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Simplify LLParser::ParseOptionalLinkage. NFC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269080 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2016-05-10 17:16:45 +00:00
parent d91145c2d6
commit 3bd20c6a9f
1 changed files with 34 additions and 19 deletions
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53
lib/AsmParser/LLParser.cpp
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@ -1530,6 +1530,37 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
}
}
static unsigned parseOptionalLinkageAux(lltok::Kind Kind, bool &HasLinkage) {
HasLinkage = true;
switch (Kind) {
default:
HasLinkage = false;
return GlobalValue::ExternalLinkage;
case lltok::kw_private:
return GlobalValue::PrivateLinkage;
case lltok::kw_internal:
return GlobalValue::InternalLinkage;
case lltok::kw_weak:
return GlobalValue::WeakAnyLinkage;
case lltok::kw_weak_odr:
return GlobalValue::WeakODRLinkage;
case lltok::kw_linkonce:
return GlobalValue::LinkOnceAnyLinkage;
case lltok::kw_linkonce_odr:
return GlobalValue::LinkOnceODRLinkage;
case lltok::kw_available_externally:
return GlobalValue::AvailableExternallyLinkage;
case lltok::kw_appending:
return GlobalValue::AppendingLinkage;
case lltok::kw_common:
return GlobalValue::CommonLinkage;
case lltok::kw_extern_weak:
return GlobalValue::ExternalWeakLinkage;
case lltok::kw_external:
return GlobalValue::ExternalLinkage;
}
}
/// ParseOptionalLinkage
/// ::= /*empty*/
/// ::= 'private'
@ -1544,25 +1575,9 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
/// ::= 'extern_weak'
/// ::= 'external'
bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
HasLinkage = false;
switch (Lex.getKind()) {
default: Res=GlobalValue::ExternalLinkage; return false;
case lltok::kw_private: Res = GlobalValue::PrivateLinkage; break;
case lltok::kw_internal: Res = GlobalValue::InternalLinkage; break;
case lltok::kw_weak: Res = GlobalValue::WeakAnyLinkage; break;
case lltok::kw_weak_odr: Res = GlobalValue::WeakODRLinkage; break;
case lltok::kw_linkonce: Res = GlobalValue::LinkOnceAnyLinkage; break;
case lltok::kw_linkonce_odr: Res = GlobalValue::LinkOnceODRLinkage; break;
case lltok::kw_available_externally:
Res = GlobalValue::AvailableExternallyLinkage;
break;
case lltok::kw_appending: Res = GlobalValue::AppendingLinkage; break;
case lltok::kw_common: Res = GlobalValue::CommonLinkage; break;
case lltok::kw_extern_weak: Res = GlobalValue::ExternalWeakLinkage; break;
case lltok::kw_external: Res = GlobalValue::ExternalLinkage; break;
}
Lex.Lex();
HasLinkage = true;
Res = parseOptionalLinkageAux(Lex.getKind(), HasLinkage);
if (HasLinkage)
Lex.Lex();
return false;
}