; LLVM IR from hbatagelo/abcg :: abcg/external/glslang/glslang/MachineIndependent (Scan)

; 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"

@_ZN12_GLOBAL__N_110KeywordMapE = external hidden global ptr, align 8
@_ZN12_GLOBAL__N_111ReservedSetE = external hidden global ptr, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7glslang12TScanContext16deleteKeywordMapEv() #0 align 2 {
  %1 = load ptr, ptr @_ZN12_GLOBAL__N_110KeywordMapE, align 8, !tbaa !5
  %2 = icmp eq ptr %1, null
  br i1 %2, label %4, label %3

3:                                                ; preds = %0
  call void @_ZNSt13unordered_mapIPKciN12_GLOBAL__N_18str_hashENS2_6str_eqESaISt4pairIKS1_iEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #3
  call void @_ZdlPvm(ptr noundef %1, i64 noundef 56) #4
  br label %4

4:                                                ; preds = %3, %0
  store ptr null, ptr @_ZN12_GLOBAL__N_110KeywordMapE, align 8, !tbaa !5
  %5 = load ptr, ptr @_ZN12_GLOBAL__N_111ReservedSetE, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  call void @_ZNSt13unordered_setIPKcN12_GLOBAL__N_18str_hashENS2_6str_eqESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #3
  call void @_ZdlPvm(ptr noundef %5, i64 noundef 56) #4
  br label %8

8:                                                ; preds = %7, %4
  store ptr null, ptr @_ZN12_GLOBAL__N_111ReservedSetE, align 8, !tbaa !5
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden void @_ZNSt13unordered_mapIPKciN12_GLOBAL__N_18str_hashENS2_6str_eqESaISt4pairIKS1_iEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden void @_ZNSt13unordered_setIPKcN12_GLOBAL__N_18str_hashENS2_6str_eqESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 #2 = { nobuiltin 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 = { builtin 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"}


; 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"

@_ZN12_GLOBAL__N_110KeywordMapE = external hidden local_unnamed_addr global ptr, align 8
@_ZN12_GLOBAL__N_111ReservedSetE = external hidden local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7glslang12TScanContext16deleteKeywordMapEv() local_unnamed_addr #0 align 2 {
  %1 = load ptr, ptr @_ZN12_GLOBAL__N_110KeywordMapE, align 8, !tbaa !5
  %2 = icmp eq ptr %1, null
  br i1 %2, label %4, label %3

3:                                                ; preds = %0
  tail call void @_ZNSt13unordered_mapIPKciN12_GLOBAL__N_18str_hashENS2_6str_eqESaISt4pairIKS1_iEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #3
  tail call void @_ZdlPvm(ptr noundef nonnull %1, i64 noundef 56) #4
  br label %4

4:                                                ; preds = %3, %0
  store ptr null, ptr @_ZN12_GLOBAL__N_110KeywordMapE, align 8, !tbaa !5
  %5 = load ptr, ptr @_ZN12_GLOBAL__N_111ReservedSetE, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  tail call void @_ZNSt13unordered_setIPKcN12_GLOBAL__N_18str_hashENS2_6str_eqESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #3
  tail call void @_ZdlPvm(ptr noundef nonnull %5, i64 noundef 56) #4
  br label %8

8:                                                ; preds = %7, %4
  store ptr null, ptr @_ZN12_GLOBAL__N_111ReservedSetE, align 8, !tbaa !5
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden void @_ZNSt13unordered_mapIPKciN12_GLOBAL__N_18str_hashENS2_6str_eqESaISt4pairIKS1_iEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden void @_ZNSt13unordered_setIPKcN12_GLOBAL__N_18str_hashENS2_6str_eqESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 #2 = { nobuiltin 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 = { builtin 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"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,TailCallElimPass