; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_Parser (isIdentifierStartChar__)

; 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 @Parser__isIdentifierStartChar__(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
  %6 = alloca i8, align 1
  store i8 %0, ptr %2, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #2
  %7 = load i8, ptr %2, align 1, !tbaa !5
  %8 = zext i8 %7 to i32
  %9 = icmp sge i32 %8, 65
  %10 = zext i1 %9 to i32
  %11 = trunc i32 %10 to i8
  store i8 %11, ptr %3, align 1, !tbaa !5
  %12 = load i8, ptr %3, align 1, !tbaa !5
  %13 = icmp ne i8 %12, 0
  br i1 %13, label %14, label %20

14:                                               ; preds = %1
  %15 = load i8, ptr %2, align 1, !tbaa !5
  %16 = zext i8 %15 to i32
  %17 = icmp sle i32 %16, 90
  %18 = zext i1 %17 to i32
  %19 = trunc i32 %18 to i8
  store i8 %19, ptr %3, align 1, !tbaa !5
  br label %20

20:                                               ; preds = %14, %1
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #2
  %21 = load i8, ptr %3, align 1, !tbaa !5
  store i8 %21, ptr %4, align 1, !tbaa !5
  %22 = load i8, ptr %4, align 1, !tbaa !5
  %23 = icmp ne i8 %22, 0
  br i1 %23, label %40, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  %25 = load i8, ptr %2, align 1, !tbaa !5
  %26 = zext i8 %25 to i32
  %27 = icmp sge i32 %26, 97
  %28 = zext i1 %27 to i32
  %29 = trunc i32 %28 to i8
  store i8 %29, ptr %5, align 1, !tbaa !5
  %30 = load i8, ptr %5, align 1, !tbaa !5
  %31 = icmp ne i8 %30, 0
  br i1 %31, label %32, label %38

32:                                               ; preds = %24
  %33 = load i8, ptr %2, align 1, !tbaa !5
  %34 = zext i8 %33 to i32
  %35 = icmp sle i32 %34, 122
  %36 = zext i1 %35 to i32
  %37 = trunc i32 %36 to i8
  store i8 %37, ptr %5, align 1, !tbaa !5
  br label %38

38:                                               ; preds = %32, %24
  %39 = load i8, ptr %5, align 1, !tbaa !5
  store i8 %39, ptr %4, align 1, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  br label %40

40:                                               ; preds = %38, %20
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #2
  %41 = load i8, ptr %4, align 1, !tbaa !5
  store i8 %41, ptr %6, align 1, !tbaa !5
  %42 = load i8, ptr %6, align 1, !tbaa !5
  %43 = icmp ne i8 %42, 0
  br i1 %43, label %50, label %44

44:                                               ; preds = %40
  %45 = load i8, ptr %2, align 1, !tbaa !5
  %46 = sext i8 %45 to i32
  %47 = icmp eq i32 %46, 95
  %48 = zext i1 %47 to i32
  %49 = trunc i32 %48 to i8
  store i8 %49, ptr %6, align 1, !tbaa !5
  br label %50

50:                                               ; preds = %44, %40
  %51 = load i8, ptr %6, align 1, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #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 %51
}

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 @Parser__isIdentifierStartChar__(i8 noundef signext %0) local_unnamed_addr #0 {
.critedge:
  %1 = and i8 %0, -33
  %2 = add i8 %1, -65
  %or.cond = icmp ult i8 %2, 26
  %3 = icmp eq i8 %0, 95
  %narrow = or i1 %or.cond, %3
  %.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,SROAPass,SimplifyCFGPass