llvm-project/llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-redunda...

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; REQUIRES: asserts
; RUN: opt -passes='unswitch<nontrivial>' -disable-output -S < %s
; RUN: opt -simple-loop-unswitch -enable-nontrivial-unswitch -disable-output -S < %s
; This loop shouldn't trigger asserts in SimpleLoopUnswitch.
define void @test_redundant_switch(i1* %ptr, i32 %cond) {
entry:
br label %loop_begin
loop_begin:
switch i32 %cond, label %loop_body [
i32 0, label %loop_body
]
loop_body:
br label %loop_latch
loop_latch:
%v = load i1, i1* %ptr
br i1 %v, label %loop_begin, label %loop_exit
loop_exit:
ret void
}