; LLVM IR from eyangch/competitive-programming :: CALICO/2022_fall/7/7.ll (Z3isVc)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@lts = external dso_local global [14 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [90 x i8], align 1
@__PRETTY_FUNCTION__._Z3isVc = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z3isVc(i8 noundef signext %0) #1 {
  %2 = alloca i1, align 1
  %3 = alloca i8, align 1
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store i8 %0, ptr %3, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !8
  br label %6

6:                                                ; preds = %24, %1
  %7 = load i64, ptr %4, align 8, !tbaa !8
  %8 = icmp slt i64 %7, 14
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  store i32 2, ptr %5, align 4
  br label %27

10:                                               ; preds = %6
  %11 = load i64, ptr %4, align 8, !tbaa !8
  %12 = getelementptr inbounds [14 x i8], ptr @lts, i64 0, i64 %11
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = sext i8 %13 to i32
  %15 = load i8, ptr %3, align 1, !tbaa !5
  %16 = sext i8 %15 to i32
  %17 = icmp eq i32 %14, %16
  br i1 %17, label %18, label %23

18:                                               ; preds = %10
  %19 = load i64, ptr %4, align 8, !tbaa !8
  %20 = icmp slt i64 %19, 5
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store i1 true, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %27

22:                                               ; preds = %18
  store i1 false, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %27

23:                                               ; preds = %10
  br label %24

24:                                               ; preds = %23
  %25 = load i64, ptr %4, align 8, !tbaa !8
  %26 = add nsw i64 %25, 1
  store i64 %26, ptr %4, align 8, !tbaa !8
  br label %6, !llvm.loop !10

27:                                               ; preds = %22, %21, %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %28 = load i32, ptr %5, align 4
  switch i32 %28, label %32 [
    i32 2, label %29
    i32 1, label %30
  ]

29:                                               ; preds = %27
  call void @__assert_fail(ptr noundef @.str.8, ptr noundef @.str.9, i32 noundef 31, ptr noundef @__PRETTY_FUNCTION__._Z3isVc) #4
  unreachable

30:                                               ; preds = %27
  %31 = load i1, ptr %2, align 1
  ret i1 %31

32:                                               ; preds = %27
  unreachable
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }
attributes #4 = { noreturn nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@lts = external dso_local local_unnamed_addr global [14 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [90 x i8], align 1
@__PRETTY_FUNCTION__._Z3isVc = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z3isVc(i8 noundef signext %0) local_unnamed_addr #0 {
  %2 = load <4 x i8>, ptr @lts, align 1
  %3 = insertelement <4 x i8> poison, i8 %0, i64 0
  %4 = shufflevector <4 x i8> %3, <4 x i8> poison, <4 x i32> zeroinitializer
  %5 = icmp eq <4 x i8> %2, %4
  %6 = load i8, ptr getelementptr inbounds (i8, ptr @lts, i64 4), align 1
  %7 = icmp eq i8 %6, %0
  %8 = freeze <4 x i1> %5
  %9 = bitcast <4 x i1> %8 to i4
  %10 = icmp ne i4 %9, 0
  %op.rdx38 = select i1 %10, i1 true, i1 %7
  br i1 %op.rdx38, label %22, label %11

11:                                               ; preds = %1
  %12 = load <8 x i8>, ptr getelementptr inbounds (i8, ptr @lts, i64 5), align 1
  %13 = insertelement <8 x i8> poison, i8 %0, i64 0
  %14 = shufflevector <8 x i8> %13, <8 x i8> poison, <8 x i32> zeroinitializer
  %15 = icmp eq <8 x i8> %12, %14
  %16 = load i8, ptr getelementptr inbounds (i8, ptr @lts, i64 13), align 1
  %17 = icmp eq i8 %16, %0
  %18 = freeze <8 x i1> %15
  %19 = bitcast <8 x i1> %18 to i8
  %20 = icmp ne i8 %19, 0
  %op.rdx = select i1 %20, i1 true, i1 %17
  br i1 %op.rdx, label %22, label %21

21:                                               ; preds = %11
  tail call void @__assert_fail(ptr noundef nonnull @.str.8, ptr noundef nonnull @.str.9, i32 noundef 31, ptr noundef nonnull @__PRETTY_FUNCTION__._Z3isVc) #2
  unreachable

22:                                               ; preds = %11, %1
  ret i1 %op.rdx38
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalDCEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass