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.
5 ; RUN: opt < %s -passes=adce -S | FileCheck %s
6 ; RUN: opt < %s -passes=adce -adce-remove-loops -S | FileCheck %s
8 target datalayout = "e-p:32:32"
10 define void @dead_test8() {
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
18 no_exit: ; preds = %loopentry
19 ; CHECK: br label %then
20 br i1 false, label %then, label %else
22 then: ; preds = %no_exit
25 else: ; preds = %no_exit
26 %dec = add i32 %k.1, -1 ; <i32> [#uses=1]
29 endif: ; preds = %else, %then
30 %k.0 = phi i32 [ %dec, %else ], [ 0, %then ] ; <i32> [#uses=1]
34 return: ; preds = %loopentry