; LLVM IR from Overload-Technologies/Overload :: Dependencies/assimp/code/Common/Compression.ll (ZNK6Assimp11Compression6isOpenEv)

; 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"

%"class.Assimp::Compression" = type { ptr }
%"struct.Assimp::Compression::impl" = type <{ i8, [7 x i8], %struct.z_stream_s, i32, [4 x i8] }>
%struct.z_stream_s = type { ptr, i32, i64, ptr, i32, i64, ptr, ptr, ptr, ptr, ptr, i32, i64, i64 }

@.str = external hidden unnamed_addr constant [17 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [112 x i8], align 1

declare void @_ZN6Assimp17aiAssertViolationEPKcS1_i(ptr noundef, ptr noundef, i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK6Assimp11Compression6isOpenEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.Assimp::Compression", ptr %3, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %1
  call void @_ZN6Assimp17aiAssertViolationEPKcS1_i(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 200)
  br label %8

8:                                                ; preds = %7, %1
  %9 = phi i1 [ true, %1 ], [ false, %7 ]
  %10 = getelementptr inbounds %"class.Assimp::Compression", ptr %3, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds %"struct.Assimp::Compression::impl", ptr %11, i32 0, i32 0
  %13 = load i8, ptr %12, align 8, !tbaa !11, !range !18, !noundef !19
  %14 = trunc i8 %13 to i1
  ret i1 %14
}

attributes #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 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" }

!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++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSN6Assimp11CompressionE", !6, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTSN6Assimp11Compression4implE", !13, i64 0, !14, i64 8, !17, i64 120}
!13 = !{!"bool", !7, i64 0}
!14 = !{!"_ZTS10z_stream_s", !6, i64 0, !15, i64 8, !16, i64 16, !6, i64 24, !15, i64 32, !16, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !15, i64 88, !16, i64 96, !16, i64 104}
!15 = !{!"int", !7, i64 0}
!16 = !{!"long", !7, i64 0}
!17 = !{!"_ZTSN6Assimp11Compression9FlushModeE", !7, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}


; 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"

@.str = external hidden unnamed_addr constant [17 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [112 x i8], align 1

declare void @_ZN6Assimp17aiAssertViolationEPKcS1_i(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK6Assimp11Compression6isOpenEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(8) %0) local_unnamed_addr #1 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %1
  tail call void @_ZN6Assimp17aiAssertViolationEPKcS1_i(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 200)
  %.pre = load ptr, ptr %0, align 8, !tbaa !5
  br label %4

4:                                                ; preds = %3, %1
  %5 = phi ptr [ %.pre, %3 ], [ %2, %1 ]
  %6 = load i8, ptr %5, align 8, !tbaa !10, !range !17, !noundef !18
  %7 = trunc nuw i8 %6 to i1
  ret i1 %7
}

attributes #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 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" }

!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 = !{!"_ZTSN6Assimp11CompressionE", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !12, i64 0}
!11 = !{!"_ZTSN6Assimp11Compression4implE", !12, i64 0, !13, i64 8, !16, i64 120}
!12 = !{!"bool", !8, i64 0}
!13 = !{!"_ZTS10z_stream_s", !7, i64 0, !14, i64 8, !15, i64 16, !7, i64 24, !14, i64 32, !15, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !14, i64 88, !15, i64 96, !15, i64 104}
!14 = !{!"int", !8, i64 0}
!15 = !{!"long", !8, i64 0}
!16 = !{!"_ZTSN6Assimp11Compression9FlushModeE", !8, i64 0}
!17 = !{i8 0, i8 2}
!18 = !{}


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