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Fix a compile-time regression introduced by my heuristic-changing patch. I forgot

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to multiply the instruction count by a constant factor in a few places, which
caused the register allocator to require many more iterations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53959 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2008-07-23 19:47:27 +00:00
parent 1a24539405
commit 496bac5b08
4 changed files with 5 additions and 4 deletions
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2
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -1793,7 +1793,7 @@ addIntervalsForSpills(const LiveInterval &li,
for (unsigned i = 0, e = NewLIs.size(); i != e; ++i) {
LiveInterval *LI = NewLIs[i];
if (!LI->empty()) {
LI->weight /= getApproximateInstructionCount(*LI);
LI->weight /= InstrSlots::NUM * getApproximateInstructionCount(*LI);
if (!AddedKill.count(LI)) {
LiveRange *LR = &LI->ranges[LI->ranges.size()-1];
unsigned LastUseIdx = getBaseIndex(LR->end);