; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/juce_audio_basics.ll (ZNK4juce8MidiFile16getLastTimestampEv)

; 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"

%"class.juce::MidiFile" = type <{ %"class.juce::OwnedArray.30", i16, [6 x i8] }>
%"class.juce::OwnedArray.30" = type { %"class.juce::ArrayAllocationBase.31", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.31" = type <{ %"class.juce::HeapBlock.32", i32, [4 x i8] }>
%"class.juce::HeapBlock.32" = type { ptr }

; 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 double @_ZN4juce4jmaxIdEET_S1_S1_(double noundef, double noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_ZNK4juce8MidiFile16getLastTimestampEv(ptr noundef nonnull align 8 dereferenceable(26) %0) #3 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store double 0.000000e+00, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %6 = getelementptr inbounds %"class.juce::MidiFile", ptr %5, i32 0, i32 0
  %7 = call noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %6) #4
  store i32 %7, ptr %4, align 4, !tbaa !11
  br label %8

8:                                                ; preds = %13, %1
  %9 = load i32, ptr %4, align 4, !tbaa !11
  %10 = add nsw i32 %9, -1
  store i32 %10, ptr %4, align 4, !tbaa !11
  %11 = icmp sge i32 %10, 0
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %20

13:                                               ; preds = %8
  %14 = load double, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds %"class.juce::MidiFile", ptr %5, i32 0, i32 0
  %16 = load i32, ptr %4, align 4, !tbaa !11
  %17 = call noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %15, i32 noundef %16) #4
  %18 = call noundef double @_ZNK4juce19MidiMessageSequence10getEndTimeEv(ptr noundef nonnull align 8 dereferenceable(24) %17) #4
  %19 = call noundef double @_ZN4juce4jmaxIdEET_S1_S1_(double noundef %14, double noundef %18)
  store double %19, ptr %3, align 8, !tbaa !9
  br label %8, !llvm.loop !13

20:                                               ; preds = %12
  %21 = load double, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret double %21
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK4juce19MidiMessageSequence10getEndTimeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

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 = { inlinehint 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 #3 = { mustprogress 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 #4 = { 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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_ZN4juce4jmaxIdEET_S1_S1_(double noundef, double noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZNK4juce8MidiFile16getLastTimestampEv(ptr noundef nonnull align 8 dereferenceable(26) %0) local_unnamed_addr #0 align 2 {
  %2 = tail call noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #2
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.04.lcssa = phi double [ 0.000000e+00, %1 ], [ %7, %.lr.ph ]
  ret double %.04.lcssa

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.07 = phi i32 [ %4, %.lr.ph ], [ %2, %1 ]
  %.046 = phi double [ %7, %.lr.ph ], [ 0.000000e+00, %1 ]
  %4 = add nsw i32 %.07, -1
  %5 = tail call noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %0, i32 noundef %4) #2
  %6 = tail call noundef double @_ZNK4juce19MidiMessageSequence10getEndTimeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #2
  %7 = tail call noundef double @_ZN4juce4jmaxIdEET_S1_S1_(double noundef %.046, double noundef %6)
  %8 = icmp ugt i32 %.07, 1
  br i1 %8, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequenceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_ZNK4juce19MidiMessageSequence10getEndTimeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

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 = { inlinehint 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass