; 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. 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" ; the initial value of xxx is 10 @xxx = internal addrspace(1) global i32 10, align 4 ; the initial value of yyy is 100 @yyy = internal addrspace(1) global i32 100, align 4 @llvm.used = appending global [3 x i8*] [i8* bitcast (i8* addrspacecast (i32 addrspace(1)* @xxx to i8*) to i8*), i8* bitcast (i8* addrspacecast (i32 addrspace(1)* @yyy to i8*) to i8*), i8* bitcast (void (i32*)* @test_kernel to i8*)], section "llvm.metadata" ; %ptr can be in the managed space, and its address can be directly used in the host and device. ; See the uvmlite.c, which passes the device pointer of xxx as the kernel parameter. ; This kernel also directly accesses @yyy, which is also managed. define void @test_kernel(i32* nocapture %ptr) nounwind alwaysinline { ; *%ptr = *%ptr + 20 %gen2other = addrspacecast i32* %ptr to i32 addrspace(1)* %tmp1 = load i32, i32 addrspace(1)* %gen2other, align 4 %add = add nsw i32 %tmp1, 20 store i32 %add, i32 addrspace(1)* %gen2other, align 4 ; @yyy = @yyy + 30 %tmp2 = load i32, i32 addrspace(1)* @yyy, align 4 %add3 = add nsw i32 %tmp2, 30 store i32 %add3, i32 addrspace(1)* @yyy, align 4 ret void } !nvvm.annotations = !{!7, !8, !9} !nvvmir.version = !{!6} !6 = !{i32 2, i32 0} !7 = !{i32 addrspace(1)* @xxx, !"managed", i32 1} !8 = !{i32 addrspace(1)* @yyy, !"managed", i32 1} !9 = !{void (i32*)* @test_kernel, !"kernel", i32 1}