; LLVM IR from chachaxw/data-structure-and-algorithm :: leetcode/binary_search/search_matrix.ll (Z13searchMatrix1St6vectorIS_IiSaIiEESaIS1_EEi)

; 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 noundef zeroext i1 @_Z13searchMatrix1St6vectorIS_IiSaIiEESaIS1_EEi(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %12 = call noundef zeroext i1 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  br i1 %12, label %16, label %13

13:                                               ; preds = %2
  %14 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #2
  %15 = call noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #2
  br i1 %15, label %16, label %17

16:                                               ; preds = %13, %2
  store i1 false, ptr %3, align 1
  br label %73

17:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %18 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %19 = trunc i64 %18 to i32
  store i32 %19, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %20 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #2
  %21 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %20) #2
  %22 = trunc i64 %21 to i32
  store i32 %22, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 -1, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %23 = load i32, ptr %6, align 4, !tbaa !9
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = mul nsw i32 %23, %24
  store i32 %25, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  br label %26

26:                                               ; preds = %70, %17
  %27 = load i32, ptr %8, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  %29 = load i32, ptr %9, align 4, !tbaa !9
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %31, label %71

31:                                               ; preds = %26
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = load i32, ptr %8, align 4, !tbaa !9
  %35 = sub nsw i32 %33, %34
  %36 = sdiv i32 %35, 2
  %37 = add nsw i32 %32, %36
  store i32 %37, ptr %10, align 4, !tbaa !9
  %38 = load i32, ptr %10, align 4, !tbaa !9
  %39 = load i32, ptr %7, align 4, !tbaa !9
  %40 = sdiv i32 %38, %39
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %41) #2
  %43 = load i32, ptr %10, align 4, !tbaa !9
  %44 = load i32, ptr %7, align 4, !tbaa !9
  %45 = srem i32 %43, %44
  %46 = sext i32 %45 to i64
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %42, i64 noundef %46) #2
  %48 = load i32, ptr %47, align 4, !tbaa !9
  %49 = load i32, ptr %5, align 4, !tbaa !9
  %50 = icmp slt i32 %48, %49
  br i1 %50, label %51, label %53

51:                                               ; preds = %31
  %52 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %52, ptr %8, align 4, !tbaa !9
  br label %70

53:                                               ; preds = %31
  %54 = load i32, ptr %10, align 4, !tbaa !9
  %55 = load i32, ptr %7, align 4, !tbaa !9
  %56 = sdiv i32 %54, %55
  %57 = sext i32 %56 to i64
  %58 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %57) #2
  %59 = load i32, ptr %10, align 4, !tbaa !9
  %60 = load i32, ptr %7, align 4, !tbaa !9
  %61 = srem i32 %59, %60
  %62 = sext i32 %61 to i64
  %63 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %58, i64 noundef %62) #2
  %64 = load i32, ptr %63, align 4, !tbaa !9
  %65 = load i32, ptr %5, align 4, !tbaa !9
  %66 = icmp eq i32 %64, %65
  br i1 %66, label %67, label %68

67:                                               ; preds = %53
  store i1 true, ptr %3, align 1
  store i32 1, ptr %11, align 4
  br label %72

68:                                               ; preds = %53
  %69 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %69, ptr %9, align 4, !tbaa !9
  br label %70

70:                                               ; preds = %68, %51
  br label %26, !llvm.loop !11

71:                                               ; preds = %26
  store i1 false, ptr %3, align 1
  store i32 1, ptr %11, align 4
  br label %72

72:                                               ; preds = %71, %67
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %73

73:                                               ; preds = %72, %16
  %74 = load i1, ptr %3, align 1
  ret i1 %74
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

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

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" }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z13searchMatrix1St6vectorIS_IiSaIiEESaIS1_EEi(ptr noundef nonnull %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call noundef zeroext i1 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  br i1 %3, label %.loopexit, label %4

4:                                                ; preds = %2
  %5 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #1
  %6 = tail call noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #1
  br i1 %6, label %.loopexit, label %7

7:                                                ; preds = %4
  %8 = tail call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  %9 = trunc i64 %8 to i32
  %10 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #1
  %11 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #1
  %12 = trunc i64 %11 to i32
  %13 = mul nsw i32 %12, %9
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %7, %31
  %.01925 = phi i32 [ %.120, %31 ], [ %13, %7 ]
  %.02124 = phi i32 [ %.122, %31 ], [ -1, %7 ]
  %15 = sub nsw i32 %.01925, %.02124
  %16 = sdiv i32 %15, 2
  %17 = add nsw i32 %16, %.02124
  %18 = sdiv i32 %17, %12
  %19 = sext i32 %18 to i64
  %20 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %19) #1
  %21 = srem i32 %17, %12
  %22 = sext i32 %21 to i64
  %23 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %20, i64 noundef %22) #1
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = icmp slt i32 %24, %1
  br i1 %25, label %31, label %26

26:                                               ; preds = %.lr.ph
  %27 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %19) #1
  %28 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %27, i64 noundef %22) #1
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = icmp eq i32 %29, %1
  br i1 %30, label %.loopexit, label %31

31:                                               ; preds = %26, %.lr.ph
  %.122 = phi i32 [ %17, %.lr.ph ], [ %.02124, %26 ]
  %.120 = phi i32 [ %.01925, %.lr.ph ], [ %17, %26 ]
  %32 = add nsw i32 %.122, 1
  %33 = icmp slt i32 %32, %.120
  br i1 %33, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %31, %26, %7, %2, %4
  %.1 = phi i1 [ false, %4 ], [ false, %2 ], [ false, %7 ], [ false, %31 ], [ true, %26 ]
  ret i1 %.1
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

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" }
attributes #1 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass