; LLVM IR from microsoft/LightAIMD :: src (utf8)

; 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: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #1

; Function Attrs: nounwind uwtable
define dso_local double @utf8_codepoints_to_f64(ptr noundef %0, i64 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca double, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = add i64 %10, 1
  %12 = call ptr @llvm.stacksave.p0()
  store ptr %12, ptr %5, align 8
  %13 = alloca i8, i64 %11, align 16
  store i64 %11, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %14

14:                                               ; preds = %27, %2
  %15 = load i64, ptr %7, align 8, !tbaa !9
  %16 = load i64, ptr %4, align 8, !tbaa !9
  %17 = icmp ult i64 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %30

19:                                               ; preds = %14
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = load i64, ptr %7, align 8, !tbaa !9
  %22 = getelementptr inbounds i32, ptr %20, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !11
  %24 = trunc i32 %23 to i8
  %25 = load i64, ptr %7, align 8, !tbaa !9
  %26 = getelementptr inbounds i8, ptr %13, i64 %25
  store i8 %24, ptr %26, align 1, !tbaa !13
  br label %27

27:                                               ; preds = %19
  %28 = load i64, ptr %7, align 8, !tbaa !9
  %29 = add i64 %28, 1
  store i64 %29, ptr %7, align 8, !tbaa !9
  br label %14, !llvm.loop !14

30:                                               ; preds = %18
  %31 = load i64, ptr %4, align 8, !tbaa !9
  %32 = getelementptr inbounds i8, ptr %13, i64 %31
  store i8 0, ptr %32, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %33 = call double @strtod(ptr noundef %13, ptr noundef %8) #4
  store double %33, ptr %9, align 8, !tbaa !16
  %34 = load double, ptr %9, align 8, !tbaa !16
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %35 = load ptr, ptr %5, align 8
  call void @llvm.stackrestore.p0(ptr %35)
  ret double %34
}

; Function Attrs: nounwind
declare double @strtod(ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn }
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 "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!17, !17, i64 0}
!17 = !{!"double", !7, i64 0}


; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nofree nounwind uwtable
define dso_local double @utf8_codepoints_to_f64(ptr nocapture noundef readonly %0, i64 noundef %1) local_unnamed_addr #1 {
  %3 = alloca ptr, align 8
  %4 = add i64 %1, 1
  %5 = alloca i8, i64 %4, align 16
  %.not = icmp eq i64 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %min.iters.check = icmp ult i64 %1, 8
  br i1 %min.iters.check, label %.lr.ph.preheader12, label %vector.ph

.lr.ph.preheader12:                               ; preds = %middle.block, %.lr.ph.preheader
  %.010.ph = phi i64 [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  br label %.lr.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.vec = and i64 %1, -8
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %6 = getelementptr inbounds i32, ptr %0, i64 %index
  %7 = getelementptr inbounds i8, ptr %6, i64 16
  %wide.load = load <4 x i32>, ptr %6, align 4, !tbaa !5
  %wide.load11 = load <4 x i32>, ptr %7, align 4, !tbaa !5
  %8 = trunc <4 x i32> %wide.load to <4 x i8>
  %9 = trunc <4 x i32> %wide.load11 to <4 x i8>
  %10 = getelementptr inbounds i8, ptr %5, i64 %index
  %11 = getelementptr inbounds i8, ptr %10, i64 4
  store <4 x i8> %8, ptr %10, align 8, !tbaa !9
  store <4 x i8> %9, ptr %11, align 4, !tbaa !9
  %index.next = add nuw i64 %index, 8
  %12 = icmp eq i64 %index.next, %n.vec
  br i1 %12, label %middle.block, label %vector.body, !llvm.loop !10

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %1
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader12

._crit_edge:                                      ; preds = %.lr.ph, %middle.block, %2
  %13 = getelementptr inbounds i8, ptr %5, i64 %1
  store i8 0, ptr %13, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %14 = call double @strtod(ptr noundef nonnull %5, ptr noundef nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret double %14

.lr.ph:                                           ; preds = %.lr.ph.preheader12, %.lr.ph
  %.010 = phi i64 [ %19, %.lr.ph ], [ %.010.ph, %.lr.ph.preheader12 ]
  %15 = getelementptr inbounds i32, ptr %0, i64 %.010
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = trunc i32 %16 to i8
  %18 = getelementptr inbounds i8, ptr %5, i64 %.010
  store i8 %17, ptr %18, align 1, !tbaa !9
  %19 = add nuw i64 %.010, 1
  %exitcond.not = icmp eq i64 %19, %1
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !14
}

; Function Attrs: mustprogress nofree nounwind willreturn
declare double @strtod(ptr noundef readonly, ptr nocapture noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress nofree nounwind willreturn "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"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11, !12, !13}
!11 = !{!"llvm.loop.mustprogress"}
!12 = !{!"llvm.loop.isvectorized", i32 1}
!13 = !{!"llvm.loop.unroll.runtime.disable"}
!14 = distinct !{!14, !11, !13, !12}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass