llvm-6502/test/CodeGen/PowerPC/vsx.ll
Bill Schmidt b76f5ba103 [PowerPC] Enable use of lxvw4x/stxvw4x in VSX code generation
Currently the VSX support enables use of lxvd2x and stxvd2x for 2x64
types, but does not yet use lxvw4x and stxvw4x for 4x32 types.  This
patch adds that support.

As with lxvd2x/stxvd2x, this involves straightforward overriding of
the patterns normally recognized for lvx/stvx, with preference given
to the VSX patterns when VSX is enabled.

In addition, the logic for permitting misaligned memory accesses is
modified so that v4r32 and v4i32 are treated the same as v2f64 and
v2i64 when VSX is enabled.  Finally, the DAG generation for unaligned
loads is changed to just use a normal LOAD (which will become lxvw4x)
on P8 and later hardware, where unaligned loads are preferred over
lvsl/lvx/lvx/vperm.

A number of tests now generate the VSX loads/stores instead of
lvx/stvx, so this patch adds VSX variants to those tests.  I've also
added <4 x float> tests to the vsx.ll test case, and created a
vsx-p8.ll test case to be used for testing code generation for the
P8Vector feature.  For now, that simply tests the unaligned load/store
behavior.

This has been tested along with a temporary patch to enable the VSX
and P8Vector features, with no new regressions encountered with or
without the temporary patch applied.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220047 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-17 15:13:38 +00:00

709 lines
15 KiB
LLVM

; RUN: llc -mcpu=pwr7 -mattr=+vsx < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define double @test1(double %a, double %b) {
entry:
%v = fmul double %a, %b
ret double %v
; CHECK-LABEL: @test1
; CHECK: xsmuldp 1, 1, 2
; CHECK: blr
}
define double @test2(double %a, double %b) {
entry:
%v = fdiv double %a, %b
ret double %v
; CHECK-LABEL: @test2
; CHECK: xsdivdp 1, 1, 2
; CHECK: blr
}
define double @test3(double %a, double %b) {
entry:
%v = fadd double %a, %b
ret double %v
; CHECK-LABEL: @test3
; CHECK: xsadddp 1, 1, 2
; CHECK: blr
}
define <2 x double> @test4(<2 x double> %a, <2 x double> %b) {
entry:
%v = fadd <2 x double> %a, %b
ret <2 x double> %v
; CHECK-LABEL: @test4
; CHECK: xvadddp 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test5(<4 x i32> %a, <4 x i32> %b) {
entry:
%v = xor <4 x i32> %a, %b
ret <4 x i32> %v
; CHECK-LABEL: @test5
; CHECK: xxlxor 34, 34, 35
; CHECK: blr
}
define <8 x i16> @test6(<8 x i16> %a, <8 x i16> %b) {
entry:
%v = xor <8 x i16> %a, %b
ret <8 x i16> %v
; CHECK-LABEL: @test6
; CHECK: xxlxor 34, 34, 35
; CHECK: blr
}
define <16 x i8> @test7(<16 x i8> %a, <16 x i8> %b) {
entry:
%v = xor <16 x i8> %a, %b
ret <16 x i8> %v
; CHECK-LABEL: @test7
; CHECK: xxlxor 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test8(<4 x i32> %a, <4 x i32> %b) {
entry:
