commit d31df87f41891c9ea459282c666c6e1cab9bd4c7
author Eric Christopher <echristo@apple.com> Wed Apr 13 00:20:59 2011 +0000
committer Eric Christopher <echristo@apple.com> Wed Apr 13 00:20:59 2011 +0000
tree 4f0f9267e62ab679600f1a489f6bbab9c189bc6d
parent 066c2f495ae396ce5335e374c45b1e4ace4f2470

Temporarily revert r129408 to see if it brings the bots back.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129417 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/RegAllocFast.cpp

diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 30ecea0..7bb849e 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -442,6 +442,8 @@
   unsigned Cost = 0;
   for (const unsigned *AS = TRI->getAliasSet(PhysReg);
        unsigned Alias = *AS; ++AS) {
+    if (UsedInInstr.test(Alias))
+      return spillImpossible;
     switch (unsigned VirtReg = PhysRegState[Alias]) {
     case regDisabled:
       break;