From 33390848a7eca75301d04a59b89b516d83e19ee0 Mon Sep 17 00:00:00 2001 From: Cameron Zwarich Date: Fri, 8 Jul 2011 21:39:21 +0000 Subject: Add an intrinsic and codegen support for fused multiply-accumulate. The intent is to use this for architectures that have a native FMA instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134742 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp') diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 2afec3328b..3c8b04fe89 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4651,6 +4651,13 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) { case Intrinsic::pow: visitPow(I); return 0; + case Intrinsic::fma: + setValue(&I, DAG.getNode(ISD::FMA, dl, + getValue(I.getArgOperand(0)).getValueType(), + getValue(I.getArgOperand(0)), + getValue(I.getArgOperand(1)), + getValue(I.getArgOperand(2)))); + return 0; case Intrinsic::convert_to_fp16: setValue(&I, DAG.getNode(ISD::FP32_TO_FP16, dl, MVT::i16, getValue(I.getArgOperand(0)))); -- cgit v1.2.3-18-g5258