; LLVM IR from openssl/openssl :: demos/encode (ec_encode)

; 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"

@stdin = external global ptr, align 8
@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [22 x i8], align 1
@stdout = external global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 1, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store ptr null, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store ptr null, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  store ptr null, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  store ptr null, ptr %10, align 8, !tbaa !9
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = icmp sgt i32 %11, 1
  br i1 %12, label %13, label %25

13:                                               ; preds = %2
  %14 = load ptr, ptr %5, align 8, !tbaa !9
  %15 = getelementptr inbounds ptr, ptr %14, i64 1
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = getelementptr inbounds i8, ptr %16, i64 0
  %18 = load i8, ptr %17, align 1, !tbaa !11
  %19 = sext i8 %18 to i32
  %20 = icmp ne i32 %19, 0
  br i1 %20, label %21, label %25

21:                                               ; preds = %13
  %22 = load ptr, ptr %5, align 8, !tbaa !9
  %23 = getelementptr inbounds ptr, ptr %22, i64 1
  %24 = load ptr, ptr %23, align 8, !tbaa !9
  store ptr %24, ptr %9, align 8, !tbaa !9
  br label %25

25:                                               ; preds = %21, %13, %2
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = icmp sgt i32 %26, 2
  br i1 %27, label %28, label %40

28:                                               ; preds = %25
  %29 = load ptr, ptr %5, align 8, !tbaa !9
  %30 = getelementptr inbounds ptr, ptr %29, i64 2
  %31 = load ptr, ptr %30, align 8, !tbaa !9
  %32 = getelementptr inbounds i8, ptr %31, i64 0
  %33 = load i8, ptr %32, align 1, !tbaa !11
  %34 = sext i8 %33 to i32
  %35 = icmp ne i32 %34, 0
  br i1 %35, label %36, label %40

36:                                               ; preds = %28
  %37 = load ptr, ptr %5, align 8, !tbaa !9
  %38 = getelementptr inbounds ptr, ptr %37, i64 2
  %39 = load ptr, ptr %38, align 8, !tbaa !9
  store ptr %39, ptr %10, align 8, !tbaa !9
  br label %40

40:                                               ; preds = %36, %28, %25
  %41 = load ptr, ptr %7, align 8, !tbaa !9
  %42 = load ptr, ptr @stdin, align 8, !tbaa !9
  %43 = load ptr, ptr %9, align 8, !tbaa !9
  %44 = call ptr @load_key(ptr noundef %41, ptr noundef %42, ptr noundef %43)
  store ptr %44, ptr %8, align 8, !tbaa !9
  %45 = load ptr, ptr %8, align 8, !tbaa !9
  %46 = icmp eq ptr %45, null
  br i1 %46, label %47, label %50

47:                                               ; preds = %40
  %48 = load ptr, ptr @stderr, align 8, !tbaa !9
  %49 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %48, ptr noundef @.str) #4
  br label %60

50:                                               ; preds = %40
  %51 = load ptr, ptr %8, align 8, !tbaa !9
  %52 = load ptr, ptr @stdout, align 8, !tbaa !9
  %53 = load ptr, ptr %10, align 8, !tbaa !9
  %54 = call i32 @store_key(ptr noundef %51, ptr noundef %52, ptr noundef %53)
  %55 = icmp eq i32 %54, 0
  br i1 %55, label %56, label %59

56:                                               ; preds = %50
  %57 = load ptr, ptr @stderr, align 8, !tbaa !9
  %58 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %57, ptr noundef @.str.1) #4
  br label %60

59:                                               ; preds = %50
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %60

60:                                               ; preds = %59, %56, %47
  %61 = load ptr, ptr %8, align 8, !tbaa !9
  call void @EVP_PKEY_free(ptr noundef %61)
  %62 = load ptr, ptr %7, align 8, !tbaa !9
  call void @OSSL_LIB_CTX_free(ptr noundef %62)
  %63 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  ret i32 %63
}

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

; Function Attrs: nounwind uwtable
declare hidden ptr @load_key(ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @store_key(ptr noundef, ptr noundef, ptr noundef) #0

declare void @EVP_PKEY_free(ptr noundef) #3

declare void @OSSL_LIB_CTX_free(ptr noundef) #3

; 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 = { 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 #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 }

!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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !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"

@stdin = external local_unnamed_addr global ptr, align 8
@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [22 x i8], align 1
@stdout = external local_unnamed_addr global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %0, 1
  br i1 %3, label %4, label %.thread

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = load i8, ptr %6, align 1, !tbaa !9
  %.not = icmp eq i8 %7, 0
  %spec.select = select i1 %.not, ptr null, ptr %6
  %.not20 = icmp eq i32 %0, 2
  br i1 %.not20, label %.thread, label %8

8:                                                ; preds = %4
  %9 = getelementptr inbounds i8, ptr %1, i64 16
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %.not16 = icmp eq i8 %11, 0
  %spec.select17 = select i1 %.not16, ptr null, ptr %10
  br label %.thread

.thread:                                          ; preds = %2, %8, %4
  %.01319 = phi ptr [ %spec.select, %4 ], [ %spec.select, %8 ], [ null, %2 ]
  %.0 = phi ptr [ null, %4 ], [ %spec.select17, %8 ], [ null, %2 ]
  %12 = load ptr, ptr @stdin, align 8, !tbaa !5
  %13 = tail call ptr @load_key(ptr noundef null, ptr noundef %12, ptr noundef %.01319)
  %14 = icmp eq ptr %13, null
  br i1 %14, label %.sink.split, label %15

15:                                               ; preds = %.thread
  %16 = load ptr, ptr @stdout, align 8, !tbaa !5
  %17 = tail call i32 @store_key(ptr noundef nonnull %13, ptr noundef %16, ptr noundef %.0)
  %18 = icmp eq i32 %17, 0
  br i1 %18, label %.sink.split, label %21

.sink.split:                                      ; preds = %15, %.thread
  %.str.1.sink = phi ptr [ @.str, %.thread ], [ @.str.1, %15 ]
  %19 = load ptr, ptr @stderr, align 8, !tbaa !5
  %20 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %19, ptr noundef nonnull %.str.1.sink) #3
  br label %21

21:                                               ; preds = %.sink.split, %15
  %.014 = phi i32 [ 0, %15 ], [ 1, %.sink.split ]
  tail call void @EVP_PKEY_free(ptr noundef %13) #4
  tail call void @OSSL_LIB_CTX_free(ptr noundef null) #4
  ret i32 %.014
}

; Function Attrs: nounwind uwtable
declare hidden ptr @load_key(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare hidden i32 @store_key(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

declare void @EVP_PKEY_free(ptr noundef) local_unnamed_addr #2

declare void @OSSL_LIB_CTX_free(ptr noundef) local_unnamed_addr #2

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 = { 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 #2 = { "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 #3 = { cold nounwind }
attributes #4 = { 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 = !{!7, !7, i64 0}


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