; LLVM IR from jgaeddert/liquid-dsp :: examples (repack_bytes_example)

; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @print_symbol(i8 noundef zeroext %0, i32 noundef %1) #0 {
  %3 = alloca i8, align 1
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i8 %0, ptr %3, align 1, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %5, align 4, !tbaa !8
  br label %7

7:                                                ; preds = %25, %2
  %8 = load i32, ptr %5, align 4, !tbaa !8
  %9 = load i32, ptr %4, align 4, !tbaa !8
  %10 = icmp ult i32 %8, %9
  br i1 %10, label %11, label %28

11:                                               ; preds = %7
  %12 = load i32, ptr %4, align 4, !tbaa !8
  %13 = load i32, ptr %5, align 4, !tbaa !8
  %14 = sub i32 %12, %13
  %15 = sub i32 %14, 1
  store i32 %15, ptr %6, align 4, !tbaa !8
  %16 = load i8, ptr %3, align 1, !tbaa !5
  %17 = zext i8 %16 to i32
  %18 = load i32, ptr %6, align 4, !tbaa !8
  %19 = ashr i32 %17, %18
  %20 = and i32 %19, 1
  %21 = icmp ne i32 %20, 0
  %22 = zext i1 %21 to i64
  %23 = select i1 %21, i32 49, i32 48
  %24 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %23)
  br label %25

25:                                               ; preds = %11
  %26 = load i32, ptr %5, align 4, !tbaa !8
  %27 = add i32 %26, 1
  store i32 %27, ptr %5, align 4, !tbaa !8
  br label %7, !llvm.loop !10

28:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @print_symbol(i8 noundef zeroext %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not9 = icmp eq i32 %1, 0
  br i1 %.not9, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %3 = zext i8 %0 to i32
  br label %4

4:                                                ; preds = %.lr.ph, %4
  %.08 = phi i32 [ 0, %.lr.ph ], [ %11, %4 ]
  %5 = xor i32 %.08, -1
  %6 = add i32 %5, %1
  %7 = shl nuw i32 1, %6
  %8 = and i32 %7, %3
  %.not = icmp eq i32 %8, 0
  %9 = select i1 %.not, i32 48, i32 49
  %10 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %9)
  %11 = add nuw i32 %.08, 1
  %exitcond.not = icmp eq i32 %11, %1
  br i1 %exitcond.not, label %._crit_edge, label %4, !llvm.loop !5

._crit_edge:                                      ; preds = %4, %2
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { nofree 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 #1 = { nofree nounwind "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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass