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

; 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_ssl_context = type { ptr, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i64, i64, i16, i64, i64, i64, i64, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, i64, i64, i8, i32, ptr, ptr, ptr, i64, i32, i64, [12 x i8], [12 x i8] }
%struct.mbedtls_ssl_config = type { [4 x ptr], ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.mbedtls_mpi, %struct.mbedtls_mpi, ptr, i64, ptr, i64, ptr, i32, i32, i32, i32, [8 x i8], i32, i32, i8, i8, i8, i8, i32 }
%struct.mbedtls_mpi = type { i32, i64, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @mbedtls_ssl_set_client_transport_id(ptr noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  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
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.mbedtls_ssl_context, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = getelementptr inbounds %struct.mbedtls_ssl_config, ptr %10, i32 0, i32 46
  %12 = load i32, ptr %11, align 4
  %13 = and i32 %12, 1
  %14 = icmp ne i32 %13, 1
  br i1 %14, label %15, label %16

15:                                               ; preds = %3
  store i32 -28928, ptr %4, align 4
  br label %35

16:                                               ; preds = %3
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.mbedtls_ssl_context, ptr %17, i32 0, i32 53
  %19 = load ptr, ptr %18, align 8, !tbaa !15
  call void @free(ptr noundef %19) #4
  %20 = load i64, ptr %7, align 8, !tbaa !9
  %21 = call noalias ptr @calloc(i64 noundef 1, i64 noundef %20) #5
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.mbedtls_ssl_context, ptr %22, i32 0, i32 53
  store ptr %21, ptr %23, align 8, !tbaa !15
  %24 = icmp eq ptr %21, null
  br i1 %24, label %25, label %26

25:                                               ; preds = %16
  store i32 -32512, ptr %4, align 4
  br label %35

26:                                               ; preds = %16
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.mbedtls_ssl_context, ptr %27, i32 0, i32 53
  %29 = load ptr, ptr %28, align 8, !tbaa !15
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load i64, ptr %7, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %29, ptr align 1 %30, i64 %31, i1 false)
  %32 = load i64, ptr %7, align 8, !tbaa !9
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.mbedtls_ssl_context, ptr %33, i32 0, i32 54
  store i64 %32, ptr %34, align 8, !tbaa !16
  store i32 0, ptr %4, align 4
  br label %35

35:                                               ; preds = %26, %25, %15
  %36 = load i32, ptr %4, align 4
  ret i32 %36
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

; Function Attrs: nounwind allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #2

; 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) #3

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 = { 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 = { nounwind allocsize(0,1) "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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0,1) }

!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, !6, i64 0}
!12 = !{!"mbedtls_ssl_context", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !6, i64 176, !6, i64 184, !6, i64 192, !6, i64 200, !6, i64 208, !13, i64 216, !10, i64 224, !10, i64 232, !14, i64 240, !10, i64 248, !10, i64 256, !10, i64 264, !10, i64 272, !13, i64 280, !13, i64 284, !6, i64 288, !6, i64 296, !6, i64 304, !6, i64 312, !6, i64 320, !6, i64 328, !13, i64 336, !10, i64 344, !10, i64 352, !7, i64 360, !13, i64 364, !6, i64 368, !6, i64 376, !6, i64 384, !10, i64 392, !13, i64 400, !10, i64 408, !7, i64 416, !7, i64 428}
!13 = !{!"int", !7, i64 0}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !6, i64 384}
!16 = !{!12, !10, i64 392}


; 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 nounwind willreturn uwtable
define dso_local range(i32 -32512, 1) i32 @mbedtls_ssl_set_client_transport_id(ptr nocapture noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 372
  %6 = load i32, ptr %5, align 4
  %7 = and i32 %6, 1
  %.not.not = icmp eq i32 %7, 0
  br i1 %.not.not, label %15, label %8

8:                                                ; preds = %3
  %9 = getelementptr inbounds i8, ptr %0, i64 384
  %10 = load ptr, ptr %9, align 8, !tbaa !13
  tail call void @free(ptr noundef %10) #4
  %11 = tail call noalias ptr @calloc(i64 noundef 1, i64 noundef %2) #5
  store ptr %11, ptr %9, align 8, !tbaa !13
  %12 = icmp eq ptr %11, null
  br i1 %12, label %15, label %13

13:                                               ; preds = %8
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %11, ptr align 1 %1, i64 %2, i1 false)
  %14 = getelementptr inbounds i8, ptr %0, i64 392
  store i64 %2, ptr %14, align 8, !tbaa !14
  br label %15

15:                                               ; preds = %8, %3, %13
  %.0 = phi i32 [ 0, %13 ], [ -28928, %3 ], [ -32512, %8 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #2

; 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) #3

attributes #0 = { mustprogress nounwind willreturn 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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0,1) }

!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 = !{!"mbedtls_ssl_context", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !7, i64 176, !7, i64 184, !7, i64 192, !7, i64 200, !7, i64 208, !10, i64 216, !11, i64 224, !11, i64 232, !12, i64 240, !11, i64 248, !11, i64 256, !11, i64 264, !11, i64 272, !10, i64 280, !10, i64 284, !7, i64 288, !7, i64 296, !7, i64 304, !7, i64 312, !7, i64 320, !7, i64 328, !10, i64 336, !11, i64 344, !11, i64 352, !8, i64 360, !10, i64 364, !7, i64 368, !7, i64 376, !7, i64 384, !11, i64 392, !10, i64 400, !11, i64 408, !8, i64 416, !8, i64 428}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!"short", !8, i64 0}
!13 = !{!6, !7, i64 384}
!14 = !{!6, !11, i64 392}


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