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 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 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
