Fix VS2017 narrowing conversion warning. NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319240 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64LegalizerInfo.cpp b/lib/Target/AArch64/AArch64LegalizerInfo.cpp
index b04031530a291cdc69abe8bc36616d76326422f6..54d1109a08f5624862f32459f10f76cbb30bea01 100644 (file)
--- a/lib/Target/AArch64/AArch64LegalizerInfo.cpp
+++ b/lib/Target/AArch64/AArch64LegalizerInfo.cpp
@@ -355,7 +355,7 @@ AArch64LegalizerInfo::AArch64LegalizerInfo(const AArch64Subtarget &ST) {
       setAction({G_ATOMIC_CMPXCHG, Ty}, Legal);
     setAction({G_ATOMIC_CMPXCHG, 1, p0}, Legal);
 
-    for (auto Op :
+    for (unsigned Op :
          {G_ATOMICRMW_XCHG, G_ATOMICRMW_ADD, G_ATOMICRMW_SUB, G_ATOMICRMW_AND,
           G_ATOMICRMW_OR, G_ATOMICRMW_XOR, G_ATOMICRMW_MIN, G_ATOMICRMW_MAX,
           G_ATOMICRMW_UMIN, G_ATOMICRMW_UMAX}) {