%v = or <4 x i32> %a, %b
ret <4 x i32> %v
; CHECK-LABEL: @test8
; CHECK: xxlor 34, 34, 35
; CHECK: blr
}
define <8 x i16> @test9(<8 x i16> %a, <8 x i16> %b) {
entry:
%v = or <8 x i16> %a, %b
ret <8 x i16> %v
; CHECK-LABEL: @test9
; CHECK: xxlor 34, 34, 35
; CHECK: blr
}
define <16 x i8> @test10(<16 x i8> %a, <16 x i8> %b) {
entry:
%v = or <16 x i8> %a, %b
ret <16 x i8> %v
; CHECK-LABEL: @test10
; CHECK: xxlor 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test11(<4 x i32> %a, <4 x i32> %b) {
entry:
%v = and <4 x i32> %a, %b
ret <4 x i32> %v
; CHECK-LABEL: @test11
; CHECK: xxland 34, 34, 35
; CHECK: blr
}
define <8 x i16> @test12(<8 x i16> %a, <8 x i16> %b) {
entry:
%v = and <8 x i16> %a, %b
ret <8 x i16> %v
; CHECK-LABEL: @test12
; CHECK: xxland 34, 34, 35
; CHECK: blr
}
define <16 x i8> @test13(<16 x i8> %a, <16 x i8> %b) {
entry:
%v = and <16 x i8> %a, %b
ret <16 x i8> %v
; CHECK-LABEL: @test13
; CHECK: xxland 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test14(<4 x i32> %a, <4 x i32> %b) {
entry:
%v = or <4 x i32> %a, %b
%w = xor <4 x i32> %v, <i32 -1, i32 -1, i32 -1, i32 -1>
ret <4 x i32> %w
; CHECK-LABEL: @test14
; CHECK: xxlnor 34, 34, 35
; CHECK: blr
}
define <8 x i16> @test15(<8 x i16> %a, <8 x i16> %b) {
entry:
%v = or <8 x i16> %a, %b
%w = xor <8 x i16> %v, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
ret <8 x i16> %w
; CHECK-LABEL: @test15
; CHECK: xxlnor 34, 34, 35
; CHECK: blr
}
define <16 x i8> @test16(<16 x i8> %a, <16 x i8> %b) {
entry:
%v = or <16 x i8> %a, %b
%w = xor <16 x i8> %v, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
ret <16 x i8> %w
; CHECK-LABEL: @test16
; CHECK: xxlnor 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test17(<4 x i32> %a, <4 x i32> %b) {
entry:
%w = xor <4 x i32> %b, <i32 -1, i32 -1, i32 -1, i32 -1>
%v = and <4 x i32> %a, %w
ret <4 x i32> %v
; CHECK-LABEL: @test17
; CHECK: xxlandc 34, 34, 35
; CHECK: blr
}
define <8 x i16> @test18(<8 x i16> %a, <8 x i16> %b) {
entry:
%w = xor <8 x i16> %b, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
%v = and <8 x i16> %a, %w
ret <8 x i16> %v
; CHECK-LABEL: @test18
; CHECK: xxlandc 34, 34, 35
; CHECK: blr
}
define <16 x i8> @test19(<16 x i8> %a, <16 x i8> %b) {
entry:
%w = xor <16 x i8> %b, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
%v = and <16 x i8> %a, %w
ret <16 x i8> %v
; CHECK-LABEL: @test19
; CHECK: xxlandc 34, 34, 35
; CHECK: blr
}
define <4 x i32> @test20(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c, <4 x i32> %d) {
entry:
%m = icmp eq <4 x i32> %c, %d
%v = select <4 x i1> %m, <4 x i32> %a, <4 x i32> %b
ret <4 x i32> %v
; CHECK-LABEL: @test20
; CHECK: vcmpequw {{[0-9]+}}, 4, 5
; CHECK: xxsel 34, 35, 34, {{[0-9]+}}
; CHECK: blr
}
define <4 x float> @test21(<4 x float> %a, <4 x float> %b, <4 x float> %c, <4 x float> %d) {
entry:
%m = fcmp oeq <4 x float> %c, %d
%v = select <4 x i1> %m, <4 x float> %a, <4 x float> %b
ret <4 x float> %v
; CHECK-LABEL: @test21
; CHECK: xvcmpeqsp [[V1:[0-9]+]], 36, 37
; CHECK: xxsel 34, 35, 34, [[V1]]
; CHECK: blr
}
define <4 x float> @test22(<4 x float> %a, <4 x float> %b, <4 x float> %c, <4 x float> %d) {
entry:
%m = fcmp ueq <4 x float> %c, %d
%v = select <4 x i1> %m, <4 x float> %a, <4 x float> %b
ret <4 x float> %v
; CHECK-LABEL: @test22
; CHECK-DAG: xvcmpeqsp {{[0-9]+}}, 37, 37
; CHECK-DAG: xvcmpeqsp {{[0-9]+}}, 36, 36
; CHECK-DAG: xvcmpeqsp {{[0-9]+}}, 36, 37
; CHECK-DAG: xxlnor
; CHECK-DAG: xxlnor
; CHECK-DAG: xxlor
; CHECK-DAG: xxlor
; CHECK: xxsel 34, 35, 34, {{[0-9]+}}
; CHECK: blr
}
define <8 x i16> @test23(<8 x i16> %a, <8 x i16> %b, <8 x i16> %c, <8 x i16> %d) {
entry:
%m = icmp eq <8 x i16> %c, %d
%v = select <8 x i1> %m, <8 x i16> %a, <8 x i16> %b
ret <8 x i16> %v
; CHECK-LABEL: @test23
; CHECK: vcmpequh {{[0-9]+}}, 4, 5
; CHECK: xxsel 34, 35, 34, {{[0-9]+}}
; CHECK: blr
}
define <16 x i8> @test24(<16 x i8> %a, <16 x i8> %b, <16 x i8> %c, <16 x i8> %d) {
entry:
%m = icmp eq <16 x i8> %c, %d
%v = select <16 x i1> %m, <16 x i8> %a, <16 x i8> %b
ret <16 x i8> %v
; CHECK-LABEL: @test24
; CHECK: vcmpequb {{[0-9]+}}, 4, 5
; CHECK: xxsel 34, 35, 34, {{[0-9]+}}
; CHECK: blr
}
define <2 x double> @test25(<2 x double> %a, <2 x double> %b, <2 x double> %c, <2 x double> %d) {
entry:
%m = fcmp oeq <2 x double> %c, %d
%v = select <2 x i1> %m, <2 x double> %a, <2 x double> %b
ret <2 x double> %v
; CHECK-LABEL: @test25
; CHECK: xvcmpeqdp [[V1:[0-9]+]], 36, 37
; CHECK: xxsel 34, 35, 34, [[V1]]
; CHECK: blr
}
define <2 x i64> @test26(<2 x i64> %a, <2 x i64> %b) {
%v = add <2 x i64> %a, %b
ret <2 x i64> %v
; CHECK-LABEL: @test26
; Make sure we use only two stores (one for each operand).
; CHECK: stxvd2x 35,
; CHECK: stxvd2x 34,
; CHECK-NOT: stxvd2x
; FIXME: The code quality here is not good; just make sure we do something for now.
; CHECK: add
; CHECK: add
; CHECK: blr
}
define <2 x i64> @test27(<2 x i64> %a, <2 x i64> %b) {
%v = and <2 x i64> %a, %b
ret <2 x i64> %v
; CHECK-LABEL: @test27
; CHECK: xxland 34, 34, 35
; CHECK: blr
}
define <2 x double> @test28(<2 x double>* %a) {
%v = load <2 x double>* %a, align 16
ret <2 x double> %v
; CHECK-LABEL: @test28
; CHECK: lxvd2x 34, 0, 3
; CHECK: blr
}
define void @test29(<2 x double>* %a, <2 x double> %b) {
store <2 x double> %b, <2 x double>* %a, align 16
ret void
; CHECK-LABEL: @test29
; CHECK: stxvd2x 34, 0, 3
; CHECK: blr
}
define <2 x double> @test28u(<2 x double>* %a) {
%v = load <2 x double>* %a, align 8
ret <2 x double> %v
; CHECK-LABEL: @test28u
; CHECK: lxvd2x 34, 0, 3
; CHECK: blr
}
define void @test29u(<2 x double>* %a, <2 x double> %b) {
store <2 x double> %b, <2 x double>* %a, align 8
ret void
; CHECK-LABEL: @test29u
