Fix comparison of mixed signedness

177774 broke the lld-x86_64-darwin11 builder; error:
error: comparison of integers of different signs: 'int' and 'size_type' (aka 'unsigned long')
  for (SI = 0; SI < Scavenged.size(); ++SI)
               ~~ ^ ~~~~~~~~~~~~~~~~

Fix this by making SI also unsigned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177780 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index be338540600d7b195639bae6a49b66dea8cd10cd..b54bf7ddf77c943ad642de496f78ae8e392d77e8 100644 (file)
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -366,7 +366,7 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC,
   }
 
   // Find an available scavenging slot.
-  int SI;
+  unsigned SI;
   for (SI = 0; SI < Scavenged.size(); ++SI)
     if (Scavenged[SI].Reg == 0)
       break;