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[ThinLTO] Remove unused/incomplete lazy summary reading support (NFC)

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This removes the interfaces added (and not yet complete) to support
lazy reading of summaries. This support is not expected to be needed
since we are moving to a model where the full index is only being
traversed in the thin link step, instead of the back ends.

(The second part of this that I plan to do next is remove the
GlobalValueInfo from the ModuleSummaryIndex - it was mostly needed to
support lazy parsing of summaries. The index can instead reference the
summary structures directly.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267097 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Teresa Johnson
2016-04-22 01:52:00 +00:00
parent 14eb0b531d
commit acfba51b27
5 changed files with 16 additions and 110 deletions
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22
lib/Object/ModuleSummaryIndexObjectFile.cpp
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@@ -83,8 +83,7 @@ bool ModuleSummaryIndexObjectFile::hasGlobalValueSummaryInMemBuffer(
// module summary/index.
ErrorOr<std::unique_ptr<ModuleSummaryIndexObjectFile>>
ModuleSummaryIndexObjectFile::create(
MemoryBufferRef Object, DiagnosticHandlerFunction DiagnosticHandler,
bool IsLazy) {
MemoryBufferRef Object, DiagnosticHandlerFunction DiagnosticHandler) {
std::unique_ptr<ModuleSummaryIndex> Index;
ErrorOr<MemoryBufferRef> BCOrErr = findBitcodeInMemBuffer(Object);
@@ -92,7 +91,7 @@ ModuleSummaryIndexObjectFile::create(
return BCOrErr.getError();
ErrorOr<std::unique_ptr<ModuleSummaryIndex>> IOrErr =
getModuleSummaryIndex(BCOrErr.get(), DiagnosticHandler, IsLazy);
getModuleSummaryIndex(BCOrErr.get(), DiagnosticHandler);
if (std::error_code EC = IOrErr.getError())
return EC;
@@ -103,23 +102,6 @@ ModuleSummaryIndexObjectFile::create(
std::move(Index));
}
// Parse the summary information for value with the
// given name out of the given buffer. Parsed information is
// stored on the index object saved in this object.
std::error_code ModuleSummaryIndexObjectFile::findGlobalValueSummaryInMemBuffer(
MemoryBufferRef Object, DiagnosticHandlerFunction DiagnosticHandler,
StringRef ValueName) {
sys::fs::file_magic Type = sys::fs::identify_magic(Object.getBuffer());
switch (Type) {
case sys::fs::file_magic::bitcode: {
return readGlobalValueSummary(Object, DiagnosticHandler, ValueName,
std::move(Index));
}
default:
return object_error::invalid_file_type;
}
}
// Parse the module summary index out of an IR file and return the summary
// index object if found, or nullptr if not.
ErrorOr<std::unique_ptr<ModuleSummaryIndex>> llvm::getModuleSummaryIndexForFile(