; LLVM IR from yangfengzzz/Arche-webgpu :: vox.render/stats/frame_time_stats_provider.ll (ZN3vox22FrameTimeStatsProvider6SampleEf)

; 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.std::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"struct.vox::StatsProvider::Counter" = type { double }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3vox22FrameTimeStatsProvider6SampleEf(ptr dead_on_unwind noalias writable sret(%"class.std::unordered_map") align 8 %0, ptr noundef nonnull align 8 dereferenceable(8) %1, float noundef %2) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca float, align 4
  %7 = alloca i1, align 1
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store float %2, ptr %6, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8
  store i1 false, ptr %7, align 1
  call void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  %12 = load float, ptr %6, align 4, !tbaa !9
  %13 = fpext float %12 to double
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !11
  %14 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEixEOS1_(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %15 unwind label %18

15:                                               ; preds = %3
  %16 = getelementptr inbounds %"struct.vox::StatsProvider::Counter", ptr %14, i32 0, i32 0
  store double %13, ptr %16, align 8, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  store i1 true, ptr %7, align 1
  %17 = load i1, ptr %7, align 1
  br i1 %17, label %23, label %22

18:                                               ; preds = %3
  %19 = landingpad { ptr, i32 }
          cleanup
  %20 = extractvalue { ptr, i32 } %19, 0
  store ptr %20, ptr %9, align 8
  %21 = extractvalue { ptr, i32 } %19, 1
  store i32 %21, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  br label %24

22:                                               ; preds = %15
  call void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  br label %23

23:                                               ; preds = %22, %15
  ret void

24:                                               ; preds = %18
  %25 = load ptr, ptr %9, align 8
  %26 = load i32, ptr %10, align 4
  %27 = insertvalue { ptr, i32 } poison, ptr %25, 0
  %28 = insertvalue { ptr, i32 } %27, i32 %26, 1
  resume { ptr, i32 } %28
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEixEOS1_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = !{!"float", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_ZTSN3vox9StatIndexE", !7, i64 0}
!13 = !{!14, !15, i64 0}
!14 = !{!"_ZTSN3vox13StatsProvider7CounterE", !15, i64 0}
!15 = !{!"double", !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"

%"class.std::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3vox22FrameTimeStatsProvider6SampleEf(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::unordered_map") align 8 %0, ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %1, float noundef %2) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca i32, align 4
  tail call void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  %5 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEixEOS1_(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %6 unwind label %8

6:                                                ; preds = %3
  %7 = fpext float %2 to double
  store double %7, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  ret void

8:                                                ; preds = %3
  %9 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  resume { ptr, i32 } %9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEEixEOS1_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIN3vox9StatIndexENS0_13StatsProvider7CounterENS0_13StatIndexHashESt8equal_toIS1_ESaISt4pairIKS1_S3_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = !{!"_ZTSN3vox9StatIndexE", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSN3vox13StatsProvider7CounterE", !11, i64 0}
!11 = !{!"double", !7, i64 0}


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