[PATCH] [mips] [IAS] Add support for the .module softfloat/hardfloat directives.

[Matthew Fortune]

================
Comment at: lib/Target/Mips/MipsTargetStreamer.h:104
@@ +103,3 @@
+  virtual void emitDirectiveModuleHardFloat() {
+    ABIFlagsSection.setFpABI(MipsABIFlagsSection::FpABIKind::ANY,
+                             ABIFlagsSection.Is32BitABI);
----------------
This looks fishy, the FPABI should return to whatever hard-float ABI is in force due to other options. I.e. you need to know which fp=32|xx|64 was set and/or if oddspreg is in force and/or if single float is in force.

'Any' is generally used to describe a no-float ABI which is very different from hard-float.

http://reviews.llvm.org/D9073

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