; LLVM IR from DionysiosB/CodeForces :: 1200-1299/1254A-FeedingChicken.ll (Z7getChari)

; 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 uwtable
define dso_local noundef signext i8 @_Z7getChari(i32 noundef %0) #0 {
  %2 = alloca i8, align 1
  %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 slt i32 %4, 10
  br i1 %5, label %6, label %10

6:                                                ; preds = %1
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = add nsw i32 48, %7
  %9 = trunc i32 %8 to i8
  store i8 %9, ptr %2, align 1
  br label %27

10:                                               ; preds = %1
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = icmp slt i32 %11, 36
  br i1 %12, label %13, label %18

13:                                               ; preds = %10
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = add nsw i32 97, %14
  %16 = sub nsw i32 %15, 10
  %17 = trunc i32 %16 to i8
  store i8 %17, ptr %2, align 1
  br label %27

18:                                               ; preds = %10
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = icmp slt i32 %19, 62
  br i1 %20, label %21, label %26

21:                                               ; preds = %18
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = add nsw i32 65, %22
  %24 = sub nsw i32 %23, 36
  %25 = trunc i32 %24 to i8
  store i8 %25, ptr %2, align 1
  br label %27

26:                                               ; preds = %18
  store i8 35, ptr %2, align 1
  br label %27

27:                                               ; preds = %26, %21, %13, %6
  %28 = load i8, ptr %2, align 1
  ret i8 %28
}

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" }

!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 = !{!"int", !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef signext i8 @_Z7getChari(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp slt i32 %0, 10
  br i1 %2, label %3, label %6

3:                                                ; preds = %1
  %4 = trunc i32 %0 to i8
  %5 = add i8 %4, 48
  br label %16

6:                                                ; preds = %1
  %7 = icmp ult i32 %0, 36
  br i1 %7, label %8, label %11

8:                                                ; preds = %6
  %9 = trunc nuw i32 %0 to i8
  %10 = add nuw nsw i8 %9, 87
  br label %16

11:                                               ; preds = %6
  %12 = icmp ult i32 %0, 62
  br i1 %12, label %13, label %16

13:                                               ; preds = %11
  %14 = trunc nuw i32 %0 to i8
  %15 = add nuw nsw i8 %14, 29
  br label %16

16:                                               ; preds = %11, %13, %8, %3
  %.0 = phi i8 [ %5, %3 ], [ %10, %8 ], [ %15, %13 ], [ 35, %11 ]
  ret i8 %.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: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass