; LLVM IR from simon-zerisenay/42_Push_Swap :: libft (ft_memchr)

; 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: nounwind uwtable
define dso_local ptr @ft_memchr(ptr noundef %0, i32 noundef %1, i64 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 0, ptr %9, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %11, ptr %8, align 8, !tbaa !5
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = icmp sge i32 %12, 256
  br i1 %13, label %14, label %17

14:                                               ; preds = %3
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = srem i32 %15, 256
  store i32 %16, ptr %6, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %14, %3
  br label %18

18:                                               ; preds = %36, %17
  %19 = load i64, ptr %7, align 8, !tbaa !11
  %20 = add i64 %19, -1
  store i64 %20, ptr %7, align 8, !tbaa !11
  %21 = icmp ne i64 %19, 0
  br i1 %21, label %22, label %39

22:                                               ; preds = %18
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds i8, ptr %23, i64 %25
  %27 = load i8, ptr %26, align 1, !tbaa !13
  %28 = sext i8 %27 to i32
  %29 = load i32, ptr %6, align 4, !tbaa !9
  %30 = icmp eq i32 %28, %29
  br i1 %30, label %31, label %36

31:                                               ; preds = %22
  %32 = load ptr, ptr %8, align 8, !tbaa !5
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds i8, ptr %32, i64 %34
  store ptr %35, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %40

36:                                               ; preds = %22
  %37 = load i32, ptr %9, align 4, !tbaa !9
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %9, align 4, !tbaa !9
  br label %18, !llvm.loop !14

39:                                               ; preds = %18
  store ptr null, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %40

40:                                               ; preds = %39, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %41 = load ptr, ptr %4, align 8
  ret ptr %41
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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(argmem: read) uwtable
define dso_local ptr @ft_memchr(ptr noundef readonly %0, i32 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %1, 255
  %5 = and i32 %1, 255
  %spec.select = select i1 %4, i32 %5, i32 %1
  %.not16 = icmp eq i64 %2, 0
  br i1 %.not16, label %.split.loop.exit, label %.lr.ph

6:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %7 = add i64 %.in, -1
  %.not = icmp eq i64 %7, 0
  br i1 %.not, label %.split.loop.exit, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %3, %6
  %indvars.iv = phi i64 [ %indvars.iv.next, %6 ], [ 0, %3 ]
  %.in = phi i64 [ %7, %6 ], [ %2, %3 ]
  %8 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv
  %9 = load i8, ptr %8, align 1, !tbaa !7
  %10 = sext i8 %9 to i32
  %11 = icmp eq i32 %spec.select, %10
  br i1 %11, label %.split.loop.exit.loopexit.split.loop.exit, label %6

.split.loop.exit.loopexit.split.loop.exit:        ; preds = %.lr.ph
  %12 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv
  br label %.split.loop.exit

.split.loop.exit:                                 ; preds = %6, %.split.loop.exit.loopexit.split.loop.exit, %3
  %.010 = phi ptr [ null, %3 ], [ %12, %.split.loop.exit.loopexit.split.loop.exit ], [ null, %6 ]
  ret ptr %.010
}

attributes #0 = { nofree norecurse nosync nounwind 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


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