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

[llvm-project.git] / llvm / test / Transforms / ADCE / 2002-01-31-UseStuckAround.ll

; RUN:  opt < %s -adce

define i32 @"main"(i32 %argc) {
        br label %2

        %retval = phi i32 [ %argc, %2 ]         ; <i32> [#uses=2]
        %two = add i32 %retval, %retval         ; <i32> [#uses=1]
        ret i32 %two

        br label %1
}