+; REQUIRES: asserts
; RUN: opt -loop-unswitch -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s
-; RUN: opt -S -loop-unswitch -verify-loop-info -verify-dom-info %s | FileCheck %s
+; RUN: opt -S -loop-unswitch -verify-loop-info -verify-dom-info < %s | FileCheck %s
; STATS: 1 loop-simplify - Number of pre-header or exit blocks inserted
; STATS: 2 loop-unswitch - Number of switches unswitched
; CHECK-NEXT: i32 1, label %inc.us
; CHECK: inc.us: ; preds = %loop_begin.us
-; CHECK-NEXT: call void @incf() noreturn nounwind
+; CHECK-NEXT: call void @incf() [[NOR_NUW:#[0-9]+]]
; CHECK-NEXT: br label %loop_begin.backedge.us
; CHECK: .split: ; preds = %..split_crit_edge
; CHECK: loop_begin.us1: ; preds = %loop_begin.backedge.us5, %.split.split.us
; CHECK-NEXT: %var_val.us2 = load i32* %var
; CHECK-NEXT: switch i32 2, label %default.us-lcssa.us-lcssa.us [
-; CHECK-NEXT: i32 1, label %inc.us3
-; CHECK-NEXT: i32 2, label %dec.us4
+; CHECK-NEXT: i32 1, label %inc.us4
+; CHECK-NEXT: i32 2, label %dec.us3
; CHECK-NEXT: ]
-; CHECK: dec.us4: ; preds = %loop_begin.us1
-; CHECK-NEXT: call void @decf() noreturn nounwind
+; CHECK: dec.us3: ; preds = %loop_begin.us1
+; CHECK-NEXT: call void @decf() [[NOR_NUW]]
; CHECK-NEXT: br label %loop_begin.backedge.us5
; CHECK: .split.split: ; preds = %.split..split.split_crit_edge
dec:
call void @decf() noreturn nounwind
br label %loop_begin
-default:
+default:
br label %loop_exit
loop_exit:
ret i32 0
declare void @incf() noreturn
declare void @decf() noreturn
+
+; CHECK: attributes #0 = { noreturn }
+; CHECK: attributes [[NOR_NUW]] = { noreturn nounwind }