; LLVM IR from JonathanSalwan/Triton :: src/stubs (triton-stubs)

; 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 ptr @strncat(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %8, ptr %7, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %14, %3
  %10 = load ptr, ptr %7, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i32 1
  store ptr %11, ptr %7, align 8, !tbaa !5
  %12 = load i8, ptr %10, align 1, !tbaa !11
  %13 = icmp ne i8 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %9
  br label %9, !llvm.loop !12

15:                                               ; preds = %9
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %16, i32 -1
  store ptr %17, ptr %7, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %30, %15
  %19 = load i64, ptr %6, align 8, !tbaa !9
  %20 = icmp ne i64 %19, 0
  br i1 %20, label %21, label %28

21:                                               ; preds = %18
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %22, i32 1
  store ptr %23, ptr %5, align 8, !tbaa !5
  %24 = load i8, ptr %22, align 1, !tbaa !11
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  store i8 %24, ptr %25, align 1, !tbaa !11
  %26 = sext i8 %24 to i32
  %27 = icmp ne i32 %26, 0
  br label %28

28:                                               ; preds = %21, %18
  %29 = phi i1 [ false, %18 ], [ %27, %21 ]
  br i1 %29, label %30, label %35

30:                                               ; preds = %28
  %31 = load i64, ptr %6, align 8, !tbaa !9
  %32 = add i64 %31, -1
  store i64 %32, ptr %6, align 8, !tbaa !9
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %33, i32 1
  store ptr %34, ptr %7, align 8, !tbaa !5
  br label %18, !llvm.loop !14

35:                                               ; preds = %28
  %36 = load ptr, ptr %7, align 8, !tbaa !5
  store i8 0, ptr %36, align 1, !tbaa !11
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  ret ptr %37
}

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 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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(readwrite, inaccessiblemem: none) uwtable
define dso_local noundef ptr @strncat(ptr noundef returned %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  br label %4

4:                                                ; preds = %4, %3
  %.0 = phi ptr [ %0, %3 ], [ %5, %4 ]
  %5 = getelementptr inbounds i8, ptr %.0, i64 1
  %6 = load i8, ptr %.0, align 1, !tbaa !5
  %.not = icmp eq i8 %6, 0
  br i1 %.not, label %.preheader, label %4, !llvm.loop !8

.preheader:                                       ; preds = %4
  %.not1113 = icmp eq i64 %2, 0
  br i1 %.not1113, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %8
  %.116 = phi ptr [ %11, %8 ], [ %.0, %.preheader ]
  %.0915 = phi i64 [ %10, %8 ], [ %2, %.preheader ]
  %.01014 = phi ptr [ %9, %8 ], [ %1, %.preheader ]
  %7 = load i8, ptr %.01014, align 1, !tbaa !5
  store i8 %7, ptr %.116, align 1, !tbaa !5
  %.not12 = icmp eq i8 %7, 0
  br i1 %.not12, label %.critedge, label %8

8:                                                ; preds = %.lr.ph
  %9 = getelementptr inbounds i8, ptr %.01014, i64 1
  %10 = add i64 %.0915, -1
  %11 = getelementptr inbounds i8, ptr %.116, i64 1
  %.not11 = icmp eq i64 %10, 0
  br i1 %.not11, label %.critedge, label %.lr.ph, !llvm.loop !10

.critedge:                                        ; preds = %.lr.ph, %8, %.preheader
  %.1.lcssa = phi ptr [ %.0, %.preheader ], [ %11, %8 ], [ %.116, %.lr.ph ]
  store i8 0, ptr %.1.lcssa, align 1, !tbaa !5
  ret ptr %0
}

attributes #0 = { nofree norecurse nosync nounwind memory(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 = distinct !{!10, !9}


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