; LLVM IR from facebook/redex :: service/regalloc/GraphColoring.ll (ZN8regalloc14graph_coloring9Allocator5StatspLERKS2_)

; 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.regalloc::graph_coloring::Allocator::Stats" = type { i64, i64, i64, i64, i64, i64, i64 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZN8regalloc14graph_coloring9Allocator5StatspLERKS2_(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %6, i32 0, i32 0
  %8 = load i64, ptr %7, align 8, !tbaa !9
  %9 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 0
  %10 = load i64, ptr %9, align 8, !tbaa !9
  %11 = add i64 %10, %8
  store i64 %11, ptr %9, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %12, i32 0, i32 1
  %14 = load i64, ptr %13, align 8, !tbaa !12
  %15 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !12
  %17 = add i64 %16, %14
  store i64 %17, ptr %15, align 8, !tbaa !12
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %18, i32 0, i32 2
  %20 = load i64, ptr %19, align 8, !tbaa !13
  %21 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 2
  %22 = load i64, ptr %21, align 8, !tbaa !13
  %23 = add i64 %22, %20
  store i64 %23, ptr %21, align 8, !tbaa !13
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %24, i32 0, i32 3
  %26 = load i64, ptr %25, align 8, !tbaa !14
  %27 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 3
  %28 = load i64, ptr %27, align 8, !tbaa !14
  %29 = add i64 %28, %26
  store i64 %29, ptr %27, align 8, !tbaa !14
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %30, i32 0, i32 4
  %32 = load i64, ptr %31, align 8, !tbaa !15
  %33 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 4
  %34 = load i64, ptr %33, align 8, !tbaa !15
  %35 = add i64 %34, %32
  store i64 %35, ptr %33, align 8, !tbaa !15
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %36, i32 0, i32 5
  %38 = load i64, ptr %37, align 8, !tbaa !16
  %39 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 5
  %40 = load i64, ptr %39, align 8, !tbaa !16
  %41 = add i64 %40, %38
  store i64 %41, ptr %39, align 8, !tbaa !16
  %42 = load ptr, ptr %4, align 8, !tbaa !5
  %43 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %42, i32 0, i32 6
  %44 = load i64, ptr %43, align 8, !tbaa !17
  %45 = getelementptr inbounds %"struct.regalloc::graph_coloring::Allocator::Stats", ptr %5, i32 0, i32 6
  %46 = load i64, ptr %45, align 8, !tbaa !17
  %47 = add i64 %46, %44
  store i64 %47, ptr %45, align 8, !tbaa !17
  ret ptr %5
}

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" }

!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, !11, i64 0}
!10 = !{!"_ZTSN8regalloc14graph_coloring9Allocator5StatsE", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !11, i64 40, !11, i64 48}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!10, !11, i64 16}
!14 = !{!10, !11, i64 24}
!15 = !{!10, !11, i64 32}
!16 = !{!10, !11, i64 40}
!17 = !{!10, !11, 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZN8regalloc14graph_coloring9Allocator5StatspLERKS2_(ptr noundef nonnull returned align 8 dereferenceable(56) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(56) %1) local_unnamed_addr #0 align 2 {
  %3 = load <2 x i64>, ptr %1, align 8, !tbaa !5
  %4 = load <2 x i64>, ptr %0, align 8, !tbaa !5
  %5 = add <2 x i64> %4, %3
  store <2 x i64> %5, ptr %0, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 16
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load <2 x i64>, ptr %6, align 8, !tbaa !5
  %9 = load <2 x i64>, ptr %7, align 8, !tbaa !5
  %10 = add <2 x i64> %9, %8
  store <2 x i64> %10, ptr %7, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %1, i64 32
  %12 = getelementptr inbounds i8, ptr %0, i64 32
  %13 = load <2 x i64>, ptr %11, align 8, !tbaa !5
  %14 = load <2 x i64>, ptr %12, align 8, !tbaa !5
  %15 = add <2 x i64> %14, %13
  store <2 x i64> %15, ptr %12, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %1, i64 48
  %17 = load i64, ptr %16, align 8, !tbaa !9
  %18 = getelementptr inbounds i8, ptr %0, i64 48
  %19 = load i64, ptr %18, align 8, !tbaa !9
  %20 = add i64 %19, %17
  store i64 %20, ptr %18, align 8, !tbaa !9
  ret ptr %0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 48}
!10 = !{!"_ZTSN8regalloc14graph_coloring9Allocator5StatsE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass