[PATCH] [ARM] Correct fpu attributes used for v8 in ARMAsmPrinter

[Bradley Smith]

Correct the values used for the '.fpu' attribute in the ARMAsmPrinter for v8 such that they match the values gas expects, (fp-armv8, neon-fp-armv8).

http://llvm-reviews.chandlerc.com/D1674

Files:
  lib/Target/ARM/ARMAsmPrinter.cpp

Index: lib/Target/ARM/ARMAsmPrinter.cpp
===================================================================
--- lib/Target/ARM/ARMAsmPrinter.cpp
+++ lib/Target/ARM/ARMAsmPrinter.cpp
@@ -807,8 +807,11 @@
 
   if (Subtarget->hasNEON() && emitFPU) {
     /* NEON is not exactly a VFP architecture, but GAS emit one of
-     * neon/neon-vfpv4/vfpv3/vfpv2 for .fpu parameters */
-    if (Subtarget->hasVFP4())
+     * neon/neon-fp-armv8/neon-vfpv4/vfpv3/vfpv2 for .fpu parameters */
+    if (Subtarget->hasV8FP())
+      AttrEmitter->EmitTextAttribute(ARMBuildAttrs::Advanced_SIMD_arch,
+                                     "neon-fp-armv8");
+    else if (Subtarget->hasVFP4())
       AttrEmitter->EmitTextAttribute(ARMBuildAttrs::Advanced_SIMD_arch,
                                      "neon-vfpv4");
     else
@@ -823,7 +826,7 @@
     AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch,
                                ARMBuildAttrs::AllowV8FPA);
     if (emitFPU)
-      AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "v8fp");
+      AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "fp-armv8");
     /* VFPv4 + .fpu */
   } else if (Subtarget->hasVFP4()) {
     AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch,
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