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LiveInterval: Use range based for loops for subregister ranges.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223991 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun
2014-12-11 00:59:06 +00:00
parent d1db29860c
commit 1bfcc2d56f
9 changed files with 110 additions and 126 deletions
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22
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -395,9 +395,8 @@ bool LiveIntervals::shrinkToUses(LiveInterval *li,
&& "Can only shrink virtual registers");
// Shrink subregister live ranges.
for (LiveInterval::subrange_iterator I = li->subrange_begin(),
E = li->subrange_end(); I != E; ++I) {
shrinkToUses(*I, li->reg);
for (LiveInterval::SubRange &S : li->subranges()) {
shrinkToUses(S, li->reg);
}
// Find all the values used, including PHI kills.
@ -606,9 +605,8 @@ void LiveIntervals::pruneValue(LiveInterval &LI, SlotIndex Kill,
SmallVectorImpl<SlotIndex> *EndPoints) {
pruneValue((LiveRange&)LI, Kill, EndPoints);
for (LiveInterval::subrange_iterator SR = LI.subrange_begin(),
SE = LI.subrange_end(); SR != SE; ++SR) {
pruneValue(*SR, Kill, nullptr);
for (LiveInterval::SubRange &SR : LI.subranges()) {
pruneValue(SR, Kill, nullptr);
}
}
@ -882,11 +880,10 @@ public:
if (LI.hasSubRanges()) {
unsigned SubReg = MO->getSubReg();
unsigned LaneMask = TRI.getSubRegIndexLaneMask(SubReg);
for (LiveInterval::subrange_iterator S = LI.subrange_begin(),
SE = LI.subrange_end(); S != SE; ++S) {
if ((S->LaneMask & LaneMask) == 0)
for (LiveInterval::SubRange &S : LI.subranges()) {
if ((S.LaneMask & LaneMask) == 0)
continue;
updateRange(*S, Reg, S->LaneMask);
updateRange(S, Reg, S.LaneMask);
}
}
updateRange(LI, Reg, 0);
@ -1322,9 +1319,8 @@ LiveIntervals::repairIntervalsInRange(MachineBasicBlock *MBB,
if (!LI.hasAtLeastOneValue())
continue;
for (LiveInterval::subrange_iterator S = LI.subrange_begin(),
SE = LI.subrange_end(); S != SE; ++S) {
repairOldRegInRange(Begin, End, endIdx, *S, Reg, S->LaneMask);
for (LiveInterval::SubRange &S : LI.subranges()) {
repairOldRegInRange(Begin, End, endIdx, S, Reg, S.LaneMask);
}
repairOldRegInRange(Begin, End, endIdx, LI, Reg);
}