From 4f4a6fcd165293c347a42b543e5e55aa42a09bb2 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Sat, 9 Jul 2011 01:02:44 +0000
Subject: [PATCH] Oops, didn't mean to commit that.

Spills should be hoisted out of loops, but we don't want to hoist them
to dominating blocks at the same loop depth. That could cause the spills
to be executed more often.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134782 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/InlineSpiller.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp
index 44e87ae9723..5547f735ba5 100644
--- a/lib/CodeGen/InlineSpiller.cpp
+++ b/lib/CodeGen/InlineSpiller.cpp
@@ -344,7 +344,7 @@ MachineInstr *InlineSpiller::traceSiblingValue(unsigned UseReg, VNInfo *UseVNI,
         // This is a valid spill location dominating UseVNI.
         // Prefer to spill at a smaller loop depth.
         unsigned Depth = Loops.getLoopDepth(MBB);
-        if (Depth <= SpillDepth) {
+        if (Depth < SpillDepth) {
           DEBUG(dbgs() << "  spill depth " << Depth << ": " << PrintReg(Reg)
                        << ':' << VNI->id << '@' << VNI->def << '\n');
           SVI.SpillReg = Reg;