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1; RUN: opt < %s -analyze -branch-prob | FileCheck %s
2; RUN: opt < %s -analyze -lazy-branch-prob | FileCheck %s
3; RUN: opt < %s -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s
4
5define i32 @test1(i32 %i, i32* %a) {
6; CHECK: Printing analysis {{.*}} for function 'test1'
7entry:
8  br label %body
9; CHECK: edge entry -> body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
10
11body:
12  %iv = phi i32 [ 0, %entry ], [ %next, %body ]
13  %base = phi i32 [ 0, %entry ], [ %sum, %body ]
14  %arrayidx = getelementptr inbounds i32, i32* %a, i32 %iv
15  %0 = load i32, i32* %arrayidx
16  %sum = add nsw i32 %0, %base
17  %next = add i32 %iv, 1
18  %exitcond = icmp eq i32 %next, %i
19  br i1 %exitcond, label %exit, label %body
20; CHECK: edge body -> exit probability is 0x04000000 / 0x80000000 = 3.12%
21; CHECK: edge body -> body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
22
23exit:
24  ret i32 %sum
25}
26
27define i32 @test2(i32 %i, i32 %a, i32 %b) {
28; CHECK: Printing analysis {{.*}} for function 'test2'
29entry:
30  %cond = icmp ult i32 %i, 42
31  br i1 %cond, label %then, label %else, !prof !0
32; CHECK: edge entry -> then probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
33; CHECK: edge entry -> else probability is 0x07878788 / 0x80000000 = 5.88%
34
35then:
36  br label %exit
37; CHECK: edge then -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
38
39else:
40  br label %exit
41; CHECK: edge else -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
42
43exit:
44  %result = phi i32 [ %a, %then ], [ %b, %else ]
45  ret i32 %result
46}
47
48!0 = !{!"branch_weights", i32 64, i32 4}
49
50define i32 @test3(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
51; CHECK: Printing analysis {{.*}} for function 'test3'
52entry:
53  switch i32 %i, label %case_a [ i32 1, label %case_b
54                                 i32 2, label %case_c
55                                 i32 3, label %case_d
56                                 i32 4, label %case_e ], !prof !1
57; CHECK: edge entry -> case_a probability is 0x06666666 / 0x80000000 = 5.00%
58; CHECK: edge entry -> case_b probability is 0x06666666 / 0x80000000 = 5.00%
59; CHECK: edge entry -> case_c probability is 0x66666666 / 0x80000000 = 80.00%
60; CHECK: edge entry -> case_d probability is 0x06666666 / 0x80000000 = 5.00%
61; CHECK: edge entry -> case_e probability is 0x06666666 / 0x80000000 = 5.00%
62
63case_a:
64  br label %exit
65; CHECK: edge case_a -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
66
67case_b:
68  br label %exit
69; CHECK: edge case_b -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
70
71case_c:
72  br label %exit
73; CHECK: edge case_c -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
74
75case_d:
76  br label %exit
77; CHECK: edge case_d -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
78
79case_e:
80  br label %exit
81; CHECK: edge case_e -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
82
83exit:
84  %result = phi i32 [ %a, %case_a ],
85                    [ %b, %case_b ],
86                    [ %c, %case_c ],
87                    [ %d, %case_d ],
88                    [ %e, %case_e ]
89  ret i32 %result
90}
91
92!1 = !{!"branch_weights", i32 4, i32 4, i32 64, i32 4, i32 4}
93
94define i32 @test4(i32 %x) nounwind uwtable readnone ssp {
95; CHECK: Printing analysis {{.*}} for function 'test4'
96entry:
97  %conv = sext i32 %x to i64
98  switch i64 %conv, label %return [
99    i64 0, label %sw.bb
100    i64 1, label %sw.bb
101    i64 2, label %sw.bb
102    i64 5, label %sw.bb1
103  ], !prof !2
104; CHECK: edge entry -> return probability is 0x0a8a8a8b / 0x80000000 = 8.24%
105; CHECK: edge entry -> sw.bb probability is 0x15151515 / 0x80000000 = 16.47%
106; CHECK: edge entry -> sw.bb1 probability is 0x60606060 / 0x80000000 = 75.29%
107
108sw.bb:
109  br label %return
110
111sw.bb1:
112  br label %return
113
114return:
115  %retval.0 = phi i32 [ 5, %sw.bb1 ], [ 1, %sw.bb ], [ 0, %entry ]
116  ret i32 %retval.0
117}
118
119!2 = !{!"branch_weights", i32 7, i32 6, i32 4, i32 4, i32 64}
120
121declare void @coldfunc() cold
122
123define i32 @test5(i32 %a, i32 %b, i1 %flag) {
124; CHECK: Printing analysis {{.*}} for function 'test5'
125entry:
126  br i1 %flag, label %then, label %else
127; CHECK: edge entry -> then probability is 0x07878788 / 0x80000000 = 5.88%
128; CHECK: edge entry -> else probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
129
130then:
131  call void @coldfunc()
132  br label %exit
133; CHECK: edge then -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
134
135else:
136  br label %exit
137; CHECK: edge else -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
138
139exit:
140  %result = phi i32 [ %a, %then ], [ %b, %else ]
141  ret i32 %result
142}
143
144declare i32 @regular_function(i32 %i)
145
146define i32 @test_cold_call_sites_with_prof(i32 %a, i32 %b, i1 %flag, i1 %flag2) {
147; CHECK: Printing analysis {{.*}} for function 'test_cold_call_sites_with_prof'
148entry:
149  br i1 %flag, label %then, label %else
150; CHECK: edge entry -> then probability is 0x07878788 / 0x80000000 = 5.88%
151; CHECK: edge entry -> else probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
152
153then:
154  br i1 %flag2, label %then2, label %else2, !prof !3
155; CHECK: edge then -> then2 probability is 0x7ebb907a / 0x80000000 = 99.01% [HOT edge]
156; CHECK: edge then -> else2 probability is 0x01446f86 / 0x80000000 = 0.99%
157
158then2:
159  br label %join
160; CHECK: edge then2 -> join probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
161
162else2:
163  br label %join
164; CHECK: edge else2 -> join probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
165
166join:
167  %joinresult = phi i32 [ %a, %then2 ], [ %b, %else2 ]
168  call void @coldfunc()
169  br label %exit
170; CHECK: edge join -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
171
172else:
173  br label %exit
174; CHECK: edge else -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
175
176exit:
177  %result = phi i32 [ %joinresult, %join ], [ %b, %else ]
178  ret i32 %result
179}
180
181!3 = !{!"branch_weights", i32 100, i32 1}
182
183define i32 @test_cold_call_sites(i32* %a) {
184; Test that edges to blocks post-dominated by cold call sites
185; are marked as not expected to be taken.
186; TODO(dnovillo) The calls to regular_function should not be merged, but
187; they are currently being merged. Convert this into a code generation test
188; after that is fixed.
189
190; CHECK: Printing analysis {{.*}} for function 'test_cold_call_sites'
191; CHECK: edge entry -> then probability is 0x07878788 / 0x80000000 = 5.88%
192; CHECK: edge entry -> else probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
193
194entry:
195  %gep1 = getelementptr i32, i32* %a, i32 1
196  %val1 = load i32, i32* %gep1
197  %cond1 = icmp ugt i32 %val1, 1
198  br i1 %cond1, label %then, label %else
199
200then:
201  ; This function is not declared cold, but this call site is.
202  %val4 = call i32 @regular_function(i32 %val1) cold
203  br label %exit
204
205else:
206  %gep2 = getelementptr i32, i32* %a, i32 2
207  %val2 = load i32, i32* %gep2
208  %val3 = call i32 @regular_function(i32 %val2)
209  br label %exit
210
211exit:
212  %ret = phi i32 [ %val4, %then ], [ %val3, %else ]
213  ret i32 %ret
214}
215
216; CHECK-LABEL: test_invoke_code_callsite1
217define i32 @test_invoke_code_callsite1(i1 %c) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
218entry:
219  br i1 %c, label %if.then, label %if.end
220; Edge "entry->if.end" should have higher probability based on the cold call
221; heuristic which treat %if.then as a cold block because the normal destination
222; of the invoke instruction in %if.then is post-dominated by ColdFunc().
223; CHECK:  edge entry -> if.then probability is 0x07878788 / 0x80000000 = 5.88%
224; CHECK:  edge entry -> if.end probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
225
226if.then:
227  invoke i32 @InvokeCall()
228          to label %invoke.cont unwind label %lpad
229; CHECK:  edge if.then -> invoke.cont probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
230; CHECK:  edge if.then -> lpad probability is 0x00000800 / 0x80000000 = 0.00%
231
232invoke.cont:
233  call void @ColdFunc() #0
234  br label %if.end
235
236lpad:
237  %ll = landingpad { i8*, i32 }
238          cleanup
239  br label %if.end
240
241if.end:
242  ret i32 0
243}
244
245; CHECK-LABEL: test_invoke_code_callsite2
246define i32 @test_invoke_code_callsite2(i1 %c) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
247entry:
248  br i1 %c, label %if.then, label %if.end
249
250; CHECK:  edge entry -> if.then probability is 0x40000000 / 0x80000000 = 50.00%
251; CHECK:  edge entry -> if.end probability is 0x40000000 / 0x80000000 = 50.00%
252
253if.then:
254  invoke i32 @InvokeCall()
255          to label %invoke.cont unwind label %lpad
256; The cold call heuristic should not kick in when the cold callsite is in EH path.
257; CHECK:  edge if.then -> invoke.cont probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
258; CHECK:  edge if.then -> lpad probability is 0x00000800 / 0x80000000 = 0.00%
259
260invoke.cont:
261  br label %if.end
262
263lpad:
264  %ll = landingpad { i8*, i32 }
265          cleanup
266  call void @ColdFunc() #0
267  br label %if.end
268
269if.end:
270  ret i32 0
271}
272
273; CHECK-LABEL: test_invoke_code_callsite3
274define i32 @test_invoke_code_callsite3(i1 %c) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
275entry:
276  br i1 %c, label %if.then, label %if.end
277; CHECK: edge entry -> if.then probability is 0x07878788 / 0x80000000 = 5.88%
278; CHECK: edge entry -> if.end probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
279
280if.then:
281  invoke i32 @InvokeCall()
282          to label %invoke.cont unwind label %lpad
283; Regardless of cold calls, edge weights from a invoke instruction should be
284; determined by the invoke heuristic.
285; CHECK: edge if.then -> invoke.cont probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
286; CHECK: edge if.then -> lpad probability is 0x00000800 / 0x80000000 = 0.00%
287
288invoke.cont:
289  call void @ColdFunc() #0
290  br label %if.end
291
292lpad:
293  %ll = landingpad { i8*, i32 }
294          cleanup
295  call void @ColdFunc() #0
296  br label %if.end
297
298if.end:
299  ret i32 0
300}
301
302declare i32 @__gxx_personality_v0(...)
303declare void  @ColdFunc()
304declare i32 @InvokeCall()
305
306attributes #0 = { cold }
307
308
309define i32 @zero1(i32 %i, i32 %a, i32 %b) {
310; CHECK: Printing analysis {{.*}} for function 'zero1'
311entry:
312  %cond = icmp eq i32 %i, 0
313  br i1 %cond, label %then, label %else
314; CHECK: edge entry -> then probability is 0x30000000 / 0x80000000 = 37.50%
315; CHECK: edge entry -> else probability is 0x50000000 / 0x80000000 = 62.50%
316
317then:
318  br label %exit
319
320else:
321  br label %exit
322
323exit:
324  %result = phi i32 [ %a, %then ], [ %b, %else ]
325  ret i32 %result
326}
327
328define i32 @zero2(i32 %i, i32 %a, i32 %b) {
329; CHECK: Printing analysis {{.*}} for function 'zero2'
330entry:
331  %cond = icmp ne i32 %i, -1
332  br i1 %cond, label %then, label %else
333; CHECK: edge entry -> then probability is 0x50000000 / 0x80000000 = 62.50%
334; CHECK: edge entry -> else probability is 0x30000000 / 0x80000000 = 37.50%
335
336then:
337  br label %exit
338
339else:
340  br label %exit
341
342exit:
343  %result = phi i32 [ %a, %then ], [ %b, %else ]
344  ret i32 %result
345}
346
347define i32 @zero3(i32 %i, i32 %a, i32 %b) {
348; CHECK: Printing analysis {{.*}} for function 'zero3'
349entry:
350; AND'ing with a single bit bitmask essentially leads to a bool comparison,
351; meaning we don't have probability information.
352  %and = and i32 %i, 2
353  %tobool = icmp eq i32 %and, 0
354  br i1 %tobool, label %then, label %else
355; CHECK: edge entry -> then probability is 0x40000000 / 0x80000000 = 50.00%
356; CHECK: edge entry -> else probability is 0x40000000 / 0x80000000 = 50.00%
357
358then:
359; AND'ing with other bitmask might be something else, so we still assume the
360; usual probabilities.
361  %and2 = and i32 %i, 5
362  %tobool2 = icmp eq i32 %and2, 0
363  br i1 %tobool2, label %else, label %exit
364; CHECK: edge then -> else probability is 0x30000000 / 0x80000000 = 37.50%
365; CHECK: edge then -> exit probability is 0x50000000 / 0x80000000 = 62.50%
366
367else:
368  br label %exit
369
370exit:
371  %result = phi i32 [ %a, %then ], [ %b, %else ]
372  ret i32 %result
373}
374
375define i32 @test_unreachable_with_prof_greater(i32 %a, i32 %b) {
376; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_prof_greater'
377entry:
378  %cond = icmp eq i32 %a, 42
379  br i1 %cond, label %exit, label %unr, !prof !4
380
381; CHECK:  edge entry -> exit probability is 0x7fffffff / 0x80000000 = 100.00% [HOT edge]
382; CHECK:  edge entry -> unr probability is 0x00000001 / 0x80000000 = 0.00%
383
384unr:
385  unreachable
386
387exit:
388  ret i32 %b
389}
390
391!4 = !{!"branch_weights", i32 0, i32 1}
392
393define i32 @test_unreachable_with_prof_equal(i32 %a, i32 %b) {
394; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_prof_equal'
395entry:
396  %cond = icmp eq i32 %a, 42
397  br i1 %cond, label %exit, label %unr, !prof !5
398
399; CHECK:  edge entry -> exit probability is 0x7fffffff / 0x80000000 = 100.00% [HOT edge]
400; CHECK:  edge entry -> unr probability is 0x00000001 / 0x80000000 = 0.00%
401
402unr:
403  unreachable
404
405exit:
406  ret i32 %b
407}
408
409!5 = !{!"branch_weights", i32 2147483647, i32 1}
410
411define i32 @test_unreachable_with_prof_zero(i32 %a, i32 %b) {
412; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_prof_zero'
413entry:
414  %cond = icmp eq i32 %a, 42
415  br i1 %cond, label %exit, label %unr, !prof !6
416
417; CHECK:  edge entry -> exit probability is 0x7fffffff / 0x80000000 = 100.00% [HOT edge]
418; CHECK:  edge entry -> unr probability is 0x00000001 / 0x80000000 = 0.00%
419
420unr:
421  unreachable
422
423exit:
424  ret i32 %b
425}
426
427!6 = !{!"branch_weights", i32 0, i32 0}
428
429define i32 @test_unreachable_with_prof_less(i32 %a, i32 %b) {
430; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_prof_less'
431entry:
432  %cond = icmp eq i32 %a, 42
433  br i1 %cond, label %exit, label %unr, !prof !7
434
435; CHECK:  edge entry -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
436; CHECK:  edge entry -> unr probability is 0x00000000 / 0x80000000 = 0.00%
437
438unr:
439  unreachable
440
441exit:
442  ret i32 %b
443}
444
445!7 = !{!"branch_weights", i32 1, i32 0}
446
447define i32 @test_unreachable_with_switch_prof1(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
448; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_switch_prof1'
449entry:
450  switch i32 %i, label %case_a [ i32 1, label %case_b
451                                 i32 2, label %case_c
452                                 i32 3, label %case_d
453                                 i32 4, label %case_e ], !prof !8
454; CHECK: edge entry -> case_a probability is 0x00000001 / 0x80000000 = 0.00%
455; CHECK: edge entry -> case_b probability is 0x07ffffff / 0x80000000 = 6.25%
456; CHECK: edge entry -> case_c probability is 0x67ffffff / 0x80000000 = 81.25% [HOT edge]
457; CHECK: edge entry -> case_d probability is 0x07ffffff / 0x80000000 = 6.25%
458; CHECK: edge entry -> case_e probability is 0x07ffffff / 0x80000000 = 6.25%
459
460case_a:
461  unreachable
462
463case_b:
464  br label %exit
465; CHECK: edge case_b -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
466
467case_c:
468  br label %exit
469; CHECK: edge case_c -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
470
471case_d:
472  br label %exit
473; CHECK: edge case_d -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
474
475case_e:
476  br label %exit
477; CHECK: edge case_e -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
478
479exit:
480  %result = phi i32 [ %b, %case_b ],
481                    [ %c, %case_c ],
482                    [ %d, %case_d ],
483                    [ %e, %case_e ]
484  ret i32 %result
485}
486
487!8 = !{!"branch_weights", i32 4, i32 4, i32 64, i32 4, i32 4}
488
489define i32 @test_unreachable_with_switch_prof2(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
490; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_switch_prof2'
491entry:
492  switch i32 %i, label %case_a [ i32 1, label %case_b
493                                 i32 2, label %case_c
494                                 i32 3, label %case_d
495                                 i32 4, label %case_e ], !prof !9
496; CHECK: edge entry -> case_a probability is 0x00000001 / 0x80000000 = 0.00%
497; CHECK: edge entry -> case_b probability is 0x00000001 / 0x80000000 = 0.00%
498; CHECK: edge entry -> case_c probability is 0x6aaaaaa9 / 0x80000000 = 83.33% [HOT edge]
499; CHECK: edge entry -> case_d probability is 0x0aaaaaa9 / 0x80000000 = 8.33%
500; CHECK: edge entry -> case_e probability is 0x0aaaaaa9 / 0x80000000 = 8.33%
501
502case_a:
503  unreachable
504
505case_b:
506  unreachable
507
508case_c:
509  br label %exit
510; CHECK: edge case_c -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
511
512case_d:
513  br label %exit
514; CHECK: edge case_d -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
515
516case_e:
517  br label %exit
518; CHECK: edge case_e -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
519
520exit:
521  %result = phi i32 [ %c, %case_c ],
522                    [ %d, %case_d ],
523                    [ %e, %case_e ]
524  ret i32 %result
525}
526
527!9 = !{!"branch_weights", i32 4, i32 4, i32 64, i32 4, i32 4}
528
529define i32 @test_unreachable_with_switch_prof3(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
530; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_switch_prof3'
531entry:
532  switch i32 %i, label %case_a [ i32 1, label %case_b
533                                 i32 2, label %case_c
534                                 i32 3, label %case_d
535                                 i32 4, label %case_e ], !prof !10
536; CHECK: edge entry -> case_a probability is 0x00000000 / 0x80000000 = 0.00%
537; CHECK: edge entry -> case_b probability is 0x00000001 / 0x80000000 = 0.00%
538; CHECK: edge entry -> case_c probability is 0x6e08fb82 / 0x80000000 = 85.96% [HOT edge]
539; CHECK: edge entry -> case_d probability is 0x08fb823e / 0x80000000 = 7.02%
540; CHECK: edge entry -> case_e probability is 0x08fb823e / 0x80000000 = 7.02%
541
542case_a:
543  unreachable
544
545case_b:
546  unreachable
547
548case_c:
549  br label %exit
550; CHECK: edge case_c -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
551
552case_d:
553  br label %exit
554; CHECK: edge case_d -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
555
556case_e:
557  br label %exit
558; CHECK: edge case_e -> exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
559
560exit:
561  %result = phi i32 [ %c, %case_c ],
562                    [ %d, %case_d ],
563                    [ %e, %case_e ]
564  ret i32 %result
565}
566
567!10 = !{!"branch_weights", i32 0, i32 4, i32 64, i32 4, i32 4}
568
569define i32 @test_unreachable_with_switch_prof4(i32 %i, i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
570; CHECK: Printing analysis {{.*}} for function 'test_unreachable_with_switch_prof4'
571entry:
572  switch i32 %i, label %case_a [ i32 1, label %case_b
573                                 i32 2, label %case_c
574                                 i32 3, label %case_d
575                                 i32 4, label %case_e ], !prof !11
576; CHECK: edge entry -> case_a probability is 0x1999999a / 0x80000000 = 20.00%
577; CHECK: edge entry -> case_b probability is 0x1999999a / 0x80000000 = 20.00%
578; CHECK: edge entry -> case_c probability is 0x1999999a / 0x80000000 = 20.00%
579; CHECK: edge entry -> case_d probability is 0x1999999a / 0x80000000 = 20.00%
580; CHECK: edge entry -> case_e probability is 0x1999999a / 0x80000000 = 20.00%
581
582case_a:
583  unreachable
584
585case_b:
586  unreachable
587
588case_c:
589  unreachable
590
591case_d:
592  unreachable
593
594case_e:
595  unreachable
596
597}
598
599!11 = !{!"branch_weights", i32 0, i32 4, i32 64, i32 4, i32 4}
600