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llvm/test/CodeGen/R600/llvm.AMDGPU.bfe.i32.ll
Matt Arsenault 0134a9bed3 R600: Fix nonsensical implementation of computeKnownBits for BFE 
This was resulting in invalid simplifications of sdiv

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219953 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-16 20:07:40 +00:00

442 lines
15 KiB
LLVM
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; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=redwood -show-mc-encoding -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
declare i32 @llvm.AMDGPU.bfe.i32(i32, i32, i32) nounwind readnone
; FUNC-LABEL: {{^}}bfe_i32_arg_arg_arg:
; SI: V_BFE_I32
; EG: BFE_INT
; EG: encoding: [{{[x0-9a-f]+,[x0-9a-f]+,[x0-9a-f]+,[x0-9a-f]+,[x0-9a-f]+}},0xac
define void @bfe_i32_arg_arg_arg(i32 addrspace(1)* %out, i32 %src0, i32 %src1, i32 %src2) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %src0, i32 %src1, i32 %src1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_arg_arg_imm:
; SI: V_BFE_I32
; EG: BFE_INT
define void @bfe_i32_arg_arg_imm(i32 addrspace(1)* %out, i32 %src0, i32 %src1) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %src0, i32 %src1, i32 123) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_arg_imm_arg:
; SI: V_BFE_I32
; EG: BFE_INT
define void @bfe_i32_arg_imm_arg(i32 addrspace(1)* %out, i32 %src0, i32 %src2) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %src0, i32 123, i32 %src2) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_imm_arg_arg:
; SI: V_BFE_I32
; EG: BFE_INT
define void @bfe_i32_imm_arg_arg(i32 addrspace(1)* %out, i32 %src1, i32 %src2) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 123, i32 %src1, i32 %src2) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}v_bfe_print_arg:
; SI: V_BFE_I32 v{{[0-9]+}}, v{{[0-9]+}}, 2, 8
define void @v_bfe_print_arg(i32 addrspace(1)* %out, i32 addrspace(1)* %src0) nounwind {
%load = load i32 addrspace(1)* %src0, align 4
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %load, i32 2, i32 8) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_arg_0_width_reg_offset:
; SI-NOT: BFE
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_arg_0_width_reg_offset(i32 addrspace(1)* %out, i32 %src0, i32 %src1) nounwind {
%bfe_u32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %src0, i32 %src1, i32 0) nounwind readnone
store i32 %bfe_u32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_arg_0_width_imm_offset:
; SI-NOT: BFE
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_arg_0_width_imm_offset(i32 addrspace(1)* %out, i32 %src0, i32 %src1) nounwind {
%bfe_u32 = call i32 @llvm.AMDGPU.bfe.i32(i32 %src0, i32 8, i32 0) nounwind readnone
store i32 %bfe_u32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_6:
; SI: V_LSHLREV_B32_e32 v{{[0-9]+}}, 31, v{{[0-9]+}}
; SI: V_ASHRREV_I32_e32 v{{[0-9]+}}, 1, v{{[0-9]+}}
; SI: S_ENDPGM
define void @bfe_i32_test_6(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%shl = shl i32 %x, 31
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %shl, i32 1, i32 31)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_7:
; SI-NOT: SHL
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
define void @bfe_i32_test_7(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%shl = shl i32 %x, 31
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %shl, i32 0, i32 31)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FIXME: The shifts should be 1 BFE
; FUNC-LABEL: {{^}}bfe_i32_test_8:
; SI: BUFFER_LOAD_DWORD
; SI: V_BFE_I32 v{{[0-9]+}}, v{{[0-9]+}}, 0, 1
; SI: S_ENDPGM
define void @bfe_i32_test_8(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%shl = shl i32 %x, 31
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %shl, i32 31, i32 1)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_9:
; SI-NOT: BFE
; SI: V_ASHRREV_I32_e32 v{{[0-9]+}}, 31, v{{[0-9]+}}
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_9(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %x, i32 31, i32 1)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_10:
; SI-NOT: BFE
; SI: V_ASHRREV_I32_e32 v{{[0-9]+}}, 1, v{{[0-9]+}}
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_10(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %x, i32 1, i32 31)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_11:
; SI-NOT: BFE
; SI: V_ASHRREV_I32_e32 v{{[0-9]+}}, 8, v{{[0-9]+}}
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_11(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %x, i32 8, i32 24)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_12:
; SI-NOT: BFE
; SI: V_ASHRREV_I32_e32 v{{[0-9]+}}, 24, v{{[0-9]+}}
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_12(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %x, i32 24, i32 8)
store i32 %bfe, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_13:
; SI: V_ASHRREV_I32_e32 {{v[0-9]+}}, 31, {{v[0-9]+}}
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_13(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%shl = ashr i32 %x, 31
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %shl, i32 31, i32 1)
store i32 %bfe, i32 addrspace(1)* %out, align 4 ret void
}
; FUNC-LABEL: {{^}}bfe_i32_test_14:
; SI-NOT: LSHR
; SI-NOT: BFE
; SI: S_ENDPGM
define void @bfe_i32_test_14(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%shl = lshr i32 %x, 31
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %shl, i32 31, i32 1)
