1 files changed, 12 insertions, 8 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 8a69e8ae50..e9c1431d30 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1293,14 +1293,18 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
   case Builtin::BIpow:
   case Builtin::BIpowf:
   case Builtin::BIpowl: {
-    // Rewrite sqrt to intrinsic if allowed.
-    if (!FD->hasAttr<ConstAttr>())
-      break;
-    Value *Base = EmitScalarExpr(E->getArg(0));
-    Value *Exponent = EmitScalarExpr(E->getArg(1));
-    llvm::Type *ArgType = Base->getType();
-    Value *F = CGM.getIntrinsic(Intrinsic::pow, ArgType);
-    return RValue::get(Builder.CreateCall2(F, Base, Exponent));
+    // Transform a call to pow* into a @llvm.pow.* intrinsic call, but only
+    // if the target agrees.
+    if (getTargetHooks().emitIntrinsicForPow()) {
+      if (!FD->hasAttr<ConstAttr>())
+        break;
+      Value *Base = EmitScalarExpr(E->getArg(0));
+      Value *Exponent = EmitScalarExpr(E->getArg(1));
+      llvm::Type *ArgType = Base->getType();
+      Value *F = CGM.getIntrinsic(Intrinsic::pow, ArgType);
+      return RValue::get(Builder.CreateCall2(F, Base, Exponent));
+    }
+    break;
   }
 
   case Builtin::BIfma: