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1; RUN: opt < %s -jump-threading -disable-output
2; PR2285
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
4target triple = "x86_64-unknown-linux-gnu"
5	%struct.system__secondary_stack__mark_id = type { i64, i64 }
6
7define void @_ada_c35507b() {
8entry:
9	br label %bb
10
11bb:		; preds = %bb13, %entry
12	%ch.0 = phi i8 [ 0, %entry ], [ 0, %bb13 ]		; <i8> [#uses=1]
13	%tmp11 = icmp ugt i8 %ch.0, 31		; <i1> [#uses=1]
14	%tmp120 = call %struct.system__secondary_stack__mark_id @system__secondary_stack__ss_mark( )		; <%struct.system__secondary_stack__mark_id> [#uses=1]
15	br i1 %tmp11, label %bb110, label %bb13
16
17bb13:		; preds = %bb
18	br label %bb
19
20bb110:		; preds = %bb
21	%mrv_gr124 = extractvalue %struct.system__secondary_stack__mark_id %tmp120, 1		; <i64> [#uses=0]
22	unreachable
23}
24
25declare %struct.system__secondary_stack__mark_id @system__secondary_stack__ss_mark()
26
27
28
29define fastcc void @findratio(double* nocapture %res1, double* nocapture %res2) nounwind ssp {
30entry:
31  br label %bb12
32
33bb6.us:
34  %tmp = icmp eq i32 undef, undef
35  %tmp1 = fsub double undef, undef
36  %tmp2 = fcmp ult double %tmp1, 0.000000e+00
37  br i1 %tmp, label %bb6.us, label %bb13
38
39
40bb12:
41  %tmp3 = fcmp ult double undef, 0.000000e+00
42  br label %bb13
43
44bb13:
45  %.lcssa31 = phi double [ undef, %bb12 ], [ %tmp1, %bb6.us ]
46  %.lcssa30 = phi i1 [ %tmp3, %bb12 ], [ %tmp2, %bb6.us ]
47  br i1 %.lcssa30, label %bb15, label %bb61
48
49bb15:
50  %tmp4 = fsub double -0.000000e+00, %.lcssa31
51  ret void
52
53
54bb61:
55  ret void
56}
57
58
59; PR5258
60define i32 @test(i1 %cond, i1 %cond2, i32 %a) {
61A:
62  br i1 %cond, label %F, label %A1
63F:
64  br label %A1
65
66A1:
67  %d = phi i1 [false, %A], [true, %F]
68  %e = add i32 %a, %a
69  br i1 %d, label %B, label %G
70
71G:
72  br i1 %cond2, label %B, label %D
73
74B:
75  %f = phi i32 [%e, %G], [%e, %A1]
76  %b = add i32 0, 0
77  switch i32 %a, label %C [
78    i32 7, label %D
79    i32 8, label %D
80    i32 9, label %D
81  ]
82
83C:
84  br label %D
85
86D:
87  %c = phi i32 [%e, %B], [%e, %B], [%e, %B], [%f, %C], [%e, %G]
88  ret i32 %c
89E:
90  ret i32 412
91}
92
93
94define i32 @test2() nounwind {
95entry:
96        br i1 true, label %decDivideOp.exit, label %bb7.i
97
98bb7.i:          ; preds = %bb7.i, %entry
99        br label %bb7.i
100
101decDivideOp.exit:               ; preds = %entry
102        ret i32 undef
103}
104
105
106; PR3298
107
108define i32 @test3(i32 %p_79, i32 %p_80) nounwind {
109entry:
110	br label %bb7
111
112bb1:		; preds = %bb2
113	br label %bb2
114
115bb2:		; preds = %bb7, %bb1
116	%l_82.0 = phi i8 [ 0, %bb1 ], [ %l_82.1, %bb7 ]		; <i8> [#uses=3]
117	br i1 true, label %bb3, label %bb1
118
119bb3:		; preds = %bb2
120	%0 = icmp eq i32 %p_80_addr.1, 0		; <i1> [#uses=1]
121	br i1 %0, label %bb7, label %bb6
122
123bb5:		; preds = %bb6
124	%1 = icmp eq i8 %l_82.0, 0		; <i1> [#uses=1]
125	br i1 %1, label %bb1.i, label %bb.i
126
127bb.i:		; preds = %bb5
128	br label %safe_div_func_char_s_s.exit
129
130bb1.i:		; preds = %bb5
131	br label %safe_div_func_char_s_s.exit
132
133safe_div_func_char_s_s.exit:		; preds = %bb1.i, %bb.i
134	br label %bb6
135
136bb6:		; preds = %safe_div_func_char_s_s.exit, %bb3
137	%p_80_addr.0 = phi i32 [ %p_80_addr.1, %bb3 ], [ 1, %safe_div_func_char_s_s.exit ]		; <i32> [#uses=2]
138	%2 = icmp eq i32 %p_80_addr.0, 0		; <i1> [#uses=1]
139	br i1 %2, label %bb7, label %bb5
140
141bb7:		; preds = %bb6, %bb3, %entry
142	%l_82.1 = phi i8 [ 1, %entry ], [ %l_82.0, %bb3 ], [ %l_82.0, %bb6 ]		; <i8> [#uses=2]
143	%p_80_addr.1 = phi i32 [ 0, %entry ], [ %p_80_addr.1, %bb3 ], [ %p_80_addr.0, %bb6 ]		; <i32> [#uses=4]
144	%3 = icmp eq i32 %p_80_addr.1, 0		; <i1> [#uses=1]
145	br i1 %3, label %bb8, label %bb2
146
147bb8:		; preds = %bb7
148	%4 = sext i8 %l_82.1 to i32		; <i32> [#uses=0]
149	ret i32 0
150}
151
152
153; PR3353
154
155define i32 @test4(i8 %X) {
156entry:
157        %Y = add i8 %X, 1
158        %Z = add i8 %Y, 1
159        br label %bb33.i
160
161bb33.i:         ; preds = %bb33.i, %bb32.i
162        switch i8 %Y, label %bb32.i [
163                i8 39, label %bb35.split.i
164                i8 13, label %bb33.i
165        ]
166
167bb35.split.i:
168        ret i32 5
169bb32.i:
170        ret i32 1
171}
172
173
174define fastcc void @test5(i1 %tmp, i32 %tmp1) nounwind ssp {
175entry:
176  br i1 %tmp, label %bb12, label %bb13
177
178
179bb12:
180  br label %bb13
181
182bb13:
183  %.lcssa31 = phi i32 [ undef, %bb12 ], [ %tmp1, %entry ]
184  %A = and i1 undef, undef
185  br i1 %A, label %bb15, label %bb61
186
187bb15:
188  ret void
189
190
191bb61:
192  ret void
193}
194
195
196; PR5640
197define fastcc void @test6(i1 %tmp, i1 %tmp1) nounwind ssp {
198entry:
199  br i1 %tmp, label %bb12, label %bb14
200
201bb12:
202  br label %bb14
203
204bb14:
205  %A = phi i1 [ %A, %bb13 ],  [ true, %bb12 ], [%tmp1, %entry]
206  br label %bb13
207
208bb13:
209  br i1 %A, label %bb14, label %bb61
210
211
212bb61:
213  ret void
214}
215
216
217; PR5698
218define void @test7(i32 %x) {
219entry:
220  br label %tailrecurse
221
222tailrecurse:
223  switch i32 %x, label %return [
224    i32 2, label %bb2
225    i32 3, label %bb
226  ]
227
228bb:
229  switch i32 %x, label %return [
230    i32 2, label %bb2
231    i32 3, label %tailrecurse
232  ]
233
234bb2:
235  ret void
236
237return:
238  ret void
239}
240
241; PR6119
242define i32 @test8(i32 %action) nounwind {
243entry:
244  switch i32 %action, label %lor.rhs [
245    i32 1, label %if.then
246    i32 0, label %lor.end
247  ]
248
249if.then:                                          ; preds = %for.cond, %lor.end, %entry
250  ret i32 undef
251
252lor.rhs:                                          ; preds = %entry
253  br label %lor.end
254
255lor.end:                                          ; preds = %lor.rhs, %entry
256  %cmp103 = xor i1 undef, undef                   ; <i1> [#uses=1]
257  br i1 %cmp103, label %for.cond, label %if.then
258
259for.cond:                                         ; preds = %for.body, %lor.end
260  br i1 undef, label %if.then, label %for.body
261
262for.body:                                         ; preds = %for.cond
263  br label %for.cond
264}
265
266; PR6119
267define i32 @test9(i32 %action) nounwind {
268entry:
269  switch i32 %action, label %lor.rhs [
270    i32 1, label %if.then
271    i32 0, label %lor.end
272  ]
273
274if.then:                                          ; preds = %for.cond, %lor.end, %entry
275  ret i32 undef
276
277lor.rhs:                                          ; preds = %entry
278  br label %lor.end
279
280lor.end:                                          ; preds = %lor.rhs, %entry
281  %0 = phi i1 [ undef, %lor.rhs ], [ true, %entry ] ; <i1> [#uses=1]
282  %cmp103 = xor i1 undef, %0                      ; <i1> [#uses=1]
283  br i1 %cmp103, label %for.cond, label %if.then
284
285for.cond:                                         ; preds = %for.body, %lor.end
286  br i1 undef, label %if.then, label %for.body
287
288for.body:                                         ; preds = %for.cond
289  br label %for.cond
290}
291
292; PR6119
293define i32 @test10(i32 %action, i32 %type) nounwind {
294entry:
295  %cmp2 = icmp eq i32 %type, 0                    ; <i1> [#uses=1]
296  switch i32 %action, label %lor.rhs [
297    i32 1, label %if.then
298    i32 0, label %lor.end
299  ]
300
301if.then:                                          ; preds = %for.cond, %lor.end, %entry
302  ret i32 undef
303
304lor.rhs:                                          ; preds = %entry
305  %cmp101 = icmp eq i32 %action, 2                ; <i1> [#uses=1]
306  br label %lor.end
307
308lor.end:                                          ; preds = %lor.rhs, %entry
309  %0 = phi i1 [ %cmp101, %lor.rhs ], [ true, %entry ] ; <i1> [#uses=1]
310  %cmp103 = xor i1 %cmp2, %0                      ; <i1> [#uses=1]
311  br i1 %cmp103, label %for.cond, label %if.then
312
313for.cond:                                         ; preds = %for.body, %lor.end
314  br i1 undef, label %if.then, label %for.body
315
316for.body:                                         ; preds = %for.cond
317  br label %for.cond
318}
319
320
321; PR6305
322define void @test11() nounwind {
323entry:
324  br label %A
325
326A:                                             ; preds = %entry
327  call void undef(i64 ptrtoint (i8* blockaddress(@test11, %A) to i64)) nounwind
328  unreachable
329}
330
331; PR6743
332define void @test12() nounwind ssp {
333entry:
334  br label %lbl_51
335
336lbl_51:                                           ; preds = %if.then, %entry
337  %tmp3 = phi i1 [ false, %if.then ], [ undef, %entry ] ; <i1> [#uses=2]
338  br i1 %tmp3, label %if.end12, label %if.then
339
340if.then:                                          ; preds = %lbl_51
341  br i1 %tmp3, label %lbl_51, label %if.end12
342
343if.end12:                                         ; preds = %if.then, %lbl_51
344  ret void
345}
346
347
348
349; PR7356
350define i32 @test13(i32* %P, i8* %Ptr) {
351entry:
352  indirectbr i8* %Ptr, [label %BrBlock, label %B2]
353
354B2:
355  store i32 4, i32 *%P
356  br label %BrBlock
357
358BrBlock:
359  %L = load i32, i32* %P
360  %C = icmp eq i32 %L, 42
361  br i1 %C, label %T, label %F
362
363T:
364  ret i32 123
365F:
366  ret i32 1422
367}
368
369
370; PR7498
371define void @test14() nounwind {
372entry:
373  %cmp33 = icmp slt i8 undef, 0                   ; <i1> [#uses=1]
374  %tobool = icmp eq i8 undef, 0                   ; <i1> [#uses=1]
375  br i1 %tobool, label %land.end69, label %land.rhs
376
377land.rhs:                                         ; preds = %entry
378  br label %land.end69
379
380land.end69:                                       ; preds = %land.rhs, %entry
381  %0 = phi i1 [ undef, %land.rhs ], [ true, %entry ] ; <i1> [#uses=1]
382  %cmp71 = or i1 true, %0                         ; <i1> [#uses=1]
383  %cmp73 = xor i1 %cmp33, %cmp71                  ; <i1> [#uses=1]
384  br i1 %cmp73, label %if.then, label %if.end
385
386if.then:                                          ; preds = %land.end69
387  ret void
388
389if.end:                                           ; preds = %land.end69
390  ret void
391}
392
393; PR7647
394define void @test15() nounwind {
395entry:
396  ret void
397
398if.then237:
399  br label %lbl_664
400
401lbl_596:                                          ; preds = %lbl_664, %for.end37
402  store volatile i64 undef, i64* undef, align 4
403  br label %for.cond111
404
405for.cond111:                                      ; preds = %safe_sub_func_int64_t_s_s.exit, %lbl_596
406  %storemerge = phi i8 [ undef, %cond.true.i100 ], [ 22, %lbl_596 ] ; <i8> [#uses=1]
407  %l_678.5 = phi i64 [ %l_678.3, %cond.true.i100 ], [ undef, %lbl_596 ] ; <i64> [#uses=2]
408  %cmp114 = icmp slt i8 %storemerge, -2           ; <i1> [#uses=1]
409  br i1 %cmp114, label %lbl_664, label %if.end949
410
411lbl_664:                                          ; preds = %for.end1058, %if.then237, %for.cond111
412  %l_678.3 = phi i64 [ %l_678.5, %for.cond111 ], [ %l_678.2, %for.cond1035 ], [ 5, %if.then237 ] ; <i64> [#uses=1]
413  %tobool118 = icmp eq i32 undef, 0               ; <i1> [#uses=1]
414  br i1 %tobool118, label %cond.true.i100, label %lbl_596
415
416cond.true.i100:                                   ; preds = %for.inc120
417  br label %for.cond111
418
419lbl_709:
420  br label %if.end949
421
422for.cond603:                                      ; preds = %for.body607, %if.end336
423  br i1 undef, label %for.cond603, label %if.end949
424
425if.end949:                                        ; preds = %for.cond603, %lbl_709, %for.cond111
426  %l_678.2 = phi i64 [ %l_678.5, %for.cond111 ], [ undef, %lbl_709 ], [ 5, %for.cond603 ] ; <i64> [#uses=1]
427  br label %for.body1016
428
429for.body1016:                                     ; preds = %for.cond1012
430  br label %for.body1016
431
432for.cond1035:                                     ; preds = %for.inc1055, %if.then1026
433  br i1 undef, label %for.cond1040, label %lbl_664
434
435for.cond1040:                                     ; preds = %for.body1044, %for.cond1035
436  ret void
437}
438
439; PR7755
440define void @test16(i1 %c, i1 %c2, i1 %c3, i1 %c4) nounwind ssp {
441entry:
442  %cmp = icmp sgt i32 undef, 1                    ; <i1> [#uses=1]
443  br i1 %c, label %land.end, label %land.rhs
444
445land.rhs:                                         ; preds = %entry
446  br i1 %c2, label %lor.lhs.false.i, label %land.end
447
448lor.lhs.false.i:                                  ; preds = %land.rhs
449  br i1 %c3, label %land.end, label %land.end
