From 29143ec3f7c91d7e6d8aca35d073b10adfa3d07e Mon Sep 17 00:00:00 2001
From: Michael Kruse <llvm@meinersbur.de>
Date: Wed, 22 Mar 2017 17:18:39 +0000
Subject: [PATCH] [DeLICM] Remove AllElements. NFC.

It is not used and will not be used (anymore) in future commits.

llvm-svn: 298522
---
 polly/lib/Transform/DeLICM.cpp | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/polly/lib/Transform/DeLICM.cpp b/polly/lib/Transform/DeLICM.cpp
index 8264b730303e..518965047c5b 100644
--- a/polly/lib/Transform/DeLICM.cpp
+++ b/polly/lib/Transform/DeLICM.cpp
@@ -701,10 +701,6 @@ protected:
   /// Cached version of the schedule and domains.
   isl::union_map Schedule;
 
-  /// Set of all referenced elements.
-  /// { Element[] -> Element[] }
-  isl::union_set AllElements;
-
   /// Combined access relations of all MemoryKind::Array READ accesses.
   /// { DomainRead[] -> Element[] }
   isl::union_map AllReads;
@@ -945,16 +941,6 @@ protected:
     // { DomainWrite[] -> Element[] }
     auto AllWrites =
         give(isl_union_map_union(AllMustWrites.copy(), AllMayWrites.copy()));
-
-    // { Element[] }
-    AllElements = makeEmptyUnionSet();
-    foreachElt(AllWrites, [this](isl::map Write) {
-      auto Space = give(isl_map_get_space(Write.keep()));
-      auto EltSpace = give(isl_space_range(Space.take()));
-      auto EltUniv = give(isl_set_universe(EltSpace.take()));
-      AllElements =
-          give(isl_union_set_add_set(AllElements.take(), EltUniv.take()));
-    });
   }
 
   /// Print the current state of all MemoryAccesses to @p.