; LLVM IR from tangjz/acm-icpc :: Summer_Training/2016-07-17/I - Query - tjz.ll (Z5queryiiii)

; 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"

@seg = external dso_local global [2000002 x i32], align 16
@s = external dso_local global [1000001 x i8], align 16
@t = external dso_local global [1000001 x i8], align 16

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7seg_idxii(i32 noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5queryiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #2 {
  %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
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !5
  %17 = call noundef i32 @_Z7seg_idxii(i32 noundef %15, i32 noundef %16)
  store i32 %17, ptr %10, align 4, !tbaa !5
  %18 = load i32, ptr %6, align 4, !tbaa !5
  %19 = load i32, ptr %7, align 4, !tbaa !5
  %20 = icmp eq i32 %18, %19
  br i1 %20, label %21, label %23

21:                                               ; preds = %4
  %22 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %22, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %80

23:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = add nsw i32 %24, %25
  %27 = ashr i32 %26, 1
  store i32 %27, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %28 = load i32, ptr %6, align 4, !tbaa !5
  %29 = load i32, ptr %12, align 4, !tbaa !5
  %30 = call noundef i32 @_Z7seg_idxii(i32 noundef %28, i32 noundef %29)
  store i32 %30, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %31 = load i32, ptr %12, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = call noundef i32 @_Z7seg_idxii(i32 noundef %32, i32 noundef %33)
  store i32 %34, ptr %14, align 4, !tbaa !5
  %35 = load i32, ptr %8, align 4, !tbaa !5
  %36 = load i32, ptr %12, align 4, !tbaa !5
  %37 = add nsw i32 %35, %36
  %38 = add nsw i32 %37, 1
  %39 = load i32, ptr %9, align 4, !tbaa !5
  %40 = load i32, ptr %13, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [2000002 x i32], ptr @seg, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = add nsw i32 %39, %43
  %45 = load i32, ptr %12, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [1000001 x i8], ptr @s, i64 0, i64 %47
  %49 = load i8, ptr %48, align 1, !tbaa !9
  %50 = sext i8 %49 to i32
  %51 = load i32, ptr %12, align 4, !tbaa !5
  %52 = add nsw i32 %51, 1
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [1000001 x i8], ptr @t, i64 0, i64 %53
  %55 = load i8, ptr %54, align 1, !tbaa !9
  %56 = sext i8 %55 to i32
  %57 = icmp eq i32 %50, %56
  %58 = zext i1 %57 to i32
  %59 = add nsw i32 %44, %58
  %60 = icmp sgt i32 %38, %59
  br i1 %60, label %61, label %67

61:                                               ; preds = %23
  %62 = load i32, ptr %6, align 4, !tbaa !5
  %63 = load i32, ptr %12, align 4, !tbaa !5
  %64 = load i32, ptr %8, align 4, !tbaa !5
  %65 = load i32, ptr %9, align 4, !tbaa !5
  %66 = call noundef i32 @_Z5queryiiii(i32 noundef %62, i32 noundef %63, i32 noundef %64, i32 noundef %65)
  store i32 %66, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %79

67:                                               ; preds = %23
  %68 = load i32, ptr %12, align 4, !tbaa !5
  %69 = add nsw i32 %68, 1
  %70 = load i32, ptr %7, align 4, !tbaa !5
  %71 = load i32, ptr %8, align 4, !tbaa !5
  %72 = load i32, ptr %9, align 4, !tbaa !5
  %73 = load i32, ptr %13, align 4, !tbaa !5
  %74 = sext i32 %73 to i64
  %75 = getelementptr inbounds [2000002 x i32], ptr @seg, i64 0, i64 %74
  %76 = load i32, ptr %75, align 4, !tbaa !5
  %77 = add nsw i32 %72, %76
  %78 = call noundef i32 @_Z5queryiiii(i32 noundef %69, i32 noundef %70, i32 noundef %71, i32 noundef %77)
  store i32 %78, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %79

79:                                               ; preds = %67, %61
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %80

80:                                               ; preds = %79, %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %81 = load i32, ptr %5, align 4
  ret i32 %81
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 #2 = { mustprogress 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 #3 = { 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 = !{!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"

@seg = external dso_local local_unnamed_addr global [2000002 x i32], align 16
@s = external dso_local local_unnamed_addr global [1000001 x i8], align 16
@t = external dso_local local_unnamed_addr global [1000001 x i8], align 16

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7seg_idxii(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5queryiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #1 {
  %5 = tail call noundef i32 @_Z7seg_idxii(i32 noundef %0, i32 noundef %1)
  %6 = icmp eq i32 %0, %1
  br i1 %6, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %4, %tailrecurse
  %.tr3235 = phi i32 [ %..tr32, %tailrecurse ], [ %3, %4 ]
  %.tr3034 = phi i32 [ %.tr30., %tailrecurse ], [ %1, %4 ]
  %.tr33 = phi i32 [ %..tr, %tailrecurse ], [ %0, %4 ]
  %7 = add nsw i32 %.tr3034, %.tr33
  %8 = ashr i32 %7, 1
  %9 = tail call noundef i32 @_Z7seg_idxii(i32 noundef %.tr33, i32 noundef %8)
  %10 = add nsw i32 %8, 1
  %11 = tail call noundef i32 @_Z7seg_idxii(i32 noundef %10, i32 noundef %.tr3034)
  %12 = add nsw i32 %8, %2
  %13 = sext i32 %9 to i64
  %14 = getelementptr inbounds [2000002 x i32], ptr @seg, i64 0, i64 %13
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = add nsw i32 %15, %.tr3235
  %17 = sext i32 %10 to i64
  %18 = getelementptr inbounds [1000001 x i8], ptr @s, i64 0, i64 %17
  %19 = load i8, ptr %18, align 1, !tbaa !9
  %20 = getelementptr inbounds [1000001 x i8], ptr @t, i64 0, i64 %17
  %21 = load i8, ptr %20, align 1, !tbaa !9
  %22 = icmp eq i8 %19, %21
  %23 = zext i1 %22 to i32
  %24 = add nsw i32 %16, %23
  %.not = icmp slt i32 %12, %24
  %..tr = select i1 %.not, i32 %10, i32 %.tr33
  %.tr30. = select i1 %.not, i32 %.tr3034, i32 %8
  %..tr32 = select i1 %.not, i32 %16, i32 %.tr3235
  %25 = tail call noundef i32 @_Z7seg_idxii(i32 noundef %..tr, i32 noundef %.tr30.)
  %26 = icmp eq i32 %..tr, %.tr30.
  br i1 %26, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %4
  %.tr.lcssa = phi i32 [ %0, %4 ], [ %..tr, %tailrecurse ]
  ret i32 %.tr.lcssa
}

attributes #0 = { inlinehint 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}


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