[llvm-commits] [llvm] r78200 - in /llvm/trunk/lib/Target/ARM: ARM.td ARMSubtarget.h

[David Goodwin]

Author: david_goodwin
Date: Wed Aug  5 11:01:19 2009
New Revision: 78200

URL: http://llvm.org/viewvc/llvm-project?rev=78200&view=rev
Log:
By default, for cortex-a8 use NEON for single-precision FP. 

Modified:
    llvm/trunk/lib/Target/ARM/ARM.td
    llvm/trunk/lib/Target/ARM/ARMSubtarget.h

Modified: llvm/trunk/lib/Target/ARM/ARM.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARM.td?rev=78200&r1=78199&r2=78200&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARM.td (original)
+++ llvm/trunk/lib/Target/ARM/ARM.td Wed Aug  5 11:01:19 2009
@@ -32,9 +32,6 @@
                                    "ARM v6t2">;
 def ArchV7A     : SubtargetFeature<"v7a", "ARMArchVersion", "V7A",
                                    "ARM v7A">;
-def FeatureNEONFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
-                                     "true",
-                                     "Use NEON for single-precision FP">;
 def FeatureVFP2 : SubtargetFeature<"vfp2", "ARMFPUType", "VFPv2",
                                    "Enable VFP2 instructions">;
 def FeatureVFP3 : SubtargetFeature<"vfp3", "ARMFPUType", "VFPv3",
@@ -43,6 +40,9 @@
                                    "Enable NEON instructions">;
 def FeatureThumb2 : SubtargetFeature<"thumb2", "ThumbMode", "Thumb2",
                                      "Enable Thumb2 instructions">;
+def FeatureNEONFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
+                                     "true",
+                                     "Use NEON for single-precision FP">;
 
 //===----------------------------------------------------------------------===//
 // ARM Processors supported.
@@ -113,7 +113,7 @@
 
 // V7 Processors.
 def : Processor<"cortex-a8",        CortexA8Itineraries,
-                [ArchV7A, FeatureThumb2, FeatureNEON]>;
+                [ArchV7A, FeatureThumb2, FeatureNEON, FeatureNEONFP]>;
 def : Processor<"cortex-a9",        V7Itineraries,
                 [ArchV7A, FeatureThumb2, FeatureNEON]>;
 

Modified: llvm/trunk/lib/Target/ARM/ARMSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMSubtarget.h?rev=78200&r1=78199&r2=78200&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMSubtarget.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMSubtarget.h Wed Aug  5 11:01:19 2009
@@ -42,7 +42,9 @@
   /// ARMFPUType - Floating Point Unit type.
   ARMFPEnum ARMFPUType;
 
-  /// UseNEONForSinglePrecisionFP - if NEON is available use for FP
+  /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been
+  /// specified. Use the method useNEONForSinglePrecisionFP() to
+  /// determine if NEON should actually be used.
   bool UseNEONForSinglePrecisionFP;
 
   /// IsThumb - True if we are in thumb mode, false if in ARM mode.