1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -passes=slp-vectorizer -slp-threshold=-2 -S -pass-remarks-output=%t < %s | FileCheck %s
3 ; RUN: cat %t | FileCheck -check-prefix=YAML %s
6 ; FIXME: The threshold is changed to keep this test case a bit smaller.
7 ; The AArch64 cost model should not give such high costs to select statements.
9 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
10 target triple = "aarch64--linux"
13 ; YAML-NEXT: Pass: slp-vectorizer
14 ; YAML-NEXT: Name: VectorizedHorizontalReduction
15 ; YAML-NEXT: Function: test_select
17 ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost '
18 ; YAML-NEXT: - Cost: '-19'
19 ; YAML-NEXT: - String: ' and with tree size '
20 ; YAML-NEXT: - TreeSize: '8'
22 define i32 @test_select(ptr noalias nocapture readonly %blk1, ptr noalias nocapture readonly %blk2, i32 %lx, i32 %h) {
23 ; CHECK-LABEL: @test_select(
25 ; CHECK-NEXT: [[CMP_22:%.*]] = icmp sgt i32 [[H:%.*]], 0
26 ; CHECK-NEXT: br i1 [[CMP_22]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_END:%.*]]
27 ; CHECK: for.body.lr.ph:
28 ; CHECK-NEXT: [[IDX_EXT:%.*]] = sext i32 [[LX:%.*]] to i64
29 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
31 ; CHECK-NEXT: [[S_026:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[OP_RDX:%.*]], [[FOR_BODY]] ]
32 ; CHECK-NEXT: [[J_025:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
33 ; CHECK-NEXT: [[P2_024:%.*]] = phi ptr [ [[BLK2:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR29:%.*]], [[FOR_BODY]] ]
34 ; CHECK-NEXT: [[P1_023:%.*]] = phi ptr [ [[BLK1:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR:%.*]], [[FOR_BODY]] ]
35 ; CHECK-NEXT: [[TMP0:%.*]] = load <4 x i32>, ptr [[P1_023]], align 4
36 ; CHECK-NEXT: [[TMP1:%.*]] = load <4 x i32>, ptr [[P2_024]], align 4
37 ; CHECK-NEXT: [[TMP2:%.*]] = sub nsw <4 x i32> [[TMP0]], [[TMP1]]
38 ; CHECK-NEXT: [[TMP3:%.*]] = icmp slt <4 x i32> [[TMP2]], zeroinitializer
39 ; CHECK-NEXT: [[TMP4:%.*]] = sub nsw <4 x i32> zeroinitializer, [[TMP2]]
40 ; CHECK-NEXT: [[TMP5:%.*]] = select <4 x i1> [[TMP3]], <4 x i32> [[TMP4]], <4 x i32> [[TMP2]]
41 ; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP5]])
42 ; CHECK-NEXT: [[OP_RDX]] = add i32 [[TMP6]], [[S_026]]
43 ; CHECK-NEXT: [[ADD_PTR]] = getelementptr inbounds i32, ptr [[P1_023]], i64 [[IDX_EXT]]
44 ; CHECK-NEXT: [[ADD_PTR29]] = getelementptr inbounds i32, ptr [[P2_024]], i64 [[IDX_EXT]]
45 ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[J_025]], 1
46 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INC]], [[H]]
47 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
48 ; CHECK: for.end.loopexit:
49 ; CHECK-NEXT: br label [[FOR_END]]
