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Code Issues Projects Releases Wiki Activity

further reduce the redundancy of types in the instruction encoding. This

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shrinks function bodies in kc++ from 891913B to 884073B


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36817 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-05-06 00:21:25 +00:00
parent 7337ab9e92
commit abfbf85004
2 changed files with 77 additions and 84 deletions
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32
lib/Bitcode/Writer/BitcodeWriter.cpp
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@@ -602,17 +602,15 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
default:
if (Instruction::isCast(I.getOpcode())) {
Code = bitc::FUNC_CODE_INST_CAST;
Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
} else {
assert(isa<BinaryOperator>(I) && "Unknown instruction!");
Code = bitc::FUNC_CODE_INST_BINOP;
Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
}
break;
@@ -623,28 +621,24 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
break;
case Instruction::Select:
Code = bitc::FUNC_CODE_INST_SELECT;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
PushValueAndType(I.getOperand(1), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(2)));
Vals.push_back(VE.getValueID(I.getOperand(0)));
break;
case Instruction::ExtractElement:
Code = bitc::FUNC_CODE_INST_EXTRACTELT;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
break;
case Instruction::InsertElement:
Code = bitc::FUNC_CODE_INST_INSERTELT;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ShuffleVector:
Code = bitc::FUNC_CODE_INST_SHUFFLEVEC;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
@@ -719,8 +713,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
case Instruction::Free:
Code = bitc::FUNC_CODE_INST_FREE;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
break;
case Instruction::Alloca:
@@ -740,9 +733,8 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
break;
case Instruction::Store:
Code = bitc::FUNC_CODE_INST_STORE;
Vals.push_back(VE.getTypeID(I.getOperand(1)->getType())); // Pointer
Vals.push_back(VE.getValueID(I.getOperand(0))); // val.
Vals.push_back(VE.getValueID(I.getOperand(1))); // ptr.
PushValueAndType(I.getOperand(0), InstID, Vals, VE); // val.
Vals.push_back(VE.getValueID(I.getOperand(1))); // ptr.
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
break;