25 lines · plain
1; REQUIRES: asserts2; RUN: opt -passes='simple-loop-unswitch<nontrivial>' -disable-output -S < %s3; RUN: opt -passes='loop-mssa(simple-loop-unswitch<nontrivial>)' -disable-output -S < %s4 5; This loop shouldn't trigger asserts in SimpleLoopUnswitch.6define void @test_redundant_switch(ptr %ptr, i32 %cond) {7entry:8 br label %loop_begin9 10loop_begin:11 switch i32 %cond, label %loop_body [12 i32 0, label %loop_body13 ]14 15loop_body:16 br label %loop_latch17 18loop_latch:19 %v = load i1, ptr %ptr20 br i1 %v, label %loop_begin, label %loop_exit21 22loop_exit:23 ret void24}25