; LLVM IR from guanzhi/GmSSL :: src (chacha20)

; 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.CHACHA20_STATE = type { [16 x i32] }

; Function Attrs: nounwind uwtable
define dso_local void @chacha20_init(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i32 %3, ptr %8, align 4, !tbaa !9
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %9, i32 0, i32 0
  %11 = getelementptr inbounds [16 x i32], ptr %10, i64 0, i64 0
  store i32 1634760805, ptr %11, align 4, !tbaa !9
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %12, i32 0, i32 0
  %14 = getelementptr inbounds [16 x i32], ptr %13, i64 0, i64 1
  store i32 857760878, ptr %14, align 4, !tbaa !9
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %15, i32 0, i32 0
  %17 = getelementptr inbounds [16 x i32], ptr %16, i64 0, i64 2
  store i32 2036477234, ptr %17, align 4, !tbaa !9
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %18, i32 0, i32 0
  %20 = getelementptr inbounds [16 x i32], ptr %19, i64 0, i64 3
  store i32 1797285236, ptr %20, align 4, !tbaa !9
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load i32, ptr %21, align 4, !tbaa !9
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %23, i32 0, i32 0
  %25 = getelementptr inbounds [16 x i32], ptr %24, i64 0, i64 4
  store i32 %22, ptr %25, align 4, !tbaa !9
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %26, i64 4
  %28 = load i32, ptr %27, align 4, !tbaa !9
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %29, i32 0, i32 0
  %31 = getelementptr inbounds [16 x i32], ptr %30, i64 0, i64 5
  store i32 %28, ptr %31, align 4, !tbaa !9
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = getelementptr inbounds i8, ptr %32, i64 8
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %35, i32 0, i32 0
  %37 = getelementptr inbounds [16 x i32], ptr %36, i64 0, i64 6
  store i32 %34, ptr %37, align 4, !tbaa !9
  %38 = load ptr, ptr %6, align 8, !tbaa !5
  %39 = getelementptr inbounds i8, ptr %38, i64 12
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %41, i32 0, i32 0
  %43 = getelementptr inbounds [16 x i32], ptr %42, i64 0, i64 7
  store i32 %40, ptr %43, align 4, !tbaa !9
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  %45 = getelementptr inbounds i8, ptr %44, i64 16
  %46 = load i32, ptr %45, align 4, !tbaa !9
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %47, i32 0, i32 0
  %49 = getelementptr inbounds [16 x i32], ptr %48, i64 0, i64 8
  store i32 %46, ptr %49, align 4, !tbaa !9
  %50 = load ptr, ptr %6, align 8, !tbaa !5
  %51 = getelementptr inbounds i8, ptr %50, i64 20
  %52 = load i32, ptr %51, align 4, !tbaa !9
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %53, i32 0, i32 0
  %55 = getelementptr inbounds [16 x i32], ptr %54, i64 0, i64 9
  store i32 %52, ptr %55, align 4, !tbaa !9
  %56 = load ptr, ptr %6, align 8, !tbaa !5
  %57 = getelementptr inbounds i8, ptr %56, i64 24
  %58 = load i32, ptr %57, align 4, !tbaa !9
  %59 = load ptr, ptr %5, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %59, i32 0, i32 0
  %61 = getelementptr inbounds [16 x i32], ptr %60, i64 0, i64 10
  store i32 %58, ptr %61, align 4, !tbaa !9
  %62 = load ptr, ptr %6, align 8, !tbaa !5
  %63 = getelementptr inbounds i8, ptr %62, i64 28
  %64 = load i32, ptr %63, align 4, !tbaa !9
  %65 = load ptr, ptr %5, align 8, !tbaa !5
  %66 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %65, i32 0, i32 0
  %67 = getelementptr inbounds [16 x i32], ptr %66, i64 0, i64 11
  store i32 %64, ptr %67, align 4, !tbaa !9
  %68 = load i32, ptr %8, align 4, !tbaa !9
  %69 = load ptr, ptr %5, align 8, !tbaa !5
  %70 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %69, i32 0, i32 0
  %71 = getelementptr inbounds [16 x i32], ptr %70, i64 0, i64 12
  store i32 %68, ptr %71, align 4, !tbaa !9
  %72 = load ptr, ptr %7, align 8, !tbaa !5
  %73 = load i32, ptr %72, align 4, !tbaa !9
  %74 = load ptr, ptr %5, align 8, !tbaa !5
  %75 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %74, i32 0, i32 0
  %76 = getelementptr inbounds [16 x i32], ptr %75, i64 0, i64 13
  store i32 %73, ptr %76, align 4, !tbaa !9
  %77 = load ptr, ptr %7, align 8, !tbaa !5
  %78 = getelementptr inbounds i8, ptr %77, i64 4
  %79 = load i32, ptr %78, align 4, !tbaa !9
  %80 = load ptr, ptr %5, align 8, !tbaa !5
  %81 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %80, i32 0, i32 0
  %82 = getelementptr inbounds [16 x i32], ptr %81, i64 0, i64 14
  store i32 %79, ptr %82, align 4, !tbaa !9
  %83 = load ptr, ptr %7, align 8, !tbaa !5
  %84 = getelementptr inbounds i8, ptr %83, i64 8
  %85 = load i32, ptr %84, align 4, !tbaa !9
  %86 = load ptr, ptr %5, align 8, !tbaa !5
  %87 = getelementptr inbounds %struct.CHACHA20_STATE, ptr %86, i32 0, i32 0
  %88 = getelementptr inbounds [16 x i32], ptr %87, i64 0, i64 15
  store i32 %85, ptr %88, align 4, !tbaa !9
  ret void
}

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" }

!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: readwrite) uwtable
define dso_local void @chacha20_init(ptr nocapture noundef writeonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2, i32 noundef %3) local_unnamed_addr #0 {
  store <4 x i32> <i32 1634760805, i32 857760878, i32 2036477234, i32 1797285236>, ptr %0, align 4, !tbaa !5
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  store i32 %5, ptr %6, align 4, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %1, i64 4
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 20
  store i32 %8, ptr %9, align 4, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %1, i64 8
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 %11, ptr %12, align 4, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %1, i64 12
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %0, i64 28
  store i32 %14, ptr %15, align 4, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %1, i64 16
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %0, i64 32
  store i32 %17, ptr %18, align 4, !tbaa !5
  %19 = getelementptr inbounds i8, ptr %1, i64 20
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %0, i64 36
  store i32 %20, ptr %21, align 4, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %1, i64 24
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %0, i64 40
  store i32 %23, ptr %24, align 4, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %1, i64 28
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %0, i64 44
  store i32 %26, ptr %27, align 4, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %0, i64 48
  store i32 %3, ptr %28, align 4, !tbaa !5
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %0, i64 52
  store i32 %29, ptr %30, align 4, !tbaa !5
  %31 = getelementptr inbounds i8, ptr %2, i64 4
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = getelementptr inbounds i8, ptr %0, i64 56
  store i32 %32, ptr %33, align 4, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %2, i64 8
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %0, i64 60
  store i32 %35, ptr %36, align 4, !tbaa !5
  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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass