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Bytecode format for LLVM 1.2 no longer explicitly encodes zeros in primitive

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type planes.  This saves about 5k on 176.gcc, and is needed for a subsequent
patch of mine I'm working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10908 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-01-17 23:25:43 +00:00
parent a55e040623
commit 80b97343ec
5 changed files with 38 additions and 13 deletions
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6
lib/Bytecode/Writer/SlotCalculator.cpp
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@ -406,6 +406,10 @@ int SlotCalculator::insertValue(const Value *D, bool dontIgnore) {
return doInsertValue(D);
}
static inline bool hasNullValue(unsigned TyID) {
return TyID != Type::LabelTyID && TyID != Type::TypeTyID &&
TyID != Type::VoidTyID;
}
// doInsertValue - This is a small helper function to be called only
// be insertValue.
@ -435,7 +439,7 @@ int SlotCalculator::doInsertValue(const Value *D) {
// If this is the first value to get inserted into the type plane, make sure
// to insert the implicit null value...
if (Table[Ty].empty() && Ty >= Type::FirstDerivedTyID && BuildBytecodeInfo) {
if (Table[Ty].empty() && BuildBytecodeInfo && hasNullValue(Ty)) {
Value *ZeroInitializer = Constant::getNullValue(Typ);
// If we are pushing zeroinit, it will be handled below.