[PATCH] D121955: [clang] NFC: Dead code removal in SemaDecl.cpp, CheckMultiVersionFunction().

Tom Honermann via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Mar 17 14:44:37 PDT 2022


tahonermann created this revision.
tahonermann added reviewers: erichkeane, aaron.ballman.
Herald added a project: All.
tahonermann published this revision for review.
tahonermann added inline comments.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.


================
Comment at: clang/lib/Sema/SemaDecl.cpp:10919-10921
       return CheckTargetCausesMultiVersioning(S, OldFD, NewFD, NewTA,
                                               Redeclaration, OldDecl,
                                               MergeTypeWithPrevious, Previous);
----------------
These lines are what makes the removed code dead code.


This change removes dead code in the definition of CheckMultiVersionFunction()
in clang/lib/Sema/SemaDecl.cpp. The removed code was made dead by commit
fc53eb69c26cdd7efa6b629c187d04326f0448ca <https://reviews.llvm.org/rGfc53eb69c26cdd7efa6b629c187d04326f0448ca>: "Reapply 'Implement target_clones multiversioning'".
See the added code just above the code being deleted; it contains the same
return statement with the previous condition now distributed across an if
statement and a switch statement.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121955

Files:
  clang/lib/Sema/SemaDecl.cpp


Index: clang/lib/Sema/SemaDecl.cpp
===================================================================
--- clang/lib/Sema/SemaDecl.cpp
+++ clang/lib/Sema/SemaDecl.cpp
@@ -10932,11 +10932,6 @@
       break;
     }
   }
-  // Handle the target potentially causes multiversioning case.
-  if (!OldFD->isMultiVersion() && MVType == MultiVersionKind::Target)
-    return CheckTargetCausesMultiVersioning(S, OldFD, NewFD, NewTA,
-                                            Redeclaration, OldDecl,
-                                            MergeTypeWithPrevious, Previous);
 
   // At this point, we have a multiversion function decl (in OldFD) AND an
   // appropriate attribute in the current function decl.  Resolve that these are


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