; LLVM IR from fhanau/Efficient-Compression-Tool :: src/lodepng/lodepng.ll (Z20lodepng_get_raw_sizejjPK16LodePNGColorMode)

; 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"

%struct.LodePNGColorMode = type { i32, i32, ptr, i64, i32, i32, i32, i32 }

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

; 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 i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef %0, i32 noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  %10 = getelementptr inbounds %struct.LodePNGColorMode, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !11
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.LodePNGColorMode, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 4, !tbaa !15
  %15 = call noundef i32 @_ZL19lodepng_get_bpp_lct16LodePNGColorTypej(i32 noundef %11, i32 noundef %14)
  %16 = zext i32 %15 to i64
  store i64 %16, ptr %7, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = zext i32 %17 to i64
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = zext i32 %19 to i64
  %21 = mul i64 %18, %20
  store i64 %21, ptr %8, align 8, !tbaa !16
  %22 = load i64, ptr %8, align 8, !tbaa !16
  %23 = udiv i64 %22, 8
  %24 = load i64, ptr %7, align 8, !tbaa !16
  %25 = mul i64 %23, %24
  %26 = load i64, ptr %8, align 8, !tbaa !16
  %27 = and i64 %26, 7
  %28 = load i64, ptr %7, align 8, !tbaa !16
  %29 = mul i64 %27, %28
  %30 = add i64 %29, 7
  %31 = udiv i64 %30, 8
  %32 = add i64 %25, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  ret i64 %32
}

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL19lodepng_get_bpp_lct16LodePNGColorTypej(i32 noundef, i32 noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTS16LodePNGColorMode", !13, i64 0, !6, i64 4, !10, i64 8, !14, i64 16, !6, i64 24, !6, i64 28, !6, i64 32, !6, i64 36}
!13 = !{!"_ZTS16LodePNGColorType", !7, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!12, !6, i64 4}
!16 = !{!14, !14, 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"

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef %0, i32 noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = load i32, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %2, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !13
  %7 = tail call noundef i32 @_ZL19lodepng_get_bpp_lct16LodePNGColorTypej(i32 noundef %4, i32 noundef %6)
  %8 = zext i32 %7 to i64
  %9 = zext i32 %0 to i64
  %10 = zext i32 %1 to i64
  %11 = mul nuw i64 %10, %9
  %12 = lshr i64 %11, 3
  %13 = mul i64 %12, %8
  %14 = and i64 %11, 7
  %15 = mul nuw nsw i64 %14, %8
  %16 = add nuw nsw i64 %15, 7
  %17 = lshr i64 %16, 3
  %18 = add i64 %17, %13
  ret i64 %18
}

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL19lodepng_get_bpp_lct16LodePNGColorTypej(i32 noundef, i32 noundef) local_unnamed_addr #0

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" }

!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, !7, i64 0}
!6 = !{!"_ZTS16LodePNGColorMode", !7, i64 0, !10, i64 4, !11, i64 8, !12, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36}
!7 = !{!"_ZTS16LodePNGColorType", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"long", !8, i64 0}
!13 = !{!6, !10, i64 4}


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