1 ; THis testcase caused an assertion failure because a PHI node did not have 2 ; entries for it's postdominator. But I think this can only happen when the 3 ; PHI node is dead, so we just avoid patching up dead PHI nodes. 4 5 ; RUN: opt < %s -adce 6 7 target datalayout = "e-p:32:32" 8 9 define void @dead_test8() { 10 entry: 11 br label %loopentry 12 13 loopentry: ; preds = %endif, %entry 14 %k.1 = phi i32 [ %k.0, %endif ], [ 0, %entry ] ; <i32> [#uses=1] 15 br i1 false, label %no_exit, label %return 16 17 no_exit: ; preds = %loopentry 18 br i1 false, label %then, label %else 19 20 then: ; preds = %no_exit 21 br label %endif 22 23 else: ; preds = %no_exit 24 %dec = add i32 %k.1, -1 ; <i32> [#uses=1] 25 br label %endif 26 27 endif: ; preds = %else, %then 28 %k.0 = phi i32 [ %dec, %else ], [ 0, %then ] ; <i32> [#uses=1] 29 store i32 2, i32* null 30 br label %loopentry 31 32 return: ; preds = %loopentry 33 ret void 34 } 35 36
