llvm/test/CodeGen/R600/llvm.SI.load.dword.ll
Michel Danzer 7018cd5af7 R600/SI: Add intrinsic for BUFFER_LOAD_DWORD* instructions
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200196 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-27 07:20:51 +00:00

41 lines
1.9 KiB
LLVM

;RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck %s
; Example of a simple geometry shader loading vertex attributes from the
; ESGS ring buffer
; CHECK-LABEL: @main
; CHECK: BUFFER_LOAD_DWORD
; CHECK: BUFFER_LOAD_DWORD
; CHECK: BUFFER_LOAD_DWORD
; CHECK: BUFFER_LOAD_DWORD
define void @main([17 x <16 x i8>] addrspace(2)* byval, [32 x <16 x i8>] addrspace(2)* byval, [16 x <32 x i8>] addrspace(2)* byval, [2 x <16 x i8>] addrspace(2)* byval, [17 x <16 x i8>] addrspace(2)* inreg, [17 x <16 x i8>] addrspace(2)* inreg, i32, i32, i32, i32) #0 {
main_body:
%10 = getelementptr [2 x <16 x i8>] addrspace(2)* %3, i64 0, i32 1
%11 = load <16 x i8> addrspace(2)* %10, !tbaa !0
%12 = shl i32 %6, 2
%13 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 0, i32 0, i32 0, i32 0, i32 0, i32 1, i32 1, i32 0)
%14 = bitcast i32 %13 to float
%15 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 %12, i32 0, i32 0, i32 1, i32 0, i32 1, i32 1, i32 0)
%16 = bitcast i32 %15 to float
%17 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 %12, i32 0, i32 0, i32 0, i32 1, i32 1, i32 1, i32 0)
%18 = bitcast i32 %17 to float
%19 = call i32 @llvm.SI.buffer.load.dword.i32.v2i32(<16 x i8> %11, <2 x i32> <i32 0, i32 0>, i32 0, i32 0, i32 1, i32 1, i32 1, i32 1, i32 0)
%20 = bitcast i32 %19 to float
call void @llvm.SI.export(i32 15, i32 0, i32 1, i32 12, i32 0, float %14, float %16, float %18, float %20)
ret void
}
; Function Attrs: nounwind readonly
declare i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8>, i32, i32, i32, i32, i32, i32, i32, i32) #1
; Function Attrs: nounwind readonly
declare i32 @llvm.SI.buffer.load.dword.i32.v2i32(<16 x i8>, <2 x i32>, i32, i32, i32, i32, i32, i32, i32) #1
declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)
attributes #0 = { "ShaderType"="1" }
attributes #1 = { nounwind readonly }
!0 = metadata !{metadata !"const", null, i32 1}