[DAGCombiner] Add target hook function to decide folding (mul (add x, c1), c2)

[llvm-project.git] / llvm / test / Transforms / LowerSwitch / 2003-05-01-PHIProblem.ll

; RUN: opt < %s -lowerswitch

define void @child(i32 %ct.1) {
entry:
        switch i32 0, label %return [
                 i32 3, label %UnifiedExitNode
                 i32 0, label %return
        ]
return:         ; preds = %entry, %entry
        %result.0 = phi i32* [ null, %entry ], [ null, %entry ]         ; <i32*> [#uses=0]
        br label %UnifiedExitNode
UnifiedExitNode:                ; preds = %return, %entry
        ret void
}