From 45139874a776f4fad581fc3ef81ab77b34b4f593 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Fri, 4 Feb 2011 00:39:20 +0000 Subject: [PATCH] Also compute interference intervals for blocks with no uses. When the live range is live through a block that doesn't use the register, but that has interference, region splitting wants to split at the top and bottom of the basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124839 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/RegAllocGreedy.cpp | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 92f97d046f5..2c772a20975 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -611,9 +611,7 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg, unsigned PhysReg, if (!IntI.valid()) continue; for (unsigned i = 0, e = LiveBlocks.size(); i != e; ++i) { - BlockInfo &BI = LiveBlocks[i]; - if (!BI.Uses) - continue; + const BlockInfo &BI = LiveBlocks[i]; IndexPair &IP = InterferenceRanges[i]; SlotIndex Start, Stop; tie(Start, Stop) = Indexes->getMBBRange(BI.MBB);