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(For Chris): Fix failure where we rejected compiling stubs when lazy compilation is disabled.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37825 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-06-30 00:10:37 +00:00
parent d724dc894d
commit 9da60f92d9
1 changed files with 23 additions and 16 deletions
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39
lib/ExecutionEngine/JIT/JITEmitter.cpp
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@ -618,25 +618,32 @@ void *JITResolver::JITCompilerFn(void *Stub) {
"This is not a known stub!");
Function *F = (--I)->second;
// If disabled, emit a useful error message and abort.
if (TheJIT->isLazyCompilationDisabled()) {
cerr << "LLVM JIT requested to do lazy compilation of function '"
<< F->getName() << "' when lazy compiles are disabled!\n";
abort();
}
// If we have already code generated the function, just return the address.
void *Result = TheJIT->getPointerToGlobalIfAvailable(F);
// We might like to remove the stub from the StubToFunction map.
// We can't do that! Multiple threads could be stuck, waiting to acquire the
// lock above. As soon as the 1st function finishes compiling the function,
// the next one will be released, and needs to be able to find the function it
// needs to call.
//JR.state.getStubToFunctionMap(locked).erase(I);
if (!Result) {
// Otherwise we don't have it, do lazy compilation now.
// If lazy compilation is disabled, emit a useful error message and abort.
if (TheJIT->isLazyCompilationDisabled()) {
cerr << "LLVM JIT requested to do lazy compilation of function '"
<< F->getName() << "' when lazy compiles are disabled!\n";
abort();
}
// We might like to remove the stub from the StubToFunction map.
// We can't do that! Multiple threads could be stuck, waiting to acquire the
// lock above. As soon as the 1st function finishes compiling the function,
// the next one will be released, and needs to be able to find the function
// it needs to call.
//JR.state.getStubToFunctionMap(locked).erase(I);
DOUT << "JIT: Lazily resolving function '" << F->getName()
<< "' In stub ptr = " << Stub << " actual ptr = "
<< I->first << "\n";
DOUT << "JIT: Lazily resolving function '" << F->getName()
<< "' In stub ptr = " << Stub << " actual ptr = "
<< I->first << "\n";
void *Result = TheJIT->getPointerToFunction(F);
Result = TheJIT->getPointerToFunction(F);
}
// We don't need to reuse this stub in the future, as F is now compiled.
JR.state.getFunctionToStubMap(locked).erase(F);