; LLVM IR from t-dillon/tdoku :: src/grid_tools.ll (Z10CountGridsii)

; 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.1 = external hidden unnamed_addr constant [7 x i8], align 1

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

declare void @GetPattern(i32 noundef, ptr noundef) #1

declare i32 @printf(ptr 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 void @_Z10CountGridsii(i32 noundef %0, i32 noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca [82 x i8], align 16
  %6 = alloca [82 x i8], align 16
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 82, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 82, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %10 = load i32, ptr %3, align 4, !tbaa !5
  store i32 %10, ptr %8, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %28, %2
  %12 = load i32, ptr %8, align 4, !tbaa !5
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = add nsw i32 %13, %14
  %16 = icmp slt i32 %12, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %31

18:                                               ; preds = %11
  %19 = load i32, ptr %8, align 4, !tbaa !5
  %20 = getelementptr inbounds [82 x i8], ptr %5, i64 0, i64 0
  call void @GetPattern(i32 noundef %19, ptr noundef %20)
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %21 = getelementptr inbounds [82 x i8], ptr %5, i64 0, i64 0
  %22 = getelementptr inbounds [82 x i8], ptr %6, i64 0, i64 0
  %23 = call noundef i64 @_ZL11SolveSudokuPKcmjPcPm(ptr noundef %21, i64 noundef 100000, i32 noundef 0, ptr noundef %22, ptr noundef %7)
  %24 = trunc i64 %23 to i32
  store i32 %24, ptr %9, align 4, !tbaa !5
  %25 = load i32, ptr %8, align 4, !tbaa !5
  %26 = load i32, ptr %9, align 4, !tbaa !5
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %25, i32 noundef %26)
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %28

28:                                               ; preds = %18
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %8, align 4, !tbaa !5
  br label %11, !llvm.loop !9

31:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 82, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 82, ptr %5) #4
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare hidden noundef i64 @_ZL11SolveSudokuPKcmjPcPm(ptr noundef, i64 noundef, i32 noundef, ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { inlinehint 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 #4 = { 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"}


; 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.1 = external hidden unnamed_addr constant [7 x i8], align 1

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

declare void @GetPattern(i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress 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 void @_Z10CountGridsii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = alloca [82 x i8], align 16
  %4 = alloca [82 x i8], align 16
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 82, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 82, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %6 = add nsw i32 %1, %0
  %7 = icmp sgt i32 %1, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 82, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 82, ptr nonnull %3) #5
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.08 = phi i32 [ %11, %.lr.ph ], [ %0, %2 ]
  call void @GetPattern(i32 noundef %.08, ptr noundef nonnull %3)
  %8 = call noundef i64 @_ZL11SolveSudokuPKcmjPcPm(ptr noundef nonnull %3, i64 noundef 100000, i32 noundef 0, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %9 = trunc i64 %8 to i32
  %10 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %.08, i32 noundef %9)
  %11 = add nsw i32 %.08, 1
  %12 = icmp slt i32 %11, %6
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

; Function Attrs: inlinehint mustprogress uwtable
declare hidden noundef i64 @_ZL11SolveSudokuPKcmjPcPm(ptr noundef, i64 noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #4

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { nofree 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 #3 = { 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 #4 = { inlinehint 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 #5 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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