450
451land.end:
452  %0 = phi i1 [ true, %entry ], [ false, %land.rhs ], [false, %lor.lhs.false.i], [false, %lor.lhs.false.i] ; <i1> [#uses=1]
453  %cmp12 = and i1 %cmp, %0
454  %xor1 = xor i1 %cmp12, %c4
455  br i1 %xor1, label %if.then, label %if.end
456
457if.then:
458  ret void
459
460if.end:
461  ret void
462}
463
464define void @test17() {
465entry:
466  br i1 undef, label %bb269.us.us, label %bb269.us.us.us
467
468bb269.us.us.us:
469  %indvar = phi i64 [ %indvar.next, %bb287.us.us.us ], [ 0, %entry ]
470  %0 = icmp eq i16 undef, 0
471  br i1 %0, label %bb287.us.us.us, label %bb286.us.us.us
472
473bb287.us.us.us:
474  %indvar.next = add i64 %indvar, 1
475  %exitcond = icmp eq i64 %indvar.next, 4
476  br i1 %exitcond, label %bb288.bb289.loopexit_crit_edge, label %bb269.us.us.us
477
478bb286.us.us.us:
479  unreachable
480
481bb269.us.us:
482	unreachable
483
484bb288.bb289.loopexit_crit_edge:
485  unreachable
486}
487
488; PR 8247
489%struct.S1 = type { i8, i8 }
490@func_89.l_245 = internal constant %struct.S1 { i8 33, i8 6 }, align 1
491define void @func_89(i16 zeroext %p_90, %struct.S1* nocapture %p_91, i32* nocapture %p_92) nounwind ssp {
492entry:
493  store i32 0, i32* %p_92, align 4
494  br i1 false, label %lbl_260, label %if.else
495
496if.else:                                          ; preds = %entry
497  br label %for.cond
498
499for.cond:                                         ; preds = %lbl_260, %if.else
500  %l_245.0 = phi i16 [ %l_245.1, %lbl_260 ], [ 33, %if.else ]
501  %l_261.0 = phi i32 [ %and, %lbl_260 ], [ 255, %if.else ]
502  %tobool21 = icmp ult i16 %l_245.0, 256
503  br i1 %tobool21, label %if.end, label %lbl_260
504
505lbl_260:                                          ; preds = %for.cond, %entry
506  %l_245.1 = phi i16 [ 1569, %entry ], [ %l_245.0, %for.cond ]
507  %l_261.1 = phi i32 [ 255, %entry ], [ %l_261.0, %for.cond ]
508  %and = and i32 %l_261.1, 1
509  br label %for.cond
510
511if.end:                                           ; preds = %for.cond
512  ret void
513}
514
515define void @PR14233(i1 %cmp, i1 %cmp2, i1 %cmp3, i1 %cmp4) {
516entry:
517  br i1 %cmp, label %cond.true, label %cond.false
518
519cond.true:
520  br label %if.end
521
522cond.false:
523  br label %if.end
524
525if.end:
526  %A = phi i64 [ 0, %cond.true ], [ 1, %cond.false ]
527  br i1 %cmp2, label %bb, label %if.end2
528
529bb:
530  br label %if.end2
531
532if.end2:
533  %B = phi i64 [ ptrtoint (i8* ()* @PR14233.f1 to i64), %bb ], [ %A, %if.end ]
534  %cmp.ptr = icmp eq i64 %B, ptrtoint (i8* ()* @PR14233.f2 to i64)
535  br i1 %cmp.ptr, label %cond.true2, label %if.end3
536
537cond.true2:
538  br i1 %cmp3, label %bb2, label %ur
539
540bb2:
541  br i1 %cmp4, label %if.end4, label %if.end3
542
543if.end4:
544  unreachable
545
546if.end3:
547  %cmp.ptr2 = icmp eq i64 %B, ptrtoint (i8* ()* @PR14233.f2 to i64)
548  br i1 %cmp.ptr2, label %ur, label %if.then601
549
550if.then601:
551  %C = icmp eq i64 %B, 0
552  br i1 %C, label %bb3, label %bb4
553
554bb3:
555  unreachable
556
557bb4:
558  unreachable
559
560ur:
561  unreachable
562}
563
564declare i8* @PR14233.f1()
565
566declare i8* @PR14233.f2()
567