; CHECK: stxvd2x 34, 0, 3
; CHECK: blr
}
define <2 x i64> @test30(<2 x i64>* %a) {
%v = load <2 x i64>* %a, align 16
ret <2 x i64> %v
; CHECK-LABEL: @test30
; CHECK: lxvd2x 34, 0, 3
; CHECK: blr
}
define void @test31(<2 x i64>* %a, <2 x i64> %b) {
store <2 x i64> %b, <2 x i64>* %a, align 16
ret void
; CHECK-LABEL: @test31
; CHECK: stxvd2x 34, 0, 3
; CHECK: blr
}
define <4 x float> @test32(<4 x float>* %a) {
%v = load <4 x float>* %a, align 16
ret <4 x float> %v
; CHECK-LABEL: @test32
; CHECK: lxvw4x 34, 0, 3
; CHECK: blr
}
define void @test33(<4 x float>* %a, <4 x float> %b) {
store <4 x float> %b, <4 x float>* %a, align 16
ret void
; CHECK-LABEL: @test33
; CHECK: stxvw4x 34, 0, 3
; CHECK: blr
}
define <4 x float> @test32u(<4 x float>* %a) {
%v = load <4 x float>* %a, align 8
ret <4 x float> %v
; CHECK-LABEL: @test32u
; CHECK-DAG: lvsl
; CHECK-DAG: lvx
; CHECK-DAG: lvx
; CHECK: vperm 2,
; CHECK: blr
}
define void @test33u(<4 x float>* %a, <4 x float> %b) {
store <4 x float> %b, <4 x float>* %a, align 8
ret void
; CHECK-LABEL: @test33u
; CHECK: stxvw4x 34, 0, 3
; CHECK: blr
}
define <4 x i32> @test34(<4 x i32>* %a) {
%v = load <4 x i32>* %a, align 16
ret <4 x i32> %v
; CHECK-LABEL: @test34
; CHECK: lxvw4x 34, 0, 3
; CHECK: blr
}
define void @test35(<4 x i32>* %a, <4 x i32> %b) {
store <4 x i32> %b, <4 x i32>* %a, align 16
ret void
; CHECK-LABEL: @test35
; CHECK: stxvw4x 34, 0, 3
; CHECK: blr
}
define <2 x double> @test40(<2 x i64> %a) {
%v = uitofp <2 x i64> %a to <2 x double>
ret <2 x double> %v
; CHECK-LABEL: @test40
; CHECK: xvcvuxddp 34, 34
; CHECK: blr
}
define <2 x double> @test41(<2 x i64> %a) {
%v = sitofp <2 x i64> %a to <2 x double>
ret <2 x double> %v
; CHECK-LABEL: @test41
; CHECK: xvcvsxddp 34, 34
; CHECK: blr
}
define <2 x i64> @test42(<2 x double> %a) {
%v = fptoui <2 x double> %a to <2 x i64>
ret <2 x i64> %v
; CHECK-LABEL: @test42
; CHECK: xvcvdpuxds 34, 34
; CHECK: blr
}
define <2 x i64> @test43(<2 x double> %a) {
%v = fptosi <2 x double> %a to <2 x i64>
ret <2 x i64> %v
; CHECK-LABEL: @test43
; CHECK: xvcvdpsxds 34, 34
; CHECK: blr
}
define <2 x float> @test44(<2 x i64> %a) {
%v = uitofp <2 x i64> %a to <2 x float>
ret <2 x float> %v
; CHECK-LABEL: @test44
; FIXME: The code quality here looks pretty bad.
; CHECK: blr
}
define <2 x float> @test45(<2 x i64> %a) {
%v = sitofp <2 x i64> %a to <2 x float>
ret <2 x float> %v
; CHECK-LABEL: @test45
; FIXME: The code quality here looks pretty bad.
; CHECK: blr
}
define <2 x i64> @test46(<2 x float> %a) {
%v = fptoui <2 x float> %a to <2 x i64>
ret <2 x i64> %v
; CHECK-LABEL: @test46
; FIXME: The code quality here looks pretty bad.
; CHECK: blr
}
define <2 x i64> @test47(<2 x float> %a) {
%v = fptosi <2 x float> %a to <2 x i64>
ret <2 x i64> %v
; CHECK-LABEL: @test47
; FIXME: The code quality here looks pretty bad.
