1 ; RUN: opt -passes=loop-rotate -disable-output -verify-dom-info -verify-loop-info -verify-memoryssa < %s
3 target 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-n8:16:32:64"
4 target triple = "x86_64-apple-darwin10.0.0"
6 ; PR8955 - Rotating an outer loop that has a condbr for a latch block.
7 define void @test1(i1 %arg) nounwind ssp {
11 lbl_283: ; preds = %if.end, %entry
12 br i1 %arg, label %if.else, label %if.then
14 if.then: ; preds = %lbl_283
15 br i1 %arg, label %if.end, label %for.condthread-pre-split
17 for.condthread-pre-split: ; preds = %if.then
20 for.cond: ; preds = %for.cond, %for.condthread-pre-split
21 br i1 %arg, label %lbl_281, label %for.cond
23 lbl_281: ; preds = %if.end, %for.cond
26 if.end: ; preds = %lbl_281, %if.then
27 br i1 %arg, label %lbl_283, label %lbl_281
29 if.else: ; preds = %lbl_283
33 %struct.relation = type { [4 x i16], i32, [4 x i16], i32, i32 }
35 define void @test2() {
37 br i1 false, label %bb139, label %bb10.i44
38 bb10.i44: ; preds = %entry
40 bb127: ; preds = %bb139
42 bb139: ; preds = %bb127, %entry
43 br i1 false, label %bb127, label %bb142
44 bb142: ; preds = %bb139
45 %r91.0.lcssa = phi ptr [ null, %bb139 ] ; <ptr> [#uses=0]
50 define void @test3() {
52 br i1 false, label %bb139, label %cond_true
53 cond_true: ; preds = %entry
55 bb90: ; preds = %bb139
56 br i1 false, label %bb136, label %cond_next121
57 cond_next121: ; preds = %bb90
58 br i1 false, label %bb136, label %bb127
59 bb127: ; preds = %cond_next121
61 bb136: ; preds = %bb127, %cond_next121, %bb90
62 %changes.1 = phi i32 [ %changes.2, %bb90 ], [ %changes.2, %cond_next121 ], [ 1, %bb127 ] ; <i32> [#uses=1]
64 bb139: ; preds = %bb136, %entry
65 %changes.2 = phi i32 [ %changes.1, %bb136 ], [ 0, %entry ] ; <i32> [#uses=3]
66 br i1 false, label %bb90, label %bb142
67 bb142: ; preds = %bb139
68 %changes.2.lcssa = phi i32 [ %changes.2, %bb139 ] ; <i32> [#uses=0]
72 define void @test4() {
74 br i1 false, label %cond_false485, label %bb405
75 bb405: ; preds = %entry
77 cond_false485: ; preds = %entry
79 bb511: ; preds = %bb830
80 br i1 false, label %bb816, label %bb830
81 cond_next667: ; preds = %bb816
82 br i1 false, label %cond_next695, label %bb680
83 bb676: ; preds = %bb680
85 bb680: ; preds = %bb676, %cond_next667
86 %iftmp.68.0 = zext i1 false to i8 ; <i8> [#uses=1]
87 br i1 false, label %bb676, label %cond_next695
88 cond_next695: ; preds = %bb680, %cond_next667
89 %iftmp.68.2 = phi i8 [ %iftmp.68.0, %bb680 ], [ undef, %cond_next667 ] ; <i8> [#uses=0]
91 bb816: ; preds = %bb816, %bb511
92 br i1 false, label %cond_next667, label %bb816
93 bb830: ; preds = %bb511, %cond_false485
94 br i1 false, label %bb511, label %bb835
95 bb835: ; preds = %bb830
99 %struct.NSArray = type { %struct.NSObject }
100 %struct.NSObject = type { ptr }
101 %struct.NSRange = type { i64, i64 }
102 %struct._message_ref_t = type { ptr, ptr }
103 %struct.objc_class = type opaque
104 %struct.objc_selector = type opaque
105 @"\01L_OBJC_MESSAGE_REF_26" = external global %struct._message_ref_t ; <ptr> [#uses=1]
107 define ptr @test5(ptr %self, ptr %_cmd) {
111 bb116: ; preds = %bb131, %entry
112 %tmp123 = call %struct.NSRange null( ptr null, ptr @"\01L_OBJC_MESSAGE_REF_26", ptr null ) ; <%struct.NSRange> [#uses=1]
113 br i1 false, label %bb141, label %bb131
115 bb131: ; preds = %bb116
116 %mrv_gr125 = extractvalue %struct.NSRange %tmp123, 1 ; <i64> [#uses=0]
119 bb141: ; preds = %bb116
123 define void @test6(ptr %msg) {
127 %gep.upgrd.1 = zext i32 %offset.1 to i64 ; <i64> [#uses=1]
128 %tmp11 = getelementptr i8, ptr %msg, i64 %gep.upgrd.1 ; <ptr> [#uses=0]
130 bb15: ; preds = %bb6, %entry
131 %offset.1 = add i32 0, 1 ; <i32> [#uses=2]
132 br i1 false, label %bb6, label %bb17
133 bb17: ; preds = %bb15
134 %offset.1.lcssa = phi i32 [ %offset.1, %bb15 ] ; <i32> [#uses=0]
135 %payload_type.1.lcssa = phi i32 [ 0, %bb15 ] ; <i32> [#uses=0]
142 ; PR9523 - Non-canonical loop.
143 define void @test7(ptr %P, i1 %arg) nounwind {
145 indirectbr ptr %P, [label %"3", label %"5"]
147 "3": ; preds = %"4", %entry
148 br i1 %arg, label %"5", label %"4"
153 "5": ; preds = %"3", %entry
158 define void @test8(i1 %C, ptr %P) #0 {
162 for.cond: ; preds = %for.inc, %entry
163 br i1 %C, label %l_bad, label %for.body
165 for.body: ; preds = %for.cond
166 indirectbr ptr %P, [label %for.inc, label %l_bad]
168 for.inc: ; preds = %for.body
171 l_bad: ; preds = %for.body, %for.cond