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1; This test shows SCCP "proving" that the loop (from bb6 to 14) loops infinitely2; this is in fact NOT the case, so the return should still be alive in the code3; after sccp and CFG simplification have been performed.4;5; RUN: opt < %s -passes=sccp,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | \6; RUN: grep ret7 8define void @old_main() {9bb3:10 br label %bb611bb6: ; preds = %bb14, %bb312 %reg403 = phi i32 [ %reg155, %bb14 ], [ 0, %bb3 ] ; <i32> [#uses=1]13 %reg155 = add i32 %reg403, 1 ; <i32> [#uses=2]14 br label %bb1115bb11: ; preds = %bb11, %bb616 %reg407 = phi i32 [ %reg408, %bb11 ], [ 0, %bb6 ] ; <i32> [#uses=2]17 %reg408 = add i32 %reg407, 1 ; <i32> [#uses=1]18 %cond550 = icmp sle i32 %reg407, 1 ; <i1> [#uses=1]19 br i1 %cond550, label %bb11, label %bb1220bb12: ; preds = %bb1121 br label %bb1322bb13: ; preds = %bb13, %bb1223 %reg409 = phi i32 [ %reg410, %bb13 ], [ 0, %bb12 ] ; <i32> [#uses=1]24 %reg410 = add i32 %reg409, 1 ; <i32> [#uses=2]25 %cond552 = icmp sle i32 %reg410, 2 ; <i1> [#uses=1]26 br i1 %cond552, label %bb13, label %bb1427bb14: ; preds = %bb1328 %cond553 = icmp sle i32 %reg155, 31 ; <i1> [#uses=1]29 br i1 %cond553, label %bb6, label %bb1530bb15: ; preds = %bb1431 ret void32}33 34