; LLVM IR from SourangshuGhosh/Fluid-Simulation-for-Computer-Graphics :: src/gridindexvector.ll (ZN15GridIndexVector9getVectorERSt6vectorI9GridIndexSaIS1_EE)

; 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.GridIndex = type { i32, i32, i32 }

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i32 } @_ZN15GridIndexVectorixEi(ptr noundef nonnull align 8 dereferenceable(40), i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI9GridIndexSaIS0_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI9GridIndexSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15GridIndexVector9getVectorERSt6vectorI9GridIndexSaIS1_EE(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %struct.GridIndex, align 4
  %7 = alloca { i64, i32 }, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %8)
  call void @_ZNSt6vectorI9GridIndexSaIS0_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %21, %2
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = zext i32 %12 to i64
  %14 = call noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %8)
  %15 = icmp ult i64 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %24

17:                                               ; preds = %11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 12, ptr %6) #4
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = call { i64, i32 } @_ZN15GridIndexVectorixEi(ptr noundef nonnull align 8 dereferenceable(40) %8, i32 noundef %19)
  store { i64, i32 } %20, ptr %7, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 8 %7, i64 12, i1 false)
  call void @_ZNSt6vectorI9GridIndexSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 4 dereferenceable(12) %6)
  call void @llvm.lifetime.end.p0(i64 12, ptr %6) #4
  br label %21

21:                                               ; preds = %17
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = add i32 %22, 1
  store i32 %23, ptr %5, align 4, !tbaa !9
  br label %11, !llvm.loop !11

24:                                               ; preds = %16
  ret void
}

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" }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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.GridIndex = type { i32, i32, i32 }

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i32 } @_ZN15GridIndexVectorixEi(ptr noundef nonnull align 8 dereferenceable(40), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI9GridIndexSaIS0_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI9GridIndexSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15GridIndexVector9getVectorERSt6vectorI9GridIndexSaIS1_EE(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 align 2 {
  %3 = alloca %struct.GridIndex, align 8
  %4 = tail call noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  tail call void @_ZNSt6vectorI9GridIndexSaIS0_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %4)
  %5 = tail call noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %3, i64 8
  br label %6

._crit_edge:                                      ; preds = %6, %2
  ret void

6:                                                ; preds = %.lr.ph, %6
  %.05 = phi i32 [ 0, %.lr.ph ], [ %8, %6 ]
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %3) #3
  %7 = call { i64, i32 } @_ZN15GridIndexVectorixEi(ptr noundef nonnull align 8 dereferenceable(40) %0, i32 noundef %.05)
  %.fca.0.extract = extractvalue { i64, i32 } %7, 0
  %.fca.1.extract = extractvalue { i64, i32 } %7, 1
  store i64 %.fca.0.extract, ptr %3, align 8
  store i32 %.fca.1.extract, ptr %.sroa.2.0..sroa_idx, align 8
  call void @_ZNSt6vectorI9GridIndexSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 4 dereferenceable(12) %3)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %3) #3
  %8 = add i32 %.05, 1
  %9 = zext i32 %8 to i64
  %10 = call noundef i64 @_ZN15GridIndexVector4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %11 = icmp ugt i64 %10, %9
  br i1 %11, label %6, label %._crit_edge, !llvm.loop !5
}

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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass