1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes='require<loops>,jump-threading,verify<loops>' < %s | FileCheck %s 3 4%"type1" = type { i8 } 5%"type2" = type opaque 6 7define dso_local ptr @func2(ptr %this, ptr) { 8; CHECK-LABEL: @func2( 9; CHECK-NEXT: entry: 10; CHECK-NEXT: br label [[WHILE_COND:%.*]] 11; CHECK: select.unfold: 12; CHECK-NEXT: br label [[WHILE_COND]] 13; CHECK: while.cond: 14; CHECK-NEXT: [[MONTH_0:%.*]] = phi i32 [ undef, [[ENTRY:%.*]] ], [ [[CALL2:%.*]], [[FUNC1_EXIT:%.*]] ], [ [[ADD:%.*]], [[SELECT_UNFOLD:%.*]] ] 15; CHECK-NEXT: switch i32 [[MONTH_0]], label [[IF_END_I:%.*]] [ 16; CHECK-NEXT: i32 4, label [[FUNC1_EXIT]] 17; CHECK-NEXT: i32 1, label [[FUNC1_EXIT]] 18; CHECK-NEXT: ] 19; CHECK: if.end.i: 20; CHECK-NEXT: br label [[FUNC1_EXIT]] 21; CHECK: func1.exit: 22; CHECK-NEXT: [[RETVAL_0_I:%.*]] = phi i32 [ 9, [[IF_END_I]] ], [ 0, [[WHILE_COND]] ], [ 0, [[WHILE_COND]] ] 23; CHECK-NEXT: [[CALL2]] = tail call signext i32 @func3(i32 signext [[RETVAL_0_I]], i32 signext 1, i32 signext 3) 24; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL2]], 1 25; CHECK-NEXT: [[ADD]] = add nsw i32 [[CALL2]], 2 26; CHECK-NEXT: br i1 [[CMP]], label [[SELECT_UNFOLD]], label [[WHILE_COND]] 27; 28entry: 29 br label %while.cond 30 31while.cond: ; preds = %func1.exit, %entry 32 %month.0 = phi i32 [ undef, %entry ], [ %month.0.be, %func1.exit ] 33 switch i32 %month.0, label %if.end.i [ 34 i32 4, label %func1.exit 35 i32 1, label %func1.exit 36 ] 37 38if.end.i: ; preds = %while.cond 39 br label %func1.exit 40 41func1.exit: ; preds = %if.end.i, %while.cond, %while.cond 42 %retval.0.i = phi i32 [ 9, %if.end.i ], [ 0, %while.cond ], [ 0, %while.cond ] 43 %call2 = tail call signext i32 @func3(i32 signext %retval.0.i, i32 signext 1, i32 signext 3) 44 %cmp = icmp slt i32 %call2, 1 45 %add = add nsw i32 %call2, 2 46 %month.0.be = select i1 %cmp, i32 %add, i32 %call2 47 br label %while.cond 48} 49 50declare i32 @func3(i32, i32, i32) 51 52