; LLVM IR from Slingshot-Physics/slingshot-community :: common/math/src/heap_matrix.ll (ZN10HeapMatrixpLEf)

; 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.HeapMatrix = type { i32, i32, i32, i32, i32, [12 x i8], ptr, [8 x i8] }

; 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: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN10HeapMatrixclEjj(ptr noundef nonnull align 16 dereferenceable(40), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 16 dereferenceable(40) ptr @_ZN10HeapMatrixpLEf(ptr noundef nonnull align 16 dereferenceable(40) %0, float noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca float, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store float %1, ptr %4, align 4, !tbaa !9
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !11
  br label %9

9:                                                ; preds = %33, %2
  %10 = load i32, ptr %5, align 4, !tbaa !11
  %11 = getelementptr inbounds %class.HeapMatrix, ptr %8, i32 0, i32 0
  %12 = load i32, ptr %11, align 16, !tbaa !13
  %13 = icmp ult i32 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %36

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 0, ptr %7, align 4, !tbaa !11
  br label %16

16:                                               ; preds = %29, %15
  %17 = load i32, ptr %7, align 4, !tbaa !11
  %18 = getelementptr inbounds %class.HeapMatrix, ptr %8, i32 0, i32 1
  %19 = load i32, ptr %18, align 4, !tbaa !15
  %20 = icmp ult i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %32

22:                                               ; preds = %16
  %23 = load float, ptr %4, align 4, !tbaa !9
  %24 = load i32, ptr %5, align 4, !tbaa !11
  %25 = load i32, ptr %7, align 4, !tbaa !11
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN10HeapMatrixclEjj(ptr noundef nonnull align 16 dereferenceable(40) %8, i32 noundef %24, i32 noundef %25)
  %27 = load float, ptr %26, align 4, !tbaa !9
  %28 = fadd float %27, %23
  store float %28, ptr %26, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %22
  %30 = load i32, ptr %7, align 4, !tbaa !11
  %31 = add i32 %30, 1
  store i32 %31, ptr %7, align 4, !tbaa !11
  br label %16, !llvm.loop !16

32:                                               ; preds = %21
  br label %33

33:                                               ; preds = %32
  %34 = load i32, ptr %5, align 4, !tbaa !11
  %35 = add i32 %34, 1
  store i32 %35, ptr %5, align 4, !tbaa !11
  br label %9, !llvm.loop !18

36:                                               ; preds = %14
  ret ptr %8
}

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 = { 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 = !{!"int", !7, i64 0}
!13 = !{!14, !12, i64 0}
!14 = !{!"_ZTS10HeapMatrix", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16, !6, i64 32}
!15 = !{!14, !12, i64 4}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = distinct !{!18, !17}


; 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 uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN10HeapMatrixclEjj(ptr noundef nonnull align 16 dereferenceable(40), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 16 dereferenceable(40) ptr @_ZN10HeapMatrixpLEf(ptr noundef nonnull returned align 16 dereferenceable(40) %0, float noundef %1) local_unnamed_addr #0 align 2 {
  %3 = load i32, ptr %0, align 16, !tbaa !5
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge10, label %.preheader.lr.ph

.preheader.lr.ph:                                 ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = load i32, ptr %4, align 4, !tbaa !11
  %.not11 = icmp eq i32 %5, 0
  br i1 %.not11, label %._crit_edge10, label %.preheader

.preheader:                                       ; preds = %.preheader.lr.ph, %._crit_edge
  %6 = phi i32 [ %8, %._crit_edge ], [ %3, %.preheader.lr.ph ]
  %7 = phi i32 [ %9, %._crit_edge ], [ 1, %.preheader.lr.ph ]
  %.079 = phi i32 [ %10, %._crit_edge ], [ 0, %.preheader.lr.ph ]
  %.not12 = icmp eq i32 %7, 0
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge10:                                    ; preds = %._crit_edge, %.preheader.lr.ph, %2
  ret ptr %0

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %.pre = load i32, ptr %0, align 16, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %8 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ %6, %.preheader ]
  %9 = phi i32 [ %16, %._crit_edge.loopexit ], [ 0, %.preheader ]
  %10 = add nuw i32 %.079, 1
  %11 = icmp ult i32 %10, %8
  br i1 %11, label %.preheader, label %._crit_edge10, !llvm.loop !12

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.08 = phi i32 [ %15, %.lr.ph ], [ 0, %.preheader ]
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN10HeapMatrixclEjj(ptr noundef nonnull align 16 dereferenceable(40) %0, i32 noundef %.079, i32 noundef %.08)
  %13 = load float, ptr %12, align 4, !tbaa !15
  %14 = fadd float %13, %1
  store float %14, ptr %12, align 4, !tbaa !15
  %15 = add nuw i32 %.08, 1
  %16 = load i32, ptr %4, align 4, !tbaa !11
  %17 = icmp ult i32 %15, %16
  br i1 %17, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !17
}

attributes #0 = { 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" }

!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, !7, i64 0}
!6 = !{!"_ZTS10HeapMatrix", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 32}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = distinct !{!12, !13, !14}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!"llvm.loop.unswitch.partial.disable"}
!15 = !{!16, !16, i64 0}
!16 = !{!"float", !8, i64 0}
!17 = distinct !{!17, !13}


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