diff options
| author | Jim Grosbach <grosbach@apple.com> | 2010-03-25 23:47:34 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-03-25 23:47:34 +0000 |
| commit | 71fcb4feddb5034b5786c85017add2dbadaa530f (patch) | |
| tree | 837e706ad1083a31591b64cca64bd8cbf66cad25 /llvm/lib/Target/ARM/ARM.td | |
| parent | 42bb89c7d9de24d4f10a33282f4c4f72506f6026 (diff) | |
| download | bcm5719-llvm-71fcb4feddb5034b5786c85017add2dbadaa530f.tar.gz bcm5719-llvm-71fcb4feddb5034b5786c85017add2dbadaa530f.zip | |
switch the flag for using NEON for SP floating point to a subtarget 'feature'.
Re-commit. This time complete with testsuite updates.
llvm-svn: 99570
Diffstat (limited to 'llvm/lib/Target/ARM/ARM.td')
| -rw-r--r-- | llvm/lib/Target/ARM/ARM.td | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/ARM.td b/llvm/lib/Target/ARM/ARM.td index 50d54b436e0..931c81c5b63 100644 --- a/llvm/lib/Target/ARM/ARM.td +++ b/llvm/lib/Target/ARM/ARM.td @@ -49,8 +49,14 @@ def FeatureFP16 : SubtargetFeature<"fp16", "HasFP16", "true", // FIXME: Currently, this is only flagged for Cortex-A8. It may be true for // others as well. We should do more benchmarking and confirm one way or // the other. -def HasSlowVMLx : SubtargetFeature<"vmlx", "SlowVMLx", "true", - "Disable VFP MAC instructions">; +def FeatureHasSlowVMLx : SubtargetFeature<"vmlx", "SlowVMLx", "true", + "Disable VFP MAC instructions">; +// Some processors benefit from using NEON instructions for scalar +// single-precision FP operations. +def FeatureNEONForFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP", + "true", + "Use NEON for single precision FP">; + //===----------------------------------------------------------------------===// // ARM Processors supported. @@ -115,7 +121,8 @@ def : Processor<"arm1156t2f-s", ARMV6Itineraries, // V7 Processors. def : Processor<"cortex-a8", CortexA8Itineraries, - [ArchV7A, FeatureThumb2, FeatureNEON, HasSlowVMLx]>; + [ArchV7A, FeatureThumb2, FeatureNEON, FeatureHasSlowVMLx, + FeatureNEONForFP]>; def : ProcNoItin<"cortex-a9", [ArchV7A, FeatureThumb2, FeatureNEON]>; //===----------------------------------------------------------------------===// |
