first part of JIT support for address of labels, part of PR7264,
patch by Yuri!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108107 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/JIT/JIT.h b/lib/ExecutionEngine/JIT/JIT.h
index edae719..831f528 100644
--- a/lib/ExecutionEngine/JIT/JIT.h
+++ b/lib/ExecutionEngine/JIT/JIT.h
@@ -51,6 +51,10 @@
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 @@
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 @@
///
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 @@
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: