; LLVM IR from MikeMirzayanov/testlib :: checkers/acmp.ll (Z14resultExitCode7TResult)

; 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"

; Function Attrs: mustprogress nounwind willreturn memory(none) uwtable
define dso_local noundef i32 @_Z14resultExitCode7TResult(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  store i32 0, ptr %2, align 4
  br label %39

7:                                                ; preds = %1
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = icmp eq i32 %8, 1
  br i1 %9, label %10, label %11

10:                                               ; preds = %7
  store i32 1, ptr %2, align 4
  br label %39

11:                                               ; preds = %7
  %12 = load i32, ptr %3, align 4, !tbaa !5
  %13 = icmp eq i32 %12, 2
  br i1 %13, label %14, label %15

14:                                               ; preds = %11
  store i32 2, ptr %2, align 4
  br label %39

15:                                               ; preds = %11
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = icmp eq i32 %16, 3
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i32 3, ptr %2, align 4
  br label %39

19:                                               ; preds = %15
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = icmp eq i32 %20, 4
  br i1 %21, label %22, label %23

22:                                               ; preds = %19
  store i32 4, ptr %2, align 4
  br label %39

23:                                               ; preds = %19
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = icmp eq i32 %24, 5
  br i1 %25, label %26, label %27

26:                                               ; preds = %23
  store i32 7, ptr %2, align 4
  br label %39

27:                                               ; preds = %23
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = icmp eq i32 %28, 8
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  store i32 2, ptr %2, align 4
  br label %39

31:                                               ; preds = %27
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = icmp sge i32 %32, 16
  br i1 %33, label %34, label %38

34:                                               ; preds = %31
  %35 = load i32, ptr %3, align 4, !tbaa !5
  %36 = sub nsw i32 %35, 16
  %37 = add nsw i32 0, %36
  store i32 %37, ptr %2, align 4
  br label %39

38:                                               ; preds = %31
  store i32 3, ptr %2, align 4
  br label %39

39:                                               ; preds = %38, %34, %30, %26, %22, %18, %14, %10, %6
  %40 = load i32, ptr %2, align 4
  ret i32 %40
}

attributes #0 = { mustprogress nounwind willreturn memory(none) 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" }

!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 = !{!"_ZTS7TResult", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

@switch.table._Z14resultExitCode7TResult = private unnamed_addr constant [9 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 7, i32 0, i32 0, i32 2], align 4

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i32 0, 2147483632) i32 @_Z14resultExitCode7TResult(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp ult i32 %0, 9
  br i1 %2, label %switch.hole_check, label %3

3:                                                ; preds = %switch.hole_check, %1
  %4 = icmp sgt i32 %0, 15
  %5 = add nsw i32 %0, -16
  %spec.select = select i1 %4, i32 %5, i32 3
  br label %7

switch.hole_check:                                ; preds = %1
  %switch.maskindex = trunc nuw i32 %0 to i16
  %switch.shifted = lshr i16 319, %switch.maskindex
  %switch.lobit = trunc i16 %switch.shifted to i1
  br i1 %switch.lobit, label %switch.lookup, label %3

switch.lookup:                                    ; preds = %switch.hole_check
  %6 = zext nneg i32 %0 to i64
  %switch.gep = getelementptr inbounds [9 x i32], ptr @switch.table._Z14resultExitCode7TResult, i64 0, i64 %6
  %switch.load = load i32, ptr %switch.gep, align 4
  br label %7

7:                                                ; preds = %switch.lookup, %3
  %.0 = phi i32 [ %spec.select, %3 ], [ %switch.load, %switch.lookup ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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" }

!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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass