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Handle MaterializeAll in getLazyBitcodeModuleImpl. NFC.

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This just handles both cases in the same place.

Extracted from a patch by Karl Schimpf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239870 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2015-06-17 00:40:56 +00:00
parent 4a4558e436
commit 485973a45e
1 changed files with 11 additions and 15 deletions
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26
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -4603,11 +4603,11 @@ const std::error_category &llvm::BitcodeErrorCategory() {
/// \a parseBitcodeFile(). If this is truly lazy, then we need to eagerly pull
/// in forward-referenced functions from block address references.
///
/// \param[in] WillMaterializeAll Set to \c true if the caller promises to
/// materialize everything -- in particular, if this isn't truly lazy.
/// \param[in] MaterializeAll Set to \c true if we should materialize
/// everything.
static ErrorOr<std::unique_ptr<Module>>
getLazyBitcodeModuleImpl(std::unique_ptr<MemoryBuffer> &&Buffer,
LLVMContext &Context, bool WillMaterializeAll,
LLVMContext &Context, bool MaterializeAll,
DiagnosticHandlerFunction DiagnosticHandler,
bool ShouldLazyLoadMetadata = false) {
std::unique_ptr<Module> M =
@ -4626,10 +4626,15 @@ getLazyBitcodeModuleImpl(std::unique_ptr<MemoryBuffer> &&Buffer,
R->parseBitcodeInto(nullptr, M.get(), ShouldLazyLoadMetadata))
return cleanupOnError(EC);
if (!WillMaterializeAll)
if (MaterializeAll) {
// Read in the entire module, and destroy the BitcodeReader.
if (std::error_code EC = M->materializeAllPermanently())
return EC;
} else {
// Resolve forward references from blockaddresses.
if (std::error_code EC = R->materializeForwardReferencedFunctions())
return cleanupOnError(EC);
}
Buffer.release(); // The BitcodeReader owns it now.
return std::move(M);
@ -4657,19 +4662,10 @@ ErrorOr<std::unique_ptr<Module>>
llvm::parseBitcodeFile(MemoryBufferRef Buffer, LLVMContext &Context,
DiagnosticHandlerFunction DiagnosticHandler) {
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Buffer, false);
ErrorOr<std::unique_ptr<Module>> ModuleOrErr = getLazyBitcodeModuleImpl(
std::move(Buf), Context, true, DiagnosticHandler);
if (!ModuleOrErr)
return ModuleOrErr;
std::unique_ptr<Module> &M = ModuleOrErr.get();
// Read in the entire module, and destroy the BitcodeReader.
if (std::error_code EC = M->materializeAllPermanently())
return EC;
return getLazyBitcodeModuleImpl(std::move(Buf), Context, true,
DiagnosticHandler);
// TODO: Restore the use-lists to the in-memory state when the bitcode was
// written. We must defer until the Module has been fully materialized.
return std::move(M);
}
std::string