| Justin Lebar | 3039a59 | 2016-01-23 21:28:14 +0000 | [diff] [blame^] | 1 | // REQUIRES: x86-registered-target |
| 2 | // REQUIRES: nvptx-registered-target |
| 3 | |
| 4 | // RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fcuda-is-device -emit-llvm \ |
| 5 | // RUN: -o - %s | FileCheck %s |
| 6 | |
| 7 | #include "Inputs/cuda.h" |
| 8 | |
| 9 | extern "C" __device__ int vprintf(const char*, const char*); |
| 10 | |
| 11 | // Check a simple call to printf end-to-end. |
| 12 | __device__ int CheckSimple() { |
| 13 | // CHECK: [[FMT:%[0-9]+]] = load{{.*}}%fmt |
| 14 | const char* fmt = "%d"; |
| 15 | // CHECK: [[BUF:%[a-zA-Z0-9_]+]] = alloca i8, i32 4, align 4 |
| 16 | // CHECK: [[PTR:%[0-9]+]] = getelementptr i8, i8* [[BUF]], i32 0 |
| 17 | // CHECK: [[CAST:%[0-9]+]] = bitcast i8* [[PTR]] to i32* |
| 18 | // CHECK: store i32 42, i32* [[CAST]], align 4 |
| 19 | // CHECK: [[RET:%[0-9]+]] = call i32 @vprintf(i8* [[FMT]], i8* [[BUF]]) |
| 20 | // CHECK: ret i32 [[RET]] |
| 21 | return printf(fmt, 42); |
| 22 | } |
| 23 | |
| 24 | // Check that the args' types are promoted correctly when we call printf. |
| 25 | __device__ void CheckTypes() { |
| 26 | // CHECK: alloca {{.*}} align 8 |
| 27 | // CHECK: getelementptr {{.*}} i32 0 |
| 28 | // CHECK: bitcast {{.*}} to i32* |
| 29 | // CHECK: getelementptr {{.*}} i32 4 |
| 30 | // CHECK: bitcast {{.*}} to i32* |
| 31 | // CHECK: getelementptr {{.*}} i32 8 |
| 32 | // CHECK: bitcast {{.*}} to double* |
| 33 | // CHECK: getelementptr {{.*}} i32 16 |
| 34 | // CHECK: bitcast {{.*}} to double* |
| 35 | printf("%d %d %f %f", (char)1, (short)2, 3.0f, 4.0); |
| 36 | } |
| 37 | |
| 38 | // Check that the args are aligned properly in the buffer. |
| 39 | __device__ void CheckAlign() { |
| 40 | // CHECK: alloca i8, i32 40, align 8 |
| 41 | // CHECK: getelementptr {{.*}} i32 0 |
| 42 | // CHECK: getelementptr {{.*}} i32 8 |
| 43 | // CHECK: getelementptr {{.*}} i32 16 |
| 44 | // CHECK: getelementptr {{.*}} i32 20 |
| 45 | // CHECK: getelementptr {{.*}} i32 24 |
| 46 | // CHECK: getelementptr {{.*}} i32 32 |
| 47 | printf("%d %f %d %d %d %lld", 1, 2.0, 3, 4, 5, (long long)6); |
| 48 | } |
| 49 | |
| 50 | __device__ void CheckNoArgs() { |
| 51 | // CHECK: call i32 @vprintf({{.*}}, i8* null){{$}} |
| 52 | printf("hello, world!"); |
| 53 | } |