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first part of JIT support for address of labels, part of PR7264,

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patch by Yuri!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108107 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-07-11 23:07:28 +00:00
parent b162290e39
commit 68feb22ad8
3 changed files with 81 additions and 13 deletions
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30
lib/ExecutionEngine/JIT/JIT.h
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@@ -51,6 +51,10 @@ public:
class JIT : public ExecutionEngine {
/// types
typedef ValueMap<const BasicBlock *, void *>
BasicBlockAddressMapTy;
/// data
TargetMachine &TM; // The current target we are compiling to
TargetJITInfo &TJI; // The JITInfo for the target we are compiling to
JITCodeEmitter *JCE; // JCE object
@@ -67,6 +71,12 @@ class JIT : public ExecutionEngine {
JITState *jitstate;
/// BasicBlockAddressMap - A mapping between LLVM basic blocks and their
/// actualized version, only filled for basic blocks that have their address
/// taken.
BasicBlockAddressMapTy BasicBlockAddressMap;
JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
JITMemoryManager *JMM, CodeGenOpt::Level OptLevel,
bool AllocateGVsWithCode);
@@ -127,10 +137,15 @@ public:
///
void *getPointerToFunction(Function *F);
void *getPointerToBasicBlock(BasicBlock *BB) {
assert(0 && "JIT does not support address-of-label yet!");
return 0;
}
/// addPointerToBasicBlock - Adds address of the specific basic block.
void addPointerToBasicBlock(const BasicBlock *BB, void *Addr);
/// clearPointerToBasicBlock - Removes address of specific basic block.
void clearPointerToBasicBlock(const BasicBlock *BB);
/// getPointerToBasicBlock - This returns the address of the specified basic
/// block, assuming function is compiled.
void *getPointerToBasicBlock(BasicBlock *BB);
/// getOrEmitGlobalVariable - Return the address of the specified global
/// variable, possibly emitting it to memory if needed. This is used by the
@@ -197,11 +212,18 @@ public:
const JITEvent_EmittedFunctionDetails &Details);
void NotifyFreeingMachineCode(void *OldPtr);
BasicBlockAddressMapTy &
getBasicBlockAddressMap(const MutexGuard &) {
return BasicBlockAddressMap;
}
private:
static JITCodeEmitter *createEmitter(JIT &J, JITMemoryManager *JMM,
TargetMachine &tm);
void runJITOnFunctionUnlocked(Function *F, const MutexGuard &locked);
void updateFunctionStub(Function *F);
void jitTheFunction(Function *F, const MutexGuard &locked);
protected: