; LLVM IR from cashapp/zipline :: zipline/native/quickjs (cutils)

; 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: nounwind uwtable
define dso_local i32 @strstart(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %11, ptr %8, align 8, !tbaa !5
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %12, ptr %9, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %27, %3
  %14 = load ptr, ptr %9, align 8, !tbaa !5
  %15 = load i8, ptr %14, align 1, !tbaa !9
  %16 = sext i8 %15 to i32
  %17 = icmp ne i32 %16, 0
  br i1 %17, label %18, label %32

18:                                               ; preds = %13
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = load i8, ptr %19, align 1, !tbaa !9
  %21 = sext i8 %20 to i32
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = load i8, ptr %22, align 1, !tbaa !9
  %24 = sext i8 %23 to i32
  %25 = icmp ne i32 %21, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %18
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %39

27:                                               ; preds = %18
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %28, i32 1
  store ptr %29, ptr %8, align 8, !tbaa !5
  %30 = load ptr, ptr %9, align 8, !tbaa !5
  %31 = getelementptr inbounds i8, ptr %30, i32 1
  store ptr %31, ptr %9, align 8, !tbaa !5
  br label %13, !llvm.loop !10

32:                                               ; preds = %13
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = icmp ne ptr %33, null
  br i1 %34, label %35, label %38

35:                                               ; preds = %32
  %36 = load ptr, ptr %8, align 8, !tbaa !5
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %36, ptr %37, align 8, !tbaa !5
  br label %38

38:                                               ; preds = %35, %32
  store i32 1, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %39

39:                                               ; preds = %38, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %40 = load i32, ptr %4, align 4
  ret i32 %40
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = !{!7, !7, 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"

; Function Attrs: nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local range(i32 0, 2) i32 @strstart(ptr noundef %0, ptr nocapture noundef readonly %1, ptr noundef writeonly %2) local_unnamed_addr #0 {
  %4 = load i8, ptr %1, align 1, !tbaa !5
  %.not17 = icmp eq i8 %4, 0
  br i1 %.not17, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %7
  %5 = phi i8 [ %10, %7 ], [ %4, %3 ]
  %.019 = phi ptr [ %9, %7 ], [ %1, %3 ]
  %.01018 = phi ptr [ %8, %7 ], [ %0, %3 ]
  %6 = load i8, ptr %.01018, align 1, !tbaa !5
  %.not15 = icmp eq i8 %6, %5
  br i1 %.not15, label %7, label %.loopexit

7:                                                ; preds = %.lr.ph
  %8 = getelementptr inbounds i8, ptr %.01018, i64 1
  %9 = getelementptr inbounds i8, ptr %.019, i64 1
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %.not = icmp eq i8 %10, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

._crit_edge:                                      ; preds = %7, %3
  %.010.lcssa = phi ptr [ %0, %3 ], [ %8, %7 ]
  %.not14 = icmp eq ptr %2, null
  br i1 %.not14, label %.loopexit, label %11

11:                                               ; preds = %._crit_edge
  store ptr %.010.lcssa, ptr %2, align 8, !tbaa !10
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %._crit_edge, %11
  %.011 = phi i32 [ 1, %11 ], [ 1, %._crit_edge ], [ 0, %.lr.ph ]
  ret i32 %.011
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none) 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !6, i64 0}


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