From e1fd6828afee1cb3df1e1206aeb10cbb5021547f Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Sat, 17 Feb 2007 11:11:27 +0000 Subject: 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 --- lib/CodeGen/RegAllocLinearScan.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'lib/CodeGen/RegAllocLinearScan.cpp') 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) -- cgit v1.2.3-18-g5258