store i32 %bfe, i32 addrspace(1)* %out, align 4 ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_0:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_0(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 0, i32 0, i32 0) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_1:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_1(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 12334, i32 0, i32 0) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_2:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_2(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 0, i32 0, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_3:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], -1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_3(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 1, i32 0, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_4:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], -1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_4(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 4294967295, i32 0, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_5:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], -1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_5(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 128, i32 7, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_6:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0xffffff80
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_6(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 128, i32 0, i32 8) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_7:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0x7f
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_7(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 127, i32 0, i32 8) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_8:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_8(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 127, i32 6, i32 8) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_9:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_9(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 65536, i32 16, i32 8) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_10:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_10(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 65535, i32 16, i32 16) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_11:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], -6
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_11(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 160, i32 4, i32 4) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_12:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_12(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 160, i32 31, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_13:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_13(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 131070, i32 16, i32 16) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_14:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 40
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_14(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 160, i32 2, i32 30) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_15:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 10
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_15(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 160, i32 4, i32 28) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_16:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], -1
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_16(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 4294967295, i32 1, i32 7) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_17:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0x7f
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_17(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 255, i32 1, i32 31) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: {{^}}bfe_i32_constant_fold_test_18:
; SI-NOT: BFE
; SI: V_MOV_B32_e32 [[VREG:v[0-9]+]], 0
; SI: BUFFER_STORE_DWORD [[VREG]],
; SI: S_ENDPGM
; EG-NOT: BFE
define void @bfe_i32_constant_fold_test_18(i32 addrspace(1)* %out) nounwind {
%bfe_i32 = call i32 @llvm.AMDGPU.bfe.i32(i32 255, i32 31, i32 1) nounwind readnone
store i32 %bfe_i32, i32 addrspace(1)* %out, align 4
ret void
}
; XXX - This should really be a single BFE, but the sext_inreg of the
; extended type i24 is never custom lowered.
; FUNC-LABEL: {{^}}bfe_sext_in_reg_i24:
; SI: BUFFER_LOAD_DWORD [[LOAD:v[0-9]+]],
; SI: V_LSHLREV_B32_e32 {{v[0-9]+}}, 8, {{v[0-9]+}}
; SI: V_ASHRREV_I32_e32 {{v[0-9]+}}, 8, {{v[0-9]+}}
; XSI: V_BFE_I32 [[BFE:v[0-9]+]], [[LOAD]], 0, 8
; XSI-NOT: SHL
; XSI-NOT: SHR
; XSI: BUFFER_STORE_DWORD [[BFE]],
define void @bfe_sext_in_reg_i24(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%x = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %x, i32 0, i32 24)
%shl = shl i32 %bfe, 8
%ashr = ashr i32 %shl, 8
store i32 %ashr, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @simplify_demanded_bfe_sdiv
; SI: BUFFER_LOAD_DWORD [[LOAD:v[0-9]+]]
; SI: V_BFE_I32 [[BFE:v[0-9]+]], [[LOAD]], 1, 16
; SI: V_LSHRREV_B32_e32 [[TMP0:v[0-9]+]], 31, [[BFE]]
; SI: V_ADD_I32_e32 [[TMP1:v[0-9]+]], [[TMP0]], [[BFE]]
; SI: V_ASHRREV_I32_e32 [[TMP2:v[0-9]+]], 1, [[TMP1]]
; SI: BUFFER_STORE_DWORD [[TMP2]]
define void @simplify_demanded_bfe_sdiv(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
%src = load i32 addrspace(1)* %in, align 4
%bfe = call i32 @llvm.AMDGPU.bfe.i32(i32 %src, i32 1, i32 16) nounwind readnone
%div = sdiv i32 %bfe, 2
store i32 %div, i32 addrspace(1)* %out, align 4
ret void
}
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