51 ; CHECK-NEXT: [[S_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_RDX]], [[FOR_END_LOOPEXIT]] ]
52 ; CHECK-NEXT: ret i32 [[S_0_LCSSA]]
55 %cmp.22 = icmp sgt i32 %h, 0
56 br i1 %cmp.22, label %for.body.lr.ph, label %for.end
58 for.body.lr.ph: ; preds = %entry
59 %idx.ext = sext i32 %lx to i64
62 for.body: ; preds = %for.body, %for.body.lr.ph
63 %s.026 = phi i32 [ 0, %for.body.lr.ph ], [ %add27, %for.body ]
64 %j.025 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
65 %p2.024 = phi ptr [ %blk2, %for.body.lr.ph ], [ %add.ptr29, %for.body ]
66 %p1.023 = phi ptr [ %blk1, %for.body.lr.ph ], [ %add.ptr, %for.body ]
67 %0 = load i32, ptr %p1.023, align 4
68 %1 = load i32, ptr %p2.024, align 4
69 %sub = sub nsw i32 %0, %1
70 %cmp2 = icmp slt i32 %sub, 0
71 %sub3 = sub nsw i32 0, %sub
72 %sub3.sub = select i1 %cmp2, i32 %sub3, i32 %sub
73 %add = add nsw i32 %sub3.sub, %s.026
74 %arrayidx4 = getelementptr inbounds i32, ptr %p1.023, i64 1
75 %2 = load i32, ptr %arrayidx4, align 4
76 %arrayidx5 = getelementptr inbounds i32, ptr %p2.024, i64 1
77 %3 = load i32, ptr %arrayidx5, align 4
78 %sub6 = sub nsw i32 %2, %3
79 %cmp7 = icmp slt i32 %sub6, 0
80 %sub9 = sub nsw i32 0, %sub6
81 %v.1 = select i1 %cmp7, i32 %sub9, i32 %sub6
82 %add11 = add nsw i32 %add, %v.1
83 %arrayidx12 = getelementptr inbounds i32, ptr %p1.023, i64 2
84 %4 = load i32, ptr %arrayidx12, align 4
85 %arrayidx13 = getelementptr inbounds i32, ptr %p2.024, i64 2
86 %5 = load i32, ptr %arrayidx13, align 4
87 %sub14 = sub nsw i32 %4, %5
88 %cmp15 = icmp slt i32 %sub14, 0
89 %sub17 = sub nsw i32 0, %sub14
90 %sub17.sub14 = select i1 %cmp15, i32 %sub17, i32 %sub14
91 %add19 = add nsw i32 %add11, %sub17.sub14
92 %arrayidx20 = getelementptr inbounds i32, ptr %p1.023, i64 3
93 %6 = load i32, ptr %arrayidx20, align 4
94 %arrayidx21 = getelementptr inbounds i32, ptr %p2.024, i64 3
95 %7 = load i32, ptr %arrayidx21, align 4
96 %sub22 = sub nsw i32 %6, %7
97 %cmp23 = icmp slt i32 %sub22, 0
98 %sub25 = sub nsw i32 0, %sub22
99 %v.3 = select i1 %cmp23, i32 %sub25, i32 %sub22
100 %add27 = add nsw i32 %add19, %v.3
101 %add.ptr = getelementptr inbounds i32, ptr %p1.023, i64 %idx.ext
102 %add.ptr29 = getelementptr inbounds i32, ptr %p2.024, i64 %idx.ext
103 %inc = add nuw nsw i32 %j.025, 1
104 %exitcond = icmp eq i32 %inc, %h
105 br i1 %exitcond, label %for.end.loopexit, label %for.body
107 for.end.loopexit: ; preds = %for.body
110 for.end: ; preds = %for.end.loopexit, %entry
111 %s.0.lcssa = phi i32 [ 0, %entry ], [ %add27, %for.end.loopexit ]
115 ;; Check whether SLP can find a reduction phi whose incoming blocks are not
116 ;; the same as the block containing the phi.
118 ;; Came from code like,
121 ;; for (int j = 0; j < h; j++) {
131 define i32 @reduction_with_br(ptr noalias nocapture readonly %blk1, ptr noalias nocapture readonly %blk2, i32 %lx, i32 %h, i32 %lim) {
133 ; YAML-NEXT: Pass: slp-vectorizer
134 ; YAML-NEXT: Name: VectorizedHorizontalReduction
135 ; YAML-NEXT: Function: reduction_with_br
137 ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost '
138 ; YAML-NEXT: - Cost: '-10'
139 ; YAML-NEXT: - String: ' and with tree size '
140 ; YAML-NEXT: - TreeSize: '3'
141 ; CHECK-LABEL: @reduction_with_br(
143 ; CHECK-NEXT: [[CMP_16:%.*]] = icmp sgt i32 [[H:%.*]], 0
144 ; CHECK-NEXT: br i1 [[CMP_16]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_END:%.*]]
145 ; CHECK: for.body.lr.ph:
146 ; CHECK-NEXT: [[IDX_EXT:%.*]] = sext i32 [[LX:%.*]] to i64
147 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
149 ; CHECK-NEXT: [[S_020:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[OP_RDX:%.*]], [[IF_END:%.*]] ]
150 ; CHECK-NEXT: [[J_019:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[IF_END]] ]
151 ; CHECK-NEXT: [[P2_018:%.*]] = phi ptr [ [[BLK2:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR16:%.*]], [[IF_END]] ]
152 ; CHECK-NEXT: [[P1_017:%.*]] = phi ptr [ [[BLK1:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR:%.*]], [[IF_END]] ]
153 ; CHECK-NEXT: [[TMP0:%.*]] = load <4 x i32>, ptr [[P1_017]], align 4
154 ; CHECK-NEXT: [[TMP1:%.*]] = load <4 x i32>, ptr [[P2_018]], align 4
155 ; CHECK-NEXT: [[TMP2:%.*]] = mul nsw <4 x i32> [[TMP1]], [[TMP0]]
156 ; CHECK-NEXT: [[TMP3:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP2]])
157 ; CHECK-NEXT: [[OP_RDX]] = add i32 [[TMP3]], [[S_020]]
158 ; CHECK-NEXT: [[CMP14:%.*]] = icmp slt i32 [[OP_RDX]], [[LIM:%.*]]
159 ; CHECK-NEXT: br i1 [[CMP14]], label [[IF_END]], label [[FOR_END_LOOPEXIT:%.*]]
161 ; CHECK-NEXT: [[ADD_PTR]] = getelementptr inbounds i32, ptr [[P1_017]], i64 [[IDX_EXT]]
162 ; CHECK-NEXT: [[ADD_PTR16]] = getelementptr inbounds i32, ptr [[P2_018]], i64 [[IDX_EXT]]
163 ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[J_019]], 1
164 ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[H]]
165 ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]]
166 ; CHECK: for.end.loopexit:
167 ; CHECK-NEXT: br label [[FOR_END]]
169 ; CHECK-NEXT: [[S_1:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_RDX]], [[FOR_END_LOOPEXIT]] ]
170 ; CHECK-NEXT: ret i32 [[S_1]]
173 %cmp.16 = icmp sgt i32 %h, 0
174 br i1 %cmp.16, label %for.body.lr.ph, label %for.end
176 for.body.lr.ph: ; preds = %entry
177 %idx.ext = sext i32 %lx to i64
180 for.body: ; preds = %for.body.lr.ph, %if.end
181 %s.020 = phi i32 [ 0, %for.body.lr.ph ], [ %add13, %if.end ]
182 %j.019 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %if.end ]
183 %p2.018 = phi ptr [ %blk2, %for.body.lr.ph ], [ %add.ptr16, %if.end ]
184 %p1.017 = phi ptr [ %blk1, %for.body.lr.ph ], [ %add.ptr, %if.end ]
185 %0 = load i32, ptr %p1.017, align 4
186 %1 = load i32, ptr %p2.018, align 4
187 %mul = mul nsw i32 %1, %0
188 %add = add nsw i32 %mul, %s.020
