; When constant propogating terminator instructions, the basic block iterator ; was not updated to refer to the final position of the new terminator. This ; can be bad, f.e. because constproping a terminator can lead to the ; destruction of PHI nodes, which invalidates the iterator! ; ; Fixed by adding new arguments to ConstantFoldTerminator ; ; RUN: opt < %s -constprop define void @build_tree(i32 %ml) { ; <label>:0 br label %bb2 bb2: ; preds = %bb2, %0 %reg137 = phi i32 [ %reg140, %bb2 ], [ 12, %0 ] ; <i32> [#uses=1] %reg138 = phi i32 [ %reg139, %bb2 ], [ 0, %0 ] ; <i32> [#uses=1] %reg139 = add i32 %reg138, 1 ; <i32> [#uses=1] %reg140 = add i32 %reg137, -1 ; <i32> [#uses=1] br i1 false, label %bb2, label %bb3 bb3: ; preds = %bb2 ret void }