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[opaque pointer type] Bitcode support for explicit type parameter on the gep operator

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This happened to be fairly easy to support backwards compatibility based
on the number of operands (old format had an even number, new format has
one more operand so an odd number).

test/Bitcode/old-aliases.ll already appears to test old gep operators
(if I remove the backwards compatibility in the BitcodeReader, this and
another test fail) so I'm not adding extra test coverage here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232216 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-03-13 21:03:36 +00:00
parent 75cc2505da
commit 1f48a55e86
3 changed files with 21 additions and 7 deletions
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7
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -1522,15 +1522,18 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
Record.push_back(Flags);
}
break;
case Instruction::GetElementPtr:
case Instruction::GetElementPtr: {
Code = bitc::CST_CODE_CE_GEP;
if (cast<GEPOperator>(C)->isInBounds())
const auto *GO = cast<GEPOperator>(C);
if (GO->isInBounds())
Code = bitc::CST_CODE_CE_INBOUNDS_GEP;
Record.push_back(VE.getTypeID(GO->getSourceElementType()));
for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) {
Record.push_back(VE.getTypeID(C->getOperand(i)->getType()));
Record.push_back(VE.getValueID(C->getOperand(i)));
}
break;
}
case Instruction::Select:
Code = bitc::CST_CODE_CE_SELECT;
Record.push_back(VE.getValueID(C->getOperand(0)));