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 -S | FileCheck %s 6 ; RUN: opt < %s -adce -adce-remove-loops -S | FileCheck %s 7 8 target datalayout = "e-p:32:32" 9 10 define void @dead_test8() { 11 entry: 12 br label %loopentry 13 14 loopentry: ; preds = %endif, %entry 15 %k.1 = phi i32 [ %k.0, %endif ], [ 0, %entry ] ; <i32> [#uses=1] 16 br i1 false, label %no_exit, label %return 17 18 no_exit: ; preds = %loopentry 19 ; CHECK: br label %then 20 br i1 false, label %then, label %else 21 22 then: ; preds = %no_exit 23 br label %endif 24 25 else: ; preds = %no_exit 26 %dec = add i32 %k.1, -1 ; <i32> [#uses=1] 27 br label %endif 28 29 endif: ; preds = %else, %then 30 %k.0 = phi i32 [ %dec, %else ], [ 0, %then ] ; <i32> [#uses=1] 31 store i32 2, i32* null 32 br label %loopentry 33 34 return: ; preds = %loopentry 35 ret void 36 } 37 38
