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AsmParser: restore LLVM IR compatibility for linker_private{,_weak}

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This restores the linker_private and linker_private_weak lexemes to permit
translation of the deprecated lexmes.  The behaviour is identical to the bitcode
handling: linker_private and linker_private_weak are handled as if private had
been specified.  This enables compatibility with IR generated by LLVM 3.4.

Reported on IRC by ki9a!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205675 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool
2014-04-05 20:51:58 +00:00
parent 2c5f72b629
commit 48ee81c679
4 changed files with 25 additions and 0 deletions
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lib/AsmParser/LLParser.cpp
+13
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@@ -247,6 +247,8 @@ bool LLParser::ParseTopLevelEntities() {
// ('constant'|'global') ...
case lltok::kw_private: // OptionalLinkage
case lltok::kw_internal: // OptionalLinkage
case lltok::kw_linker_private: // Obsolete OptionalLinkage
case lltok::kw_linker_private_weak: // Obsolete OptionalLinkage
case lltok::kw_weak: // OptionalLinkage
case lltok::kw_weak_odr: // OptionalLinkage
case lltok::kw_linkonce: // OptionalLinkage
@@ -1286,6 +1288,10 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
/// ::= 'common'
/// ::= 'extern_weak'
/// ::= 'external'
///
/// Deprecated Values:
/// ::= 'linker_private'
/// ::= 'linker_private_weak'
bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
HasLinkage = false;
switch (Lex.getKind()) {
@@ -1303,6 +1309,13 @@ bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
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;
case lltok::kw_linker_private:
case lltok::kw_linker_private_weak:
Lex.Lex();
// treat linker_private and linker_private_weak as PrivateLinkage
Res = GlobalValue::PrivateLinkage;
return false;
}
Lex.Lex();
HasLinkage = true;