; LLVM IR from ConcealNetwork/conceal-desktop :: libqrencode (qrspec)

; 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"

@lengthTableBits = external hidden constant [4 x [3 x i32]], align 16

; 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

declare i32 @QRinput_isSplittableMode(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @QRspec_maximumWords(i32 noundef %0, i32 noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = call i32 @QRinput_isSplittableMode(i32 noundef %10)
  %12 = icmp ne i32 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %42

14:                                               ; preds = %2
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = icmp sle i32 %15, 9
  br i1 %16, label %17, label %18

17:                                               ; preds = %14
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %24

18:                                               ; preds = %14
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = icmp sle i32 %19, 26
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %23

22:                                               ; preds = %18
  store i32 2, ptr %6, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %22, %21
  br label %24

24:                                               ; preds = %23, %17
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [4 x [3 x i32]], ptr @lengthTableBits, i64 0, i64 %26
  %28 = load i32, ptr %6, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [3 x i32], ptr %27, i64 0, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !5
  store i32 %31, ptr %7, align 4, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = shl i32 1, %32
  %34 = sub nsw i32 %33, 1
  store i32 %34, ptr %8, align 4, !tbaa !5
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = icmp eq i32 %35, 3
  br i1 %36, label %37, label %40

37:                                               ; preds = %24
  %38 = load i32, ptr %8, align 4, !tbaa !5
  %39 = mul nsw i32 %38, 2
  store i32 %39, ptr %8, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %37, %24
  %41 = load i32, ptr %8, align 4, !tbaa !5
  store i32 %41, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %40, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %43 = load i32, ptr %3, align 4
  ret i32 %43
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"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"

@lengthTableBits = external hidden local_unnamed_addr constant [4 x [3 x i32]], align 16

declare i32 @QRinput_isSplittableMode(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @QRspec_maximumWords(i32 noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = tail call i32 @QRinput_isSplittableMode(i32 noundef %0) #2
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %13, label %4

4:                                                ; preds = %2
  %5 = icmp slt i32 %1, 10
  %6 = icmp ult i32 %1, 27
  %. = select i1 %6, i64 1, i64 2
  %.011 = select i1 %5, i64 0, i64 %.
  %7 = sext i32 %0 to i64
  %8 = getelementptr inbounds [4 x [3 x i32]], ptr @lengthTableBits, i64 0, i64 %7, i64 %.011
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %notmask = shl nsw i32 -1, %9
  %10 = xor i32 %notmask, -1
  %11 = icmp eq i32 %0, 3
  %12 = zext i1 %11 to i32
  %.0 = shl nuw nsw i32 %10, %12
  br label %13

13:                                               ; preds = %2, %4
  %.010 = phi i32 [ %.0, %4 ], [ 0, %2 ]
  ret i32 %.010
}

attributes #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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass