; LLVM IR from erthink/libmdbx :: src (api-key-transform)

; 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.libmdbx_globals = type { %union.bin128, i32, i32, i8, i8, i8, i8, i32, %union.logger_union, %union.pthread_mutex_t, i64, ptr }
%union.bin128 = type { %struct.anon }
%struct.anon = type { i64, i64 }
%union.logger_union = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%struct.iovec = type { ptr, i64 }

@globals = external global %struct.libmdbx_globals, align 8
@.str.3 = external hidden unnamed_addr constant [15 x i8], align 1
@__func__.mdbx_double_from_key = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #0

; Function Attrs: noreturn
declare void @mdbx_assert_fail(ptr noundef, ptr noundef, ptr noundef, i32 noundef) #1

; Function Attrs: inlinehint nounwind willreturn memory(read) uwtable
declare hidden i64 @unaligned_peek_u64(i64 noundef, ptr noalias noundef) #2

; Function Attrs: nounwind willreturn memory(read) uwtable
define dso_local double @mdbx_double_from_key(ptr %0, i64 %1) #3 {
  %3 = alloca %struct.iovec, align 8
  %4 = getelementptr inbounds { ptr, i64 }, ptr %3, i32 0, i32 0
  store ptr %0, ptr %4, align 8
  %5 = getelementptr inbounds { ptr, i64 }, ptr %3, i32 0, i32 1
  store i64 %1, ptr %5, align 8
  br label %6

6:                                                ; preds = %2
  %7 = load i8, ptr getelementptr inbounds (%struct.libmdbx_globals, ptr @globals, i32 0, i32 4), align 1, !tbaa !5
  %8 = zext i8 %7 to i32
  %9 = and i32 %8, 1
  %10 = icmp ne i32 %9, 0
  %11 = xor i1 %10, true
  %12 = xor i1 %11, true
  %13 = zext i1 %12 to i32
  %14 = sext i32 %13 to i64
  %15 = call i64 @llvm.expect.i64(i64 %14, i64 1)
  %16 = icmp ne i64 %15, 0
  br i1 %16, label %17, label %32

17:                                               ; preds = %6
  br label %18

18:                                               ; preds = %17
  %19 = getelementptr inbounds %struct.iovec, ptr %3, i32 0, i32 1
  %20 = load i64, ptr %19, align 8, !tbaa !13
  %21 = icmp eq i64 %20, 8
  %22 = xor i1 %21, true
  %23 = xor i1 %22, true
  %24 = xor i1 %23, true
  %25 = zext i1 %24 to i32
  %26 = sext i32 %25 to i64
  %27 = call i64 @llvm.expect.i64(i64 %26, i64 0)
  %28 = icmp ne i64 %27, 0
  br i1 %28, label %29, label %30

29:                                               ; preds = %18
  call void @mdbx_assert_fail(ptr noundef null, ptr noundef @.str.3, ptr noundef @__func__.mdbx_double_from_key, i32 noundef 180) #5
  unreachable

30:                                               ; preds = %18
  br label %31

31:                                               ; preds = %30
  br label %32

32:                                               ; preds = %31, %6
  br label %33

33:                                               ; preds = %32
  %34 = getelementptr inbounds %struct.iovec, ptr %3, i32 0, i32 0
  %35 = load ptr, ptr %34, align 8, !tbaa !15
  %36 = call i64 @unaligned_peek_u64(i64 noundef 2, ptr noundef %35) #6
  %37 = call double @key2double(i64 noundef %36)
  ret double %37
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden double @key2double(i64 noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #1 = { noreturn "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 = { inlinehint nounwind willreturn memory(read) 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 #3 = { nounwind willreturn memory(read) 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 #4 = { inlinehint 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 #5 = { noreturn }
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, !7, i64 25}
!6 = !{!"libmdbx_globals", !7, i64 0, !9, i64 16, !9, i64 20, !7, i64 24, !7, i64 25, !7, i64 26, !10, i64 27, !9, i64 28, !7, i64 32, !7, i64 40, !11, i64 80, !12, i64 88}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!"_Bool", !7, i64 0}
!11 = !{!"long", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!14, !11, i64 8}
!14 = !{!"iovec", !12, i64 0, !11, i64 8}
!15 = !{!14, !12, 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"

%struct.libmdbx_globals = type { %union.bin128, i32, i32, i8, i8, i8, i8, i32, %union.logger_union, %union.pthread_mutex_t, i64, ptr }
%union.bin128 = type { %struct.anon }
%struct.anon = type { i64, i64 }
%union.logger_union = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }

@globals = external local_unnamed_addr global %struct.libmdbx_globals, align 8
@.str.3 = external hidden unnamed_addr constant [15 x i8], align 1
@__func__.mdbx_double_from_key = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: noreturn
declare void @mdbx_assert_fail(ptr noundef, ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nofree nounwind willreturn memory(read) uwtable
declare hidden i64 @unaligned_peek_u64(i64 noundef, ptr noalias noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(read) uwtable
define dso_local double @mdbx_double_from_key(ptr %0, i64 %1) local_unnamed_addr #2 {
  %3 = load i8, ptr getelementptr inbounds (i8, ptr @globals, i64 25), align 1, !tbaa !5
  %4 = and i8 %3, 1
  %.not = icmp eq i8 %4, 0
  %.not1 = icmp eq i64 %1, 8
  %or.cond = select i1 %.not, i1 true, i1 %.not1
  br i1 %or.cond, label %6, label %5, !prof !13

5:                                                ; preds = %2
  tail call void @mdbx_assert_fail(ptr noundef null, ptr noundef nonnull @.str.3, ptr noundef nonnull @__func__.mdbx_double_from_key, i32 noundef 180) #4
  unreachable

6:                                                ; preds = %2
  %7 = tail call i64 @unaligned_peek_u64(i64 noundef 2, ptr noundef %0) #5
  %8 = tail call double @key2double(i64 noundef %7)
  ret double %8
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden double @key2double(i64 noundef) local_unnamed_addr #3

attributes #0 = { noreturn "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 = { inlinehint mustprogress nofree nounwind willreturn memory(read) 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 = { mustprogress nofree nounwind willreturn memory(read) 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 #3 = { inlinehint 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 #4 = { noreturn nounwind }
attributes #5 = { 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, !7, i64 25}
!6 = !{!"libmdbx_globals", !7, i64 0, !9, i64 16, !9, i64 20, !7, i64 24, !7, i64 25, !7, i64 26, !10, i64 27, !9, i64 28, !7, i64 32, !7, i64 40, !11, i64 80, !12, i64 88}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!"_Bool", !7, i64 0}
!11 = !{!"long", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!"branch_weights", i32 4002001, i32 2000}


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