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Split the locking out of JIT::runJITOnFunction so that callers 

that already hold the lock can call an entry point that doesn't
re-acquire the lock.

llvm-svn: 63965
This commit is contained in:
Dan Gohman 2009-02-06 21:25:08 +00:00
parent 1b32e0bbc2
commit 21cb4114fb
2 changed files with 9 additions and 5 deletions
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9
llvm/lib/ExecutionEngine/JIT/JIT.cpp
View File

@ -475,9 +475,12 @@ GenericValue JIT::runFunction(Function *F,
/// GlobalAddress[F] with the address of F's machine code.
///
void JIT::runJITOnFunction(Function *F) {
static bool isAlreadyCodeGenerating = false;
MutexGuard locked(lock);
runJITOnFunctionUnlocked(F, locked);
}
void JIT::runJITOnFunctionUnlocked(Function *F, const MutexGuard &locked) {
static bool isAlreadyCodeGenerating = false;
assert(!isAlreadyCodeGenerating && "Error: Recursive compilation detected!");
// JIT the function
@ -537,7 +540,7 @@ void *JIT::getPointerToFunction(Function *F) {
return Addr;
}
runJITOnFunction(F);
runJITOnFunctionUnlocked(F, locked);
void *Addr = getPointerToGlobalIfAvailable(F);
assert(Addr && "Code generation didn't add function to GlobalAddress table!");

5
llvm/lib/ExecutionEngine/JIT/JIT.h
View File

@ -147,8 +147,9 @@ public:
private:
static MachineCodeEmitter *createEmitter(JIT &J, JITMemoryManager *JMM);
void runJITOnFunction (Function *F);
void runJITOnFunction(Function *F);
void runJITOnFunctionUnlocked(Function *F, const MutexGuard &locked);
protected:
/// getMemoryforGV - Allocate memory for a global variable.