| // REQUIRES: x86-registered-target |
| // REQUIRES: nvptx-registered-target |
| // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -fcuda-is-device -verify %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s |
| |
| __attribute__((device)) register long global_dev_reg asm("r0"); |
| __attribute__((device)) register long |
| global_dev_hreg asm("rsp"); // device-side error |
| |
| register long global_host_reg asm("rsp"); |
| register long global_host_dreg asm("r0"); // host-side error |
| |
| __attribute__((device)) void df() { |
| register long local_dev_reg asm("r0"); |
| register long local_host_reg asm("rsp"); // device-side error |
| short h; |
| // asm with PTX constraints. Some of them are PTX-specific. |
| __asm__("dont care" : "=h"(h) : "f"(0.0), "d"(0.0), "h"(0), "r"(0), "l"(0)); |
| } |
| |
| void hf() { |
| register long local_dev_reg asm("r0"); // host-side error |
| register long local_host_reg asm("rsp"); |
| int a; |
| // Asm with x86 constraints and registers that are not supported by PTX. |
| __asm__("dont care" : "=a"(a) : "a"(0), "b"(0), "c"(0) : "flags"); |
| } |
| |
| // Check errors in named register variables. |
| // We should only see errors relevant to current compilation mode. |
| #if defined(__CUDA_ARCH__) |
| // Device-side compilation: |
| // expected-error@8 {{unknown register name 'rsp' in asm}} |
| // expected-error@15 {{unknown register name 'rsp' in asm}} |
| #else |
| // Host-side compilation: |
| // expected-error@11 {{unknown register name 'r0' in asm}} |
| // expected-error@22 {{unknown register name 'r0' in asm}} |
| #endif |
