X86: stifle GCC warning

lib/Target/X86/X86TargetTransformInfo.cpp: In member function ‘virtual unsigned int {anonymous}::X86TTI::getIntImmCost(unsigned int, unsigned int, const llvm::APInt&, llvm::Type*) const’:
lib/Target/X86/X86TargetTransformInfo.cpp:920:60: warning: enumeral and non-enumeral type in conditional expression [enabled by default]

This seems like an unhelpful warning, but there doesnt seem to be a controlling
flag, so add an explicit cast to silence the warning.

llvm-svn: 210806

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
index c6f5906d661..299f9a581b8 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -917,7 +917,9 @@ unsigned X86TTI::getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm,
   if (Idx == ImmIdx) {
     unsigned NumConstants = (BitSize + 63) / 64;
     unsigned Cost = X86TTI::getIntImmCost(Imm, Ty);
-    return (Cost <= NumConstants * TCC_Basic) ? TCC_Free : Cost;
+    return (Cost <= NumConstants * TCC_Basic)
+      ? static_cast<unsigned>(TCC_Free)
+      : Cost;
   }
 
   return X86TTI::getIntImmCost(Imm, Ty);