1 // REQUIRES: x86-registered-target
2 // REQUIRES: nvptx-registered-target
3 // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -fcuda-is-device -verify %s
4 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s
5
6 __attribute__((device)) register long global_dev_reg asm("r0");
7 __attribute__((device)) register long
8 global_dev_hreg asm("rsp"); // device-side error
9
10 register long global_host_reg asm("rsp");
11 register long global_host_dreg asm("r0"); // host-side error
12
df()13 __attribute__((device)) void df() {
14 register long local_dev_reg asm("r0");
15 register long local_host_reg asm("rsp"); // device-side error
16 short h;
17 // asm with PTX constraints. Some of them are PTX-specific.
18 __asm__("dont care" : "=h"(h) : "f"(0.0), "d"(0.0), "h"(0), "r"(0), "l"(0));
19 }
20
hf()21 void hf() {
22 register long local_dev_reg asm("r0"); // host-side error
23 register long local_host_reg asm("rsp");
24 int a;
25 // Asm with x86 constraints and registers that are not supported by PTX.
26 __asm__("dont care" : "=a"(a) : "a"(0), "b"(0), "c"(0) : "flags");
27 }
28
29 // Check errors in named register variables.
30 // We should only see errors relevant to current compilation mode.
31 #if defined(__CUDA_ARCH__)
32 // Device-side compilation:
33 // expected-error@8 {{unknown register name 'rsp' in asm}}
34 // expected-error@15 {{unknown register name 'rsp' in asm}}
35 #else
36 // Host-side compilation:
37 // expected-error@11 {{unknown register name 'r0' in asm}}
38 // expected-error@22 {{unknown register name 'r0' in asm}}
39 #endif
40