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1; RUN: llc -verify-machineinstrs < %s -mtriple=ppc64--2; PR15963 4 %struct._obstack_chunk = type { ptr }5 %struct.obstack = type { ptr, ptr, ptr, i8 }6 7define i32 @_obstack_newchunk(ptr %h, i32 %length) {8entry:9 br i1 false, label %cond_false, label %cond_true10 11cond_true: ; preds = %entry12 br i1 false, label %cond_true28, label %cond_next3013 14cond_false: ; preds = %entry15 %tmp22 = tail call ptr null( i64 undef ) ; <ptr> [#uses=2]16 br i1 false, label %cond_true28, label %cond_next3017 18cond_true28: ; preds = %cond_false, %cond_true19 %iftmp.0.043.0 = phi ptr [ null, %cond_true ], [ %tmp22, %cond_false ] ; <ptr> [#uses=1]20 tail call void null( )21 br label %cond_next3022 23cond_next30: ; preds = %cond_true28, %cond_false, %cond_true24 %iftmp.0.043.1 = phi ptr [ %iftmp.0.043.0, %cond_true28 ], [ null, %cond_true ], [ %tmp22, %cond_false ] ; <ptr> [#uses=1]25 %tmp41 = getelementptr %struct._obstack_chunk, ptr %iftmp.0.043.1, i32 0, i32 0 ; <ptr> [#uses=1]26 store ptr null, ptr %tmp41, align 827 ret i32 undef28}29