; CHECK: blr
}
define <2 x double> @test50(double* %a) {
%v = load double* %a, align 8
%w = insertelement <2 x double> undef, double %v, i32 0
%x = insertelement <2 x double> %w, double %v, i32 1
ret <2 x double> %x
; CHECK-LABEL: @test50
; CHECK: lxvdsx 34, 0, 3
; CHECK: blr
}
define <2 x double> @test51(<2 x double> %a, <2 x double> %b) {
%v = shufflevector <2 x double> %a, <2 x double> %b, <2 x i32> <i32 0, i32 0>
ret <2 x double> %v
; CHECK-LABEL: @test51
; CHECK: xxpermdi 34, 34, 34, 0
; CHECK: blr
}
define <2 x double> @test52(<2 x double> %a, <2 x double> %b) {
%v = shufflevector <2 x double> %a, <2 x double> %b, <2 x i32> <i32 0, i32 2>
ret <2 x double> %v
; CHECK-LABEL: @test52
; CHECK: xxpermdi 34, 34, 35, 0
; CHECK: blr
}
define <2 x double> @test53(<2 x double> %a, <2 x double> %b) {
%v = shufflevector <2 x double> %a, <2 x double> %b, <2 x i32> <i32 2, i32 0>
ret <2 x double> %v
; CHECK-LABEL: @test53
; CHECK: xxpermdi 34, 35, 34, 0
; CHECK: blr
}
define <2 x double> @test54(<2 x double> %a, <2 x double> %b) {
%v = shufflevector <2 x double> %a, <2 x double> %b, <2 x i32> <i32 1, i32 2>
ret <2 x double> %v
; CHECK-LABEL: @test54
; CHECK: xxpermdi 34, 34, 35, 2
; CHECK: blr
}
define <2 x double> @test55(<2 x double> %a, <2 x double> %b) {
%v = shufflevector <2 x double> %a, <2 x double> %b, <2 x i32> <i32 1, i32 3>
ret <2 x double> %v
; CHECK-LABEL: @test55
; CHECK: xxpermdi 34, 34, 35, 3
; CHECK: blr
}
define <2 x i64> @test56(<2 x i64> %a, <2 x i64> %b) {
%v = shufflevector <2 x i64> %a, <2 x i64> %b, <2 x i32> <i32 1, i32 3>
ret <2 x i64> %v
; CHECK-LABEL: @test56
; CHECK: xxpermdi 34, 34, 35, 3
; CHECK: blr
}
define <2 x i64> @test60(<2 x i64> %a, <2 x i64> %b) {
%v = shl <2 x i64> %a, %b
ret <2 x i64> %v
; CHECK-LABEL: @test60
; This should scalarize, and the current code quality is not good.
; CHECK: stxvd2x
; CHECK: stxvd2x
; CHECK: sld
; CHECK: sld
; CHECK: lxvd2x
; CHECK: blr
}
define <2 x i64> @test61(<2 x i64> %a, <2 x i64> %b) {
%v = lshr <2 x i64> %a, %b
ret <2 x i64> %v
; CHECK-LABEL: @test61
; This should scalarize, and the current code quality is not good.
; CHECK: stxvd2x
; CHECK: stxvd2x
; CHECK: srd
; CHECK: srd
; CHECK: lxvd2x
; CHECK: blr
}
define <2 x i64> @test62(<2 x i64> %a, <2 x i64> %b) {
%v = ashr <2 x i64> %a, %b
ret <2 x i64> %v
; CHECK-LABEL: @test62
; This should scalarize, and the current code quality is not good.
