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[opaque pointer types] Serialize the value type for store instructions

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Without pointee types the space optimization of storing only the pointer
type and not the value type won't be viable - so add the extra type
information that would be missing.

Storeatomic coming soon.

llvm-svn: 235474
This commit is contained in:
David Blaikie 2015-04-22 04:14:42 +00:00
parent 272b8f5b73
commit 253de8b56b
3 changed files with 11 additions and 6 deletions
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3
include/llvm/Bitcode/LLVMBitCodes.h
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@ -318,7 +318,7 @@ namespace bitc {
// This store code encodes the pointer type, rather than the value type
// this is so information only available in the pointer type (e.g. address
// spaces) is retained.
FUNC_CODE_INST_STORE = 24, // STORE: [ptrty,ptr,val, align, vol]
FUNC_CODE_INST_STORE_OLD = 24, // STORE: [ptrty,ptr,val, align, vol]
// 25 is unused.
FUNC_CODE_INST_EXTRACTVAL = 26, // EXTRACTVAL: [n x operands]
FUNC_CODE_INST_INSERTVAL = 27, // INSERTVAL: [n x operands]
@ -348,6 +348,7 @@ namespace bitc {
FUNC_CODE_INST_STOREATOMIC = 42, // STORE: [ptrty,ptr,val, align, vol
// ordering, synchscope]
FUNC_CODE_INST_GEP = 43, // GEP: [inbounds, n x operands]
FUNC_CODE_INST_STORE = 44, // STORE: [ptrty,ptr,valty,val, align, vol]
};
enum UseListCodes {

12
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -4048,13 +4048,17 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_STORE: { // STORE2:[ptrty, ptr, val, align, vol]
case bitc::FUNC_CODE_INST_STORE:
case bitc::FUNC_CODE_INST_STORE_OLD: { // STORE2:[ptrty, ptr, val, align, vol]
unsigned OpNum = 0;
Value *Val, *Ptr;
if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
popValue(Record, OpNum, NextValueNo,
cast<PointerType>(Ptr->getType())->getElementType(), Val) ||
OpNum+2 != Record.size())
(BitCode == bitc::FUNC_CODE_INST_STORE
? getValueTypePair(Record, OpNum, NextValueNo, Val)
: popValue(Record, OpNum, NextValueNo,
cast<PointerType>(Ptr->getType())->getElementType(),
Val)) ||
OpNum + 2 != Record.size())
return Error("Invalid record");
unsigned Align;
if (std::error_code EC = parseAlignmentValue(Record[OpNum], Align))

2
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -1895,7 +1895,7 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
else
Code = bitc::FUNC_CODE_INST_STORE;
PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr
pushValue(I.getOperand(0), InstID, Vals, VE); // val.
PushValueAndType(I.getOperand(0), InstID, Vals, VE); // valty + val
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
if (cast<StoreInst>(I).isAtomic()) {