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-rw-r--r--lib/Bitcode/Writer/BitcodeWriter.cpp32
1 files changed, 29 insertions, 3 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 49cc56fec3..0d420fff63 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -45,6 +45,8 @@ enum {
// FUNCTION_BLOCK abbrev id's.
FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
+ FUNCTION_INST_BINOP_ABBREV,
+ FUNCTION_INST_CAST_ABBREV,
FUNCTION_INST_RET_VOID_ABBREV,
FUNCTION_INST_RET_VAL_ABBREV,
FUNCTION_INST_UNREACHABLE_ABBREV
@@ -662,13 +664,15 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
default:
if (Instruction::isCast(I.getOpcode())) {
Code = bitc::FUNC_CODE_INST_CAST;
- PushValueAndType(I.getOperand(0), InstID, Vals, VE);
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
+ AbbrevToUse = FUNCTION_INST_CAST_ABBREV;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
} else {
assert(isa<BinaryOperator>(I) && "Unknown instruction!");
Code = bitc::FUNC_CODE_INST_BINOP;
- PushValueAndType(I.getOperand(0), InstID, Vals, VE);
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
+ AbbrevToUse = FUNCTION_INST_BINOP_ABBREV;
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
}
@@ -895,7 +899,7 @@ static void WriteValueSymbolTable(const ValueSymbolTable &VST,
/// WriteFunction - Emit a function body to the module stream.
static void WriteFunction(const Function &F, ValueEnumerator &VE,
BitstreamWriter &Stream) {
- Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 3);
+ Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4);
VE.incorporateFunction(F);
SmallVector<unsigned, 64> Vals;
@@ -1072,6 +1076,28 @@ static void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Abbv) != FUNCTION_INST_LOAD_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
+ { // INST_BINOP abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_BINOP_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+ { // INST_CAST abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty
+ Log2_32_Ceil(VE.getTypes().size()+1)));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_CAST_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+
{ // INST_RET abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));