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 // CHECK: [[SIMPLE_PRINTF_TY:%[a-zA-Z0-9_]+]] = type { i32, i64, double } 13 __device__ int CheckSimple() { 14 // CHECK: [[BUF:%[a-zA-Z0-9_]+]] = alloca [[SIMPLE_PRINTF_TY]] 15 // CHECK: [[FMT:%[0-9]+]] = load{{.*}}%fmt 16 const char* fmt = "%d %lld %f"; 17 // CHECK: [[PTR0:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 0 18 // CHECK: store i32 1, i32* [[PTR0]], align 4 19 // CHECK: [[PTR1:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 1 20 // CHECK: store i64 2, i64* [[PTR1]], align 8 21 // CHECK: [[PTR2:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 2 22 // CHECK: store double 3.0{{[^,]*}}, double* [[PTR2]], align 8 23 // CHECK: [[BUF_CAST:%[0-9]+]] = bitcast [[SIMPLE_PRINTF_TY]]* [[BUF]] to i8* 24 // CHECK: [[RET:%[0-9]+]] = call i32 @vprintf(i8* [[FMT]], i8* [[BUF_CAST]]) 25 // CHECK: ret i32 [[RET]] 26 return printf(fmt, 1, 2ll, 3.0); 27 } 28 29 __device__ void CheckNoArgs() { 30 // CHECK: call i32 @vprintf({{.*}}, i8* null){{$}} 31 printf("hello, world!"); 32 } 33 34 // Check that printf's alloca happens in the entry block, not inside the if 35 // statement. 36 __device__ bool foo(); 37 __device__ void CheckAllocaIsInEntryBlock() { 38 // CHECK: alloca %printf_args 39 // CHECK: call {{.*}} @_Z3foov() 40 if (foo()) { 41 printf("%d", 42); 42 } 43 } 44
