llvm-6502/test/Transforms/IndVarSimplify/avoid-i0.ll

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; RUN: llvm-as < %s | opt -indvars
; PR4054
; Don't treat an and with 0 as a mask (trunc+zext).
define i32 @int80(i8 signext %p_71) nounwind {
entry:
br label %bb
bb: ; preds = %bb6, %entry
%p_71_addr.0 = phi i8 [ %p_71, %entry ], [ %0, %bb6 ] ; <i8> [#uses=0]
br i1 false, label %bb4, label %bb1
bb1: ; preds = %bb
ret i32 0
bb4: ; preds = %bb4, %bb
br i1 false, label %bb6, label %bb4
bb6: ; preds = %bb4
%0 = and i8 0, 0 ; <i8> [#uses=1]
br label %bb
}