; LLVM IR from Northstrix/Encrypted_Data_Vault :: Raspberry_Pi_Pico_plus_ESP32/Firmware_for_Raspberry_Pi_Pico (serpent)

; 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"

; 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: nounwind uwtable
define dso_local i32 @serpent_gen_w(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds i32, ptr %6, i64 0
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds i32, ptr %9, i64 3
  %11 = load i32, ptr %10, align 4, !tbaa !9
  %12 = xor i32 %8, %11
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds i32, ptr %13, i64 5
  %15 = load i32, ptr %14, align 4, !tbaa !9
  %16 = xor i32 %12, %15
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds i32, ptr %17, i64 7
  %19 = load i32, ptr %18, align 4, !tbaa !9
  %20 = xor i32 %16, %19
  %21 = zext i32 %20 to i64
  %22 = xor i64 %21, 2654435769
  %23 = load i32, ptr %4, align 4, !tbaa !9
  %24 = zext i32 %23 to i64
  %25 = xor i64 %22, %24
  %26 = trunc i64 %25 to i32
  store i32 %26, ptr %5, align 4, !tbaa !9
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = shl i32 %27, 11
  %29 = and i32 %28, -1
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = lshr i32 %30, 21
  %32 = or i32 %29, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %32
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"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 nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local i32 @serpent_gen_w(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load i32, ptr %0, align 4, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 12
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 20
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 28
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = xor i32 %3, %1
  %11 = xor i32 %10, %5
  %12 = xor i32 %11, %7
  %13 = xor i32 %12, %9
  %14 = xor i32 %13, -1640531527
  %15 = tail call i32 @llvm.fshl.i32(i32 %14, i32 %14, i32 11)
  ret i32 %15
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.fshl.i32(i32, i32, i32) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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 nosync nounwind speculatable willreturn memory(none) }

!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"}


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