From: Chris Lattner <sabre@nondot.org>
Date: Fri, 25 Apr 2008 15:47:13 +0000 (+0000)
Subject: remove the 'unused static' diagnostic from codegen.  This should be
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5827754da1773a7288480ce34bdf1f0a909fff21;p=clang

remove the 'unused static' diagnostic from codegen.  This should be
reimplemented in Sema someday.  This is tracked in PR2236.  Until then
disabling it removes some bogus diagnostics (see 2236).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50263 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/DiagnosticKinds.def b/include/clang/Basic/DiagnosticKinds.def
index a8560e1cb3..6f58ae1e82 100644
--- a/include/clang/Basic/DiagnosticKinds.def
+++ b/include/clang/Basic/DiagnosticKinds.def
@@ -1043,10 +1043,4 @@ DIAG(ext_return_missing_expr, EXTENSION,
 DIAG(ext_return_has_expr, EXTENSION,
      "void function '%0' should not return a value")
 
-//===----------------------------------------------------------------------===//
-// Codegen
-//===----------------------------------------------------------------------===//
-
-DIAG(warn_unused_static, WARNING, "static '%0' defined but not used")
-
 #undef DIAG
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 98a8aaaf86..7e5e8f06b7 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -355,14 +355,6 @@ void CodeGenModule::EmitStatics() {
       Changed = true;
     }
   } while (Changed);
-  
-  // Warn about all statics that are still unused at end of code generation.
-  for (unsigned i = 0, e = StaticDecls.size(); i != e; ++i) {
-    const NamedDecl *D = StaticDecls[i];
-    std::string Msg = D->getName();
-    getDiags().Report(Context.getFullLoc(D->getLocation()), 
-                      diag::warn_unused_static, &Msg, 1);
-  }
 }
 
 llvm::Constant *CodeGenModule::EmitGlobalInit(const Expr *Expr) {
diff --git a/test/CodeGen/unusedstatic.c b/test/CodeGen/unusedstatic.c
deleted file mode 100644
index 902596e30e..0000000000
--- a/test/CodeGen/unusedstatic.c
+++ /dev/null
@@ -1,7 +0,0 @@
-// RUN: clang %s -emit-llvm -verify
-// PR1998
-// PR2236
-static void a (void);
-void b (void) { a (); }
-static void a(void) {}
-static void c(void) {}  // expected-warning {{static 'c' defined but not used}}