[llvm] [GlobalISel][AArch64] Legalize G_FABS and G_FNEG for SVE (PR #114784)

[Thorsten Schütt via llvm-commits]

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@@ -0,0 +1,36 @@
+//===-- AArch64GlobalISelPatterns.td - GlobalISel patterns -*- tablegen -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Selection and combine patterns for GlobalISel.
+//
+//===----------------------------------------------------------------------===//
+
+
+//unpredicate patterns
+
+
+
+// fneg
+def : Pat<(nxv2f64 (fneg nxv2f64:$src)),
+          (FNEG_ZPmZ_D (IMPLICIT_DEF), (PTRUE_D 31), ZPR:$src)>;
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tschuett wrote:

`ag movprfx llvm/lib/Target/AArch64/*.td` movprfx seems to be seldomly used in patterns. Could you give a pointer?

https://github.com/llvm/llvm-project/pull/114784