; RUN: opt -loop-rotate %s -disable-output -verify-dom-info -verify-loop-info
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"
target triple = "x86_64-apple-darwin10.0.0"
; PR8955 - Rotating an outer loop that has a condbr for a latch block.
define void @test1() nounwind ssp {
entry:
br label %lbl_283
lbl_283: ; preds = %if.end, %entry
br i1 undef, label %if.else, label %if.then
if.then: ; preds = %lbl_283
br i1 undef, label %if.end, label %for.condthread-pre-split
for.condthread-pre-split: ; preds = %if.then
br label %for.cond
for.cond: ; preds = %for.cond, %for.condthread-pre-split
br i1 undef, label %lbl_281, label %for.cond
lbl_281: ; preds = %if.end, %for.cond
br label %if.end
if.end: ; preds = %lbl_281, %if.then
br i1 undef, label %lbl_283, label %lbl_281
if.else: ; preds = %lbl_283
ret void
}
%struct.relation = type { [4 x i16], i32, [4 x i16], i32, i32 }
define void @test2() {
entry:
br i1 false, label %bb139, label %bb10.i44
bb10.i44: ; preds = %entry
ret void
bb127: ; preds = %bb139
br label %bb139
bb139: ; preds = %bb127, %entry
br i1 false, label %bb127, label %bb142
bb142: ; preds = %bb139
%r91.0.lcssa = phi %struct.relation* [ null, %bb139 ] ; <%struct.relation*> [#uses=0]
ret void
}
define void @test3() {
entry:
br i1 false, label %bb139, label %cond_true
cond_true: ; preds = %entry
ret void
bb90: ; preds = %bb139
br i1 false, label %bb136, label %cond_next121
cond_next121: ; preds = %bb90
br i1 false, label %bb136, label %bb127
bb127: ; preds = %cond_next121
br label %bb136
bb136: ; preds = %bb127, %cond_next121, %bb90
%changes.1 = phi i32 [ %changes.2, %bb90 ], [ %changes.2, %cond_next121 ], [ 1, %bb127 ] ; <i32> [#uses=1]
br label %bb139
bb139: ; preds = %bb136, %entry
%changes.2 = phi i32 [ %changes.1, %bb136 ], [ 0, %entry ] ; <i32> [#uses=3]
br i1 false, label %bb90, label %bb142
bb142: ; preds = %bb139
%changes.2.lcssa = phi i32 [ %changes.2, %bb139 ] ; <i32> [#uses=0]
ret void
}
define void @test4() {
entry:
br i1 false, label %cond_false485, label %bb405
bb405: ; preds = %entry
ret void
cond_false485: ; preds = %entry
br label %bb830
bb511: ; preds = %bb830
br i1 false, label %bb816, label %bb830
cond_next667: ; preds = %bb816
br i1 false, label %cond_next695, label %bb680
bb676: ; preds = %bb680
br label %bb680
bb680: ; preds = %bb676, %cond_next667
%iftmp.68.0 = zext i1 false to i8 ; <i8> [#uses=1]
br i1 false, label %bb676, label %cond_next695
cond_next695: ; preds = %bb680, %cond_next667
%iftmp.68.2 = phi i8 [ %iftmp.68.0, %bb680 ], [ undef, %cond_next667 ] ; <i8> [#uses=0]
ret void
bb816: ; preds = %bb816, %bb511
br i1 false, label %cond_next667, label %bb816
bb830: ; preds = %bb511, %cond_false485
br i1 false, label %bb511, label %bb835
bb835: ; preds = %bb830
ret void
}
%struct.NSArray = type { %struct.NSObject }
%struct.NSObject = type { %struct.objc_class* }
%struct.NSRange = type { i64, i64 }
%struct._message_ref_t = type { %struct.NSObject* (%struct.NSObject*, %struct._message_ref_t*, ...)*, %struct.objc_selector* }
%struct.objc_class = type opaque
%struct.objc_selector = type opaque
@"\01L_OBJC_MESSAGE_REF_26" = external global %struct._message_ref_t ; <%struct._message_ref_t*> [#uses=1]
define %struct.NSArray* @test5(%struct.NSArray* %self, %struct._message_ref_t* %_cmd) {
entry:
br label %bb116
bb116: ; preds = %bb131, %entry
%tmp123 = call %struct.NSRange null( %struct.NSObject* null, %struct._message_ref_t* @"\01L_OBJC_MESSAGE_REF_26", %struct.NSArray* null ) ; <%struct.NSRange> [#uses=1]
br i1 false, label %bb141, label %bb131
bb131: ; preds = %bb116
%mrv_gr125 = extractvalue %struct.NSRange %tmp123, 1 ; <i64> [#uses=0]
br label %bb116
bb141: ; preds = %bb116
ret %struct.NSArray* null
}
define void @test6(i8* %msg) {
entry:
br label %bb15
bb6: ; preds = %bb15
%gep.upgrd.1 = zext i32 %offset.1 to i64 ; <i64> [#uses=1]
%tmp11 = getelementptr i8* %msg, i64 %gep.upgrd.1 ; <i8*> [#uses=0]
br label %bb15
bb15: ; preds = %bb6, %entry
%offset.1 = add i32 0, 1 ; <i32> [#uses=2]
br i1 false, label %bb6, label %bb17
bb17: ; preds = %bb15
%offset.1.lcssa = phi i32 [ %offset.1, %bb15 ] ; <i32> [#uses=0]
%payload_type.1.lcssa = phi i32 [ 0, %bb15 ] ; <i32> [#uses=0]
ret void
}
; PR9523 - Non-canonical loop.
define void @test7(i8* %P) nounwind {
entry:
indirectbr i8* %P, [label %"3", label %"5"]
"3": ; preds = %"4", %entry
br i1 undef, label %"5", label %"4"
"4": ; preds = %"3"
br label %"3"
"5": ; preds = %"3", %entry
ret void
}