[llvm-commits] [llvm] r150910 - /llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
Lang Hames
lhames at gmail.com
Sat Feb 18 19:09:55 PST 2012
Author: lhames
Date: Sat Feb 18 21:09:55 2012
New Revision: 150910
URL: http://llvm.org/viewvc/llvm-project?rev=150910&view=rev
Log:
Fix TODO and trailing whitespace.
Modified:
llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=150910&r1=150909&r2=150910&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Sat Feb 18 21:09:55 2012
@@ -1047,12 +1047,16 @@
void moveAllOperandsFrom(MachineInstr* MI, SlotIndex OldIdx) {
// Collect the operands.
RangeSet Entering, Internal, Exiting;
- collectRanges(MI, Entering, Internal, Exiting, OldIdx);
+ bool hasRegMaskOp = false;
+ collectRanges(MI, Entering, Internal, Exiting, hasRegMaskOp, OldIdx);
moveAllEnteringFrom(OldIdx, Entering);
moveAllInternalFrom(OldIdx, Internal);
moveAllExitingFrom(OldIdx, Exiting);
+ if (hasRegMaskOp)
+ updateRegMaskSlots(OldIdx);
+
#ifndef NDEBUG
LIValidator validator;
std::for_each(Entering.begin(), Entering.end(), validator);
@@ -1061,13 +1065,6 @@
assert(validator.rangesOk() && "moveOperandsFrom broke liveness.");
#endif
-// TODO: Update reg mask slots.
-// assert((OldIdx == SlotIndex() || !MO.isRegMask()) &&
-// "Unexpected RegMask operand.");
-// if (MO.isRegMask()) {
-// updateRegMaskSlots(OldIdx);
-// continue;
-// }
}
private:
@@ -1104,11 +1101,18 @@
// Treat's MI's index as OldIdx (regardless of what it is in SlotIndexes'
// maps).
void collectRanges(MachineInstr* MI, RangeSet& Entering, RangeSet& Internal,
- RangeSet& Exiting, SlotIndex OldIdx) {
+ RangeSet& Exiting, bool& hasRegMaskOp, SlotIndex OldIdx) {
+ hasRegMaskOp = false;
for (MachineInstr::mop_iterator MOI = MI->operands_begin(),
MOE = MI->operands_end();
MOI != MOE; ++MOI) {
const MachineOperand& MO = *MOI;
+
+ if (MO.isRegMask()) {
+ hasRegMaskOp = true;
+ continue;
+ }
+
if (!MO.isReg() || MO.getReg() == 0)
continue;
@@ -1135,7 +1139,7 @@
if (LR->end > OldIdx.getDeadSlot())
Exiting.insert(std::make_pair(LI, LR));
else
- Internal.insert(std::make_pair(LI, LR));
+ Internal.insert(std::make_pair(LI, LR));
} else if (MO.isDead()) {
LiveRange* LR = LI->getLiveRangeContaining(OldIdx.getRegSlot());
assert(LR != 0 && "No dead-def range?");
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