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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-23 17:28:19 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-23 17:28:19 +0000 |
| commit | 8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd (patch) | |
| tree | aa761eb31c1f7c14a3c9e313f4a1d29ea06e066b /lib/AsmParser | |
| parent | f39fe46062d2093fc3d7c092bc8c4561b744164c (diff) | |
| download | external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.zip external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.tar.gz external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.tar.bz2 | |
Use address-taken to disambiguate global variable and indirect memops.
Major steps include:
1). introduces a not-addr-taken bit-field in GlobalVariable
2). GlobalOpt pass sets "not-address-taken" if it proves a global varirable
dosen't have its address taken.
3). AA use this info for disambiguation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193251 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AsmParser')
| -rw-r--r-- | lib/AsmParser/LLLexer.cpp | 1 | ||||
| -rw-r--r-- | lib/AsmParser/LLParser.cpp | 4 | ||||
| -rw-r--r-- | lib/AsmParser/LLToken.h | 1 |
3 files changed, 5 insertions, 1 deletions
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp index 99bff45..6d643b6 100644 --- a/lib/AsmParser/LLLexer.cpp +++ b/lib/AsmParser/LLLexer.cpp @@ -504,6 +504,7 @@ lltok::Kind LLLexer::LexIdentifier() { KEYWORD(zeroinitializer); KEYWORD(undef); KEYWORD(null); + KEYWORD(notaddrtaken); KEYWORD(to); KEYWORD(tail); KEYWORD(target); diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp index 74c0ea4..9b5fb27 100644 --- a/lib/AsmParser/LLParser.cpp +++ b/lib/AsmParser/LLParser.cpp @@ -704,7 +704,7 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, unsigned Linkage, bool HasLinkage, unsigned Visibility) { unsigned AddrSpace; - bool IsConstant, UnnamedAddr, IsExternallyInitialized; + bool IsConstant, UnnamedAddr, IsExternallyInitialized, notAddrTaken; GlobalVariable::ThreadLocalMode TLM; LocTy UnnamedAddrLoc; LocTy IsExternallyInitializedLoc; @@ -719,6 +719,7 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, IsExternallyInitialized, &IsExternallyInitializedLoc) || ParseGlobalType(IsConstant) || + ParseOptionalToken(lltok::kw_notaddrtaken, notAddrTaken) || ParseType(Ty, TyLoc)) return true; @@ -776,6 +777,7 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, GV->setLinkage((GlobalValue::LinkageTypes)Linkage); GV->setVisibility((GlobalValue::VisibilityTypes)Visibility); GV->setExternallyInitialized(IsExternallyInitialized); + GV->setAddressMaybeTaken(!notAddrTaken); GV->setThreadLocalMode(TLM); GV->setUnnamedAddr(UnnamedAddr); diff --git a/lib/AsmParser/LLToken.h b/lib/AsmParser/LLToken.h index e1382fd..7832e81 100644 --- a/lib/AsmParser/LLToken.h +++ b/lib/AsmParser/LLToken.h @@ -51,6 +51,7 @@ namespace lltok { kw_localdynamic, kw_initialexec, kw_localexec, kw_zeroinitializer, kw_undef, kw_null, + kw_notaddrtaken, kw_to, kw_tail, kw_target, |