1*9880d681SAndroid Build Coastguard Worker; This test shows SCCP "proving" that the loop (from bb6 to 14) loops infinitely 2*9880d681SAndroid Build Coastguard Worker; this is in fact NOT the case, so the return should still be alive in the code 3*9880d681SAndroid Build Coastguard Worker; after sccp and CFG simplification have been performed. 4*9880d681SAndroid Build Coastguard Worker; 5*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -sccp -simplifycfg -S | \ 6*9880d681SAndroid Build Coastguard Worker; RUN: grep ret 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdefine void @old_main() { 9*9880d681SAndroid Build Coastguard Workerbb3: 10*9880d681SAndroid Build Coastguard Worker br label %bb6 11*9880d681SAndroid Build Coastguard Workerbb6: ; preds = %bb14, %bb3 12*9880d681SAndroid Build Coastguard Worker %reg403 = phi i32 [ %reg155, %bb14 ], [ 0, %bb3 ] ; <i32> [#uses=1] 13*9880d681SAndroid Build Coastguard Worker %reg155 = add i32 %reg403, 1 ; <i32> [#uses=2] 14*9880d681SAndroid Build Coastguard Worker br label %bb11 15*9880d681SAndroid Build Coastguard Workerbb11: ; preds = %bb11, %bb6 16*9880d681SAndroid Build Coastguard Worker %reg407 = phi i32 [ %reg408, %bb11 ], [ 0, %bb6 ] ; <i32> [#uses=2] 17*9880d681SAndroid Build Coastguard Worker %reg408 = add i32 %reg407, 1 ; <i32> [#uses=1] 18*9880d681SAndroid Build Coastguard Worker %cond550 = icmp sle i32 %reg407, 1 ; <i1> [#uses=1] 19*9880d681SAndroid Build Coastguard Worker br i1 %cond550, label %bb11, label %bb12 20*9880d681SAndroid Build Coastguard Workerbb12: ; preds = %bb11 21*9880d681SAndroid Build Coastguard Worker br label %bb13 22*9880d681SAndroid Build Coastguard Workerbb13: ; preds = %bb13, %bb12 23*9880d681SAndroid Build Coastguard Worker %reg409 = phi i32 [ %reg410, %bb13 ], [ 0, %bb12 ] ; <i32> [#uses=1] 24*9880d681SAndroid Build Coastguard Worker %reg410 = add i32 %reg409, 1 ; <i32> [#uses=2] 25*9880d681SAndroid Build Coastguard Worker %cond552 = icmp sle i32 %reg410, 2 ; <i1> [#uses=1] 26*9880d681SAndroid Build Coastguard Worker br i1 %cond552, label %bb13, label %bb14 27*9880d681SAndroid Build Coastguard Workerbb14: ; preds = %bb13 28*9880d681SAndroid Build Coastguard Worker %cond553 = icmp sle i32 %reg155, 31 ; <i1> [#uses=1] 29*9880d681SAndroid Build Coastguard Worker br i1 %cond553, label %bb6, label %bb15 30*9880d681SAndroid Build Coastguard Workerbb15: ; preds = %bb14 31*9880d681SAndroid Build Coastguard Worker ret void 32*9880d681SAndroid Build Coastguard Worker} 33*9880d681SAndroid Build Coastguard Worker 34