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add some abbrevs for ret and unreachable, shrinking kc++ from 2717360->2705388 

llvm-svn: 36823
This commit is contained in:
Chris Lattner 2007-05-06 01:28:01 +00:00
parent 9ee4836dde
commit cc6d4c9fc2
1 changed files with 31 additions and 3 deletions
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34
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -43,7 +43,10 @@ enum {
CONSTANTS_NULL_Abbrev,
// FUNCTION_BLOCK abbrev id's.
FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV
FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
FUNCTION_INST_RET_VOID_ABBREV,
FUNCTION_INST_RET_VAL_ABBREV,
FUNCTION_INST_UNREACHABLE_ABBREV
};
@ -697,8 +700,10 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
case Instruction::Ret:
Code = bitc::FUNC_CODE_INST_RET;
if (I.getNumOperands())
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
if (!I.getNumOperands())
AbbrevToUse = FUNCTION_INST_RET_VOID_ABBREV;
else if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
AbbrevToUse = FUNCTION_INST_RET_VAL_ABBREV;
break;
case Instruction::Br:
Code = bitc::FUNC_CODE_INST_BR;
@ -740,6 +745,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
break;
case Instruction::Unreachable:
Code = bitc::FUNC_CODE_INST_UNREACHABLE;
AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV;
break;
case Instruction::PHI:
@ -1056,6 +1062,28 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Abbv) != FUNCTION_INST_LOAD_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
{ // INST_RET abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_RET_VOID_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
{ // INST_RET abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ValID
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_RET_VAL_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
{ // INST_UNREACHABLE abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_UNREACHABLE));
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
Stream.ExitBlock();
}