; LLVM IR from AdrianWR/push_swap :: libft/src (ft_strncmp)

; 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 i32 @ft_strncmp(ptr noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  %8 = load i64, ptr %7, align 8, !tbaa !9
  %9 = icmp ne i64 %8, 0
  br i1 %9, label %11, label %10

10:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %40

11:                                               ; preds = %3
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = load i8, ptr %12, align 1, !tbaa !11
  %14 = sext i8 %13 to i32
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load i8, ptr %15, align 1, !tbaa !11
  %17 = sext i8 %16 to i32
  %18 = icmp ne i32 %14, %17
  br i1 %18, label %23, label %19

19:                                               ; preds = %11
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load i8, ptr %20, align 1, !tbaa !11
  %22 = icmp ne i8 %21, 0
  br i1 %22, label %31, label %23

23:                                               ; preds = %19, %11
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load i8, ptr %24, align 1, !tbaa !11
  %26 = zext i8 %25 to i32
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load i8, ptr %27, align 1, !tbaa !11
  %29 = zext i8 %28 to i32
  %30 = sub nsw i32 %26, %29
  store i32 %30, ptr %4, align 4
  br label %40

31:                                               ; preds = %19
  br label %32

32:                                               ; preds = %31
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %33, i32 1
  store ptr %34, ptr %5, align 8, !tbaa !5
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %35, i32 1
  store ptr %36, ptr %6, align 8, !tbaa !5
  %37 = load i64, ptr %7, align 8, !tbaa !9
  %38 = add i64 %37, -1
  store i64 %38, ptr %7, align 8, !tbaa !9
  %39 = call i32 @ft_strncmp(ptr noundef %34, ptr noundef %36, i64 noundef %38)
  store i32 %39, ptr %4, align 4
  br label %40

40:                                               ; preds = %32, %23, %10
  %41 = load i32, ptr %4, align 4
  ret i32 %41
}

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" }

!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 = !{!7, !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: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local range(i32 -255, 256) i32 @ft_strncmp(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %.not15 = icmp eq i64 %2, 0
  br i1 %.not15, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %3, %tailrecurse
  %.tr1318 = phi i64 [ %12, %tailrecurse ], [ %2, %3 ]
  %.tr1217 = phi ptr [ %11, %tailrecurse ], [ %1, %3 ]
  %.tr16 = phi ptr [ %10, %tailrecurse ], [ %0, %3 ]
  %4 = load i8, ptr %.tr16, align 1, !tbaa !5
  %5 = load i8, ptr %.tr1217, align 1, !tbaa !5
  %.not10 = icmp ne i8 %4, %5
  %.not11 = icmp eq i8 %4, 0
  %or.cond = or i1 %.not11, %.not10
  br i1 %or.cond, label %6, label %tailrecurse

6:                                                ; preds = %.lr.ph
  %7 = zext i8 %4 to i32
  %8 = zext i8 %5 to i32
  %9 = sub nsw i32 %7, %8
  br label %.loopexit

tailrecurse:                                      ; preds = %.lr.ph
  %10 = getelementptr inbounds i8, ptr %.tr16, i64 1
  %11 = getelementptr inbounds i8, ptr %.tr1217, i64 1
  %12 = add i64 %.tr1318, -1
  %.not = icmp eq i64 %12, 0
  br i1 %.not, label %.loopexit, label %.lr.ph

.loopexit:                                        ; preds = %tailrecurse, %3, %6
  %.0 = phi i32 [ %9, %6 ], [ 0, %3 ], [ 0, %tailrecurse ]
  ret i32 %.0
}

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 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


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