Make static variables const if possible. Makes them go into a read-only section.

Or fold them into a initializer list which has the same effect. NFC.

llvm-svn: 231598

2 files changed, 4 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/InterferenceCache.cpp b/llvm/lib/CodeGen/InterferenceCache.cpp
index 187e0159a71..fd5749bfefa 100644
--- a/llvm/lib/CodeGen/InterferenceCache.cpp
+++ b/llvm/lib/CodeGen/InterferenceCache.cpp
@@ -21,7 +21,8 @@ using namespace llvm;
 #define DEBUG_TYPE "regalloc"
 
 // Static member used for null interference cursors.
-InterferenceCache::BlockInterference InterferenceCache::Cursor::NoInterference;
+const InterferenceCache::BlockInterference
+    InterferenceCache::Cursor::NoInterference;
 
 // Initializes PhysRegEntries (instead of a SmallVector, PhysRegEntries is a
 // buffer of size NumPhysRegs to speed up alloc/clear for targets with large
diff --git a/llvm/lib/CodeGen/InterferenceCache.h b/llvm/lib/CodeGen/InterferenceCache.h
index 1791afbe6c2..6519a806e57 100644
--- a/llvm/lib/CodeGen/InterferenceCache.h
+++ b/llvm/lib/CodeGen/InterferenceCache.h
@@ -170,8 +170,8 @@ public:
   /// Cursor - The primary query interface for the block interference cache.
   class Cursor {
     Entry *CacheEntry;
-    BlockInterference *Current;
-    static BlockInterference NoInterference;
+    const BlockInterference *Current;
+    static const BlockInterference NoInterference;
 
     void setEntry(Entry *E) {
       Current = nullptr;