; LLVM IR from Try/Tempest :: Engine/libspirv (libspirv)

; 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.libspirv::MutableBytecode::Iterator" = type { %"struct.libspirv::Bytecode::Iterator.base", ptr }
%"struct.libspirv::Bytecode::Iterator.base" = type <{ ptr, i32 }>

; 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) #0

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

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8libspirv15MutableBytecode11findSectionENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48), i8 noundef zeroext) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8libspirv15MutableBytecode11findSectionENS0_8IteratorENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48), ptr noundef byval(%"struct.libspirv::MutableBytecode::Iterator") align 8, i8 noundef zeroext) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8libspirv15MutableBytecode14findSectionEndENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(48) %1, i8 noundef zeroext %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca %"struct.libspirv::MutableBytecode::Iterator", align 8
  %7 = alloca %"struct.libspirv::MutableBytecode::Iterator", align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store i8 %2, ptr %5, align 1, !tbaa !9
  %8 = load ptr, ptr %4, align 8
  %9 = load i8, ptr %5, align 1, !tbaa !9
  call void @_ZN8libspirv15MutableBytecode11findSectionENS_8Bytecode7SectionE(ptr dead_on_unwind writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(48) %8, i8 noundef zeroext %9)
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %7, ptr align 8 %0, i64 24, i1 false)
  %10 = load i8, ptr %5, align 1, !tbaa !9
  %11 = zext i8 %10 to i32
  %12 = add nsw i32 %11, 1
  %13 = trunc i32 %12 to i8
  call void @_ZN8libspirv15MutableBytecode11findSectionENS0_8IteratorENS_8Bytecode7SectionE(ptr dead_on_unwind writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %6, ptr noundef nonnull align 8 dereferenceable(48) %8, ptr noundef byval(%"struct.libspirv::MutableBytecode::Iterator") align 8 %7, i8 noundef zeroext %13)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %0, ptr align 8 %6, i64 24, i1 false)
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #3
  ret void
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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" }
attributes #3 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"_ZTSN8libspirv8Bytecode7SectionE", !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"

%"struct.libspirv::MutableBytecode::Iterator" = type { %"struct.libspirv::Bytecode::Iterator.base", ptr }
%"struct.libspirv::Bytecode::Iterator.base" = type <{ ptr, i32 }>

; 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) #0

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

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8libspirv15MutableBytecode11findSectionENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48), i8 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8libspirv15MutableBytecode11findSectionENS0_8IteratorENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48), ptr noundef byval(%"struct.libspirv::MutableBytecode::Iterator") align 8, i8 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8libspirv15MutableBytecode14findSectionEndENS_8Bytecode7SectionE(ptr dead_on_unwind noalias writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(48) %1, i8 noundef zeroext %2) local_unnamed_addr #2 align 2 {
  %4 = alloca %"struct.libspirv::MutableBytecode::Iterator", align 8
  tail call void @_ZN8libspirv15MutableBytecode11findSectionENS_8Bytecode7SectionE(ptr dead_on_unwind writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(48) %1, i8 noundef zeroext %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #3
  %5 = add i8 %2, 1
  call void @_ZN8libspirv15MutableBytecode11findSectionENS0_8IteratorENS_8Bytecode7SectionE(ptr dead_on_unwind nonnull writable sret(%"struct.libspirv::MutableBytecode::Iterator") align 8 %4, ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull byval(%"struct.libspirv::MutableBytecode::Iterator") align 8 %0, i8 noundef zeroext %5)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %4, i64 24, i1 false)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  ret void
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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" }
attributes #3 = { 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)"}


; Effective O3 passes: DSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass