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1; RUN: opt -passes='loop(loop-instsimplify,loop-simplifycfg,simple-loop-unswitch),verify<loops>' -S < %s | FileCheck %s2; RUN: opt -verify-memoryssa -passes='loop-mssa(loop-instsimplify,loop-simplifycfg,simple-loop-unswitch),verify<loops>' -S < %s | FileCheck %s3 4declare void @some_func() noreturn5 6define i32 @test1(ptr %var, i1 %cond1, i1 %cond2) {7; CHECK-LABEL: @test1(8entry:9 br label %loop_begin10; CHECK-NEXT: entry:11; CHECK-NEXT: br i1 %{{.*}}, label %entry.split, label %loop_exit.split12;13; CHECK: entry.split:14; CHECK-NEXT: br i1 %{{.*}}, label %entry.split.split, label %loop_exit15;16; CHECK: entry.split.split:17; CHECK-NEXT: br label %loop_begin18 19loop_begin:20 br i1 %cond1, label %continue, label %loop_exit ; first trivial condition21 22continue:23 %var_val = load i32, ptr %var24 %var_cond = trunc i32 %var_val to i125 %maybe_cond = select i1 %cond1, i1 %cond2, i1 %var_cond26 br i1 %maybe_cond, label %do_something, label %loop_exit ; second trivial condition27 28do_something:29 call void @some_func() noreturn nounwind30 br label %loop_begin31; CHECK: loop_begin:32; CHECK-NEXT: call33; CHECK-NEXT: br label %loop_begin34 35loop_exit:36 ret i32 037; CHECK: loop_exit:38; CHECK-NEXT: br label %loop_exit.split39;40; CHECK: loop_exit.split:41; CHECK-NEXT: ret42}43