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[AArch64] SVE implies fullfp16

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This is explicitly guaranteed in ARMARM. And it makes reasoning about
vectors easier: we can assume that if a vector operation is legal, the
corresponding scalar operation is also legal.

Differential Revision: https://reviews.llvm.org/D74993
This commit is contained in:
Eli Friedman 2020-02-21 15:05:41 -08:00
parent bede12ada9
commit 8e5fb180ad
2 changed files with 2 additions and 2 deletions
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2
lib/Target/AArch64/AArch64.td
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@ -101,7 +101,7 @@ def FeatureCCPP : SubtargetFeature<"ccpp", "HasCCPP",
"true", "Enable v8.2 data Cache Clean to Point of Persistence" >;
def FeatureSVE : SubtargetFeature<"sve", "HasSVE", "true",
"Enable Scalable Vector Extension (SVE) instructions">;
"Enable Scalable Vector Extension (SVE) instructions", [FeatureFullFP16]>;
def FeatureSVE2 : SubtargetFeature<"sve2", "HasSVE2", "true",
"Enable Scalable Vector Extension 2 (SVE2) instructions", [FeatureSVE]>;

2
test/CodeGen/AArch64/sve-vector-splat.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve,+fullfp16 < %s | FileCheck %s
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s | FileCheck %s
;; Splats of legal integer vector types