Fixed a test that ensures the LocalRewriter does not attempt to

avoid reloads by reusing clobbered registers.

This was causing issues in 256.bzip2 when compiled with PIC for
a while (starting at r78217), though the problem has since been masked. 

llvm-svn: 80872

2 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/RegAllocPBQP.cpp b/llvm/lib/CodeGen/RegAllocPBQP.cpp
index 853192ca9d2..e85a5ac7043 100644
--- a/llvm/lib/CodeGen/RegAllocPBQP.cpp
+++ b/llvm/lib/CodeGen/RegAllocPBQP.cpp
@@ -269,7 +269,7 @@ PBQP::Matrix* PBQPRegAlloc::buildInterferenceMatrix(
       unsigned reg2 = *a2Itr;
 
       // If the row/column regs are identical or alias insert an infinity.
-      if ((reg1 == reg2) || tri->areAliases(reg1, reg2)) {
+      if (tri->regsOverlap(reg1, reg2)) {
         (*m)[ri][ci] = std::numeric_limits<PBQP::PBQPNum>::infinity();
         isZeroMatrix = false;
       }
diff --git a/llvm/lib/CodeGen/VirtRegRewriter.cpp b/llvm/lib/CodeGen/VirtRegRewriter.cpp
index 6da6a9b9f06..79b366ca8d0 100644
--- a/llvm/lib/CodeGen/VirtRegRewriter.cpp
+++ b/llvm/lib/CodeGen/VirtRegRewriter.cpp
@@ -797,7 +797,7 @@ unsigned ReuseInfo::GetRegForReload(const TargetRegisterClass *RC,
       // value aliases the new register. If so, codegen the previous reload
       // and use this one.          
       unsigned PRRU = Op.PhysRegReused;
-      if (TRI->areAliases(PRRU, PhysReg)) {
+      if (TRI->regsOverlap(PRRU, PhysReg)) {
         // Okay, we found out that an alias of a reused register
         // was used.  This isn't good because it means we have
         // to undo a previous reuse.