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[pr19844] Add thread local mode to aliases.

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This matches gcc's behavior. It also seems natural given that aliases
contain other properties that govern how it is accessed (linkage,
visibility, dll storage).

Clang still has to be updated to expose this feature to C.

llvm-svn: 209759
This commit is contained in:
Rafael Espindola
2014-05-28 18:15:43 +00:00
parent 55c91dae6c
commit acdb307db3
18 changed files with 143 additions and 111 deletions
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lib/Bitcode/Writer/BitcodeWriter.cpp
+3 -1
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@@ -511,7 +511,7 @@ static unsigned getEncodedDLLStorageClass(const GlobalValue &GV) {
llvm_unreachable("Invalid DLL storage class");
}
static unsigned getEncodedThreadLocalMode(const GlobalVariable &GV) {
static unsigned getEncodedThreadLocalMode(const GlobalValue &GV) {
switch (GV.getThreadLocalMode()) {
case GlobalVariable::NotThreadLocal: return 0;
case GlobalVariable::GeneralDynamicTLSModel: return 1;
@@ -668,6 +668,8 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
Vals.push_back(getEncodedLinkage(A));
Vals.push_back(getEncodedVisibility(A));
Vals.push_back(getEncodedDLLStorageClass(A));
if (A.isThreadLocal())
Vals.push_back(getEncodedThreadLocalMode(A));
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse);
Vals.clear();