189 %arrayidx2 = getelementptr inbounds i32, ptr %p1.017, i64 1
190 %2 = load i32, ptr %arrayidx2, align 4
191 %arrayidx3 = getelementptr inbounds i32, ptr %p2.018, i64 1
192 %3 = load i32, ptr %arrayidx3, align 4
193 %mul4 = mul nsw i32 %3, %2
194 %add5 = add nsw i32 %add, %mul4
195 %arrayidx6 = getelementptr inbounds i32, ptr %p1.017, i64 2
196 %4 = load i32, ptr %arrayidx6, align 4
197 %arrayidx7 = getelementptr inbounds i32, ptr %p2.018, i64 2
198 %5 = load i32, ptr %arrayidx7, align 4
199 %mul8 = mul nsw i32 %5, %4
200 %add9 = add nsw i32 %add5, %mul8
201 %arrayidx10 = getelementptr inbounds i32, ptr %p1.017, i64 3
202 %6 = load i32, ptr %arrayidx10, align 4
203 %arrayidx11 = getelementptr inbounds i32, ptr %p2.018, i64 3
204 %7 = load i32, ptr %arrayidx11, align 4
205 %mul12 = mul nsw i32 %7, %6
206 %add13 = add nsw i32 %add9, %mul12
207 %cmp14 = icmp slt i32 %add13, %lim
208 br i1 %cmp14, label %if.end, label %for.end.loopexit
210 if.end: ; preds = %for.body
211 %add.ptr = getelementptr inbounds i32, ptr %p1.017, i64 %idx.ext
212 %add.ptr16 = getelementptr inbounds i32, ptr %p2.018, i64 %idx.ext
213 %inc = add nuw nsw i32 %j.019, 1
214 %cmp = icmp slt i32 %inc, %h
215 br i1 %cmp, label %for.body, label %for.end.loopexit
217 for.end.loopexit: ; preds = %for.body, %if.end
220 for.end: ; preds = %for.end.loopexit, %entry
221 %s.1 = phi i32 [ 0, %entry ], [ %add13, %for.end.loopexit ]
226 ; YAML-NEXT: Pass: slp-vectorizer
227 ; YAML-NEXT: Name: VectorizedHorizontalReduction
228 ; YAML-NEXT: Function: test_unrolled_select
230 ; YAML-NEXT: - String: 'Vectorized horizontal reduction with cost '
231 ; YAML-NEXT: - Cost: '-41'
232 ; YAML-NEXT: - String: ' and with tree size '
233 ; YAML-NEXT: - TreeSize: '10'
235 define i32 @test_unrolled_select(ptr noalias nocapture readonly %blk1, ptr noalias nocapture readonly %blk2, i32 %lx, i32 %h, i32 %lim) #0 {
236 ; CHECK-LABEL: @test_unrolled_select(
238 ; CHECK-NEXT: [[CMP_43:%.*]] = icmp sgt i32 [[H:%.*]], 0
239 ; CHECK-NEXT: br i1 [[CMP_43]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_END:%.*]]
240 ; CHECK: for.body.lr.ph:
241 ; CHECK-NEXT: [[IDX_EXT:%.*]] = sext i32 [[LX:%.*]] to i64
242 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
244 ; CHECK-NEXT: [[S_047:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[OP_RDX:%.*]], [[IF_END_86:%.*]] ]
245 ; CHECK-NEXT: [[J_046:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[IF_END_86]] ]
246 ; CHECK-NEXT: [[P2_045:%.*]] = phi ptr [ [[BLK2:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR88:%.*]], [[IF_END_86]] ]
247 ; CHECK-NEXT: [[P1_044:%.*]] = phi ptr [ [[BLK1:%.*]], [[FOR_BODY_LR_PH]] ], [ [[ADD_PTR:%.*]], [[IF_END_86]] ]
248 ; CHECK-NEXT: [[TMP0:%.*]] = load <8 x i8>, ptr [[P1_044]], align 1
249 ; CHECK-NEXT: [[TMP1:%.*]] = zext <8 x i8> [[TMP0]] to <8 x i16>
250 ; CHECK-NEXT: [[TMP2:%.*]] = load <8 x i8>, ptr [[P2_045]], align 1
251 ; CHECK-NEXT: [[TMP3:%.*]] = zext <8 x i8> [[TMP2]] to <8 x i16>
252 ; CHECK-NEXT: [[TMP4:%.*]] = sub <8 x i16> [[TMP1]], [[TMP3]]
253 ; CHECK-NEXT: [[TMP5:%.*]] = sext <8 x i16> [[TMP4]] to <8 x i32>
254 ; CHECK-NEXT: [[TMP6:%.*]] = icmp slt <8 x i32> [[TMP5]], zeroinitializer
255 ; CHECK-NEXT: [[TMP7:%.*]] = sub <8 x i16> zeroinitializer, [[TMP4]]
256 ; CHECK-NEXT: [[TMP8:%.*]] = select <8 x i1> [[TMP6]], <8 x i16> [[TMP7]], <8 x i16> [[TMP4]]
257 ; CHECK-NEXT: [[TMP9:%.*]] = sext <8 x i16> [[TMP8]] to <8 x i32>
258 ; CHECK-NEXT: [[TMP10:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[TMP9]])
259 ; CHECK-NEXT: [[OP_RDX]] = add i32 [[TMP10]], [[S_047]]
260 ; CHECK-NEXT: [[CMP83:%.*]] = icmp slt i32 [[OP_RDX]], [[LIM:%.*]]
261 ; CHECK-NEXT: br i1 [[CMP83]], label [[IF_END_86]], label [[FOR_END_LOOPEXIT:%.*]]
263 ; CHECK-NEXT: [[ADD_PTR]] = getelementptr inbounds i8, ptr [[P1_044]], i64 [[IDX_EXT]]
264 ; CHECK-NEXT: [[ADD_PTR88]] = getelementptr inbounds i8, ptr [[P2_045]], i64 [[IDX_EXT]]
265 ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[J_046]], 1
266 ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[H]]
267 ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]]
268 ; CHECK: for.end.loopexit:
269 ; CHECK-NEXT: br label [[FOR_END]]
271 ; CHECK-NEXT: [[S_1:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_RDX]], [[FOR_END_LOOPEXIT]] ]
272 ; CHECK-NEXT: ret i32 [[S_1]]
275 %cmp.43 = icmp sgt i32 %h, 0
276 br i1 %cmp.43, label %for.body.lr.ph, label %for.end
278 for.body.lr.ph: ; preds = %entry
279 %idx.ext = sext i32 %lx to i64
282 for.body: ; preds = %for.body.lr.ph, %if.end.86
283 %s.047 = phi i32 [ 0, %for.body.lr.ph ], [ %add82, %if.end.86 ]
284 %j.046 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %if.end.86 ]
285 %p2.045 = phi ptr [ %blk2, %for.body.lr.ph ], [ %add.ptr88, %if.end.86 ]
286 %p1.044 = phi ptr [ %blk1, %for.body.lr.ph ], [ %add.ptr, %if.end.86 ]
287 %0 = load i8, ptr %p1.044, align 1
288 %conv = zext i8 %0 to i32
289 %1 = load i8, ptr %p2.045, align 1
290 %conv2 = zext i8 %1 to i32
291 %sub = sub nsw i32 %conv, %conv2
292 %cmp3 = icmp slt i32 %sub, 0
293 %sub5 = sub nsw i32 0, %sub
294 %sub5.sub = select i1 %cmp3, i32 %sub5, i32 %sub
295 %add = add nsw i32 %sub5.sub, %s.047
296 %arrayidx6 = getelementptr inbounds i8, ptr %p1.044, i64 1
297 %2 = load i8, ptr %arrayidx6, align 1
298 %conv7 = zext i8 %2 to i32
299 %arrayidx8 = getelementptr inbounds i8, ptr %p2.045, i64 1
300 %3 = load i8, ptr %arrayidx8, align 1
301 %conv9 = zext i8 %3 to i32
302 %sub10 = sub nsw i32 %conv7, %conv9
303 %cmp11 = icmp slt i32 %sub10, 0
304 %sub14 = sub nsw i32 0, %sub10
305 %v.1 = select i1 %cmp11, i32 %sub14, i32 %sub10
306 %add16 = add nsw i32 %add, %v.1
307 %arrayidx17 = getelementptr inbounds i8, ptr %p1.044, i64 2
308 %4 = load i8, ptr %arrayidx17, align 1
309 %conv18 = zext i8 %4 to i32
310 %arrayidx19 = getelementptr inbounds i8, ptr %p2.045, i64 2
311 %5 = load i8, ptr %arrayidx19, align 1
312 %conv20 = zext i8 %5 to i32
313 %sub21 = sub nsw i32 %conv18, %conv20
314 %cmp22 = icmp slt i32 %sub21, 0
315 %sub25 = sub nsw i32 0, %sub21
316 %sub25.sub21 = select i1 %cmp22, i32 %sub25, i32 %sub21
317 %add27 = add nsw i32 %add16, %sub25.sub21
318 %arrayidx28 = getelementptr inbounds i8, ptr %p1.044, i64 3
319 %6 = load i8, ptr %arrayidx28, align 1
320 %conv29 = zext i8 %6 to i32
321 %arrayidx30 = getelementptr inbounds i8, ptr %p2.045, i64 3
322 %7 = load i8, ptr %arrayidx30, align 1
323 %conv31 = zext i8 %7 to i32
324 %sub32 = sub nsw i32 %conv29, %conv31
325 %cmp33 = icmp slt i32 %sub32, 0
326 %sub36 = sub nsw i32 0, %sub32
327 %v.3 = select i1 %cmp33, i32 %sub36, i32 %sub32
328 %add38 = add nsw i32 %add27, %v.3
329 %arrayidx39 = getelementptr inbounds i8, ptr %p1.044, i64 4
330 %8 = load i8, ptr %arrayidx39, align 1
331 %conv40 = zext i8 %8 to i32
332 %arrayidx41 = getelementptr inbounds i8, ptr %p2.045, i64 4
333 %9 = load i8, ptr %arrayidx41, align 1
334 %conv42 = zext i8 %9 to i32
335 %sub43 = sub nsw i32 %conv40, %conv42
336 %cmp44 = icmp slt i32 %sub43, 0
337 %sub47 = sub nsw i32 0, %sub43
338 %sub47.sub43 = select i1 %cmp44, i32 %sub47, i32 %sub43
339 %add49 = add nsw i32 %add38, %sub47.sub43
340 %arrayidx50 = getelementptr inbounds i8, ptr %p1.044, i64 5
341 %10 = load i8, ptr %arrayidx50, align 1
342 %conv51 = zext i8 %10 to i32
343 %arrayidx52 = getelementptr inbounds i8, ptr %p2.045, i64 5
344 %11 = load i8, ptr %arrayidx52, align 1
345 %conv53 = zext i8 %11 to i32
346 %sub54 = sub nsw i32 %conv51, %conv53
347 %cmp55 = icmp slt i32 %sub54, 0
348 %sub58 = sub nsw i32 0, %sub54
349 %v.5 = select i1 %cmp55, i32 %sub58, i32 %sub54
350 %add60 = add nsw i32 %add49, %v.5
351 %arrayidx61 = getelementptr inbounds i8, ptr %p1.044, i64 6
352 %12 = load i8, ptr %arrayidx61, align 1
353 %conv62 = zext i8 %12 to i32
354 %arrayidx63 = getelementptr inbounds i8, ptr %p2.045, i64 6
355 %13 = load i8, ptr %arrayidx63, align 1
356 %conv64 = zext i8 %13 to i32
357 %sub65 = sub nsw i32 %conv62, %conv64
358 %cmp66 = icmp slt i32 %sub65, 0
359 %sub69 = sub nsw i32 0, %sub65
360 %sub69.sub65 = select i1 %cmp66, i32 %sub69, i32 %sub65
361 %add71 = add nsw i32 %add60, %sub69.sub65
362 %arrayidx72 = getelementptr inbounds i8, ptr %p1.044, i64 7
363 %14 = load i8, ptr %arrayidx72, align 1
364 %conv73 = zext i8 %14 to i32
365 %arrayidx74 = getelementptr inbounds i8, ptr %p2.045, i64 7
366 %15 = load i8, ptr %arrayidx74, align 1
367 %conv75 = zext i8 %15 to i32
368 %sub76 = sub nsw i32 %conv73, %conv75
369 %cmp77 = icmp slt i32 %sub76, 0
370 %sub80 = sub nsw i32 0, %sub76
371 %v.7 = select i1 %cmp77, i32 %sub80, i32 %sub76
372 %add82 = add nsw i32 %add71, %v.7
373 %cmp83 = icmp slt i32 %add82, %lim
374 br i1 %cmp83, label %if.end.86, label %for.end.loopexit
376 if.end.86: ; preds = %for.body
377 %add.ptr = getelementptr inbounds i8, ptr %p1.044, i64 %idx.ext
378 %add.ptr88 = getelementptr inbounds i8, ptr %p2.045, i64 %idx.ext
379 %inc = add nuw nsw i32 %j.046, 1
380 %cmp = icmp slt i32 %inc, %h
381 br i1 %cmp, label %for.body, label %for.end.loopexit
383 for.end.loopexit: ; preds = %for.body, %if.end.86
386 for.end: ; preds = %for.end.loopexit, %entry
387 %s.1 = phi i32 [ 0, %entry ], [ %add82, %for.end.loopexit ]