1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s
4 ;int popcount8(unsigned char i) {
5 ; i = i - ((i >> 1) & 0x55);
6 ; i = (i & 0x33) + ((i >> 2) & 0x33);
7 ; i = ((i + (i >> 4)) & 0x0F);
8 ; return (i * 0x01010101);
10 define signext i32 @popcount8(i8 zeroext %0) {
11 ; CHECK-LABEL: @popcount8(
12 ; CHECK-NEXT: [[TMP2:%.*]] = lshr i8 [[TMP0:%.*]], 1
13 ; CHECK-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], 85
14 ; CHECK-NEXT: [[TMP4:%.*]] = sub i8 [[TMP0]], [[TMP3]]
15 ; CHECK-NEXT: [[TMP5:%.*]] = and i8 [[TMP4]], 51
16 ; CHECK-NEXT: [[TMP6:%.*]] = lshr i8 [[TMP4]], 2
17 ; CHECK-NEXT: [[TMP7:%.*]] = and i8 [[TMP6]], 51
18 ; CHECK-NEXT: [[TMP8:%.*]] = add nuw nsw i8 [[TMP7]], [[TMP5]]
19 ; CHECK-NEXT: [[TMP9:%.*]] = lshr i8 [[TMP8]], 4
20 ; CHECK-NEXT: [[TMP10:%.*]] = add nuw nsw i8 [[TMP9]], [[TMP8]]
21 ; CHECK-NEXT: [[TMP11:%.*]] = and i8 [[TMP10]], 15
22 ; CHECK-NEXT: [[TMP12:%.*]] = zext i8 [[TMP11]] to i32
23 ; CHECK-NEXT: ret i32 [[TMP12]]
31 %8 = add nuw nsw i8 %7, %5
33 %10 = add nuw nsw i8 %9, %8
35 %12 = zext i8 %11 to i32
39 ;int popcount32(unsigned i) {
40 ; i = i - ((i >> 1) & 0x55555555);
41 ; i = (i & 0x33333333) + ((i >> 2) & 0x33333333);
42 ; i = ((i + (i >> 4)) & 0x0F0F0F0F);
43 ; return (i * 0x01010101) >> 24;
45 define signext i32 @popcount32(i32 zeroext %0) {
46 ; CHECK-LABEL: @popcount32(
47 ; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.ctpop.i32(i32 [[TMP0:%.*]])
48 ; CHECK-NEXT: ret i32 [[TMP2]]
51 %3 = and i32 %2, 1431655765
53 %5 = and i32 %4, 858993459
55 %7 = and i32 %6, 858993459
56 %8 = add nuw nsw i32 %7, %5
58 %10 = add nuw nsw i32 %9, %8
59 %11 = and i32 %10, 252645135
60 %12 = mul i32 %11, 16843009
61 %13 = lshr i32 %12, 24
65 ;int popcount64(unsigned long long i) {
66 ; i = i - ((i >> 1) & 0x5555555555555555);
67 ; i = (i & 0x3333333333333333) + ((i >> 2) & 0x3333333333333333);
68 ; i = ((i + (i >> 4)) & 0x0F0F0F0F0F0F0F0F);
69 ; return (i * 0x0101010101010101) >> 56;
71 define signext i32 @popcount64(i64 %0) {
72 ; CHECK-LABEL: @popcount64(
73 ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.ctpop.i64(i64 [[TMP0:%.*]])
74 ; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[TMP2]] to i32
75 ; CHECK-NEXT: ret i32 [[TMP3]]
78 %3 = and i64 %2, 6148914691236517205
80 %5 = and i64 %4, 3689348814741910323
82 %7 = and i64 %6, 3689348814741910323
83 %8 = add nuw nsw i64 %7, %5
85 %10 = add nuw nsw i64 %9, %8
86 %11 = and i64 %10, 1085102592571150095
87 %12 = mul i64 %11, 72340172838076673
88 %13 = lshr i64 %12, 56
89 %14 = trunc i64 %13 to i32
93 ;int popcount128(__uint128_t i) {
94 ; __uint128_t x = 0x5555555555555555;
96 ; x |= 0x5555555555555555;
97 ; __uint128_t y = 0x3333333333333333;
99 ; y |= 0x3333333333333333;
100 ; __uint128_t z = 0x0f0f0f0f0f0f0f0f;
102 ; z |= 0x0f0f0f0f0f0f0f0f;
103 ; __uint128_t a = 0x0101010101010101;
105 ; a |= 0x0101010101010101;
106 ; unsigned mask = 120;
107 ; i = i - ((i >> 1) & x);
108 ; i = (i & y) + ((i >> 2) & y);
109 ; i = ((i + (i >> 4)) & z);
110 ; return (i * a) >> mask;
112 define signext i32 @popcount128(i128 %0) {
113 ; CHECK-LABEL: @popcount128(
114 ; CHECK-NEXT: [[TMP2:%.*]] = call i128 @llvm.ctpop.i128(i128 [[TMP0:%.*]])
115 ; CHECK-NEXT: [[TMP3:%.*]] = trunc i128 [[TMP2]] to i32
116 ; CHECK-NEXT: ret i32 [[TMP3]]
119 %3 = and i128 %2, 113427455640312821154458202477256070485
