1; RUN: opt -loop-rotate -disable-output -verify-dom-info -verify-loop-info < %s 2; RUN: opt -loop-rotate -disable-output -verify-dom-info -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa < %s 3 4target 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" 5target triple = "x86_64-apple-darwin10.0.0" 6 7; PR8955 - Rotating an outer loop that has a condbr for a latch block. 8define void @test1() nounwind ssp { 9entry: 10 br label %lbl_283 11 12lbl_283: ; preds = %if.end, %entry 13 br i1 undef, label %if.else, label %if.then 14 15if.then: ; preds = %lbl_283 16 br i1 undef, label %if.end, label %for.condthread-pre-split 17 18for.condthread-pre-split: ; preds = %if.then 19 br label %for.cond 20 21for.cond: ; preds = %for.cond, %for.condthread-pre-split 22 br i1 undef, label %lbl_281, label %for.cond 23 24lbl_281: ; preds = %if.end, %for.cond 25 br label %if.end 26 27if.end: ; preds = %lbl_281, %if.then 28 br i1 undef, label %lbl_283, label %lbl_281 29 30if.else: ; preds = %lbl_283 31 ret void 32} 33 34 %struct.relation = type { [4 x i16], i32, [4 x i16], i32, i32 } 35 36define void @test2() { 37entry: 38 br i1 false, label %bb139, label %bb10.i44 39bb10.i44: ; preds = %entry 40 ret void 41bb127: ; preds = %bb139 42 br label %bb139 43bb139: ; preds = %bb127, %entry 44 br i1 false, label %bb127, label %bb142 45bb142: ; preds = %bb139 46 %r91.0.lcssa = phi %struct.relation* [ null, %bb139 ] ; <%struct.relation*> [#uses=0] 47 ret void 48} 49 50 51define void @test3() { 52entry: 53 br i1 false, label %bb139, label %cond_true 54cond_true: ; preds = %entry 55 ret void 56bb90: ; preds = %bb139 57 br i1 false, label %bb136, label %cond_next121 58cond_next121: ; preds = %bb90 59 br i1 false, label %bb136, label %bb127 60bb127: ; preds = %cond_next121 61 br label %bb136 62bb136: ; preds = %bb127, %cond_next121, %bb90 63 %changes.1 = phi i32 [ %changes.2, %bb90 ], [ %changes.2, %cond_next121 ], [ 1, %bb127 ] ; <i32> [#uses=1] 64 br label %bb139 65bb139: ; preds = %bb136, %entry 66 %changes.2 = phi i32 [ %changes.1, %bb136 ], [ 0, %entry ] ; <i32> [#uses=3] 67 br i1 false, label %bb90, label %bb142 68bb142: ; preds = %bb139 69 %changes.2.lcssa = phi i32 [ %changes.2, %bb139 ] ; <i32> [#uses=0] 70 ret void 71} 72 73define void @test4() { 74entry: 75 br i1 false, label %cond_false485, label %bb405 76bb405: ; preds = %entry 77 ret void 78cond_false485: ; preds = %entry 79 br label %bb830 80bb511: ; preds = %bb830 81 br i1 false, label %bb816, label %bb830 82cond_next667: ; preds = %bb816 83 br i1 false, label %cond_next695, label %bb680 84bb676: ; preds = %bb680 85 br label %bb680 86bb680: ; preds = %bb676, %cond_next667 87 %iftmp.68.0 = zext i1 false to i8 ; <i8> [#uses=1] 88 br i1 false, label %bb676, label %cond_next695 89cond_next695: ; preds = %bb680, %cond_next667 90 %iftmp.68.2 = phi i8 [ %iftmp.68.0, %bb680 ], [ undef, %cond_next667 ] ; <i8> [#uses=0] 91 ret void 92bb816: ; preds = %bb816, %bb511 93 br i1 false, label %cond_next667, label %bb816 94bb830: ; preds = %bb511, %cond_false485 95 br i1 false, label %bb511, label %bb835 96bb835: ; preds = %bb830 97 ret void 98} 99 100 %struct.NSArray = type { %struct.NSObject } 101 %struct.NSObject = type { %struct.objc_class* } 102 %struct.NSRange = type { i64, i64 } 103 %struct._message_ref_t = type { %struct.NSObject* (%struct.NSObject*, %struct._message_ref_t*, ...)*, %struct.objc_selector* } 104 %struct.objc_class = type opaque 105 %struct.objc_selector = type opaque 106@"\01L_OBJC_MESSAGE_REF_26" = external global %struct._message_ref_t ; <%struct._message_ref_t*> [#uses=1] 107 108define %struct.NSArray* @test5(%struct.NSArray* %self, %struct._message_ref_t* %_cmd) { 109entry: 110 br label %bb116 111 112bb116: ; preds = %bb131, %entry 113 %tmp123 = call %struct.NSRange null( %struct.NSObject* null, %struct._message_ref_t* @"\01L_OBJC_MESSAGE_REF_26", %struct.NSArray* null ) ; <%struct.NSRange> [#uses=1] 114 br i1 false, label %bb141, label %bb131 115 116bb131: ; preds = %bb116 117 %mrv_gr125 = extractvalue %struct.NSRange %tmp123, 1 ; <i64> [#uses=0] 118 br label %bb116 119 120bb141: ; preds = %bb116 121 ret %struct.NSArray* null 122} 123 124define void @test6(i8* %msg) { 125entry: 126 br label %bb15 127bb6: ; preds = %bb15 128 %gep.upgrd.1 = zext i32 %offset.1 to i64 ; <i64> [#uses=1] 129 %tmp11 = getelementptr i8, i8* %msg, i64 %gep.upgrd.1 ; <i8*> [#uses=0] 130 br label %bb15 131bb15: ; preds = %bb6, %entry 132 %offset.1 = add i32 0, 1 ; <i32> [#uses=2] 133 br i1 false, label %bb6, label %bb17 134bb17: ; preds = %bb15 135 %offset.1.lcssa = phi i32 [ %offset.1, %bb15 ] ; <i32> [#uses=0] 136 %payload_type.1.lcssa = phi i32 [ 0, %bb15 ] ; <i32> [#uses=0] 137 ret void 138} 139 140 141 142 143; PR9523 - Non-canonical loop. 144define void @test7(i8* %P) nounwind { 145entry: 146 indirectbr i8* %P, [label %"3", label %"5"] 147 148"3": ; preds = %"4", %entry 149 br i1 undef, label %"5", label %"4" 150 151"4": ; preds = %"3" 152 br label %"3" 153 154"5": ; preds = %"3", %entry 155 ret void 156} 157 158; PR21968 159define void @test8(i1 %C, i8* %P) #0 { 160entry: 161 br label %for.cond 162 163for.cond: ; preds = %for.inc, %entry 164 br i1 %C, label %l_bad, label %for.body 165 166for.body: ; preds = %for.cond 167 indirectbr i8* %P, [label %for.inc, label %l_bad] 168 169for.inc: ; preds = %for.body 170 br label %for.cond 171 172l_bad: ; preds = %for.body, %for.cond 173 ret void 174} 175