- 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp
index 5e13016..ecde6cf 100644
--- a/lib/ExecutionEngine/JIT/JITEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp
@@ -542,6 +542,10 @@
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 @@
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 @@
// 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 @@
}
}
+ // 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, "