; LLVM IR from qc-tum/chemtensor :: src/tensor (qnumber)

; 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"

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @qnumber_all_equal(i64 noundef %0, ptr noalias noundef %1, ptr noalias noundef %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  store i64 %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %27, %3
  %11 = load i64, ptr %8, align 8, !tbaa !5
  %12 = load i64, ptr %5, align 8, !tbaa !5
  %13 = icmp slt i64 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  store i32 2, ptr %9, align 4
  br label %30

15:                                               ; preds = %10
  %16 = load ptr, ptr %6, align 8, !tbaa !9
  %17 = load i64, ptr %8, align 8, !tbaa !5
  %18 = getelementptr inbounds i32, ptr %16, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !11
  %20 = load ptr, ptr %7, align 8, !tbaa !9
  %21 = load i64, ptr %8, align 8, !tbaa !5
  %22 = getelementptr inbounds i32, ptr %20, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !11
  %24 = icmp ne i32 %19, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %15
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %30

26:                                               ; preds = %15
  br label %27

27:                                               ; preds = %26
  %28 = load i64, ptr %8, align 8, !tbaa !5
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %8, align 8, !tbaa !5
  br label %10, !llvm.loop !13

30:                                               ; preds = %25, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %31 = load i32, ptr %9, align 4
  switch i32 %31, label %35 [
    i32 2, label %32
    i32 1, label %33
  ]

32:                                               ; preds = %30
  store i1 true, ptr %4, align 1
  br label %33

33:                                               ; preds = %32, %30
  %34 = load i1, ptr %4, align 1
  ret i1 %34

35:                                               ; preds = %30
  unreachable
}

; 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

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local zeroext i1 @qnumber_all_equal(i64 noundef %0, ptr noalias nocapture noundef readonly %1, ptr noalias nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = icmp slt i64 %0, 1
  br i1 %4, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = load i32, ptr %2, align 4, !tbaa !5
  %.not13 = icmp eq i32 %5, %6
  br i1 %.not13, label %.lr.ph15, label %._crit_edge

.lr.ph15:                                         ; preds = %.lr.ph.preheader, %.lr.ph
  %.081014 = phi i64 [ %7, %.lr.ph ], [ 0, %.lr.ph.preheader ]
  %7 = add nuw nsw i64 %.081014, 1
  %exitcond = icmp eq i64 %7, %0
  br i1 %exitcond, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph15
  %8 = getelementptr inbounds i32, ptr %1, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = getelementptr inbounds i32, ptr %2, i64 %7
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %.not = icmp eq i32 %9, %11
  br i1 %.not, label %.lr.ph15, label %._crit_edge.loopexit, !llvm.loop !9

._crit_edge.loopexit:                             ; preds = %.lr.ph15, %.lr.ph
  %12 = icmp sge i64 %7, %0
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.lr.ph.preheader, %3
  %.lcssa = phi i1 [ true, %3 ], [ false, %.lr.ph.preheader ], [ %12, %._crit_edge.loopexit ]
  ret i1 %.lcssa
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass