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Don't ever call materializeAllPermanently during LTO.

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To do this, change the representation of lazy loaded functions.

The previous representation cannot differentiate between a function whose body
has been removed and one whose body hasn't been read from the .bc file. That
means that in order to drop a function, the entire body had to be read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220580 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-10-24 18:13:04 +00:00
parent 51fa1bcef3
commit 68b02dcd54
14 changed files with 76 additions and 77 deletions
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12
lib/Object/IRObjectFile.cpp
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@ -204,16 +204,6 @@ std::error_code IRObjectFile::printSymbolName(raw_ostream &OS,
return object_error::success;
}
static bool isDeclaration(const GlobalValue &V) {
if (V.hasAvailableExternallyLinkage())
return true;
if (V.isMaterializable())
return false;
return V.isDeclaration();
}
uint32_t IRObjectFile::getSymbolFlags(DataRefImpl Symb) const {
const GlobalValue *GV = getGV(Symb);
@ -224,7 +214,7 @@ uint32_t IRObjectFile::getSymbolFlags(DataRefImpl Symb) const {
}
uint32_t Res = BasicSymbolRef::SF_None;
if (isDeclaration(*GV))
if (GV->isDeclarationForLinker())
Res |= BasicSymbolRef::SF_Undefined;
if (GV->hasPrivateLinkage())
Res |= BasicSymbolRef::SF_FormatSpecific;