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path: root/test/Sema/warn-unused-function.c
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2012-09-06c: make __attribute__((unused)) transitive.Fariborz Jahanian
Don't warn if annotated decl is used inside another unused. // rdar://12233989 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163329 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-19We regard a function as 'unused' from the codegen perspective, so our ↵Argyrios Kyrtzidis
warnings diverge from gcc's unused warnings which don't get emitted if the function is referenced even in an unevaluated context (e.g. in templates, sizeof, etc.). Also, saying that a function is 'unused' because it won't get codegen'ed is somewhat misleading. - Don't emit 'unused' warnings for functions that are referenced in any part of the user's code. - A warning that an internal function/variable won't get emitted is useful though, so introduce -Wunneeded-internal-declaration which will warn if a function/variable with internal linkage is not "needed" ('used' from the codegen perspective), e.g: static void foo() { } template <int> void bar() { foo(); } test.cpp:1:13: warning: function 'foo' is not needed and will not be emitted static void foo() { } ^ Addresses rdar://8733476. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Mark functions referenced by 'cleanup' attribute as used. Fixes rdar://8728293Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Recursive functions should be marked when used from another function. Fixes ↵Argyrios Kyrtzidis
http://llvm.org/PR7923. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15Commit improved version of 111026 & 111027.Argyrios Kyrtzidis
Unused warnings for functions: -static functions -functions in anonymous namespace -class methods in anonymous namespace -class method specializations in anonymous namespace -function specializations in anonymous namespace Unused warnings for variables: -static variables -variables in anonymous namespace -static data members in anonymous namespace -static data members specializations in anonymous namespace Reveals lots of opportunities for dead code removal in llvm codebase that will interest my esteemed colleagues. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Revert 111026 & 111027, build breakage.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Expand the unused warnings for functions. Warn for:Argyrios Kyrtzidis
-static function declarations -functions in anonymous namespace -class methods in anonymous namespace -class method specializations in anonymous namespace -function specializations in anonymous namespace git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Don't warn about unused static functions if they are marked with Chris Lattner
attr constructor or destructor. Patch by Jean-Daniel Dupas! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Include all warnings under '-Wunused' in '-Wmost' and '-Wall'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17Do not add functions marked with the unused attribute to the list of unused ↵Tanya Lattner
functions to warn about. Update test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17Fix unused function warning to handle used attributes and redeclarations. ↵Tanya Lattner
Update test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16Disable warn_unused_function for now, its breaking various project builds due toDaniel Dunbar
false positives. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12Implementing unused function warning.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95940 91177308-0d34-0410-b5e6-96231b3b80d8
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