; LLVM IR from clbx/Cosmic :: src/cosproc.ll (ZN7cosproc4DECREt)

; 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 nounwind uwtable
define dso_local void @_ZN7cosproc4DECREt(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
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i16 %1, ptr %4, align 2, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  %8 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 4
  %9 = load i16, ptr %4, align 2, !tbaa !9
  %10 = zext i16 %9 to i64
  %11 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 %10
  %12 = load i8, ptr %11, align 1, !tbaa !11
  store i8 %12, ptr %5, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %13 = load i8, ptr %5, align 1, !tbaa !11
  %14 = zext i8 %13 to i32
  %15 = sub nsw i32 %14, 1
  store i32 %15, ptr %6, align 4, !tbaa !12
  %16 = load i32, ptr %6, align 4, !tbaa !12
  %17 = icmp uge i32 %16, 128
  %18 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 5
  %19 = getelementptr inbounds [8 x i8], ptr %18, i64 0, i64 1
  %20 = zext i1 %17 to i8
  store i8 %20, ptr %19, align 1, !tbaa !14
  %21 = load i32, ptr %6, align 4, !tbaa !12
  %22 = icmp ugt i32 %21, 255
  %23 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 5
  %24 = getelementptr inbounds [8 x i8], ptr %23, i64 0, i64 2
  %25 = zext i1 %22 to i8
  store i8 %25, ptr %24, align 2, !tbaa !14
  %26 = load i8, ptr %5, align 1, !tbaa !11
  %27 = zext i8 %26 to i32
  %28 = load i32, ptr %6, align 4, !tbaa !12
  %29 = xor i32 %27, %28
  %30 = load i32, ptr %6, align 4, !tbaa !12
  %31 = xor i32 1, %30
  %32 = and i32 %29, %31
  %33 = and i32 %32, 128
  %34 = icmp ne i32 %33, 0
  %35 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 5
  %36 = getelementptr inbounds [8 x i8], ptr %35, i64 0, i64 3
  %37 = zext i1 %34 to i8
  store i8 %37, ptr %36, align 1, !tbaa !14
  %38 = load i32, ptr %6, align 4, !tbaa !12
  %39 = and i32 %38, 255
  %40 = trunc i32 %39 to i8
  %41 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 4
  %42 = load i16, ptr %4, align 2, !tbaa !9
  %43 = zext i16 %42 to i64
  %44 = getelementptr inbounds [8 x i8], ptr %41, i64 0, i64 %43
  store i8 %40, ptr %44, align 1, !tbaa !11
  %45 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 4
  %46 = load i16, ptr %4, align 2, !tbaa !9
  %47 = zext i16 %46 to i64
  %48 = getelementptr inbounds [8 x i8], ptr %45, i64 0, i64 %47
  %49 = load i8, ptr %48, align 1, !tbaa !11
  %50 = zext i8 %49 to i32
  %51 = icmp eq i32 %50, 0
  %52 = getelementptr inbounds %class.cosproc, ptr %7, i32 0, i32 5
  %53 = getelementptr inbounds [8 x i8], ptr %52, i64 0, i64 0
  %54 = zext i1 %51 to i8
  store i8 %54, ptr %53, align 4, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"bool", !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 nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @_ZN7cosproc4DECREt(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 20
  %4 = zext i16 %1 to i64
  %5 = getelementptr inbounds [8 x i8], ptr %3, i64 0, i64 %4
  %6 = load i8, ptr %5, align 1, !tbaa !5
  %7 = zext i8 %6 to i32
  %8 = add nsw i32 %7, -1
  %9 = icmp ugt i32 %8, 127
  %10 = getelementptr inbounds i8, ptr %0, i64 28
  %11 = getelementptr inbounds i8, ptr %0, i64 29
  %12 = zext i1 %9 to i8
  store i8 %12, ptr %11, align 1, !tbaa !8
  %13 = icmp ugt i32 %8, 255
  %14 = getelementptr inbounds i8, ptr %0, i64 30
  %15 = zext i1 %13 to i8
  store i8 %15, ptr %14, align 2, !tbaa !8
  %16 = and i32 %7, 128
  %17 = xor i32 %16, 128
  %18 = and i32 %17, %8
  %19 = icmp ne i32 %18, 0
  %20 = getelementptr inbounds i8, ptr %0, i64 31
  %21 = zext i1 %19 to i8
  store i8 %21, ptr %20, align 1, !tbaa !8
  %22 = trunc i32 %8 to i8
  store i8 %22, ptr %5, align 1, !tbaa !5
  %23 = and i32 %8, 255
  %24 = icmp eq i32 %23, 0
  %25 = zext i1 %24 to i8
  store i8 %25, ptr %10, align 4, !tbaa !8
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"bool", !6, i64 0}


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