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