Require an alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26072 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/MachineConstantPool.h b/include/llvm/CodeGen/MachineConstantPool.h
index 1bbf88d843bd17e8907bb6f5d0afb601b380a3b3..0d12984ad6fae4fe89dcb5bb055be3a7f8ef0def 100644 (file)
--- a/include/llvm/CodeGen/MachineConstantPool.h
+++ b/include/llvm/CodeGen/MachineConstantPool.h
@@ -34,18 +34,15 @@ class MachineConstantPool {
 public:
 
   /// getConstantPoolIndex - Create a new entry in the constant pool or return
-  /// an existing one. User may specify an alignment that is greater than the
-  /// default alignment. If one is not specified, it will be 0.
+  /// an existing one.  User must specify an alignment in bytes for the object.
   ///
-  unsigned getConstantPoolIndex(Constant *C, unsigned Alignment = 0) {
+  unsigned getConstantPoolIndex(Constant *C, unsigned Alignment) {
     // Check to see if we already have this constant.
     //
     // FIXME, this could be made much more efficient for large constant pools.
     for (unsigned i = 0, e = Constants.size(); i != e; ++i)
-      if (Constants[i].first == C) {
-        Constants[i].second = std::max(Constants[i].second, Alignment);
+      if (Constants[i].first == C && Constants[i].second >= Alignment)
         return i;
-      }
     Constants.push_back(std::make_pair(C, Alignment));
     return Constants.size()-1;
   }