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