Enable global address legalization, fixing a todo and allowing the removal
of some code. This exposes the implicit load from the stubs to the DAG, allowing
them to be optimized by the dag combiner. It also moves darwin specific stuff
out of the isel into the legalizer, and allows more to be moved to the .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24397 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 5baec74..549f453 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -428,20 +428,7 @@
}
}
- // Now check if we're dealing with a global, and whether or not we should emit
- // an optimized load or store for statics.
- if (GlobalAddressSDNode *GN = dyn_cast<GlobalAddressSDNode>(Addr)) {
- GlobalValue *GV = GN->getGlobal();
- if (!GV->hasWeakLinkage() && !GV->isExternal()) {
- Op1 = CurDAG->getTargetGlobalAddress(GV, MVT::i32);
- if (PICEnabled)
- Op2 = CurDAG->getTargetNode(PPC::ADDIS, MVT::i32, getGlobalBaseReg(),
- Op1);
- else
- Op2 = CurDAG->getTargetNode(PPC::LIS, MVT::i32, Op1);
- return false;
- }
- } else if (FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(Addr)) {
+ if (FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(Addr)) {
Op1 = getI32Imm(0);
Op2 = CurDAG->getTargetFrameIndex(FI->getIndex(), MVT::i32);
return false;
@@ -907,22 +894,6 @@
}
return CurDAG->getTargetNode(PPC::LA, MVT::i32, Tmp, CPI);
}
-#if 1
- case ISD::GlobalAddress: {
- GlobalValue *GV = cast<GlobalAddressSDNode>(N)->getGlobal();
- SDOperand Tmp;
- SDOperand GA = CurDAG->getTargetGlobalAddress(GV, MVT::i32);
- if (PICEnabled)
- Tmp = CurDAG->getTargetNode(PPC::ADDIS, MVT::i32, getGlobalBaseReg(), GA);
- else
- Tmp = CurDAG->getTargetNode(PPC::LIS, MVT::i32, GA);
-
- if (GV->hasWeakLinkage() || GV->isExternal())
- return CurDAG->getTargetNode(PPC::LWZ, MVT::i32, GA, Tmp);
- else
- return CurDAG->getTargetNode(PPC::LA, MVT::i32, Tmp, GA);
- }
-#endif
case ISD::FADD: {
MVT::ValueType Ty = N->getValueType(0);
if (!NoExcessFPPrecision) { // Match FMA ops