Silence VS warnings


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19385 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 2b38911..0878e46 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -423,7 +423,7 @@
 
   DEBUG(std::cerr << "\tassigning stack slot at interval "<< *cur << ":\n");
 
-  float minWeight = HUGE_VAL;
+  float minWeight = float(HUGE_VAL);
   unsigned minReg = 0;
   const TargetRegisterClass* rc = mf_->getSSARegMap()->getRegClass(cur->reg);
   for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_),