; LLVM IR from clbx/Cosmic :: src/cosproc.ll (ZN7cosproc3DIVEt)

; 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"

%class.cosproc = type { ptr, ptr, i16, i16, [8 x i8], [8 x i8], [257 x %"struct.cosproc::Instruction"] }
%"struct.cosproc::Instruction" = type { { i64, i64 }, { i64, i64 }, ptr, 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 void @_ZN7cosproc3DIVEt(ptr noundef nonnull align 8 dereferenceable(12376) %0, i16 noundef zeroext %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i16, align 2
  %5 = alloca i8, align 1
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i16 %1, ptr %4, align 2, !tbaa !9
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  %9 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 1
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = load i16, ptr %4, align 2, !tbaa !9
  %12 = call noundef zeroext i8 %10(i16 noundef zeroext %11)
  store i8 %12, ptr %5, align 1, !tbaa !13
  %13 = load i8, ptr %5, align 1, !tbaa !13
  %14 = icmp ne i8 %13, 0
  br i1 %14, label %18, label %15

15:                                               ; preds = %2
  %16 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 5
  %17 = getelementptr inbounds [8 x i8], ptr %16, i64 0, i64 6
  store i8 1, ptr %17, align 2, !tbaa !14
  store i32 1, ptr %6, align 4
  br label %65

18:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %19 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 4
  %20 = getelementptr inbounds [8 x i8], ptr %19, i64 0, i64 0
  %21 = load i8, ptr %20, align 4, !tbaa !13
  %22 = zext i8 %21 to i32
  %23 = load i8, ptr %5, align 1, !tbaa !13
  %24 = zext i8 %23 to i32
  %25 = sdiv i32 %22, %24
  store i32 %25, ptr %7, align 4, !tbaa !16
  %26 = load i32, ptr %7, align 4, !tbaa !16
  %27 = icmp uge i32 %26, 128
  %28 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 5
  %29 = getelementptr inbounds [8 x i8], ptr %28, i64 0, i64 1
  %30 = zext i1 %27 to i8
  store i8 %30, ptr %29, align 1, !tbaa !14
  %31 = load i32, ptr %7, align 4, !tbaa !16
  %32 = icmp ugt i32 %31, 255
  %33 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 5
  %34 = getelementptr inbounds [8 x i8], ptr %33, i64 0, i64 2
  %35 = zext i1 %32 to i8
  store i8 %35, ptr %34, align 2, !tbaa !14
  %36 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 4
  %37 = getelementptr inbounds [8 x i8], ptr %36, i64 0, i64 0
  %38 = load i8, ptr %37, align 4, !tbaa !13
  %39 = zext i8 %38 to i32
  %40 = load i32, ptr %7, align 4, !tbaa !16
  %41 = xor i32 %39, %40
  %42 = load i8, ptr %5, align 1, !tbaa !13
  %43 = zext i8 %42 to i32
  %44 = load i32, ptr %7, align 4, !tbaa !16
  %45 = xor i32 %43, %44
  %46 = and i32 %41, %45
  %47 = and i32 %46, 128
  %48 = icmp ne i32 %47, 0
  %49 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 5
  %50 = getelementptr inbounds [8 x i8], ptr %49, i64 0, i64 3
  %51 = zext i1 %48 to i8
  store i8 %51, ptr %50, align 1, !tbaa !14
  %52 = load i32, ptr %7, align 4, !tbaa !16
  %53 = and i32 %52, 255
  %54 = trunc i32 %53 to i8
  %55 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 4
  %56 = getelementptr inbounds [8 x i8], ptr %55, i64 0, i64 0
  store i8 %54, ptr %56, align 4, !tbaa !13
  %57 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 4
  %58 = getelementptr inbounds [8 x i8], ptr %57, i64 0, i64 0
  %59 = load i8, ptr %58, align 4, !tbaa !13
  %60 = zext i8 %59 to i32
  %61 = icmp eq i32 %60, 0
  %62 = getelementptr inbounds %class.cosproc, ptr %8, i32 0, i32 5
  %63 = getelementptr inbounds [8 x i8], ptr %62, i64 0, i64 0
  %64 = zext i1 %61 to i8
  store i8 %64, ptr %63, align 4, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  store i32 0, ptr %6, align 4
  br label %65

65:                                               ; preds = %18, %15
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  %66 = load i32, ptr %6, align 4
  switch i32 %66, label %68 [
    i32 0, label %67
    i32 1, label %67
  ]

67:                                               ; preds = %65, %65
  ret void

68:                                               ; preds = %65
  unreachable
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"short", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTS7cosproc", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 18, !7, i64 20, !7, i64 28, !7, i64 40}
!13 = !{!7, !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"bool", !7, i64 0}
!16 = !{!17, !17, i64 0}
!17 = !{!"int", !7, 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 void @_ZN7cosproc3DIVEt(ptr nocapture noundef nonnull align 8 dereferenceable(12376) %0, i16 noundef zeroext %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = tail call noundef zeroext i8 %4(i16 noundef zeroext %1)
  %.not = icmp eq i8 %5, 0
  br i1 %.not, label %6, label %8

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %0, i64 34
  store i8 1, ptr %7, align 2, !tbaa !11
  br label %21

8:                                                ; preds = %2
  %9 = getelementptr inbounds i8, ptr %0, i64 20
  %10 = load i8, ptr %9, align 4, !tbaa !13
  %11 = udiv i8 %10, %5
  %12 = getelementptr inbounds i8, ptr %0, i64 28
  %13 = getelementptr inbounds i8, ptr %0, i64 29
  %.lobit = lshr i8 %11, 7
  store i8 %.lobit, ptr %13, align 1, !tbaa !11
  %14 = getelementptr inbounds i8, ptr %0, i64 30
  store i8 0, ptr %14, align 2, !tbaa !11
  %15 = xor i8 %11, %10
  %16 = xor i8 %11, %5
  %17 = and i8 %15, %16
  %18 = getelementptr inbounds i8, ptr %0, i64 31
  %.lobit9 = lshr i8 %17, 7
  store i8 %.lobit9, ptr %18, align 1, !tbaa !11
  store i8 %11, ptr %9, align 4, !tbaa !13
  %19 = icmp ugt i8 %5, %10
  %20 = zext i1 %19 to i8
  store i8 %20, ptr %12, align 4, !tbaa !11
  br label %21

21:                                               ; preds = %8, %6
  ret void
}

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 8}
!6 = !{!"_ZTS7cosproc", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 18, !8, i64 20, !8, i64 28, !8, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !8, i64 0}
!13 = !{!8, !8, i64 0}


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