1*67e74705SXin Li // Verify that we do check for constraints in device-side inline
2*67e74705SXin Li // assembly. Passing an illegal input/output constraint and look
3*67e74705SXin Li // for corresponding error
4*67e74705SXin Li // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -fcuda-is-device -verify %s
5*67e74705SXin Li
df()6*67e74705SXin Li __attribute__((device)) void df() {
7*67e74705SXin Li short h;
8*67e74705SXin Li int a;
9*67e74705SXin Li // asm with PTX constraints. Some of them are PTX-specific.
10*67e74705SXin Li __asm__("output constraints"
11*67e74705SXin Li : "=h"(h), // .u16 reg, OK
12*67e74705SXin Li "=a"(a) // expected-error {{invalid output constraint '=a' in asm}}
13*67e74705SXin Li : // None
14*67e74705SXin Li );
15*67e74705SXin Li __asm__("input constraints"
16*67e74705SXin Li : // None
17*67e74705SXin Li : "f"(0.0), // .f32 reg, OK
18*67e74705SXin Li "d"(0.0), // .f64 reg, OK
19*67e74705SXin Li "h"(0), // .u16 reg, OK
20*67e74705SXin Li "r"(0), // .u32 reg, OK
21*67e74705SXin Li "l"(0), // .u64 reg, OK
22*67e74705SXin Li "a"(0) // expected-error {{invalid input constraint 'a' in asm}}
23*67e74705SXin Li );
24*67e74705SXin Li }
25