[CodeGen] NVPTX: Switch from atomic.load.add.f32 to atomicrmw fadd
llvm-svn: 365798
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 52e2d5b..086785f 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -13472,24 +13472,12 @@
// success flag.
return MakeAtomicCmpXchgValue(*this, E, /*ReturnBool=*/false);
- case NVPTX::BI__nvvm_atom_add_gen_f: {
- Value *Ptr = EmitScalarExpr(E->getArg(0));
- Value *Val = EmitScalarExpr(E->getArg(1));
- // atomicrmw only deals with integer arguments so we need to use
- // LLVM's nvvm_atomic_load_add_f32 intrinsic for that.
- Function *FnALAF32 =
- CGM.getIntrinsic(Intrinsic::nvvm_atomic_load_add_f32, Ptr->getType());
- return Builder.CreateCall(FnALAF32, {Ptr, Val});
- }
-
+ case NVPTX::BI__nvvm_atom_add_gen_f:
case NVPTX::BI__nvvm_atom_add_gen_d: {
Value *Ptr = EmitScalarExpr(E->getArg(0));
Value *Val = EmitScalarExpr(E->getArg(1));
- // atomicrmw only deals with integer arguments, so we need to use
- // LLVM's nvvm_atomic_load_add_f64 intrinsic.
- Function *FnALAF64 =
- CGM.getIntrinsic(Intrinsic::nvvm_atomic_load_add_f64, Ptr->getType());
- return Builder.CreateCall(FnALAF64, {Ptr, Val});
+ return Builder.CreateAtomicRMW(llvm::AtomicRMWInst::FAdd, Ptr, Val,
+ AtomicOrdering::SequentiallyConsistent);
}
case NVPTX::BI__nvvm_atom_inc_gen_ui: {