|  | // REQUIRES: x86-registered-target | 
|  | // REQUIRES: nvptx-registered-target | 
|  |  | 
|  | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | \ | 
|  | // RUN:  FileCheck --check-prefixes=HOST,BOTH %s | 
|  | // RUN: %clang_cc1 -fcuda-is-device -triple nvptx64-nvidia-cuda \ | 
|  | // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=DEVICE,BOTH | 
|  |  | 
|  | // BOTH-LABEL: define{{.*}} float @logf(float | 
|  |  | 
|  | // logf() should be calling itself recursively as we don't have any standard | 
|  | // library on device side. | 
|  | // DEVICE: call contract float @logf(float | 
|  | extern "C" __attribute__((device)) float logf(float __x) { return logf(__x); } | 
|  |  | 
|  | // NOTE: this case is to illustrate the expected differences in behavior between | 
|  | // the host and device. In general we do not mess with host-side standard | 
|  | // library. | 
|  | // | 
|  | // Host is assumed to have standard library, so logf() calls LLVM intrinsic. | 
|  | // HOST: call contract float @llvm.log.f32(float | 
|  | extern "C" float logf(float __x) { return logf(__x); } |