; LLVM IR from casensiom/fast-image-processing :: src (hough)

; 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.SHoughWorkspace = type { i32, i32, double, i32, i32, ptr, i32, i32, ptr, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @reset_workspace_hough(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.SHoughWorkspace, ptr %3, i32 0, i32 5
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.SHoughWorkspace, ptr %6, i32 0, i32 4
  %8 = load i32, ptr %7, align 4, !tbaa !13
  %9 = zext i32 %8 to i64
  %10 = mul i64 4, %9
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.SHoughWorkspace, ptr %11, i32 0, i32 3
  %13 = load i32, ptr %12, align 8, !tbaa !14
  %14 = zext i32 %13 to i64
  %15 = mul i64 %10, %14
  call void @llvm.memset.p0.i64(ptr align 4 %5, i8 0, i64 %15, i1 false)
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.SHoughWorkspace, ptr %16, i32 0, i32 8
  %18 = load ptr, ptr %17, align 8, !tbaa !15
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.SHoughWorkspace, ptr %19, i32 0, i32 4
  %21 = load i32, ptr %20, align 4, !tbaa !13
  %22 = zext i32 %21 to i64
  %23 = mul i64 8, %22
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.SHoughWorkspace, ptr %24, i32 0, i32 3
  %26 = load i32, ptr %25, align 8, !tbaa !14
  %27 = zext i32 %26 to i64
  %28 = mul i64 %23, %27
  call void @llvm.memset.p0.i64(ptr align 4 %18, i8 0, i64 %28, i1 false)
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.SHoughWorkspace, ptr %29, i32 0, i32 9
  store i32 0, ptr %30, align 8, !tbaa !16
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"SHoughWorkspace", !11, i64 0, !11, i64 4, !12, i64 8, !11, i64 16, !11, i64 20, !6, i64 24, !11, i64 32, !11, i64 36, !6, i64 40, !11, i64 48, !6, i64 56, !6, i64 64}
!11 = !{!"int", !7, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!10, !11, i64 20}
!14 = !{!10, !11, i64 16}
!15 = !{!10, !6, i64 40}
!16 = !{!10, !11, i64 48}


; 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 nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local void @reset_workspace_hough(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 20
  %5 = load i32, ptr %4, align 4, !tbaa !12
  %6 = zext i32 %5 to i64
  %7 = shl nuw nsw i64 %6, 2
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  %9 = load i32, ptr %8, align 8, !tbaa !13
  %10 = zext i32 %9 to i64
  %11 = mul i64 %7, %10
  tail call void @llvm.memset.p0.i64(ptr align 4 %3, i8 0, i64 %11, i1 false)
  %12 = getelementptr inbounds i8, ptr %0, i64 40
  %13 = load ptr, ptr %12, align 8, !tbaa !14
  %14 = load i32, ptr %4, align 4, !tbaa !12
  %15 = zext i32 %14 to i64
  %16 = shl nuw nsw i64 %15, 3
  %17 = load i32, ptr %8, align 8, !tbaa !13
  %18 = zext i32 %17 to i64
  %19 = mul i64 %16, %18
  tail call void @llvm.memset.p0.i64(ptr align 4 %13, i8 0, i64 %19, i1 false)
  %20 = getelementptr inbounds i8, ptr %0, i64 48
  store i32 0, ptr %20, align 8, !tbaa !15
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) 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 nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !11, i64 24}
!6 = !{!"SHoughWorkspace", !7, i64 0, !7, i64 4, !10, i64 8, !7, i64 16, !7, i64 20, !11, i64 24, !7, i64 32, !7, i64 36, !11, i64 40, !7, i64 48, !11, i64 56, !11, i64 64}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"double", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !7, i64 20}
!13 = !{!6, !7, i64 16}
!14 = !{!6, !11, i64 40}
!15 = !{!6, !7, i64 48}


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