1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -newgvn %s -S | FileCheck %s 3 4@b = external global i32, align 4 5@a = external global i32, align 4 6define void @tinkywinky() { 7; CHECK-LABEL: @tinkywinky( 8; CHECK-NEXT: entry: 9; CHECK-NEXT: br label [[L1:%.*]] 10; CHECK: l1.loopexit: 11; CHECK-NEXT: br label [[L1]] 12; CHECK: l1: 13; CHECK-NEXT: [[F_0:%.*]] = phi i32* [ @b, [[ENTRY:%.*]] ], [ @a, [[L1_LOOPEXIT:%.*]] ] 14; CHECK-NEXT: br label [[FOR_COND:%.*]] 15; CHECK: for.cond.loopexit: 16; CHECK-NEXT: store i8 undef, i8* null 17; CHECK-NEXT: br label [[FOR_COND]] 18; CHECK: for.cond: 19; CHECK-NEXT: br i1 undef, label [[FOR_END14:%.*]], label [[FOR_COND1_PREHEADER:%.*]] 20; CHECK: for.cond1.preheader: 21; CHECK-NEXT: br label [[FOR_BODY3:%.*]] 22; CHECK: for.cond1: 23; CHECK-NEXT: br label [[L2:%.*]] 24; CHECK: for.body3: 25; CHECK-NEXT: br i1 undef, label [[FOR_COND1:%.*]], label [[L1_LOOPEXIT]] 26; CHECK: l2: 27; CHECK-NEXT: [[G_4:%.*]] = phi i32* [ @b, [[FOR_END14]] ], [ @a, [[FOR_COND1]] ] 28; CHECK-NEXT: [[F_2:%.*]] = phi i32* [ [[F_0]], [[FOR_END14]] ], [ @a, [[FOR_COND1]] ] 29; CHECK-NEXT: br label [[FOR_INC:%.*]] 30; CHECK: for.inc: 31; CHECK-NEXT: br i1 false, label [[FOR_COND_LOOPEXIT:%.*]], label [[FOR_INC]] 32; CHECK: for.end14: 33; CHECK-NEXT: br label [[L2]] 34; 35entry: 36 br label %l1 37l1.loopexit: 38 %g.223.lcssa = phi i32* [ @b, %for.body3 ] 39 br label %l1 40l1: 41 %g.0 = phi i32* [ undef, %entry ], [ %g.223.lcssa, %l1.loopexit ] 42 %f.0 = phi i32* [ @b, %entry ], [ @a, %l1.loopexit ] 43 br label %for.cond 44for.cond.loopexit: 45 br label %for.cond 46for.cond: 47 %g.1 = phi i32* [ %g.0, %l1 ], [ %g.4, %for.cond.loopexit ] 48 %f.1 = phi i32* [ %f.0, %l1 ], [ %f.2, %for.cond.loopexit ] 49 br i1 undef, label %for.end14, label %for.cond1.preheader 50for.cond1.preheader: 51 br label %for.body3 52for.cond1: 53 br label %l2 54for.body3: 55 br i1 undef, label %for.cond1, label %l1.loopexit 56l2: 57 %g.4 = phi i32* [ %g.1, %for.end14 ], [ @a, %for.cond1 ] 58 %f.2 = phi i32* [ %f.1, %for.end14 ], [ @a, %for.cond1 ] 59 br label %for.inc 60for.inc: 61 br i1 false, label %for.cond.loopexit, label %for.inc 62for.end14: 63 br label %l2 64} 65