1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 2>&1 | FileCheck %s 3 4declare i32 @blam(ptr, i32) 5 6define i32 @wibble(ptr %arg, ptr %arg1) { 7; CHECK-LABEL: @wibble( 8; CHECK-NEXT: bb: 9; CHECK-NEXT: br label [[BB2:%.*]] 10; CHECK: bb2: 11; CHECK-NEXT: [[BORG:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[BORG]], [[BB2]] ] 12; CHECK-NEXT: [[BORG3:%.*]] = phi i32 [ 8, [[BB]] ], [ [[SPEC_SELECT:%.*]], [[BB2]] ] 13; CHECK-NEXT: [[BORG4:%.*]] = tail call i32 @blam(ptr [[ARG:%.*]], i32 [[BORG]]) 14; CHECK-NEXT: [[BORG5:%.*]] = icmp eq i32 [[BORG4]], 0 15; CHECK-NEXT: [[SPEC_SELECT]] = select i1 [[BORG5]], i32 [[BORG3]], i32 [[BORG4]] 16; CHECK-NEXT: [[BORG11:%.*]] = icmp ult i32 [[BORG]], 2 17; CHECK-NEXT: br i1 [[BORG11]], label [[BB2]], label [[BB12:%.*]] 18; CHECK: bb12: 19; CHECK-NEXT: ret i32 1 20; 21bb: 22 br label %bb2 23 24bb2: ; preds = %bb8, %bb 25 %borg = phi i32 [ 0, %bb ], [ %borg9, %bb8 ] 26 %borg3 = phi i32 [ 8, %bb ], [ %borg10, %bb8 ] 27 %borg4 = tail call i32 @blam(ptr %arg, i32 %borg) 28 %borg5 = icmp eq i32 %borg4, 0 29 br i1 %borg5, label %bb8, label %bb6 30 31bb6: ; preds = %bb2 32 %borg7 = load ptr, ptr %arg1, align 4 33 br label %bb8 34 35bb8: ; preds = %bb6, %bb2 36 %borg9 = phi i32 [ %borg, %bb6 ], [ %borg, %bb2 ] 37 %borg10 = phi i32 [ %borg4, %bb6 ], [ %borg3, %bb2 ] 38 %borg11 = icmp ult i32 %borg9, 2 39 br i1 %borg11, label %bb2, label %bb12 40 41bb12: ; preds = %bb8 42 ret i32 1 43} 44