Changes in directory llvm-poolalloc/lib/DSA:
Local.cpp updated: 1.158.2.4.2.4 -> 1.158.2.4.2.5
---
Log message:
this could be bad, but it doesn't trigger
---
Diffs of the changes: (+27 -0)
Local.cpp | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+)
Index: llvm-poolalloc/lib/DSA/Local.cpp
diff -u llvm-poolalloc/lib/DSA/Local.cpp:1.158.2.4.2.4
llvm-poolalloc/lib/DSA/Local.cpp:1.158.2.4.2.5
--- llvm-poolalloc/lib/DSA/Local.cpp:1.158.2.4.2.4 Fri Mar 9 11:27:51 2007
+++ llvm-poolalloc/lib/DSA/Local.cpp Mon Mar 12 11:41:06 2007
@@ -1451,6 +1451,33 @@
EliminateUsesOfECGlobals(*I->second, ECGlobals);
}
+#ifdef LLVA_KERNEL
+
+ // Ugly hack. kmem_cache_allocs are in the same pool also if the
kmem_cache_t's are the same
+ // this only works on global kmem_cache_ts
+ Function* KMA = M.getNamedFunction("kmem_cache_alloc");
+ if (KMA) {
+ for (Value::use_iterator ii = KMA->use_begin(), ee = KMA->use_end();
+ ii != ee; ++ii) {
+ std::map<Value*, MetaPool*> locs;
+ if (CallInst* CI = dyn_cast<CallInst>(*ii)) {
+ if (CI->getCalledFunction() == KMA &&
isa<GlobalValue>(CI->getOperand(1))) {
+ Value* V = CI->getOperand(1); //the kmem_cache_alloc
+ DSNodeHandle DSH =
DSInfo[CI->getParent()->getParent()]->getNodeForValue(CI);
+ MetaPoolHandle L(locs[V]), N(DSH.getNode()->getMP());
+ if (L.getPool() != N.getPool()) {
+ std::cerr << "kmem_cache_alloc recovered merge\n";
+ MetaPoolHandle L(locs[V]), N(DSH.getNode()->getMP());
+ locs[V]->merge(DSH.getNode()->getMP());
+ }
+ locs[V] = DSH.getNode()->getMP();
+ }
+ }
+ }
+ }
+
+#endif
+
return false;
}
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