; LLVM IR from Discngine/fpocket :: src (atom)

; 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.s_mm_atom_charge_a = type { [3 x i8], float }

@mm_atom_charge_ST = external hidden constant [8 x %struct.s_mm_atom_charge_a], align 16

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

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

; Function Attrs: nounwind uwtable
define dso_local float @get_charge_from_mm_atom_charge_ST(ptr noundef %0) #1 {
  %2 = alloca float, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i16, align 2
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 2, ptr %4) #3
  store i16 0, ptr %4, align 2, !tbaa !9
  br label %6

6:                                                ; preds = %26, %1
  %7 = load i16, ptr %4, align 2, !tbaa !9
  %8 = zext i16 %7 to i32
  %9 = icmp slt i32 %8, 8
  br i1 %9, label %10, label %29

10:                                               ; preds = %6
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = load i16, ptr %4, align 2, !tbaa !9
  %13 = zext i16 %12 to i64
  %14 = getelementptr inbounds [8 x %struct.s_mm_atom_charge_a], ptr @mm_atom_charge_ST, i64 0, i64 %13
  %15 = getelementptr inbounds %struct.s_mm_atom_charge_a, ptr %14, i32 0, i32 0
  %16 = getelementptr inbounds [3 x i8], ptr %15, i64 0, i64 0
  %17 = call i32 @strncmp(ptr noundef %11, ptr noundef %16, i64 noundef 2) #4
  %18 = icmp eq i32 %17, 0
  br i1 %18, label %19, label %25

19:                                               ; preds = %10
  %20 = load i16, ptr %4, align 2, !tbaa !9
  %21 = zext i16 %20 to i64
  %22 = getelementptr inbounds [8 x %struct.s_mm_atom_charge_a], ptr @mm_atom_charge_ST, i64 0, i64 %21
  %23 = getelementptr inbounds %struct.s_mm_atom_charge_a, ptr %22, i32 0, i32 1
  %24 = load float, ptr %23, align 4, !tbaa !11
  store float %24, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %30

25:                                               ; preds = %10
  br label %26

26:                                               ; preds = %25
  %27 = load i16, ptr %4, align 2, !tbaa !9
  %28 = add i16 %27, 1
  store i16 %28, ptr %4, align 2, !tbaa !9
  br label %6, !llvm.loop !14

29:                                               ; preds = %6
  store float 0.000000e+00, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %30

30:                                               ; preds = %29, %19
  call void @llvm.lifetime.end.p0(i64 2, ptr %4) #3
  %31 = load float, ptr %2, align 4
  ret float %31
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strncmp(ptr noundef, ptr noundef, i64 noundef) #2

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

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"short", !7, i64 0}
!11 = !{!12, !13, i64 4}
!12 = !{!"s_mm_atom_charge_a", !7, i64 0, !13, i64 4}
!13 = !{!"float", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

%struct.s_mm_atom_charge_a = type { [3 x i8], float }

@mm_atom_charge_ST = external hidden constant [8 x %struct.s_mm_atom_charge_a], align 16

; Function Attrs: mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local float @get_charge_from_mm_atom_charge_ST(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) @mm_atom_charge_ST, i64 noundef 2) #2
  %3 = icmp eq i32 %2, 0
  br i1 %3, label %25, label %4

4:                                                ; preds = %1
  %5 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 8), i64 noundef 2) #2
  %6 = icmp eq i32 %5, 0
  br i1 %6, label %25, label %7

7:                                                ; preds = %4
  %8 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 16), i64 noundef 2) #2
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %25, label %10

10:                                               ; preds = %7
  %11 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 24), i64 noundef 2) #2
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %25, label %13

13:                                               ; preds = %10
  %14 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 32), i64 noundef 2) #2
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %25, label %16

16:                                               ; preds = %13
  %17 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 40), i64 noundef 2) #2
  %18 = icmp eq i32 %17, 0
  br i1 %18, label %25, label %19

19:                                               ; preds = %16
  %20 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 48), i64 noundef 2) #2
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %25, label %22

22:                                               ; preds = %19
  %23 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 56), i64 noundef 2) #2
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %25, label %.loopexit

25:                                               ; preds = %22, %19, %16, %13, %10, %7, %4, %1
  %.lcssa = phi ptr [ @mm_atom_charge_ST, %1 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 8), %4 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 16), %7 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 24), %10 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 32), %13 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 40), %16 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 48), %19 ], [ getelementptr inbounds (i8, ptr @mm_atom_charge_ST, i64 56), %22 ]
  %26 = getelementptr inbounds i8, ptr %.lcssa, i64 4
  %27 = load float, ptr %26, align 4, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %22, %25
  %.05 = phi float [ %27, %25 ], [ 0.000000e+00, %22 ]
  ret float %.05
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strncmp(ptr nocapture noundef, ptr nocapture noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) 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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { nounwind willreturn memory(read) }

!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, !9, i64 4}
!6 = !{!"s_mm_atom_charge_a", !7, i64 0, !9, i64 4}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"float", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass