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55 lines
3.2 KiB
LLVM
55 lines
3.2 KiB
LLVM
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; RUN: llc -march=amdgcn -mcpu=verde -show-mc-encoding -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -march=amdgcn -mcpu=tonga -show-mc-encoding -verify-machineinstrs < %s | FileCheck %s
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; Example of a simple geometry shader loading vertex attributes from the
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; ESGS ring buffer
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; FIXME: Out of bounds immediate offset crashes
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; CHECK-LABEL: {{^}}main:
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; CHECK: buffer_load_dword {{v[0-9]+}}, off, {{s\[[0-9]+:[0-9]+\]}}, 0 glc slc
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; CHECK: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offen glc slc
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; CHECK: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 idxen glc slc
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; CHECK: buffer_load_dword {{v[0-9]+}}, {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 idxen offen glc slc
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; CHECK: s_movk_i32 [[K:s[0-9]+]], 0x4d2 ; encoding
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; CHECK: buffer_load_dword {{v[0-9]+}}, {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, [[K]] idxen offen offset:65535 glc slc
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define amdgpu_vs void @main([17 x <4 x i32>] addrspace(2)* byval %arg, [32 x <4 x i32>] addrspace(2)* byval %arg1, [16 x <32 x i8>] addrspace(2)* byval %arg2, [2 x <4 x i32>] addrspace(2)* byval %arg3, [17 x <4 x i32>] addrspace(2)* inreg %arg4, [17 x <4 x i32>] addrspace(2)* inreg %arg5, i32 %arg6, i32 %arg7, i32 %arg8, i32 %arg9) {
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main_body:
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%tmp = getelementptr [2 x <4 x i32>], [2 x <4 x i32>] addrspace(2)* %arg3, i64 0, i32 1
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%tmp10 = load <4 x i32>, <4 x i32> addrspace(2)* %tmp, !tbaa !0
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%tmp11 = shl i32 %arg6, 2
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%tmp12 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<4 x i32> %tmp10, i32 0, i32 0, i32 0, i32 0, i32 0, i32 1, i32 1, i32 0)
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%tmp13 = bitcast i32 %tmp12 to float
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%tmp14 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<4 x i32> %tmp10, i32 %tmp11, i32 0, i32 0, i32 1, i32 0, i32 1, i32 1, i32 0)
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%tmp15 = bitcast i32 %tmp14 to float
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%tmp16 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<4 x i32> %tmp10, i32 %tmp11, i32 0, i32 0, i32 0, i32 1, i32 1, i32 1, i32 0)
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%tmp17 = bitcast i32 %tmp16 to float
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%tmp18 = call i32 @llvm.SI.buffer.load.dword.i32.v2i32(<4 x i32> %tmp10, <2 x i32> zeroinitializer, i32 0, i32 0, i32 1, i32 1, i32 1, i32 1, i32 0)
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%tmp19 = bitcast i32 %tmp18 to float
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%tmp20 = call i32 @llvm.SI.buffer.load.dword.i32.v2i32(<4 x i32> %tmp10, <2 x i32> zeroinitializer, i32 0, i32 123, i32 1, i32 1, i32 1, i32 1, i32 0)
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%tmp21 = bitcast i32 %tmp20 to float
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%tmp22 = call i32 @llvm.SI.buffer.load.dword.i32.v2i32(<4 x i32> %tmp10, <2 x i32> zeroinitializer, i32 1234, i32 65535, i32 1, i32 1, i32 1, i32 1, i32 0)
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%tmp23 = bitcast i32 %tmp22 to float
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call void @llvm.amdgcn.exp.f32(i32 15, i32 12, float %tmp13, float %tmp15, float %tmp17, float %tmp19, i1 false, i1 false)
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call void @llvm.amdgcn.exp.f32(i32 15, i32 12, float %tmp21, float %tmp23, float %tmp23, float %tmp23, i1 true, i1 false)
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ret void
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}
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; Function Attrs: nounwind readonly
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declare i32 @llvm.SI.buffer.load.dword.i32.i32(<4 x i32>, i32, i32, i32, i32, i32, i32, i32, i32) #0
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; Function Attrs: nounwind readonly
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declare i32 @llvm.SI.buffer.load.dword.i32.v2i32(<4 x i32>, <2 x i32>, i32, i32, i32, i32, i32, i32, i32) #0
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declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1) #1
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attributes #0 = { nounwind readonly }
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attributes #1 = { nounwind inaccessiblememonly }
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!0 = !{!"const", !1, i32 1}
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!1 = !{!"tbaa root"}
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