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[opaque pointer types] Use the pointee type loaded from bitcode when constructing a LoadInst

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Now (with a few carefully placed suppressions relating to general type
serialization, etc) we can round trip a simple load through bitcode and
textual IR without calling getElementType on a PointerType.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235221 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-04-17 19:56:21 +00:00
parent 35df664ee6
commit 0f0d21e869
3 changed files with 13 additions and 8 deletions
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11
lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -4002,15 +4002,16 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
Type *Ty = nullptr;
if (OpNum + 3 == Record.size())
Ty = getTypeByID(Record[OpNum++]);
if (!Ty)
Ty = cast<PointerType>(Op->getType())->getElementType();
else if (Ty != cast<PointerType>(Op->getType())->getElementType())
return Error("Explicit load type does not match pointee type of "
"pointer operand");
unsigned Align;
if (std::error_code EC = parseAlignmentValue(Record[OpNum], Align))
return EC;
I = new LoadInst(Op, "", Record[OpNum+1], Align);
if (Ty && Ty != I->getType())
return Error("Explicit load type does not match pointee type of "
"pointer operand");
I = new LoadInst(Ty, Op, "", Record[OpNum + 1], Align);
InstructionList.push_back(I);
break;