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048a920e0e
llvm-mirror/test/CodeGen/AMDGPU/ctpop.ll
Nikolay Haustov 048a920e0e AMDGPU/SI: Assembler: Unify parsing/printing of operands. 
Summary:
The goal is for each operand type to have its own parse function and
at the same time share common code for tracking state as different
instruction types share operand types (e.g. glc/glc_flat, etc).

Introduce parseAMDGPUOperand which can parse any optional operand.
DPP and Clamp/OMod have custom handling for now. Sam also suggested
to have class hierarchy for operand types instead of table. This
can be done in separate change.

Remove parseVOP3OptionalOps, parseDS*OptionalOps, parseFlatOptionalOps,
parseMubufOptionalOps, parseDPPOptionalOps.
Reduce number of definitions of AsmOperand's and MatchClasses' by using common base class.
Rename AsmMatcher/InstPrinter methods accordingly.
Print immediate type when printing parsed immediate operand.
Use 'off' if offset/index register is unused instead of skipping it to make it more readable (also agreed with SP3).
Update tests.

Reviewers: tstellarAMD, SamWot, artem.tamazov

Subscribers: qcolombet, arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D19584

llvm-svn: 268015
2016-04-29 09:02:30 +00:00

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; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC -check-prefix=VI %s
; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
declare i32 @llvm.ctpop.i32(i32) nounwind readnone
declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>) nounwind readnone
declare <4 x i32> @llvm.ctpop.v4i32(<4 x i32>) nounwind readnone
declare <8 x i32> @llvm.ctpop.v8i32(<8 x i32>) nounwind readnone
declare <16 x i32> @llvm.ctpop.v16i32(<16 x i32>) nounwind readnone
; FUNC-LABEL: {{^}}s_ctpop_i32:
; GCN: s_load_dword [[SVAL:s[0-9]+]],
; GCN: s_bcnt1_i32_b32 [[SRESULT:s[0-9]+]], [[SVAL]]
; GCN: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]]
; GCN: buffer_store_dword [[VRESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @s_ctpop_i32(i32 addrspace(1)* noalias %out, i32 %val) nounwind {
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
store i32 %ctpop, i32 addrspace(1)* %out, align 4
ret void
}
; XXX - Why 0 in register?
; FUNC-LABEL: {{^}}v_ctpop_i32:
; GCN: buffer_load_dword [[VAL:v[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], 0
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
store i32 %ctpop, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_add_chain_i32:
; GCN: buffer_load_dword [[VAL1:v[0-9]+]],
; GCN: buffer_load_dword [[VAL0:v[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[MIDRESULT:v[0-9]+]], [[VAL1]], 0
; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAL0]], [[MIDRESULT]]
; VI: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL0]], [[MIDRESULT]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
; EG: BCNT_INT
define void @v_ctpop_add_chain_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in0, i32 addrspace(1)* noalias %in1) nounwind {
%val0 = load i32, i32 addrspace(1)* %in0, align 4
%val1 = load i32, i32 addrspace(1)* %in1, align 4
%ctpop0 = call i32 @llvm.ctpop.i32(i32 %val0) nounwind readnone
%ctpop1 = call i32 @llvm.ctpop.i32(i32 %val1) nounwind readnone
%add = add i32 %ctpop0, %ctpop1
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_add_sgpr_i32:
; GCN: buffer_load_dword [[VAL0:v[0-9]+]],
; GCN: s_waitcnt
; GCN-NEXT: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL0]], s{{[0-9]+}}
; GCN-NEXT: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
define void @v_ctpop_add_sgpr_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in0, i32 addrspace(1)* noalias %in1, i32 %sval) nounwind {
%val0 = load i32, i32 addrspace(1)* %in0, align 4
%ctpop0 = call i32 @llvm.ctpop.i32(i32 %val0) nounwind readnone
%add = add i32 %ctpop0, %sval
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_v2i32:
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: s_endpgm
; EG: BCNT_INT
; EG: BCNT_INT
define void @v_ctpop_v2i32(<2 x i32> addrspace(1)* noalias %out, <2 x i32> addrspace(1)* noalias %in) nounwind {
%val = load <2 x i32>, <2 x i32> addrspace(1)* %in, align 8
%ctpop = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %val) nounwind readnone
store <2 x i32> %ctpop, <2 x i32> addrspace(1)* %out, align 8
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_v4i32:
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: s_endpgm
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
define void @v_ctpop_v4i32(<4 x i32> addrspace(1)* noalias %out, <4 x i32> addrspace(1)* noalias %in) nounwind {
%val = load <4 x i32>, <4 x i32> addrspace(1)* %in, align 16
%ctpop = call <4 x i32> @llvm.ctpop.v4i32(<4 x i32> %val) nounwind readnone
store <4 x i32> %ctpop, <4 x i32> addrspace(1)* %out, align 16
