; LLVM IR from moarseniy/CudaFEMproject :: FEMproject/thirdparty/segyio2/src (segy)

; 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.segy_file_handle = type { ptr, ptr, ptr, i64, [5 x i8], i32, i32, i32 }

@.str.4 = external hidden unnamed_addr constant [99 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [16 x i8], align 1
@__PRETTY_FUNCTION__.segy_seek = external hidden unnamed_addr constant [43 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local i32 @segy_seek(ptr noundef %0, i32 noundef %1, i64 noundef %2, i32 noundef %3) #2 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !9
  store i64 %2, ptr %8, align 8, !tbaa !11
  store i32 %3, ptr %9, align 4, !tbaa !9
  %13 = load i32, ptr %9, align 4, !tbaa !9
  %14 = add nsw i32 %13, 240
  store i32 %14, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %15 = load i64, ptr %8, align 8, !tbaa !11
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = load i32, ptr %9, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = mul nsw i64 %17, %19
  %21 = add nsw i64 %15, %20
  store i64 %21, ptr %10, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %22 = load i64, ptr %10, align 8, !tbaa !13
  %23 = icmp sle i64 %22, 9223372036854775807
  br i1 %23, label %24, label %25

24:                                               ; preds = %4
  br label %26

25:                                               ; preds = %4
  call void @__assert_fail(ptr noundef @.str.6, ptr noundef @.str.4, i32 noundef 974, ptr noundef @__PRETTY_FUNCTION__.segy_seek) #5
  unreachable

26:                                               ; preds = %24
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.segy_file_handle, ptr %27, i32 0, i32 2
  %29 = load ptr, ptr %28, align 8, !tbaa !15
  %30 = load i64, ptr %10, align 8, !tbaa !13
  %31 = call i32 @fseek(ptr noundef %29, i64 noundef %30, i32 noundef 0)
  store i32 %31, ptr %11, align 4, !tbaa !9
  %32 = load i32, ptr %11, align 4, !tbaa !9
  %33 = icmp ne i32 %32, 0
  br i1 %33, label %34, label %35

34:                                               ; preds = %26
  store i32 2, ptr %5, align 4
  store i32 1, ptr %12, align 4
  br label %36

35:                                               ; preds = %26
  store i32 0, ptr %5, align 4
  store i32 1, ptr %12, align 4
  br label %36

36:                                               ; preds = %35, %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %37 = load i32, ptr %5, align 4
  ret i32 %37
}

declare i32 @fseek(ptr noundef, i64 noundef, i32 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 }
attributes #5 = { 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}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"long long", !7, i64 0}
!15 = !{!16, !6, i64 16}
!16 = !{!"segy_file_handle", !6, i64 0, !6, i64 8, !6, i64 16, !12, i64 24, !7, i64 32, !10, i64 40, !10, i64 44, !10, i64 48}


; 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: nofree nounwind uwtable
define dso_local noundef range(i32 0, 3) i32 @segy_seek(ptr nocapture noundef readonly %0, i32 noundef %1, i64 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = sext i32 %1 to i64
  %6 = add nsw i32 %3, 240
  %7 = sext i32 %6 to i64
  %8 = mul nsw i64 %7, %5
  %9 = add nsw i64 %8, %2
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  %12 = tail call i32 @fseek(ptr noundef %11, i64 noundef %9, i32 noundef 0)
  %.not = icmp eq i32 %12, 0
  %.0 = select i1 %.not, i32 0, i32 2
  ret i32 %.0
}

; Function Attrs: nofree nounwind
declare noundef i32 @fseek(ptr nocapture noundef, i64 noundef, i32 noundef) local_unnamed_addr #1

attributes #0 = { nofree 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" }

!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 16}
!6 = !{!"segy_file_handle", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !8, i64 32, !11, i64 40, !11, i64 44, !11, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}


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