; LLVM IR from doyubkim/fluid-engine-dev :: src/jet/cell_centered_scalar_grid2.ll (ZN3jet23CellCenteredScalarGrid24swapEPNS_5Grid2E)

; 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"

@_ZTVN3jet23CellCenteredScalarGrid2E = external dso_local unnamed_addr constant { [17 x ptr], [10 x ptr] }, align 8

; 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
define dso_local void @_ZN3jet23CellCenteredScalarGrid24swapEPNS_5Grid2E(ptr noundef nonnull align 8 dereferenceable(240) %0, ptr noundef %1) unnamed_addr #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %13, label %9

9:                                                ; preds = %2
  %10 = load ptr, ptr %7, align 8, !tbaa !9
  %11 = icmp eq ptr %10, getelementptr inbounds inrange(-16, 64) ({ [17 x ptr], [10 x ptr] }, ptr @_ZTVN3jet23CellCenteredScalarGrid2E, i32 0, i32 1, i32 2)
  %12 = getelementptr inbounds i8, ptr %7, i64 -8
  br i1 %11, label %14, label %13

13:                                               ; preds = %9, %2
  br label %14

14:                                               ; preds = %13, %9
  %15 = phi ptr [ %12, %9 ], [ null, %13 ]
  store ptr %15, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %18, label %20

18:                                               ; preds = %14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN3jet11ScalarGrid214swapScalarGridEPS0_(ptr noundef nonnull align 8 dereferenceable(240) %6, ptr noundef %19)
  br label %20

20:                                               ; preds = %18, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret void
}

declare void @_ZN3jet11ScalarGrid214swapScalarGridEPS0_(ptr noundef nonnull align 8 dereferenceable(240), ptr noundef) #2

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 = { "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 = !{!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 = !{!"vtable pointer", !8, i64 0}


; 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"

@_ZTVN3jet23CellCenteredScalarGrid2E = external dso_local unnamed_addr constant { [17 x ptr], [10 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3jet23CellCenteredScalarGrid24swapEPNS_5Grid2E(ptr noundef nonnull align 8 dereferenceable(240) %0, ptr noundef %1) unnamed_addr #0 align 2 {
  %3 = icmp eq ptr %1, null
  br i1 %3, label %.thread, label %4

4:                                                ; preds = %2
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = icmp eq ptr %5, getelementptr inbounds inrange(-16, 64) (i8, ptr @_ZTVN3jet23CellCenteredScalarGrid2E, i64 152)
  br i1 %6, label %7, label %.thread

7:                                                ; preds = %4
  %8 = getelementptr inbounds i8, ptr %1, i64 -8
  tail call void @_ZN3jet11ScalarGrid214swapScalarGridEPS0_(ptr noundef nonnull align 8 dereferenceable(240) %0, ptr noundef nonnull %8)
  br label %.thread

.thread:                                          ; preds = %4, %2, %7
  ret void
}

declare void @_ZN3jet11ScalarGrid214swapScalarGridEPS0_(ptr noundef nonnull align 8 dereferenceable(240), ptr noundef) local_unnamed_addr #1

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 = { "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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,TailCallElimPass