[PATCH 10/23] arm: [MVE intrinsics] add binary_lshift_r shape

[Christophe Lyon via Gcc-patches]

This patch adds the binary_lshift_r shape description.

2022-09-08  Christophe Lyon  <christophe.l...@arm.com>

        gcc/
        * config/arm/arm-mve-builtins-shapes.cc (binary_lshift_r): New.
        * config/arm/arm-mve-builtins-shapes.h (binary_lshift_r): New.
---
 gcc/config/arm/arm-mve-builtins-shapes.cc | 41 +++++++++++++++++++++++
 gcc/config/arm/arm-mve-builtins-shapes.h  |  1 +
 2 files changed, 42 insertions(+)

diff --git a/gcc/config/arm/arm-mve-builtins-shapes.cc 
b/gcc/config/arm/arm-mve-builtins-shapes.cc
index e5093c3f29d..4ecb612ece5 100644
--- a/gcc/config/arm/arm-mve-builtins-shapes.cc
+++ b/gcc/config/arm/arm-mve-builtins-shapes.cc
@@ -576,6 +576,47 @@ struct binary_lshift_def : public overloaded_base<0>
 };
 SHAPE (binary_lshift)
 
+/* Used with the above form, but only for the MODE_r case which does
+   not always support the same set of predicates as MODE_none and
+   MODE_n.  For vqshlq they are the same, but for vshlq they are not.
+
+   <T0>_t vfoo_r[_t0](<T0>_t, int32_t)
+
+   i.e. the standard shape for shift operations that operate on
+   vector types.
+   Example: vshlq.
+   int8x16_t [__arm_]vshlq_r[_s8](int8x16_t a, int32_t b)
+   int8x16_t [__arm_]vshlq_m_r[_s8](int8x16_t a, int32_t b, mve_pred16_t p)  */
+struct binary_lshift_r_def : public overloaded_base<0>
+{
+  bool
+  explicit_mode_suffix_p (enum predication_index, enum mode_suffix_index) 
const override
+  {
+    return true;
+  }
+
+  void
+  build (function_builder &b, const function_group_info &group,
+        bool preserve_user_namespace) const override
+  {
+    b.add_overloaded_functions (group, MODE_r, preserve_user_namespace);
+    build_all (b, "v0,v0,ss32", group, MODE_r, preserve_user_namespace, false, 
preds_m_or_none);
+  }
+
+  tree
+  resolve (function_resolver &r) const override
+  {
+    unsigned int i, nargs;
+    type_suffix_index type;
+    if (!r.check_gp_argument (2, i, nargs)
+       || (type = r.infer_vector_type (0)) == NUM_TYPE_SUFFIXES)
+      return error_mark_node;
+
+    return r.finish_opt_n_resolution (i, 0, type, TYPE_signed);
+  }
+};
+SHAPE (binary_lshift_r)
+
 /* <T0>xN_t vfoo[_t0](uint64_t, uint64_t)
 
    where there are N arguments in total.
diff --git a/gcc/config/arm/arm-mve-builtins-shapes.h 
b/gcc/config/arm/arm-mve-builtins-shapes.h
index e472862ceef..25d9b60a670 100644
--- a/gcc/config/arm/arm-mve-builtins-shapes.h
+++ b/gcc/config/arm/arm-mve-builtins-shapes.h
@@ -36,6 +36,7 @@ namespace arm_mve
 
     extern const function_shape *const binary;
     extern const function_shape *const binary_lshift;
+    extern const function_shape *const binary_lshift_r;
     extern const function_shape *const binary_opt_n;
     extern const function_shape *const binary_orrq;
     extern const function_shape *const binary_round_lshift;
-- 
2.34.1