; LLVM IR from NOAA-PMEL/Ferret :: fer/ccr (binaryRead)

; 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"

@FFileInfo = external hidden global ptr, align 8
@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__PRETTY_FUNCTION__.br_open_ = external hidden unnamed_addr constant [42 x i8], align 1
@Swap = external hidden global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local i32 @br_open_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %10 = load ptr, ptr %8, align 8, !tbaa !5
  %11 = load i32, ptr %10, align 4, !tbaa !9
  %12 = sext i32 %11 to i64
  %13 = mul i64 %12, 4
  %14 = trunc i64 %13 to i32
  store i32 %14, ptr %9, align 4, !tbaa !9
  %15 = load ptr, ptr @FFileInfo, align 8, !tbaa !5
  %16 = icmp eq ptr %15, null
  br i1 %16, label %17, label %18

17:                                               ; preds = %4
  br label %19

18:                                               ; preds = %4
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 398, ptr noundef @__PRETTY_FUNCTION__.br_open_) #4
  unreachable

19:                                               ; preds = %17
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = load i32, ptr %9, align 4, !tbaa !9
  %24 = load i32, ptr @Swap, align 4, !tbaa !9
  %25 = call ptr @createBinaryReader(ptr noundef %20, ptr noundef %21, ptr noundef %22, i32 noundef %23, i32 noundef %24)
  store ptr %25, ptr @FFileInfo, align 8, !tbaa !5
  %26 = load ptr, ptr @FFileInfo, align 8, !tbaa !5
  %27 = icmp ne ptr %26, null
  %28 = zext i1 %27 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  ret i32 %28
}

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

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

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

; 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 = { noreturn 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 = { nounwind }
attributes #4 = { noreturn 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 = !{!"int", !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"

@FFileInfo = external hidden local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__PRETTY_FUNCTION__.br_open_ = external hidden unnamed_addr constant [42 x i8], align 1
@Swap = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @br_open_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr nocapture noundef readonly %3) local_unnamed_addr #0 {
  %5 = load ptr, ptr @FFileInfo, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 398, ptr noundef nonnull @__PRETTY_FUNCTION__.br_open_) #2
  unreachable

8:                                                ; preds = %4
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = shl i32 %9, 2
  %11 = load i32, ptr @Swap, align 4, !tbaa !9
  %12 = tail call ptr @createBinaryReader(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %10, i32 noundef %11)
  store ptr %12, ptr @FFileInfo, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  %14 = zext i1 %13 to i32
  ret i32 %14
}

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

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

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 = { noreturn 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 = { noreturn 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 = !{!"int", !7, i64 0}


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