; LLVM IR from MinhasKamal/AlgorithmImplementations :: arithmeticExpressions/infixEvaluation/InfixEvaluation.ll (Z18operatorPrecedencec)

; 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: 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 i32 @_Z18operatorPrecedencec(i8 noundef signext %0) #1 {
  %2 = alloca i8, align 1
  %3 = alloca i32, align 4
  store i8 %0, ptr %2, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !8
  %4 = load i8, ptr %2, align 1, !tbaa !5
  %5 = sext i8 %4 to i32
  %6 = icmp eq i32 %5, 43
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  store i32 1, ptr %3, align 4, !tbaa !8
  br label %33

8:                                                ; preds = %1
  %9 = load i8, ptr %2, align 1, !tbaa !5
  %10 = sext i8 %9 to i32
  %11 = icmp eq i32 %10, 45
  br i1 %11, label %12, label %13

12:                                               ; preds = %8
  store i32 2, ptr %3, align 4, !tbaa !8
  br label %32

13:                                               ; preds = %8
  %14 = load i8, ptr %2, align 1, !tbaa !5
  %15 = sext i8 %14 to i32
  %16 = icmp eq i32 %15, 42
  br i1 %16, label %17, label %18

17:                                               ; preds = %13
  store i32 3, ptr %3, align 4, !tbaa !8
  br label %31

18:                                               ; preds = %13
  %19 = load i8, ptr %2, align 1, !tbaa !5
  %20 = sext i8 %19 to i32
  %21 = icmp eq i32 %20, 47
  br i1 %21, label %22, label %23

22:                                               ; preds = %18
  store i32 4, ptr %3, align 4, !tbaa !8
  br label %30

23:                                               ; preds = %18
  %24 = load i8, ptr %2, align 1, !tbaa !5
  %25 = sext i8 %24 to i32
  %26 = icmp eq i32 %25, 94
  br i1 %26, label %27, label %28

27:                                               ; preds = %23
  store i32 5, ptr %3, align 4, !tbaa !8
  br label %29

28:                                               ; preds = %23
  store i32 7, ptr %3, align 4, !tbaa !8
  br label %29

29:                                               ; preds = %28, %27
  br label %30

30:                                               ; preds = %29, %22
  br label %31

31:                                               ; preds = %30, %17
  br label %32

32:                                               ; preds = %31, %12
  br label %33

33:                                               ; preds = %32, %7
  %34 = load i32, ptr %3, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %34
}

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 = { 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 = !{!"int", !6, i64 0}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i32 1, 8) i32 @_Z18operatorPrecedencec(i8 noundef signext %0) local_unnamed_addr #0 {
  switch i8 %0, label %6 [
    i8 43, label %7
    i8 45, label %2
    i8 42, label %3
    i8 47, label %4
    i8 94, label %5
  ]

2:                                                ; preds = %1
  br label %7

3:                                                ; preds = %1
  br label %7

4:                                                ; preds = %1
  br label %7

5:                                                ; preds = %1
  br label %7

6:                                                ; preds = %1
  br label %7

7:                                                ; preds = %1, %2, %4, %6, %5, %3
  %.0 = phi i32 [ 2, %2 ], [ 3, %3 ], [ 4, %4 ], [ 5, %5 ], [ 7, %6 ], [ 1, %1 ]
  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,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass