From: Christophe Lyon <christophe.lyon@arm.com>
Date: Tue, 21 Feb 2023 21:36:44 +0000 (+0000)
Subject: arm: [MVE intrinsics] add unary_widen_acc shape
X-Git-Tag: basepoints/gcc-15~9424
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2b46dbc0480e060096ce22b9f943fd0d6329bc35;p=thirdparty%2Fgcc.git

arm: [MVE intrinsics] add unary_widen_acc shape

This patch adds the unary_widen_acc shape description.

2022-10-25  Christophe Lyon  <christophe.lyon@arm.com>

	gcc/
	* config/arm/arm-mve-builtins-shapes.cc (unary_widen_acc): New.
	* config/arm/arm-mve-builtins-shapes.h (unary_widen_acc): New.
---

diff --git a/gcc/config/arm/arm-mve-builtins-shapes.cc b/gcc/config/arm/arm-mve-builtins-shapes.cc
index ae73fc6b1b7e..a7faf8299cbc 100644
--- a/gcc/config/arm/arm-mve-builtins-shapes.cc
+++ b/gcc/config/arm/arm-mve-builtins-shapes.cc
@@ -1282,6 +1282,40 @@ struct unary_widen_def : public overloaded_base<0>
 };
 SHAPE (unary_widen)
 
+/* <S0:twice>_t vfoo[_<t0>](<S0:twice>_t, <T0>_t)
+
+   i.e. a version of "unary" in which the source elements are half the
+   size of the destination scalar and accumulator, but have the same
+   type class.
+
+   Example: vaddlvaq.
+   int64_t [__arm_]vaddlvaq[_s32](int64_t a, int32x4_t b)
+   int64_t [__arm_]vaddlvaq_p[_s32](int64_t a, int32x4_t b, mve_pred16_t p)  */
+struct unary_widen_acc_def : public overloaded_base<0>
+{
+  void
+  build (function_builder &b, const function_group_info &group,
+	 bool preserve_user_namespace) const override
+  {
+    b.add_overloaded_functions (group, MODE_none, preserve_user_namespace);
+    build_all (b, "sw0,sw0,v0", group, MODE_none, preserve_user_namespace);
+  }
+
+  tree
+  resolve (function_resolver &r) const override
+  {
+    unsigned int i, nargs;
+    type_suffix_index type;
+    if (!r.check_gp_argument (2, i, nargs)
+	|| !r.require_derived_scalar_type (0, r.SAME_TYPE_CLASS)
+	|| (type = r.infer_vector_type (i)) == NUM_TYPE_SUFFIXES)
+      return error_mark_node;
+
+    return r.resolve_to (r.mode_suffix_id, type);
+  }
+};
+SHAPE (unary_widen_acc)
+
 } /* end namespace arm_mve */
 
 #undef SHAPE
diff --git a/gcc/config/arm/arm-mve-builtins-shapes.h b/gcc/config/arm/arm-mve-builtins-shapes.h
index 5a8d9fe2b2de..46cc26ef918a 100644
--- a/gcc/config/arm/arm-mve-builtins-shapes.h
+++ b/gcc/config/arm/arm-mve-builtins-shapes.h
@@ -59,6 +59,7 @@ namespace arm_mve
     extern const function_shape *const unary_int32_acc;
     extern const function_shape *const unary_n;
     extern const function_shape *const unary_widen;
+    extern const function_shape *const unary_widen_acc;
 
   } /* end namespace arm_mve::shapes */
 } /* end namespace arm_mve */