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add bitcode reader support for blockaddress. We can now fully

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round trip blockaddress through .ll and .bc files, so add a testcase.

There are still a bunch of places in the optimizer and other places
that need to be updated to work with these constructs, but at least
the basics are in now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85377 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-10-28 05:53:48 +00:00
parent 837e04a8bf
commit 50b136dae9
3 changed files with 52 additions and 3 deletions
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10
lib/Bitcode/Reader/BitcodeReader.h
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@ -94,7 +94,7 @@ public:
class BitcodeReaderMDValueList {
std::vector<WeakVH> MDValuePtrs;
LLVMContext& Context;
LLVMContext &Context;
public:
BitcodeReaderMDValueList(LLVMContext& C) : Context(C) {}
@ -122,7 +122,7 @@ public:
};
class BitcodeReader : public ModuleProvider {
LLVMContext& Context;
LLVMContext &Context;
MemoryBuffer *Buffer;
BitstreamReader StreamFile;
BitstreamCursor Stream;
@ -163,6 +163,12 @@ class BitcodeReader : public ModuleProvider {
/// map contains info about where to find deferred function body (in the
/// stream) and what linkage the original function had.
DenseMap<Function*, std::pair<uint64_t, unsigned> > DeferredFunctionInfo;
/// BlockAddrFwdRefs - These are blockaddr references to basic blocks. These
/// are resolved lazily when functions are loaded.
typedef std::pair<unsigned, GlobalVariable*> BlockAddrRefTy;
DenseMap<Function*, std::vector<BlockAddrRefTy> > BlockAddrFwdRefs;
public:
explicit BitcodeReader(MemoryBuffer *buffer, LLVMContext& C)
: Context(C), Buffer(buffer), ErrorString(0), ValueList(C), MDValueList(C) {