; Copyright (c) 2014-2023, NVIDIA CORPORATION. All rights reserved. ; ; Redistribution and use in source and binary forms, with or without ; modification, are permitted provided that the following conditions ; are met: ; * Redistributions of source code must retain the above copyright ; notice, this list of conditions and the following disclaimer. ; * Redistributions in binary form must reproduce the above copyright ; notice, this list of conditions and the following disclaimer in the ; documentation and/or other materials provided with the distribution. ; * Neither the name of NVIDIA CORPORATION nor the names of its ; contributors may be used to endorse or promote products derived ; from this software without specific prior written permission. ; ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY ; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR ; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, ; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, ; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR ; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY ; OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ; This NVVM IR programs shows how to call the vprintf function. ; What it does is similar to the following CUDA C code. ; ; __global__ void foo(char c, short s, int i, long l, ; float f, double d, char* p) ; { ; printf("Hello world from %c %hi %d %ld %f %f %s\n", c, s, i, l, f, d, p); ; } ; ; There is no direct printf() support. In order to use ; vprintf(), a local buffer is allocated. Integer types that ; are shorter than int need to be extended to int and float ; needs to be extended to double before being pushed into ; the local buffer. target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-i128:128:128-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64" target triple = "nvptx64-nvidia-cuda" @"$str" = private addrspace(4) constant [41 x i8] c"Hello world from %c %hi %d %ld %f %f %s\0A\00" define void @foo(i8 signext %c, i16 signext %s, i32 %i, i64 %l, float %f, double %d, i8* %p) { entry: %tmp = alloca [12 x i32], align 8 %tmp2 = getelementptr inbounds [12 x i32], [12 x i32]* %tmp, i64 0, i64 0 %gen2local = addrspacecast i32* %tmp2 to i32 addrspace(5)* %conv = sext i8 %c to i32 store i32 %conv, i32 addrspace(5)* %gen2local, align 8 %conv2 = sext i16 %s to i32 %getElem11 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 1 store i32 %conv2, i32 addrspace(5)* %getElem11, align 4 %getElem12 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 2 store i32 %i, i32 addrspace(5)* %getElem12, align 8 %getElem13 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 4 %bitCast = bitcast i32 addrspace(5)* %getElem13 to i64 addrspace(5)* store i64 %l, i64 addrspace(5)* %bitCast, align 8 %getElem14 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 6 %conv6 = fpext float %f to double %bitCast15 = bitcast i32 addrspace(5)* %getElem14 to double addrspace(5)* store double %conv6, double addrspace(5)* %bitCast15, align 8 %getElem16 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 8 %bitCast17 = bitcast i32 addrspace(5)* %getElem16 to double addrspace(5)* store double %d, double addrspace(5)* %bitCast17, align 8 %getElem18 = getelementptr i32, i32 addrspace(5)* %gen2local, i64 10 %bitCast19 = bitcast i32 addrspace(5)* %getElem18 to i8* addrspace(5)* store i8* %p, i8* addrspace(5)* %bitCast19, align 8 %0 = addrspacecast i8 addrspace(4)* getelementptr inbounds ([41 x i8], [41 x i8] addrspace(4)* @"$str", i64 0, i64 0) to i8* %1 = bitcast [12 x i32]* %tmp to i8* %call = call i32 @vprintf(i8* %0, i8* %1) ret void } declare i32 @vprintf(i8* nocapture, i8*) nounwind !nvvm.annotations = !{!0} !0 = !{void (i8, i16, i32, i64, float, double, i8*)* @foo, !"kernel", i32 1} !nvvmir.version = !{!1} !1 = !{i32 2, i32 0}