; LLVM IR from BrunoLevy/learn-fpga :: FemtoRV/FIRMWARE/TOOLS/FONT (make_font3x5)

; 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"

@font_data = external dso_local global [255 x i32], align 16
@.str.2 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [16 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 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: nounwind uwtable
declare dso_local i32 @get_font_column(i32 noundef, i32 noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %7 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %34, %0
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp slt i32 %11, 96
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  br label %37

14:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = call i32 @get_font_column(i32 noundef %15, i32 noundef 0)
  store i32 %16, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = call i32 @get_font_column(i32 noundef %17, i32 noundef 1)
  store i32 %18, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = call i32 @get_font_column(i32 noundef %19, i32 noundef 2)
  store i32 %20, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = shl i32 %22, 5
  %24 = or i32 %21, %23
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = shl i32 %25, 10
  %27 = or i32 %24, %26
  store i32 %27, ptr %6, align 4, !tbaa !5
  %28 = load i32, ptr %6, align 4, !tbaa !5
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.5, i32 noundef %28)
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [255 x i32], ptr @font_data, i64 0, i64 %32
  store i32 %30, ptr %33, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %34

34:                                               ; preds = %14
  %35 = load i32, ptr %2, align 4, !tbaa !5
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %2, align 4, !tbaa !5
  br label %10, !llvm.loop !9

37:                                               ; preds = %13
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  %39 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  %40 = load i32, ptr %1, align 4
  ret i32 %40
}

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 = { 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 #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/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"

@font_data = external dso_local local_unnamed_addr global [255 x i32], align 16
@.str.2 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [16 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @get_font_column(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  br label %7

4:                                                ; preds = %7
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  ret i32 0

7:                                                ; preds = %0, %7
  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %7 ]
  %8 = trunc nuw nsw i64 %indvars.iv to i32
  %9 = tail call i32 @get_font_column(i32 noundef %8, i32 noundef 0)
  %10 = tail call i32 @get_font_column(i32 noundef %8, i32 noundef 1)
  %11 = tail call i32 @get_font_column(i32 noundef %8, i32 noundef 2)
  %12 = shl i32 %10, 5
  %13 = or i32 %12, %9
  %14 = shl i32 %11, 10
  %15 = or i32 %13, %14
  %16 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5, i32 noundef %15)
  %17 = getelementptr inbounds [255 x i32], ptr @font_data, i64 0, i64 %indvars.iv
  store i32 %15, ptr %17, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, 96
  br i1 %exitcond.not, label %4, label %7, !llvm.loop !9
}

attributes #0 = { 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 #1 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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