From ccdb3fcef9aeb9f683cd738afbe1cd961bb0c1ef Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Wed, 19 Jan 2011 22:11:48 +0000 Subject: Implement RAGreedy::splitAroundRegion and remove loop splitting. Region splitting includes loop splitting as a subset, and it is more generic. The splitting heuristics for variables that are live in more than one block are now: 1. Try to create a region that covers multiple basic blocks. 2. Try to create a new live range for each block with multiple uses. 3. Spill. Steps 2 and 3 are similar to what the standard spiller is doing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123853 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/LiveInterval.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen/LiveInterval.cpp') diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp index c6a0149516..c2dbd6ab75 100644 --- a/lib/CodeGen/LiveInterval.cpp +++ b/lib/CodeGen/LiveInterval.cpp @@ -650,7 +650,9 @@ void LiveRange::dump() const { } void LiveInterval::print(raw_ostream &OS, const TargetRegisterInfo *TRI) const { - OS << PrintReg(reg, TRI) << ',' << weight; + OS << PrintReg(reg, TRI); + if (weight != 0) + OS << ',' << weight; if (empty()) OS << " EMPTY"; -- cgit v1.2.3-70-g09d2