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_v8i32:
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: s_endpgm
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
define void @v_ctpop_v8i32(<8 x i32> addrspace(1)* noalias %out, <8 x i32> addrspace(1)* noalias %in) nounwind {
%val = load <8 x i32>, <8 x i32> addrspace(1)* %in, align 32
%ctpop = call <8 x i32> @llvm.ctpop.v8i32(<8 x i32> %val) nounwind readnone
store <8 x i32> %ctpop, <8 x i32> addrspace(1)* %out, align 32
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_v16i32:
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: v_bcnt_u32_b32_e64
; GCN: s_endpgm
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
; EG: BCNT_INT
define void @v_ctpop_v16i32(<16 x i32> addrspace(1)* noalias %out, <16 x i32> addrspace(1)* noalias %in) nounwind {
%val = load <16 x i32>, <16 x i32> addrspace(1)* %in, align 32
%ctpop = call <16 x i32> @llvm.ctpop.v16i32(<16 x i32> %val) nounwind readnone
store <16 x i32> %ctpop, <16 x i32> addrspace(1)* %out, align 32
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_inline_constant:
; GCN: buffer_load_dword [[VAL:v[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], 4
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32_add_inline_constant(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%add = add i32 %ctpop, 4
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_inline_constant_inv:
; GCN: buffer_load_dword [[VAL:v[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], 4
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32_add_inline_constant_inv(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%add = add i32 4, %ctpop
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_literal:
; GCN: buffer_load_dword [[VAL:v[0-9]+]],
; GCN: v_mov_b32_e32 [[LIT:v[0-9]+]], 0x1869f
; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAL]], [[LIT]]
; VI: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], [[LIT]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
define void @v_ctpop_i32_add_literal(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%add = add i32 %ctpop, 99999
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_var:
; GCN-DAG: buffer_load_dword [[VAL:v[0-9]+]],
; GCN-DAG: s_load_dword [[VAR:s[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], [[VAR]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32_add_var(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in, i32 %const) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%add = add i32 %ctpop, %const
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_var_inv:
; GCN-DAG: buffer_load_dword [[VAL:v[0-9]+]],
; GCN-DAG: s_load_dword [[VAR:s[0-9]+]],
; GCN: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], [[VAR]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32_add_var_inv(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in, i32 %const) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%add = add i32 %const, %ctpop
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_ctpop_i32_add_vvar_inv:
; GCN-DAG: buffer_load_dword [[VAL:v[0-9]+]], off, s[{{[0-9]+:[0-9]+}}], {{0$}}
; GCN-DAG: buffer_load_dword [[VAR:v[0-9]+]], off, s[{{[0-9]+:[0-9]+}}], 0 offset:16
; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAL]], [[VAR]]
; VI: v_bcnt_u32_b32_e64 [[RESULT:v[0-9]+]], [[VAL]], [[VAR]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @v_ctpop_i32_add_vvar_inv(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in, i32 addrspace(1)* noalias %constptr) nounwind {
%val = load i32, i32 addrspace(1)* %in, align 4
%ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
%gep = getelementptr i32, i32 addrspace(1)* %constptr, i32 4
%const = load i32, i32 addrspace(1)* %gep, align 4
%add = add i32 %const, %ctpop
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FIXME: We currently disallow SALU instructions in all branches,
; but there are some cases when the should be allowed.
; FUNC-LABEL: {{^}}ctpop_i32_in_br:
; SI: s_load_dword [[VAL:s[0-9]+]], s[{{[0-9]+:[0-9]+}}], 0xd
; VI: s_load_dword [[VAL:s[0-9]+]], s[{{[0-9]+:[0-9]+}}], 0x34
; GCN: s_bcnt1_i32_b32 [[SRESULT:s[0-9]+]], [[VAL]]
; GCN: v_mov_b32_e32 [[RESULT]], [[SRESULT]]
; GCN: buffer_store_dword [[RESULT]],
; GCN: s_endpgm
; EG: BCNT_INT
define void @ctpop_i32_in_br(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %ctpop_arg, i32 %cond) {
entry:
%tmp0 = icmp eq i32 %cond, 0
br i1 %tmp0, label %if, label %else
if:
%tmp2 = call i32 @llvm.ctpop.i32(i32 %ctpop_arg)
br label %endif
else:
%tmp3 = getelementptr i32, i32 addrspace(1)* %in, i32 1
%tmp4 = load i32, i32 addrspace(1)* %tmp3
br label %endif
endif:
%tmp5 = phi i32 [%tmp2, %if], [%tmp4, %else]
store i32 %tmp5, i32 addrspace(1)* %out
ret void
}
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