From f6acb34d239ed2828fce6bc2c1a69d92354df73a Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 25 Jul 2006 20:40:54 +0000 Subject: - Refactor the code that resolve basic block references to a TargetJITInfo method. - Added synchronizeICache() to TargetJITInfo. It is called after each block of code is emitted to flush the icache. This ensures correct execution on targets that have separate dcache and icache. - Added PPC / Mac OS X specific code to do icache flushing. llvm-svn: 29276 --- llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'llvm/lib/ExecutionEngine') diff --git a/llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp b/llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp index 5e130167279..ecde6cfeca8 100644 --- a/llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp +++ b/llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp @@ -542,6 +542,10 @@ void *JITResolver::getFunctionStub(Function *F) { TheJIT->updateGlobalMapping(F, Stub); } + // Invalidate the icache if necessary. + TheJIT->getJITInfo(). + synchronizeICache(Stub, MCE.getCurrentPCValue()-(intptr_t)Stub); + DEBUG(std::cerr << "JIT: Stub emitted at [" << Stub << "] for function '" << F->getName() << "'\n"); @@ -559,6 +563,11 @@ void *JITResolver::getExternalFunctionStub(void *FnAddr) { if (Stub) return Stub; Stub = TheJIT->getJITInfo().emitFunctionStub(FnAddr, MCE); + + // Invalidate the icache if necessary. + TheJIT->getJITInfo(). + synchronizeICache(Stub, MCE.getCurrentPCValue()-(intptr_t)Stub); + DEBUG(std::cerr << "JIT: Stub emitted at [" << Stub << "] for external function at '" << FnAddr << "'\n"); return Stub; @@ -747,7 +756,7 @@ void JITEmitter::startFunction(MachineFunction &F) { // About to start emitting the machine code for the function. emitAlignment(std::max(F.getFunction()->getAlignment(), 8U)); TheJIT->updateGlobalMapping(F.getFunction(), CurBufferPtr); - + MBBLocations.clear(); } @@ -825,6 +834,12 @@ bool JITEmitter::finishFunction(MachineFunction &F) { } } + // Resolve BasicaBlock references. + TheJIT->getJITInfo().resolveBBRefs(*this); + + // Invalidate the icache if necessary. + TheJIT->getJITInfo().synchronizeICache(FnStart, FnEnd-FnStart); + DEBUG(std::cerr << "JIT: Finished CodeGen of [" << (void*)FnStart << "] Function: " << F.getFunction()->getName() << ": " << (FnEnd-FnStart) << " bytes of text, " -- cgit v1.2.3