1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
6 tracksRegLiveness: true
11 ; MIPS32-LABEL: name: cttz_i32
12 ; MIPS32: liveins: $a0
13 ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
14 ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
15 ; MIPS32: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[C]]
16 ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C]]
17 ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[XOR]], [[ADD]]
18 ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
19 ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[AND]](s32)
20 ; MIPS32: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C1]], [[CTLZ]]
21 ; MIPS32: $v0 = COPY [[SUB]](s32)
22 ; MIPS32: RetRA implicit $v0
24 %1:_(s32) = G_CTTZ %0(s32)
32 tracksRegLiveness: true
37 ; MIPS32-LABEL: name: cttz_i64
38 ; MIPS32: liveins: $a0, $a1
39 ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
40 ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
41 ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
42 ; MIPS32: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[COPY]](s32), [[C]]
43 ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
44 ; MIPS32: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[COPY1]], [[C1]]
45 ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY1]], [[C1]]
46 ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[XOR]], [[ADD]]
47 ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
48 ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[AND]](s32)
49 ; MIPS32: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C2]], [[CTLZ]]
50 ; MIPS32: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[SUB]], [[C2]]
51 ; MIPS32: [[XOR1:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[C1]]
52 ; MIPS32: [[ADD2:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C1]]
53 ; MIPS32: [[AND1:%[0-9]+]]:_(s32) = G_AND [[XOR1]], [[ADD2]]
54 ; MIPS32: [[CTLZ1:%[0-9]+]]:_(s32) = G_CTLZ [[AND1]](s32)
55 ; MIPS32: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[C2]], [[CTLZ1]]
56 ; MIPS32: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
57 ; MIPS32: [[COPY2:%[0-9]+]]:_(s32) = COPY [[ICMP]](s32)
58 ; MIPS32: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C3]]
59 ; MIPS32: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND2]](s32), [[ADD1]], [[SUB1]]
60 ; MIPS32: $v0 = COPY [[SELECT]](s32)
61 ; MIPS32: $v1 = COPY [[C]](s32)
62 ; MIPS32: RetRA implicit $v0, implicit $v1
65 %0:_(s64) = G_MERGE_VALUES %1(s32), %2(s32)
66 %3:_(s64) = G_CTTZ %0(s64)
67 %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %3(s64)
70 RetRA implicit $v0, implicit $v1
74 name: ffs_i32_expansion
76 tracksRegLiveness: true
81 ; MIPS32-LABEL: name: ffs_i32_expansion
82 ; MIPS32: liveins: $a0
83 ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
84 ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
85 ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
86 ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
87 ; MIPS32: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[C2]]
88 ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C2]]
89 ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[XOR]], [[ADD]]
90 ; MIPS32: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
91 ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[AND]](s32)
92 ; MIPS32: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ]]
93 ; MIPS32: [[ADD1:%[0-9]+]]:_(s32) = nuw nsw G_ADD [[SUB]], [[C]]
94 ; MIPS32: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[COPY]](s32), [[C1]]
95 ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY [[ICMP]](s32)
96 ; MIPS32: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
97 ; MIPS32: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND1]](s32), [[C1]], [[ADD1]]
98 ; MIPS32: $v0 = COPY [[SELECT]](s32)
99 ; MIPS32: RetRA implicit $v0
101 %2:_(s32) = G_CONSTANT i32 1
102 %4:_(s32) = G_CONSTANT i32 0
103 %1:_(s32) = G_CTTZ_ZERO_UNDEF %0(s32)
104 %3:_(s32) = nuw nsw G_ADD %1, %2
105 %5:_(s1) = G_ICMP intpred(eq), %0(s32), %4
106 %6:_(s32) = G_SELECT %5(s1), %4, %3
112 name: ffs_i64_expansion
114 tracksRegLiveness: true
119 ; MIPS32-LABEL: name: ffs_i64_expansion
120 ; MIPS32: liveins: $a0, $a1
121 ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
122 ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
123 ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
124 ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
125 ; MIPS32: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[C1]](s32), [[C1]](s32)
126 ; MIPS32: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[COPY]](s32), [[C1]]
127 ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
128 ; MIPS32: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[COPY1]], [[C2]]
129 ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY1]], [[C2]]
130 ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[XOR]], [[ADD]]
131 ; MIPS32: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
132 ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[AND]](s32)
133 ; MIPS32: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ]]
134 ; MIPS32: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[SUB]], [[C3]]
135 ; MIPS32: [[XOR1:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[C2]]
136 ; MIPS32: [[ADD2:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C2]]
137 ; MIPS32: [[AND1:%[0-9]+]]:_(s32) = G_AND [[XOR1]], [[ADD2]]
138 ; MIPS32: [[CTLZ1:%[0-9]+]]:_(s32) = G_CTLZ [[AND1]](s32)
139 ; MIPS32: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ1]]
140 ; MIPS32: [[COPY2:%[0-9]+]]:_(s32) = COPY [[ICMP]](s32)
141 ; MIPS32: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
142 ; MIPS32: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND2]](s32), [[ADD1]], [[SUB1]]
143 ; MIPS32: [[ADD3:%[0-9]+]]:_(s32) = G_ADD [[SELECT]], [[C]]
144 ; MIPS32: [[ICMP1:%[0-9]+]]:_(s32) = G_ICMP intpred(ult), [[ADD3]](s32), [[C]]
145 ; MIPS32: [[ADD4:%[0-9]+]]:_(s32) = G_ADD [[C1]], [[C1]]
146 ; MIPS32: [[COPY3:%[0-9]+]]:_(s32) = COPY [[ICMP1]](s32)
147 ; MIPS32: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
148 ; MIPS32: [[ADD5:%[0-9]+]]:_(s32) = G_ADD [[ADD4]], [[AND3]]
149 ; MIPS32: [[MV1:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[ADD3]](s32), [[ADD5]](s32)
150 ; MIPS32: [[XOR2:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[C1]]
151 ; MIPS32: [[XOR3:%[0-9]+]]:_(s32) = G_XOR [[COPY1]], [[C1]]
152 ; MIPS32: [[OR:%[0-9]+]]:_(s32) = G_OR [[XOR2]], [[XOR3]]
153 ; MIPS32: [[ICMP2:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[OR]](s32), [[C1]]
154 ; MIPS32: [[COPY4:%[0-9]+]]:_(s32) = COPY [[ICMP2]](s32)
155 ; MIPS32: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
156 ; MIPS32: [[SELECT1:%[0-9]+]]:_(s64) = G_SELECT [[AND4]](s32), [[MV]], [[MV1]]
157 ; MIPS32: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[SELECT1]](s64)
158 ; MIPS32: $v0 = COPY [[UV]](s32)
159 ; MIPS32: $v1 = COPY [[UV1]](s32)
160 ; MIPS32: RetRA implicit $v0, implicit $v1
163 %0:_(s64) = G_MERGE_VALUES %1(s32), %2(s32)
164 %4:_(s64) = G_CONSTANT i64 1
165 %6:_(s64) = G_CONSTANT i64 0
166 %3:_(s64) = G_CTTZ_ZERO_UNDEF %0(s64)
167 %5:_(s64) = nuw nsw G_ADD %3, %4
168 %7:_(s1) = G_ICMP intpred(eq), %0(s64), %6
169 %8:_(s64) = G_SELECT %7(s1), %6, %5
170 %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %8(s64)
173 RetRA implicit $v0, implicit $v1