Convert more cases to isPositionIndependent(). NFC.

llvm-svn: 274021
diff --git a/llvm/lib/Target/Mips/MipsFastISel.cpp b/llvm/lib/Target/Mips/MipsFastISel.cpp
index 946949a..19c201d 100644
--- a/llvm/lib/Target/Mips/MipsFastISel.cpp
+++ b/llvm/lib/Target/Mips/MipsFastISel.cpp
@@ -208,7 +208,7 @@
     bool ISASupported = !Subtarget->hasMips32r6() &&
                         !Subtarget->inMicroMipsMode() && Subtarget->hasMips32();
     TargetSupported =
-        ISASupported && (TM.getRelocationModel() == Reloc::PIC_) &&
+        ISASupported && TM.isPositionIndependent() &&
         (static_cast<const MipsTargetMachine &>(TM).getABI().IsO32());
     UnsupportedFPMode = Subtarget->isFP64bit();
   }