| // REQUIRES: x86-registered-target |
| // REQUIRES: nvptx-registered-target |
| |
| // RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fcuda-is-device -emit-llvm \ |
| // RUN: -o - %s | FileCheck %s |
| |
| #include "Inputs/cuda.h" |
| |
| extern "C" __device__ int vprintf(const char*, const char*); |
| |
| // Check a simple call to printf end-to-end. |
| // CHECK: [[SIMPLE_PRINTF_TY:%[a-zA-Z0-9_]+]] = type { i32, i64, double } |
| __device__ int CheckSimple() { |
| // CHECK: [[BUF:%[a-zA-Z0-9_]+]] = alloca [[SIMPLE_PRINTF_TY]] |
| // CHECK: [[FMT:%[0-9]+]] = load{{.*}}%fmt |
| const char* fmt = "%d %lld %f"; |
| // CHECK: [[PTR0:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 0 |
| // CHECK: store i32 1, i32* [[PTR0]], align 4 |
| // CHECK: [[PTR1:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 1 |
| // CHECK: store i64 2, i64* [[PTR1]], align 8 |
| // CHECK: [[PTR2:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 2 |
| // CHECK: store double 3.0{{[^,]*}}, double* [[PTR2]], align 8 |
| // CHECK: [[BUF_CAST:%[0-9]+]] = bitcast [[SIMPLE_PRINTF_TY]]* [[BUF]] to i8* |
| // CHECK: [[RET:%[0-9]+]] = call i32 @vprintf(i8* [[FMT]], i8* [[BUF_CAST]]) |
| // CHECK: ret i32 [[RET]] |
| return printf(fmt, 1, 2ll, 3.0); |
| } |
| |
| __device__ void CheckNoArgs() { |
| // CHECK: call i32 @vprintf({{.*}}, i8* null){{$}} |
| printf("hello, world!"); |
| } |
| |
| // Check that printf's alloca happens in the entry block, not inside the if |
| // statement. |
| __device__ bool foo(); |
| __device__ void CheckAllocaIsInEntryBlock() { |
| // CHECK: alloca %printf_args |
| // CHECK: call {{.*}} @_Z3foov() |
| if (foo()) { |
| printf("%d", 42); |
| } |
| } |
