; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_ArgsParser (isWhitespaceChar__)

; 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: nounwind uwtable
define dso_local zeroext i8 @ArgsParser__isWhitespaceChar__(i8 noundef signext %0) #1 {
  %2 = alloca i8, align 1
  %3 = alloca i8, align 1
  %4 = alloca i8, align 1
  %5 = alloca i8, align 1
  store i8 %0, ptr %2, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #2
  %6 = load i8, ptr %2, align 1, !tbaa !5
  %7 = sext i8 %6 to i32
  %8 = icmp eq i32 %7, 32
  %9 = zext i1 %8 to i32
  %10 = trunc i32 %9 to i8
  store i8 %10, ptr %3, align 1, !tbaa !5
  %11 = load i8, ptr %3, align 1, !tbaa !5
  %12 = icmp ne i8 %11, 0
  br i1 %12, label %19, label %13

13:                                               ; preds = %1
  %14 = load i8, ptr %2, align 1, !tbaa !5
  %15 = sext i8 %14 to i32
  %16 = icmp eq i32 %15, 9
  %17 = zext i1 %16 to i32
  %18 = trunc i32 %17 to i8
  store i8 %18, ptr %3, align 1, !tbaa !5
  br label %19

19:                                               ; preds = %13, %1
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #2
  %20 = load i8, ptr %3, align 1, !tbaa !5
  store i8 %20, ptr %4, align 1, !tbaa !5
  %21 = load i8, ptr %4, align 1, !tbaa !5
  %22 = icmp ne i8 %21, 0
  br i1 %22, label %29, label %23

23:                                               ; preds = %19
  %24 = load i8, ptr %2, align 1, !tbaa !5
  %25 = sext i8 %24 to i32
  %26 = icmp eq i32 %25, 10
  %27 = zext i1 %26 to i32
  %28 = trunc i32 %27 to i8
  store i8 %28, ptr %4, align 1, !tbaa !5
  br label %29

29:                                               ; preds = %23, %19
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  %30 = load i8, ptr %4, align 1, !tbaa !5
  store i8 %30, ptr %5, align 1, !tbaa !5
  %31 = load i8, ptr %5, align 1, !tbaa !5
  %32 = icmp ne i8 %31, 0
  br i1 %32, label %39, label %33

33:                                               ; preds = %29
  %34 = load i8, ptr %2, align 1, !tbaa !5
  %35 = sext i8 %34 to i32
  %36 = icmp eq i32 %35, 13
  %37 = zext i1 %36 to i32
  %38 = trunc i32 %37 to i8
  store i8 %38, ptr %5, align 1, !tbaa !5
  br label %39

39:                                               ; preds = %33, %29
  %40 = load i8, ptr %5, align 1, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #2
  ret i8 %40
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/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 zeroext range(i8 0, 2) i8 @ArgsParser__isWhitespaceChar__(i8 noundef signext %0) local_unnamed_addr #0 {
.critedge:
  %1 = icmp eq i8 %0, 32
  %2 = add i8 %0, -9
  %3 = icmp ult i8 %2, 2
  %4 = icmp eq i8 %0, 13
  %5 = or i1 %4, %3
  %narrow = or i1 %1, %5
  %.0 = zext i1 %narrow to i8
  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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass