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https://github.com/c64scene-ar/llvm-6502.git
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77f268945e
This commit adds intrinsics and codegen support for the surface read/write and texture read instructions that take an explicit sampler parameter. Codegen operates on image handles at the PTX level, but falls back to direct replacement of handles with kernel arguments if image handles are not enabled. Note that image handles are explicitly disabled for all target architectures in this change (to be enabled later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205907 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
948 B
LLVM
21 lines
948 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
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target triple = "nvptx-unknown-nvcl"
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declare { float, float, float, float } @llvm.nvvm.tex.1d.v4f32.i32(i64, i64, i32)
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; CHECK: .entry foo
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define void @foo(i64 %img, i64 %sampler, float* %red, i32 %idx) {
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; CHECK: tex.1d.v4.f32.s32 {%f[[RED:[0-9]+]], %f[[GREEN:[0-9]+]], %f[[BLUE:[0-9]+]], %f[[ALPHA:[0-9]+]]}, [foo_param_0, foo_param_1, {%r{{[0-9]+}}}]
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%val = tail call { float, float, float, float } @llvm.nvvm.tex.1d.v4f32.i32(i64 %img, i64 %sampler, i32 %idx)
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%ret = extractvalue { float, float, float, float } %val, 0
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; CHECK: st.f32 [%r{{[0-9]+}}], %f[[RED]]
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store float %ret, float* %red
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ret void
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}
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!nvvm.annotations = !{!1, !2, !3}
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!1 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"kernel", i32 1}
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!2 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"rdoimage", i32 0}
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!3 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"sampler", i32 1}
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