diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2007-02-17 11:11:27 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-02-17 11:11:27 +0000 |
| commit | e1fd6828afee1cb3df1e1206aeb10cbb5021547f (patch) | |
| tree | 19e4e861f93af5bed72dcbdef89c10b43a4752d8 /lib/CodeGen/RegAllocLinearScan.cpp | |
| parent | 795d9509d5e11dcbbb355260d993b4a15c2be073 (diff) | |
Do not add livein's to entry MBB twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34382 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLinearScan.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp index bd44e81244..3a1bfc25fe 100644 --- a/lib/CodeGen/RegAllocLinearScan.cpp +++ b/lib/CodeGen/RegAllocLinearScan.cpp @@ -292,8 +292,9 @@ void RA::linearScan() } // A brute force way of adding live-ins to every BB. - for (MachineFunction::iterator MBB = mf_->begin(), E = mf_->end(); - MBB != E; ++MBB) { + MachineFunction::iterator MBB = mf_->begin(); + ++MBB; // Skip entry MBB. + for (MachineFunction::iterator E = mf_->end(); MBB != E; ++MBB) { unsigned StartIdx = li_->getMBBStartIdx(MBB->getNumber()); for (IntervalPtrs::iterator i = fixed_.begin(), e = fixed_.end(); i != e; ++i) |