; LLVM IR from fritzsedlazeck/SURVIVOR :: src/Extract_Seq.ll (Z12check_coordsRiii)

; 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: mustprogress nounwind uwtable
define dso_local void @_Z12check_coordsRiii(ptr noundef nonnull align 4 dereferenceable(4) %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 0
  br i1 %9, label %10, label %12

10:                                               ; preds = %3
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %10, %3
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = add nsw i32 %14, %15
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = icmp sgt i32 %16, %17
  br i1 %18, label %19, label %25

19:                                               ; preds = %12
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = load i32, ptr %5, align 4, !tbaa !9
  %22 = sub nsw i32 %20, %21
  %23 = sub nsw i32 %22, 1
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  store i32 %23, ptr %24, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %19, %12
  ret void
}

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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 nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @_Z12check_coordsRiii(ptr nocapture noundef nonnull align 4 dereferenceable(4) %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = load i32, ptr %0, align 4, !tbaa !5
  %5 = icmp slt i32 %4, 0
  %6 = tail call i32 @llvm.smax.i32(i32 %4, i32 0)
  %7 = add nsw i32 %6, %1
  %.not = icmp sgt i32 %7, %2
  %8 = or i1 %5, %.not
  br i1 %8, label %9, label %12

9:                                                ; preds = %3
  %10 = xor i32 %1, -1
  %11 = add i32 %10, %2
  %simplifycfg.merge = select i1 %.not, i32 %11, i32 %6
  store i32 %simplifycfg.merge, ptr %0, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %3, %9
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 speculatable willreturn memory(none) }

!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++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass