; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/juce_audio_basics.ll (ZNK4juce7MPENote7isValidEv)

; 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"

%"struct.juce::MPENote" = type <{ i16, i8, i8, %"class.juce::MPEValue", %"class.juce::MPEValue", %"class.juce::MPEValue", %"class.juce::MPEValue", %"class.juce::MPEValue", double, i32, [4 x i8] }>
%"class.juce::MPEValue" = type { i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK4juce7MPENote7isValidEv(ptr noundef nonnull align 8 dereferenceable(36) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"struct.juce::MPENote", ptr %3, i32 0, i32 1
  %5 = load i8, ptr %4, align 2, !tbaa !9
  %6 = zext i8 %5 to i32
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %8, label %18

8:                                                ; preds = %1
  %9 = getelementptr inbounds %"struct.juce::MPENote", ptr %3, i32 0, i32 1
  %10 = load i8, ptr %9, align 2, !tbaa !9
  %11 = zext i8 %10 to i32
  %12 = icmp sle i32 %11, 16
  br i1 %12, label %13, label %18

13:                                               ; preds = %8
  %14 = getelementptr inbounds %"struct.juce::MPENote", ptr %3, i32 0, i32 2
  %15 = load i8, ptr %14, align 1, !tbaa !16
  %16 = zext i8 %15 to i32
  %17 = icmp slt i32 %16, 128
  br label %18

18:                                               ; preds = %13, %8, %1
  %19 = phi i1 [ false, %8 ], [ false, %1 ], [ %17, %13 ]
  ret i1 %19
}

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" }

!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, !7, i64 2}
!10 = !{!"_ZTSN4juce7MPENoteE", !11, i64 0, !7, i64 2, !7, i64 3, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16, !12, i64 20, !14, i64 24, !15, i64 32}
!11 = !{!"short", !7, i64 0}
!12 = !{!"_ZTSN4juce8MPEValueE", !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = !{!"_ZTSN4juce7MPENote8KeyStateE", !7, i64 0}
!16 = !{!10, !7, i64 3}


; 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(argmem: read) uwtable
define dso_local noundef zeroext i1 @_ZNK4juce7MPENote7isValidEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(36) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 2
  %3 = load i8, ptr %2, align 2, !tbaa !5
  %4 = add i8 %3, -1
  %or.cond = icmp ult i8 %4, 16
  %5 = getelementptr inbounds i8, ptr %0, i64 3
  %6 = load i8, ptr %5, align 1
  %7 = icmp sgt i8 %6, -1
  %8 = select i1 %or.cond, i1 %7, i1 false
  ret i1 %8
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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)"}
!5 = !{!6, !8, i64 2}
!6 = !{!"_ZTSN4juce7MPENoteE", !7, i64 0, !8, i64 2, !8, i64 3, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !12, i64 24, !13, i64 32}
!7 = !{!"short", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN4juce8MPEValueE", !11, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!"double", !8, i64 0}
!13 = !{!"_ZTSN4juce7MPENote8KeyStateE", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass