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; THis testcase caused an assertion failure because a PHI node did not have
; entries for it's postdominator. But I think this can only happen when the
; PHI node is dead, so we just avoid patching up dead PHI nodes.
; RUN: opt < %s -adce -S | FileCheck %s
; RUN: opt < %s -adce -adce-remove-loops -S | FileCheck %s
target datalayout = "e-p:32:32"
define void @dead_test8() {
entry:
br label %loopentry
loopentry: ; preds = %endif, %entry
%k.1 = phi i32 [ %k.0, %endif ], [ 0, %entry ] ; <i32> [#uses=1]
br i1 false, label %no_exit, label %return
no_exit: ; preds = %loopentry
; CHECK: br label %then
br i1 false, label %then, label %else
then: ; preds = %no_exit
br label %endif
else: ; preds = %no_exit
%dec = add i32 %k.1, -1 ; <i32> [#uses=1]
br label %endif
endif: ; preds = %else, %then
%k.0 = phi i32 [ %dec, %else ], [ 0, %then ] ; <i32> [#uses=1]
store i32 2, i32* null
br label %loopentry
return: ; preds = %loopentry
ret void
}
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