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Checkpoint SplitKit progress.

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We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110257 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-08-04 22:08:39 +00:00
parent 40e0bad331
commit 7536f72a97
3 changed files with 224 additions and 87 deletions
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7
lib/CodeGen/InlineSpiller.cpp
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@ -110,7 +110,8 @@ bool InlineSpiller::split() {
splitAnalysis_.analyze(li_);
if (const MachineLoop *loop = splitAnalysis_.getBestSplitLoop()) {
SplitEditor(splitAnalysis_, lis_, vrm_).splitAroundLoop(loop);
SplitEditor(splitAnalysis_, lis_, vrm_, *newIntervals_)
.splitAroundLoop(loop);
return true;
}
return false;
@ -372,7 +373,9 @@ void InlineSpiller::spill(LiveInterval *li,
if (li_->empty())
return;
stackSlot_ = vrm_.assignVirt2StackSlot(li->reg);
stackSlot_ = vrm_.getStackSlot(li->reg);
if (stackSlot_ == VirtRegMap::NO_STACK_SLOT)
stackSlot_ = vrm_.assignVirt2StackSlot(li->reg);
// Iterate over instructions using register.
for (MachineRegisterInfo::reg_iterator RI = mri_.reg_begin(li->reg);