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Add an "ATTRIBUTE_UNUSED" macro (and use it). It's for variables which are

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mainly used in debugging and/or assert situations. It should make the compiler
and the static analyzer stop nagging us about them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92181 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2009-12-28 01:20:29 +00:00
parent 8688888787
commit 079b6f5ee5
2 changed files with 8 additions and 1 deletions
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6
include/llvm/Support/Compiler.h
View File

@ -29,6 +29,12 @@
#define ATTRIBUTE_USED
#endif
#if (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
#define ATTRIBUTE_UNUSED __attribute__((__unused__))
#else
#define ATTRIBUTE_UNUSED
#endif
#ifdef __GNUC__ // aka 'ATTRIBUTE_CONST' but following LLVM Conventions.
#define ATTRIBUTE_READNONE __attribute__((__const__))
#else

3
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
View File

@ -15,6 +15,7 @@
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/Target/TargetAsmParser.h"
@ -666,7 +667,7 @@ bool ARMAsmParser::ParseDirectiveThumbFunc(SMLoc L) {
const AsmToken &Tok = getLexer().getTok();
if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
return Error(L, "unexpected token in .syntax directive");
StringRef SymbolName = getLexer().getTok().getIdentifier();
StringRef ATTRIBUTE_UNUSED SymbolName = getLexer().getTok().getIdentifier();
getLexer().Lex(); // Consume the identifier token.
if (getLexer().isNot(AsmToken::EndOfStatement))