121 %5 = and i128 %4, 68056473384187692692674921486353642291
123 %7 = and i128 %6, 68056473384187692692674921486353642291
124 %8 = add nuw nsw i128 %7, %5
126 %10 = add nuw nsw i128 %9, %8
127 %11 = and i128 %10, 20016609818878733144904388672456953615
128 %12 = mul i128 %11, 1334440654591915542993625911497130241
129 %13 = lshr i128 %12, 120
130 %14 = trunc i128 %13 to i32
134 ;vector unsigned char popcount8vec(vector unsigned char i)
136 ; i = i - ((i>> 1) & 0x55);
137 ; i = (i & 0x33) + ((i >> 2) & 0x33);
138 ; i = ((i + (i >> 4)) & 0x0F);
141 define <16 x i8> @popcount8vec(<16 x i8> %0) {
142 ; CHECK-LABEL: @popcount8vec(
143 ; CHECK-NEXT: [[TMP2:%.*]] = lshr <16 x i8> [[TMP0:%.*]], splat (i8 1)
144 ; CHECK-NEXT: [[TMP3:%.*]] = and <16 x i8> [[TMP2]], splat (i8 85)
145 ; CHECK-NEXT: [[TMP4:%.*]] = sub <16 x i8> [[TMP0]], [[TMP3]]
146 ; CHECK-NEXT: [[TMP5:%.*]] = and <16 x i8> [[TMP4]], splat (i8 51)
147 ; CHECK-NEXT: [[TMP6:%.*]] = lshr <16 x i8> [[TMP4]], splat (i8 2)
148 ; CHECK-NEXT: [[TMP7:%.*]] = and <16 x i8> [[TMP6]], splat (i8 51)
149 ; CHECK-NEXT: [[TMP8:%.*]] = add nuw nsw <16 x i8> [[TMP7]], [[TMP5]]
150 ; CHECK-NEXT: [[TMP9:%.*]] = lshr <16 x i8> [[TMP8]], splat (i8 4)
151 ; CHECK-NEXT: [[TMP10:%.*]] = add nuw nsw <16 x i8> [[TMP9]], [[TMP8]]
152 ; CHECK-NEXT: [[TMP11:%.*]] = and <16 x i8> [[TMP10]], splat (i8 15)
153 ; CHECK-NEXT: ret <16 x i8> [[TMP11]]
155 %2 = lshr <16 x i8> %0, <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>
156 %3 = and <16 x i8> %2, <i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85, i8 85>
157 %4 = sub <16 x i8> %0, %3
158 %5 = and <16 x i8> %4, <i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51>
159 %6 = lshr <16 x i8> %4, <i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2, i8 2>
160 %7 = and <16 x i8> %6, <i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51, i8 51>
161 %8 = add nuw nsw <16 x i8> %7, %5
162 %9 = lshr <16 x i8> %8, <i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4>
163 %10 = add nuw nsw <16 x i8> %9, %8
164 %11 = and <16 x i8> %10, <i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15, i8 15>
168 ;vector unsigned int popcount32vec(vector unsigned int i)
170 ; i = i - ((i>> 1) & 0x55555555);
171 ; i = (i & 0x33333333) + ((i >> 2) & 0x33333333);
172 ; i = ((i + (i >> 4)) & 0x0F0F0F0F);
173 ; return (i * 0x01010101) >> 24;
175 define <4 x i32> @popcount32vec(<4 x i32> %0) {
176 ; CHECK-LABEL: @popcount32vec(
177 ; CHECK-NEXT: [[TMP2:%.*]] = call <4 x i32> @llvm.ctpop.v4i32(<4 x i32> [[TMP0:%.*]])
178 ; CHECK-NEXT: ret <4 x i32> [[TMP2]]
180 %2 = lshr <4 x i32> %0, <i32 1, i32 1, i32 1, i32 1>
181 %3 = and <4 x i32> %2, <i32 1431655765, i32 1431655765, i32 1431655765, i32 1431655765>
182 %4 = sub <4 x i32> %0, %3
183 %5 = and <4 x i32> %4, <i32 858993459, i32 858993459, i32 858993459, i32 858993459>
184 %6 = lshr <4 x i32> %4, <i32 2, i32 2, i32 2, i32 2>
185 %7 = and <4 x i32> %6, <i32 858993459, i32 858993459, i32 858993459, i32 858993459>
186 %8 = add nuw nsw <4 x i32> %7, %5
187 %9 = lshr <4 x i32> %8, <i32 4, i32 4, i32 4, i32 4>
188 %10 = add nuw nsw <4 x i32> %9, %8
189 %11 = and <4 x i32> %10, <i32 252645135, i32 252645135, i32 252645135, i32 252645135>
190 %12 = mul <4 x i32> %11, <i32 16843009, i32 16843009, i32 16843009, i32 16843009>
191 %13 = lshr <4 x i32> %12, <i32 24, i32 24, i32 24, i32 24>