + "mrc p15, 0, %0, c9, c13, 2;" + : "=r" (x) + : "r" (bar())); // no warning + __asm__ volatile("foo %0, %1" + : "+r" (x), + "+r" (y) + :); +} + +// <rdar://problem/12284092> typedef __attribute__((neon_vector_type(2))) long long int64x2_t; typedef struct int64x2x4_t { int64x2_t val[4]; @@ -9,10 +22,10 @@ typedef struct int64x2x4_t { int64x2x4_t t2(const long long a[]) { int64x2x4_t r; __asm__("vldm %[a], { %q[r0], %q[r1], %q[r2], %q[r3] }" - : [r0] "=r"(r.val[0]), // expected-warning {{the size being stored is truncated, use a modifier to specify the size}} - [r1] "=r"(r.val[1]), // expected-warning {{the size being stored is truncated, use a modifier to specify the size}} - [r2] "=r"(r.val[2]), // expected-warning {{the size being stored is truncated, use a modifier to specify the size}} - [r3] "=r"(r.val[3]) // expected-warning {{the size being stored is truncated, use a modifier to specify the size}} + : [r0] "=r"(r.val[0]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}} + [r1] "=r"(r.val[1]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}} + [r2] "=r"(r.val[2]), // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}} + [r3] "=r"(r.val[3]) // expected-warning {{the value is truncated when put into register, use a modifier to specify the size}} : [a] "r"(a)); return r; } |
