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updated patch for the ARM fused multiply add/sub

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In this update:
- I assumed neon2 does not imply vfpv4, but neon and vfpv4 imply neon2.
- I kept setting .fpu=neon-vfpv4 code attribute because that is what the
assembler understands.

Patch by Ana Pazos <apazos@codeaurora.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152036 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sebastian Pop
2012-03-05 17:39:52 +00:00
parent 43ec0f4921
commit 74bebde7c4
8 changed files with 82 additions and 48 deletions
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8
lib/Target/ARM/ARM.td
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@@ -38,9 +38,9 @@ def FeatureVFP4 : SubtargetFeature<"vfp4", "HasVFPv4", "true",
def FeatureNEON : SubtargetFeature<"neon", "HasNEON", "true",
"Enable NEON instructions",
[FeatureVFP3]>;
def FeatureNEONVFP4 : SubtargetFeature<"neon-vfpv4", "HasNEONVFPv4", "true",
"Enable NEON-VFP4 instructions",
[FeatureVFP4, FeatureNEON]>;
def FeatureNEON2 : SubtargetFeature<"neon2", "HasNEON2", "true",
"Enable Advanced SIMD2 instructions",
[FeatureNEON]>;
def FeatureThumb2 : SubtargetFeature<"thumb2", "HasThumb2", "true",
"Enable Thumb2 instructions">;
def FeatureNoARM : SubtargetFeature<"noarm", "NoARM", "true",
@@ -76,6 +76,8 @@ def FeatureVMLxForwarding : SubtargetFeature<"vmlx-forwarding",
def FeatureNEONForFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
"true",
"Use NEON for single precision FP">;
// Allow more precision in FP computation
def FPContractions : Predicate<"!TM.Options.NoExcessFPPrecision">;
// Disable 32-bit to 16-bit narrowing for experimentation.
def FeaturePref32BitThumb : SubtargetFeature<"32bit", "Pref32BitThumb", "true",