Add support for writing bytecode files with compactiontables for bytecode files.
This shrinks the bytecode file for 176.gcc by about 200K (10%), and 254.gap by
about 167K, a 25% reduction. There is still a lot of room for improvement in
the encoding of the compaction table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10915 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Writer/InstructionWriter.cpp b/lib/Bytecode/Writer/InstructionWriter.cpp
index 0bf555d..b93a812 100644
--- a/lib/Bytecode/Writer/InstructionWriter.cpp
+++ b/lib/Bytecode/Writer/InstructionWriter.cpp
@@ -202,7 +202,7 @@
output(Bits, Out);
}
-void BytecodeWriter::processInstruction(const Instruction &I) {
+void BytecodeWriter::outputInstruction(const Instruction &I) {
assert(I.getOpcode() < 62 && "Opcode too big???");
unsigned Opcode = I.getOpcode();
@@ -216,9 +216,8 @@
int MaxOpSlot = 0;
int Slots[3]; Slots[0] = (1 << 12)-1; // Marker to signify 0 operands
- for (unsigned i = 0; i < NumOperands; ++i) {
- const Value *Def = I.getOperand(i);
- int slot = Table.getSlot(Def);
+ for (unsigned i = 0; i != NumOperands; ++i) {
+ int slot = Table.getSlot(I.getOperand(i));
assert(slot != -1 && "Broken bytecode!");
if (slot > MaxOpSlot) MaxOpSlot = slot;
if (i < 3) Slots[i] = slot;