39 lines
1.5 KiB
LLVM
39 lines
1.5 KiB
LLVM
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; RUN: llc -march=amdgcn -mcpu=gfx803 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX8 %s
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; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX9 %s
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; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX10 %s
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; FIXME: GFX9 should be producing v_mad_u16 instead of v_mad_legacy_u16.
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; GCN-LABEL: {{^}}mad_u16
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; GCN: {{flat|global}}_load_ushort v[[A:[0-9]+]]
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; GCN: {{flat|global}}_load_ushort v[[B:[0-9]+]]
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; GCN: {{flat|global}}_load_ushort v[[C:[0-9]+]]
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; GFX8: v_mad_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
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; GFX9: v_mad_legacy_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
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; GFX10: v_mad_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
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; GCN: {{flat|global}}_store_short v{{.+}}, v[[R]]
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; GCN: s_endpgm
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define amdgpu_kernel void @mad_u16(
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i16 addrspace(1)* %r,
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i16 addrspace(1)* %a,
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i16 addrspace(1)* %b,
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i16 addrspace(1)* %c) {
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entry:
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%a.gep = getelementptr inbounds i16, i16 addrspace(1)* %a, i32 %tid
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%b.gep = getelementptr inbounds i16, i16 addrspace(1)* %b, i32 %tid
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%c.gep = getelementptr inbounds i16, i16 addrspace(1)* %c, i32 %tid
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%a.val = load volatile i16, i16 addrspace(1)* %a.gep
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%b.val = load volatile i16, i16 addrspace(1)* %b.gep
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%c.val = load volatile i16, i16 addrspace(1)* %c.gep
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%m.val = mul i16 %a.val, %b.val
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%r.val = add i16 %m.val, %c.val
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store i16 %r.val, i16 addrspace(1)* %r
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x()
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