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Do not add livein's to entry MBB twice.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34382 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-02-17 11:11:27 +00:00
parent 795d9509d5
commit e1fd6828af
1 changed files with 3 additions and 2 deletions
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5
lib/CodeGen/RegAllocLinearScan.cpp
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@ -292,8 +292,9 @@ void RA::linearScan()
} }
// A brute force way of adding live-ins to every BB. // A brute force way of adding live-ins to every BB.
for (MachineFunction::iterator MBB = mf_->begin(), E = mf_->end(); MachineFunction::iterator MBB = mf_->begin();
MBB != E; ++MBB) { ++MBB; // Skip entry MBB.
for (MachineFunction::iterator E = mf_->end(); MBB != E; ++MBB) {
unsigned StartIdx = li_->getMBBStartIdx(MBB->getNumber()); unsigned StartIdx = li_->getMBBStartIdx(MBB->getNumber());
for (IntervalPtrs::iterator i = fixed_.begin(), e = fixed_.end(); for (IntervalPtrs::iterator i = fixed_.begin(), e = fixed_.end();
i != e; ++i) i != e; ++i)