[ADT] Force inline several super boring and unusually hot methods on

SmallVector to further help debug builds not waste their time calling
one line functions.

To give you an idea of why this is worthwhile, this change alone gets
another >10% reduction in the runtime of TripleTest.Normalization! It's
now under 9 seconds for me. Sadly, this is the end of the easy wins for
that test. Anything further will require some different architecture of
the test itself. Still, I'm pretty happy. 'check-llvm' now is under 35s
for me.

llvm-svn: 247259

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/include/llvm/ADT/SmallVector.h b/llvm/include/llvm/ADT/SmallVector.h
index b9384702c3b..d1062acbbb6 100644
--- a/llvm/include/llvm/ADT/SmallVector.h
+++ b/llvm/include/llvm/ADT/SmallVector.h
@@ -109,9 +109,13 @@ public:
   typedef const T *const_pointer;
 
   // forward iterator creation methods.
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   iterator begin() { return (iterator)this->BeginX; }
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   const_iterator begin() const { return (const_iterator)this->BeginX; }
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   iterator end() { return (iterator)this->EndX; }
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   const_iterator end() const { return (const_iterator)this->EndX; }
 protected:
   iterator capacity_ptr() { return (iterator)this->CapacityX; }
@@ -124,6 +128,7 @@ public:
   reverse_iterator rend()              { return reverse_iterator(begin()); }
   const_reverse_iterator rend() const { return const_reverse_iterator(begin());}
 
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   size_type size() const { return end()-begin(); }
   size_type max_size() const { return size_type(-1) / sizeof(T); }
 
@@ -135,10 +140,12 @@ public:
   /// Return a pointer to the vector's buffer, even if empty().
   const_pointer data() const { return const_pointer(begin()); }
 
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   reference operator[](size_type idx) {
     assert(idx < size());
     return begin()[idx];
   }
+  LLVM_ATTRIBUTE_ALWAYS_INLINE
   const_reference operator[](size_type idx) const {
     assert(idx < size());
     return begin()[idx];