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Add a stack slot coloring pass. Not yet enabled.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51934 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-06-04 09:18:41 +00:00
parent d8a46e3a74
commit 3f32d65912
10 changed files with 523 additions and 47 deletions
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18
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -65,6 +65,7 @@ void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
}
void LiveIntervals::releaseMemory() {
MBB2IdxMap.clear();
Idx2MBBMap.clear();
mi2iMap_.clear();
i2miMap_.clear();
@ -229,8 +230,8 @@ bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
void LiveIntervals::print(std::ostream &O, const Module* ) const {
O << "********** INTERVALS **********\n";
for (const_iterator I = begin(), E = end(); I != E; ++I) {
I->second.print(DOUT, tri_);
DOUT << "\n";
I->second.print(O, tri_);
O << "\n";
}
O << "********** MACHINEINSTRS **********\n";
@ -1160,17 +1161,6 @@ bool LiveIntervals::anyKillInMBBAfterIdx(const LiveInterval &li,
return false;
}
static const VNInfo *findDefinedVNInfo(const LiveInterval &li, unsigned DefIdx) {
const VNInfo *VNI = NULL;
for (LiveInterval::const_vni_iterator i = li.vni_begin(),
e = li.vni_end(); i != e; ++i)
if ((*i)->def == DefIdx) {
VNI = *i;
break;
}
return VNI;
}
/// RewriteInfo - Keep track of machine instrs that will be rewritten
/// during spilling.
namespace {
@ -1318,7 +1308,7 @@ rewriteInstructionsForSpills(const LiveInterval &li, bool TrySplit,
HasKill = anyKillInMBBAfterIdx(li, I->valno, MBB, getDefIndex(index));
else {
// If this is a two-address code, then this index starts a new VNInfo.
const VNInfo *VNI = findDefinedVNInfo(li, getDefIndex(index));
const VNInfo *VNI = li.findDefinedVNInfo(getDefIndex(index));
if (VNI)
HasKill = anyKillInMBBAfterIdx(li, VNI, MBB, getDefIndex(index));
}