1 files changed, 32 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp b/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
index 03a545605fe1..ae92604d47ba 100644
--- a/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
+++ b/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
@@ -956,6 +956,38 @@ bool MipsSEDAGToDAGISel::trySelect(SDNode *Node) {
     break;
   }
 
+  case MipsISD::FAbs: {
+    MVT ResTy = Node->getSimpleValueType(0);
+    assert((ResTy == MVT::f64 || ResTy == MVT::f32) &&
+           "Unsupported float type!");
+    unsigned Opc = 0;
+    if (ResTy == MVT::f64)
+      Opc = (Subtarget->isFP64bit() ? Mips::FABS_D64 : Mips::FABS_D32);
+    else
+      Opc = Mips::FABS_S;
+
+    if (Subtarget->inMicroMipsMode()) {
+      switch (Opc) {
+      case Mips::FABS_D64:
+        Opc = Mips::FABS_D64_MM;
+        break;
+      case Mips::FABS_D32:
+        Opc = Mips::FABS_D32_MM;
+        break;
+      case Mips::FABS_S:
+        Opc = Mips::FABS_S_MM;
+        break;
+      default:
+        llvm_unreachable("Unknown opcode for MIPS floating point abs!");
+      }
+    }
+
+    ReplaceNode(Node,
+                CurDAG->getMachineNode(Opc, DL, ResTy, Node->getOperand(0)));
+
+    return true;
+  }
+
   // Manually match MipsISD::Ins nodes to get the correct instruction. It has
   // to be done in this fashion so that we respect the differences between
   // dins and dinsm, as the difference is that the size operand has the range