1 // REQUIRES: x86-registered-target
2 // REQUIRES: nvptx-registered-target
3 
4 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | \
5 // RUN:  FileCheck --check-prefixes=HOST,BOTH %s
6 // RUN: %clang_cc1 -fcuda-is-device -triple nvptx64-nvidia-cuda \
7 // RUN:   -emit-llvm -o - %s | FileCheck %s --check-prefixes=DEVICE,BOTH
8 
9 // BOTH-LABEL: define float @logf(float
10 
11 // logf() should be calling itself recursively as we don't have any standard
12 // library on device side.
13 // DEVICE: call float @logf(float
14 extern "C" __attribute__((device)) float logf(float __x) { return logf(__x); }
15 
16 // NOTE: this case is to illustrate the expected differences in behavior between
17 // the host and device. In general we do not mess with host-side standard
18 // library.
19 //
20 // Host is assumed to have standard library, so logf() calls LLVM intrinsic.
21 // HOST: call float @llvm.log.f32(float
22 extern "C" float logf(float __x) { return logf(__x); }
23