mirror of
https://github.com/NVIDIA/cuda-samples.git
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62 lines
3.1 KiB
LLVM
62 lines
3.1 KiB
LLVM
; Copyright (c) 2014-2023, NVIDIA CORPORATION. All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
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; are met:
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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; * Neither the name of NVIDIA CORPORATION nor the names of its
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; contributors may be used to endorse or promote products derived
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; from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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; OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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"
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target triple = "nvptx64-nvidia-cuda"
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; the initial value of xxx is 10
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@xxx = internal addrspace(1) global i32 10, align 4
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; the initial value of yyy is 100
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@yyy = internal addrspace(1) global i32 100, align 4
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@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"
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; %ptr can be in the managed space, and its address can be directly used in the host and device.
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; See the uvmlite.c, which passes the device pointer of xxx as the kernel parameter.
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; This kernel also directly accesses @yyy, which is also managed.
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define void @test_kernel(i32* nocapture %ptr) nounwind alwaysinline {
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; *%ptr = *%ptr + 20
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%gen2other = addrspacecast i32* %ptr to i32 addrspace(1)*
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%tmp1 = load i32, i32 addrspace(1)* %gen2other, align 4
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%add = add nsw i32 %tmp1, 20
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store i32 %add, i32 addrspace(1)* %gen2other, align 4
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; @yyy = @yyy + 30
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%tmp2 = load i32, i32 addrspace(1)* @yyy, align 4
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%add3 = add nsw i32 %tmp2, 30
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store i32 %add3, i32 addrspace(1)* @yyy, align 4
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ret void
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}
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!nvvm.annotations = !{!7, !8, !9}
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!nvvmir.version = !{!6}
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!6 = !{i32 2, i32 0}
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!7 = !{i32 addrspace(1)* @xxx, !"managed", i32 1}
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!8 = !{i32 addrspace(1)* @yyy, !"managed", i32 1}
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!9 = !{void (i32*)* @test_kernel, !"kernel", i32 1}
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