From: Andrew Trick <atrick@apple.com>
Date: Fri, 29 Nov 2013 23:49:38 +0000 (+0000)
Subject: Reverse the order of eviction checks for possible compile time savings. No functionality.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4dc7377b20bb9a1dbdd009bd5a8ff15492e1ff07;p=oota-llvm.git

Reverse the order of eviction checks for possible compile time savings. No functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195969 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 27dc07b54c9..3a02aaec344 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -627,6 +627,9 @@ bool RAGreedy::canEvictInterference(LiveInterval &VirtReg, unsigned PhysReg,
         return false;
       if (Urgent)
         continue;
+      // Apply the eviction policy for non-urgent evictions.
+      if (!shouldEvict(VirtReg, IsHint, *Intf, BreaksHint))
+        return false;
       // If !MaxCost.isMax(), then we're just looking for a cheap register.
       // Evicting another local live range in this case could lead to suboptimal
       // coloring.
@@ -634,9 +637,6 @@ bool RAGreedy::canEvictInterference(LiveInterval &VirtReg, unsigned PhysReg,
           !canReassign(*Intf, PhysReg)) {
         return false;
       }
-      // Finally, apply the eviction policy for non-urgent evictions.
-      if (!shouldEvict(VirtReg, IsHint, *Intf, BreaksHint))
-        return false;
     }
   }
   MaxCost = Cost;