; LLVM IR from xirc/cp-algorithm :: atcoder/abc153/D/main.ll (Z5solvel)

; 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__._Z5solvel = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z5solvel(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %5 = icmp sgt i64 %4, 0
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  br label %9

7:                                                ; preds = %1
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 8, ptr noundef @__PRETTY_FUNCTION__._Z5solvel) #2
  unreachable

8:                                                ; No predecessors!
  br label %9

9:                                                ; preds = %8, %6
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = icmp eq i64 %10, 1
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  store i64 1, ptr %2, align 8
  br label %19

13:                                               ; preds = %9
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = sdiv i64 %14, 2
  %16 = call noundef i64 @_Z5solvel(i64 noundef %15)
  %17 = mul nsw i64 2, %16
  %18 = add nsw i64 1, %17
  store i64 %18, ptr %2, align 8
  br label %19

19:                                               ; preds = %13, %12
  %20 = load i64, ptr %2, align 8
  ret i64 %20
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

attributes #0 = { 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 #1 = { noreturn nounwind "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 = { noreturn 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__._Z5solvel = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_Z5solvel(i64 noundef %0) local_unnamed_addr #0 {
  %2 = icmp sgt i64 %0, 0
  br i1 %2, label %4, label %3

3:                                                ; preds = %1
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 8, ptr noundef nonnull @__PRETTY_FUNCTION__._Z5solvel) #2
  unreachable

4:                                                ; preds = %1
  %5 = icmp eq i64 %0, 1
  br i1 %5, label %common.ret5, label %6

common.ret5:                                      ; preds = %4, %6
  %common.ret5.op = phi i64 [ %10, %6 ], [ 1, %4 ]
  ret i64 %common.ret5.op

6:                                                ; preds = %4
  %7 = lshr i64 %0, 1
  %8 = tail call noundef i64 @_Z5solvel(i64 noundef %7)
  %9 = shl nsw i64 %8, 1
  %10 = or disjoint i64 %9, 1
  br label %common.ret5
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #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 = { noreturn nounwind "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 = { noreturn 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)"}


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