2 files changed, 22 insertions, 25 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
index fbfb7b42c9..fecc389307 100644
--- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
@@ -137,27 +137,6 @@ struct IsAsciiOpt : public LibCallOptimization {
 };
 
 //===---------------------------------------===//
-// 'abs', 'labs', 'llabs' Optimizations
-
-struct AbsOpt : public LibCallOptimization {
-  virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) {
-    FunctionType *FT = Callee->getFunctionType();
-    // We require integer(integer) where the types agree.
-    if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() ||
-        FT->getParamType(0) != FT->getReturnType())
-      return 0;
-
-    // abs(x) -> x >s -1 ? x : -x
-    Value *Op = CI->getArgOperand(0);
-    Value *Pos = B.CreateICmpSGT(Op, Constant::getAllOnesValue(Op->getType()),
-                                 "ispos");
-    Value *Neg = B.CreateNeg(Op, "neg");
-    return B.CreateSelect(Pos, Op, Neg);
-  }
-};
-
-
-//===---------------------------------------===//
 // 'toascii' Optimizations
 
 struct ToAsciiOpt : public LibCallOptimization {
@@ -542,7 +521,7 @@ namespace {
 
     StringMap<LibCallOptimization*> Optimizations;
     // Integer Optimizations
-    AbsOpt Abs; IsDigitOpt IsDigit; IsAsciiOpt IsAscii;
+    IsDigitOpt IsDigit; IsAsciiOpt IsAscii;
     ToAsciiOpt ToAscii;
     // Formatting and IO Optimizations
     SPrintFOpt SPrintF; PrintFOpt PrintF;
@@ -603,9 +582,6 @@ void SimplifyLibCalls::AddOpt(LibFunc::Func F1, LibFunc::Func F2,
 /// we know.
 void SimplifyLibCalls::InitOptimizations() {
   // Integer Optimizations
-  Optimizations["abs"] = &Abs;
-  Optimizations["labs"] = &Abs;
-  Optimizations["llabs"] = &Abs;
   Optimizations["isdigit"] = &IsDigit;
   Optimizations["isascii"] = &IsAscii;
   Optimizations["toascii"] = &ToAscii;
diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp
index dd623dc9a1..ec98e93b29 100644
--- a/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -1250,6 +1250,23 @@ struct FFSOpt : public LibCallOptimization {
   }
 };
 
+struct AbsOpt : public LibCallOptimization {
+  virtual Value *callOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) {
+    FunctionType *FT = Callee->getFunctionType();
+    // We require integer(integer) where the types agree.
+    if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() ||
+        FT->getParamType(0) != FT->getReturnType())
+      return 0;
+
+    // abs(x) -> x >s -1 ? x : -x
+    Value *Op = CI->getArgOperand(0);
+    Value *Pos = B.CreateICmpSGT(Op, Constant::getAllOnesValue(Op->getType()),
+                                 "ispos");
+    Value *Neg = B.CreateNeg(Op, "neg");
+    return B.CreateSelect(Pos, Op, Neg);
+  }
+};
+
 } // End anonymous namespace.
 
 namespace llvm {
@@ -1298,6 +1315,7 @@ class LibCallSimplifierImpl {
 
   // Integer library call optimizations.
   FFSOpt FFS;
+  AbsOpt Abs;
 
   void initOptimizations();
   void addOpt(LibFunc::Func F, LibCallOptimization* Opt);
@@ -1413,6 +1431,9 @@ void LibCallSimplifierImpl::initOptimizations() {
   addOpt(LibFunc::ffs, &FFS);
   addOpt(LibFunc::ffsl, &FFS);
   addOpt(LibFunc::ffsll, &FFS);
+  addOpt(LibFunc::abs, &Abs);
+  addOpt(LibFunc::labs, &Abs);
+  addOpt(LibFunc::llabs, &Abs);
 }
 
 Value *LibCallSimplifierImpl::optimizeCall(CallInst *CI) {