AMDGPU: Start selecting v_mad_mixlo_f16
Also add some tests that should be able to use v_mad_mixhi_f16,
but do not yet. This is trickier because we don't really model
the partial update of the register done by 16-bit instructions.
llvm-svn: 313806
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index 3ad1969..7faf3e1 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -197,6 +197,7 @@
bool SelectVOP3OpSelMods0(SDValue In, SDValue &Src, SDValue &SrcMods,
SDValue &Clamp) const;
bool SelectVOP3PMadMixModsImpl(SDValue In, SDValue &Src, unsigned &Mods) const;
+ bool SelectVOP3PMadMixMods(SDValue In, SDValue &Src, SDValue &SrcMods) const;
void SelectADD_SUB_I64(SDNode *N);
void SelectUADDO_USUBO(SDNode *N);
@@ -1990,6 +1991,14 @@
return false;
}
+bool AMDGPUDAGToDAGISel::SelectVOP3PMadMixMods(SDValue In, SDValue &Src,
+ SDValue &SrcMods) const {
+ unsigned Mods = 0;
+ SelectVOP3PMadMixModsImpl(In, Src, Mods);
+ SrcMods = CurDAG->getTargetConstant(Mods, SDLoc(In), MVT::i32);
+ return true;
+}
+
void AMDGPUDAGToDAGISel::PostprocessISelDAG() {
const AMDGPUTargetLowering& Lowering =
*static_cast<const AMDGPUTargetLowering*>(getTargetLowering());