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For PR761:

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Remove the Endianness and PointerSize fields from the ModuleHeader and
replace it with the DataLayout field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33529 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2007-01-26 08:10:24 +00:00
parent 4de76f4884
commit aacc35a794
3 changed files with 16 additions and 36 deletions
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28
lib/Bytecode/Reader/Reader.cpp
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@ -2014,6 +2014,13 @@ void BytecodeReader::ParseModuleGlobalInfo() {
if (Handler)
Handler->handleTargetTriple(triple);
// Read the data layout string and place into the module.
std::string datalayout = read_str();
TheModule->setDataLayout(datalayout);
// FIXME: Implement
// if (Handler)
// Handler->handleDataLayout(datalayout);
if (At != BlockEnd) {
// If the file has section info in it, read the section names now.
unsigned NumSections = read_vbr_uint();
@ -2045,31 +2052,14 @@ void BytecodeReader::ParseModuleGlobalInfo() {
/// Parse the version information and decode it by setting flags on the
/// Reader that enable backward compatibility of the reader.
void BytecodeReader::ParseVersionInfo() {
unsigned Version = read_vbr_uint();
// Unpack version number: low four bits are for flags, top bits = version
Module::Endianness Endianness;
Module::PointerSize PointerSize;
Endianness = (Version & 1) ? Module::BigEndian : Module::LittleEndian;
PointerSize = (Version & 2) ? Module::Pointer64 : Module::Pointer32;
bool hasNoEndianness = Version & 4;
bool hasNoPointerSize = Version & 8;
RevisionNum = Version >> 4;
unsigned RevisionNum = read_vbr_uint();
// We don't provide backwards compatibility in the Reader any more. To
// upgrade, the user should use llvm-upgrade.
if (RevisionNum < 7)
error("Bytecode formats < 7 are no longer supported. Use llvm-upgrade.");
if (hasNoEndianness) Endianness = Module::AnyEndianness;
if (hasNoPointerSize) PointerSize = Module::AnyPointerSize;
TheModule->setEndianness(Endianness);
TheModule->setPointerSize(PointerSize);
if (Handler) Handler->handleVersionInfo(RevisionNum, Endianness, PointerSize);
if (Handler) Handler->handleVersionInfo(RevisionNum);
}
/// Parse a whole module.