; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/juce_audio_basics.ll (ZNK4juce11MidiMessage9isNoteOffEb)

; 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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce11MidiMessage10getRawDataEv(ptr noundef nonnull align 8 dereferenceable(20)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK4juce11MidiMessage9isNoteOffEb(ptr noundef nonnull align 8 dereferenceable(20) %0, i1 noundef zeroext %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = zext i1 %1 to i8
  store i8 %6, ptr %4, align 1, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %8 = call noundef ptr @_ZNK4juce11MidiMessage10getRawDataEv(ptr noundef nonnull align 8 dereferenceable(20) %7) #2
  store ptr %8, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %9, i64 0
  %11 = load i8, ptr %10, align 1, !tbaa !11
  %12 = zext i8 %11 to i32
  %13 = and i32 %12, 240
  %14 = icmp eq i32 %13, 128
  br i1 %14, label %33, label %15

15:                                               ; preds = %2
  %16 = load i8, ptr %4, align 1, !tbaa !9, !range !12, !noundef !13
  %17 = trunc i8 %16 to i1
  br i1 %17, label %18, label %31

18:                                               ; preds = %15
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %19, i64 2
  %21 = load i8, ptr %20, align 1, !tbaa !11
  %22 = zext i8 %21 to i32
  %23 = icmp eq i32 %22, 0
  br i1 %23, label %24, label %31

24:                                               ; preds = %18
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds i8, ptr %25, i64 0
  %27 = load i8, ptr %26, align 1, !tbaa !11
  %28 = zext i8 %27 to i32
  %29 = and i32 %28, 240
  %30 = icmp eq i32 %29, 144
  br label %31

31:                                               ; preds = %24, %18, %15
  %32 = phi i1 [ false, %18 ], [ false, %15 ], [ %30, %24 ]
  br label %33

33:                                               ; preds = %31, %2
  %34 = phi i1 [ true, %2 ], [ %32, %31 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret i1 %34
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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" }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{i8 0, i8 2}
!13 = !{}


; 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 nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce11MidiMessage10getRawDataEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK4juce11MidiMessage9isNoteOffEb(ptr noundef nonnull align 8 dereferenceable(20) %0, i1 noundef zeroext %1) local_unnamed_addr #0 align 2 {
  %3 = tail call noundef ptr @_ZNK4juce11MidiMessage10getRawDataEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #1
  %4 = load i8, ptr %3, align 1, !tbaa !5
  %5 = and i8 %4, -16
  %6 = icmp eq i8 %5, -128
  %.not = xor i1 %1, true
  %brmerge = or i1 %6, %.not
  br i1 %brmerge, label %12, label %7

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %3, i64 2
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = icmp eq i8 %9, 0
  %11 = icmp eq i8 %5, -112
  %spec.select = and i1 %11, %10
  br label %12

12:                                               ; preds = %7, %2
  %13 = phi i1 [ %6, %2 ], [ %spec.select, %7 ]
  ret i1 %13
}

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" }
attributes #1 = { 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++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass