llvm-6502/test/Assembler/2002-08-22-DominanceProblem.ll

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; RUN: llvm-upgrade < %s | llvm-as -o /dev/null -f
; Dominance relationships is not calculated correctly for unreachable blocks,
; which causes the verifier to barf on this input.
int %test(bool %b) {
BB0: ret int 7 ; Loop is unreachable
Loop:
%B = phi int [%B, %L2], [%B, %Loop] ; PHI has same value always.
br bool %b, label %L2, label %Loop
L2:
br label %Loop
}