; LLVM IR from guanzhi/GmSSL :: tests (chacha20test)

; 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] }

@__const.main.key = external hidden unnamed_addr constant [32 x i8], align 16
@__const.main.nonce = external hidden unnamed_addr constant [12 x i8], align 1
@__const.main.testdata = external hidden unnamed_addr constant [64 x i8], align 16
@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [32 x i8], align 16
  %4 = alloca [12 x i8], align 1
  %5 = alloca i32, align 4
  %6 = alloca [64 x i8], align 16
  %7 = alloca [64 x i8], align 16
  %8 = alloca %struct.CHACHA20_STATE, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %3, ptr align 16 @__const.main.key, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 12, ptr %4) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %4, ptr align 1 @__const.main.nonce, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 1, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 64, ptr %6) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %6, ptr align 16 @__const.main.testdata, i64 64, i1 false)
  call void @llvm.lifetime.start.p0(i64 64, ptr %7) #5
  call void @llvm.lifetime.start.p0(i64 64, ptr %8) #5
  %9 = getelementptr inbounds [32 x i8], ptr %3, i64 0, i64 0
  %10 = getelementptr inbounds [12 x i8], ptr %4, i64 0, i64 0
  %11 = load i32, ptr %5, align 4, !tbaa !5
  call void @chacha20_init(ptr noundef %8, ptr noundef %9, ptr noundef %10, i32 noundef %11)
  %12 = getelementptr inbounds [64 x i8], ptr %7, i64 0, i64 0
  call void @chacha20_generate_keystream(ptr noundef %8, i64 noundef 1, ptr noundef %12)
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %14 = getelementptr inbounds [64 x i8], ptr %7, i64 0, i64 0
  %15 = getelementptr inbounds [64 x i8], ptr %6, i64 0, i64 0
  %16 = call i32 @memcmp(ptr noundef %14, ptr noundef %15, i64 noundef 64) #6
  %17 = icmp ne i32 %16, 0
  br i1 %17, label %18, label %22

18:                                               ; preds = %0
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %2, align 4, !tbaa !5
  br label %24

22:                                               ; preds = %0
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %24

24:                                               ; preds = %22, %18
  %25 = load i32, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 64, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 64, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 64, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  ret i32 %25
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare void @chacha20_init(ptr noundef, ptr noundef, ptr noundef, i32 noundef) #3

declare void @chacha20_generate_keystream(ptr noundef, i64 noundef, ptr noundef) #3

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 #4 = { nounwind willreturn memory(read) "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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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"}


; 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"

%struct.CHACHA20_STATE = type { [16 x i32] }

@__const.main.key = external hidden unnamed_addr constant [32 x i8], align 16
@__const.main.nonce = external hidden unnamed_addr constant [12 x i8], align 1
@__const.main.testdata = external hidden unnamed_addr constant [64 x i8], align 16
@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main() local_unnamed_addr #0 {
  %1 = alloca [32 x i8], align 16
  %2 = alloca [12 x i8], align 1
  %3 = alloca [64 x i8], align 16
  %4 = alloca %struct.CHACHA20_STATE, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull align 16 dereferenceable(32) @__const.main.key, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %2) #6
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(12) %2, ptr noundef nonnull align 1 dereferenceable(12) @__const.main.nonce, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %4) #6
  call void @chacha20_init(ptr noundef nonnull %4, ptr noundef nonnull %1, ptr noundef nonnull %2, i32 noundef 1) #6
  call void @chacha20_generate_keystream(ptr noundef nonnull %4, i64 noundef 1, ptr noundef nonnull %3) #6
  %5 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %bcmp = call i32 @bcmp(ptr noundef nonnull dereferenceable(64) %3, ptr noundef nonnull dereferenceable(64) @__const.main.testdata, i64 64)
  %.not = icmp ne i32 %bcmp, 0
  %.str.2..str.1 = select i1 %.not, ptr @.str.1, ptr @.str.2
  %. = zext i1 %.not to i32
  %6 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.2..str.1)
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 %.
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare void @chacha20_init(ptr noundef, ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #3

declare void @chacha20_generate_keystream(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #5

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 #4 = { nofree nounwind "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 #5 = { nofree nounwind willreturn memory(argmem: read) }
attributes #6 = { 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)"}


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