6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-15 23:31:37 +00:00
Code Issues Projects Releases Wiki Activity

Fix PR9955 by only attaching load memory operands to load instructions and

Browse Source 
similarly for stores. Now "make check" passes with the MachineVerifier forced
on with the VerifyCoalescing option!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131705 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2011-05-19 23:44:34 +00:00
parent dc51575a5f
commit 5a4b3d8c8f
1 changed files with 37 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -2650,11 +2650,45 @@ SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable,
// instructions that access memory and for ComplexPatterns that match
// loads.
if (EmitNodeInfo & OPFL_MemRefs) {
// Only attach load or store memory operands if the generated
// instruction may load or store.
const TargetInstrDesc &TID = TM.getInstrInfo()->get(TargetOpc);
bool mayLoad = TID.mayLoad();
bool mayStore = TID.mayStore();
unsigned NumMemRefs = 0;
for (SmallVector<MachineMemOperand*, 2>::const_iterator I =
MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
if ((*I)->isLoad()) {
if (mayLoad)
++NumMemRefs;
} else if ((*I)->isStore()) {
if (mayStore)
++NumMemRefs;
} else {
++NumMemRefs;
}
}
MachineSDNode::mmo_iterator MemRefs =
MF->allocateMemRefsArray(MatchedMemRefs.size());
std::copy(MatchedMemRefs.begin(), MatchedMemRefs.end(), MemRefs);
MF->allocateMemRefsArray(NumMemRefs);
MachineSDNode::mmo_iterator MemRefsPos = MemRefs;
for (SmallVector<MachineMemOperand*, 2>::const_iterator I =
MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
if ((*I)->isLoad()) {
if (mayLoad)
*MemRefsPos++ = *I;
} else if ((*I)->isStore()) {
if (mayStore)
*MemRefsPos++ = *I;
} else {
*MemRefsPos++ = *I;
}
}
cast<MachineSDNode>(Res)
->setMemRefs(MemRefs, MemRefs + MatchedMemRefs.size());
->setMemRefs(MemRefs, MemRefs + NumMemRefs);
}
DEBUG(errs() << " "