Don't look for __builtin_ffs, we'll never see it from llvm-gcc and there's

not reason to include it for other front ends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22070 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/SimplifyLibCalls.cpp b/lib/Transforms/IPO/SimplifyLibCalls.cpp
index f3b28bd6cbc1ae64564b39e85496dafecc197a1a..2e4d00d69d797ada2987f5efd6b6b8f840673beb 100644 (file)
--- a/lib/Transforms/IPO/SimplifyLibCalls.cpp
+++ b/lib/Transforms/IPO/SimplifyLibCalls.cpp
@@ -1773,20 +1773,6 @@ public:
 
 } FFSLLOptimizer;
 
-/// This LibCallOptimization will simplify calls to the "__builtin_ffs" 
-/// function which is generated by the CFE (its GCC specific). 
-/// It simply uses FFSOptimization for which the transformation is
-/// identical.
-/// @brief Simplify the ffsl library function.
-struct BuiltinFFSOptimization : public FFSOptimization
-{
-public:
-  /// @brief Default Constructor
-  BuiltinFFSOptimization() : FFSOptimization("__builtin_ffs",
-      "Number of '__builtin_ffs' calls simplified") {}
-
-} BuiltinFFSOptimization;
-
 /// A function to compute the length of a null-terminated constant array of
 /// integers.  This function can't rely on the size of the constant array 
 /// because there could be a null terminator in the middle of the array.