; CHECK: stxvd2x
; CHECK: stxvd2x
; CHECK: srad
; CHECK: srad
; CHECK: lxvd2x
; CHECK: blr
}
define double @test63(<2 x double> %a) {
%v = extractelement <2 x double> %a, i32 0
ret double %v
; CHECK-LABEL: @test63
; CHECK: xxlor 1, 34, 34
; CHECK: blr
}
define double @test64(<2 x double> %a) {
%v = extractelement <2 x double> %a, i32 1
ret double %v
; CHECK-LABEL: @test64
; CHECK: xxpermdi 1, 34, 34, 2
; CHECK: blr
}
define <2 x i1> @test65(<2 x i64> %a, <2 x i64> %b) {
%w = icmp eq <2 x i64> %a, %b
ret <2 x i1> %w
; CHECK-LABEL: @test65
; CHECK: vcmpequw 2, 2, 3
; CHECK: blr
}
define <2 x i1> @test66(<2 x i64> %a, <2 x i64> %b) {
%w = icmp ne <2 x i64> %a, %b
ret <2 x i1> %w
; CHECK-LABEL: @test66
; CHECK: vcmpequw {{[0-9]+}}, 2, 3
; CHECK: xxlnor 34, {{[0-9]+}}, {{[0-9]+}}
; CHECK: blr
}
define <2 x i1> @test67(<2 x i64> %a, <2 x i64> %b) {
%w = icmp ult <2 x i64> %a, %b
ret <2 x i1> %w
; CHECK-LABEL: @test67
; This should scalarize, and the current code quality is not good.
; CHECK: stxvd2x
; CHECK: stxvd2x
; CHECK: cmpld
; CHECK: cmpld
; CHECK: lxvd2x
; CHECK: blr
}
define <2 x double> @test68(<2 x i32> %a) {
%w = sitofp <2 x i32> %a to <2 x double>
ret <2 x double> %w
; CHECK-LABEL: @test68
; CHECK: xxsldwi [[V1:[0-9]+]], 34, 34, 1
; CHECK: xvcvsxwdp 34, [[V1]]
; CHECK: blr
}
define <2 x double> @test69(<2 x i16> %a) {
%w = sitofp <2 x i16> %a to <2 x double>
ret <2 x double> %w
; CHECK-LABEL: @test69
; CHECK: vspltisw [[V1:[0-9]+]], 8
; CHECK: vadduwm [[V2:[0-9]+]], [[V1]], [[V1]]
; CHECK: vslw [[V3:[0-9]+]], 2, [[V2]]
; CHECK: vsraw {{[0-9]+}}, [[V3]], [[V2]]
; CHECK: xxsldwi [[V4:[0-9]+]], {{[0-9]+}}, {{[0-9]+}}, 1
; CHECK: xvcvsxwdp 34, [[V4]]
; CHECK: blr
}
define <2 x double> @test70(<2 x i8> %a) {
%w = sitofp <2 x i8> %a to <2 x double>
ret <2 x double> %w
; CHECK-LABEL: @test70
; CHECK: vspltisw [[V1:[0-9]+]], 12
; CHECK: vadduwm [[V2:[0-9]+]], [[V1]], [[V1]]
; CHECK: vslw [[V3:[0-9]+]], 2, [[V2]]
; CHECK: vsraw {{[0-9]+}}, [[V3]], [[V2]]
; CHECK: xxsldwi [[V4:[0-9]+]], {{[0-9]+}}, {{[0-9]+}}, 1
; CHECK: xvcvsxwdp 34, [[V4]]
; CHECK: blr
}
define <2 x i32> @test80(i32 %v) {
%b1 = insertelement <2 x i32> undef, i32 %v, i32 0
%b2 = shufflevector <2 x i32> %b1, <2 x i32> undef, <2 x i32> zeroinitializer
%i = add <2 x i32> %b2, <i32 2, i32 3>
ret <2 x i32> %i
; CHECK-LABEL: @test80
; CHECK-DAG: addi [[R1:[0-9]+]], 3, 3
; CHECK-DAG: addi [[R2:[0-9]+]], 1, -16
; CHECK-DAG: addi [[R3:[0-9]+]], 3, 2
; CHECK: std [[R1]], -8(1)
; CHECK: std [[R3]], -16(1)
; CHECK: lxvd2x 34, 0, [[R2]]
; CHECK-NOT: stxvd2x
; CHECK: blr
}
define <2 x double> @test81(<4 x float> %b) {
%w = bitcast <4 x float> %b to <2 x double>
ret <2 x double> %w
; CHECK-LABEL: @test81
; CHECK: blr
}