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llvm-mirror/test/CodeGen/NVPTX/tex-read.ll

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[NVPTX] Add preliminary intrinsics and codegen support for textures/surfaces 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). llvm-svn: 205907
2014-04-09 17:39:15 +02:00
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
target triple = "nvptx-unknown-nvcl"
[NVPTX] Add more surface/texture intrinsics, including CUDA unified texture fetch This also uses TSFlags to mark machine instructions that are surface/texture accesses, as well as the vector width for surface operations. This is used to simplify some of the switch statements that need to detect surface/texture instructions llvm-svn: 213256
2014-07-17 13:59:04 +02:00
declare { float, float, float, float } @llvm.nvvm.tex.1d.v4f32.s32(i64, i64, i32)
[NVPTX] Add preliminary intrinsics and codegen support for textures/surfaces 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). llvm-svn: 205907
2014-04-09 17:39:15 +02:00
; CHECK: .entry foo
define void @foo(i64 %img, i64 %sampler, float* %red, i32 %idx) {
; 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]+}}}]
[NVPTX] Add more surface/texture intrinsics, including CUDA unified texture fetch This also uses TSFlags to mark machine instructions that are surface/texture accesses, as well as the vector width for surface operations. This is used to simplify some of the switch statements that need to detect surface/texture instructions llvm-svn: 213256
2014-07-17 13:59:04 +02:00
%val = tail call { float, float, float, float } @llvm.nvvm.tex.1d.v4f32.s32(i64 %img, i64 %sampler, i32 %idx)
[NVPTX] Add preliminary intrinsics and codegen support for textures/surfaces 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). llvm-svn: 205907
2014-04-09 17:39:15 +02:00
%ret = extractvalue { float, float, float, float } %val, 0
; CHECK: st.f32 [%r{{[0-9]+}}], %f[[RED]]
store float %ret, float* %red
ret void
}
!nvvm.annotations = !{!1, !2, !3}
!1 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"kernel", i32 1}
!2 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"rdoimage", i32 0}
!3 = metadata !{void (i64, i64, float*, i32)* @foo, metadata !"sampler", i32 1}
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