AMDGPU: Don't handle FP16_TO_FP in isCanonicalized

This needs more special handling to do correctly.
Fixes test in subsequent commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338381 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AMDGPU/SIISelLowering.cpp b/lib/Target/AMDGPU/SIISelLowering.cpp
index acde638..64d63e4 100644 (file)
--- a/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -6800,10 +6800,6 @@ static bool isCanonicalized(SelectionDAG &DAG, SDValue Op,
     return Op.getOperand(0).getValueType().getScalarType() != MVT::f16 ||
            ST->hasFP16Denormals();
 
-  case ISD::FP16_TO_FP:
-  case ISD::FP_TO_FP16:
-    return ST->hasFP16Denormals();
-
   // It can/will be lowered or combined as a bit operation.
   // Need to check their input recursively to handle.
   case ISD::FNEG: