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
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index d9bb3e6..4340a71 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -708,6 +708,9 @@
setOperationAction(ISD::FPOW, MVT::f64, Expand);
setOperationAction(ISD::FPOW, MVT::f32, Expand);
+ setOperationAction(ISD::FMA, MVT::f64, Expand);
+ setOperationAction(ISD::FMA, MVT::f32, Expand);
+
// Various VFP goodness
if (!UseSoftFloat && !Subtarget->isThumb1Only()) {
// int <-> fp are custom expanded into bit_convert + ARMISD ops.