commit a7d1a7ce0d907885a8dadc498f338d8257940bda
author Simon Pilgrim <llvm-dev@redking.me.uk> Sat Oct 20 13:16:31 2018 +0000
committer Simon Pilgrim <llvm-dev@redking.me.uk> Sat Oct 20 13:16:31 2018 +0000
tree 14b320783d6e9d9e330422c05033ca433682505d
parent 39adc6df0d0a8367653c178cbafcd3cba35c24b1

Replace setFeature macro with lambda to fix MSVC "shift count negative or too big" warnings. NFCI.

llvm-svn: 344843

llvm/lib/Support/Host.cpp

diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index ebf03cc..91e98a3 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -884,15 +884,16 @@
   unsigned Features3 = 0;
   unsigned EAX, EBX;
 
-#define setFeature(F)              \
-  do {                             \
-    if (F < 32)                    \
-      Features |= 1 << F;          \
-    else if (F < 64)               \
-      Features2 |= 1 << (F - 32);  \
-    else if (F < 96)               \
-      Features3 |= 1 << (F - 64);  \
-  } while (0)
+  auto setFeature = [&](unsigned F) {
+    if (F < 32)
+      Features |= 1 << F;
+    else if (F < 64)
+      Features2 |= 1 << (F - 32);
+    else if (F < 96)
+      Features3 |= 1 << (F - 64);
+    else
+      llvm_unreachable("Unexpected FeatureBit");
+  };
 
   if ((EDX >> 15) & 1)
     setFeature(X86::FEATURE_CMOV);
@@ -1004,7 +1005,6 @@
   *FeaturesOut  = Features;
   *Features2Out = Features2;
   *Features3Out = Features3;
-#undef setFeature
 }
 
 StringRef sys::getHostCPUName() {