; LLVM IR from tleonhardt/practical_cryptography_engineering :: mbedtls (dhm)

; 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.mbedtls_dhm_context = type { i64, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi, %struct.mbedtls_mpi }
%struct.mbedtls_mpi = type { i32, i64, ptr }

; 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 @mbedtls_dhm_read_public(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %21, label %12

12:                                               ; preds = %3
  %13 = load i64, ptr %7, align 8, !tbaa !9
  %14 = icmp ult i64 %13, 1
  br i1 %14, label %21, label %15

15:                                               ; preds = %12
  %16 = load i64, ptr %7, align 8, !tbaa !9
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.mbedtls_dhm_context, ptr %17, i32 0, i32 0
  %19 = load i64, ptr %18, align 8, !tbaa !11
  %20 = icmp ugt i64 %16, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %15, %12, %3
  store i32 -12416, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %33

22:                                               ; preds = %15
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.mbedtls_dhm_context, ptr %23, i32 0, i32 5
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load i64, ptr %7, align 8, !tbaa !9
  %27 = call i32 @mbedtls_mpi_read_binary(ptr noundef %24, ptr noundef %25, i64 noundef %26)
  store i32 %27, ptr %8, align 4, !tbaa !15
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %32

29:                                               ; preds = %22
  %30 = load i32, ptr %8, align 4, !tbaa !15
  %31 = add nsw i32 -12800, %30
  store i32 %31, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %33

32:                                               ; preds = %22
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %33

33:                                               ; preds = %32, %29, %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %34 = load i32, ptr %4, align 4
  ret i32 %34
}

declare i32 @mbedtls_mpi_read_binary(ptr noundef, ptr noundef, i64 noundef) #2

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 = { "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 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !13, i64 8, !13, i64 32, !13, i64 56, !13, i64 80, !13, i64 104, !13, i64 128, !13, i64 152, !13, i64 176, !13, i64 200, !13, i64 224}
!13 = !{!"", !14, i64 0, !10, i64 8, !6, i64 16}
!14 = !{!"int", !7, i64 0}
!15 = !{!14, !14, 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: nounwind uwtable
define dso_local range(i32 -2147483648, 2147470848) i32 @mbedtls_dhm_read_public(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  %5 = icmp eq i64 %2, 0
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %13, label %6

6:                                                ; preds = %3
  %7 = load i64, ptr %0, align 8, !tbaa !5
  %8 = icmp ult i64 %7, %2
  br i1 %8, label %13, label %9

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %0, i64 104
  %11 = tail call i32 @mbedtls_mpi_read_binary(ptr noundef nonnull %10, ptr noundef %1, i64 noundef %2) #2
  %.not = icmp eq i32 %11, 0
  %12 = add nsw i32 %11, -12800
  %spec.select = select i1 %.not, i32 0, i32 %12
  br label %13

13:                                               ; preds = %9, %3, %6
  %.0 = phi i32 [ -12416, %6 ], [ -12416, %3 ], [ %spec.select, %9 ]
  ret i32 %.0
}

declare i32 @mbedtls_mpi_read_binary(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #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 = { "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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8, !10, i64 32, !10, i64 56, !10, i64 80, !10, i64 104, !10, i64 128, !10, i64 152, !10, i64 176, !10, i64 200, !10, i64 224}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"", !11, i64 0, !7, i64 8, !12, i64 16}
!11 = !{!"int", !8, i64 0}
!12 = !{!"any pointer", !8, i64 0}


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