[PATCH] RISC-V: Add _mu C++ overloaded intrinsics for load && viota && vid

[juzhe.zhong@rivai.ai]

From: Juzhe-Zhong <juzhe.zhong@rivai.ai>

Base on these:
https://github.com/riscv-non-isa/rvv-intrinsic-doc/issues/232
https://github.com/riscv-non-isa/rvv-intrinsic-doc/pull/233

Add _mu C++ overloaded intrinsics for load && viota && vid.

Co-authored-by: KuanLin Chen <best124612@gmail.com>

gcc/ChangeLog:

        * config/riscv/riscv-vector-builtins-bases.cc: Add _mu overloaded intrinsics.
        * config/riscv/riscv-vector-builtins-shapes.cc (struct fault_load_def): Ditto.

---
 gcc/config/riscv/riscv-vector-builtins-bases.cc | 17 +++++++++++------
 .../riscv/riscv-vector-builtins-shapes.cc       |  5 ++---
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.cc b/gcc/config/riscv/riscv-vector-builtins-bases.cc
index 3f92084929d..09870c327fa 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.cc
@@ -164,7 +164,7 @@ public:
   {
     if (STORE_P || LST_TYPE == LST_INDEXED)
       return true;
-    return pred != PRED_TYPE_none && pred != PRED_TYPE_mu;
+    return pred != PRED_TYPE_none;
   }
 
   rtx expand (function_expander &e) const override
@@ -967,7 +967,7 @@ public:
   bool can_be_overloaded_p (enum predication_type_index pred) const override
   {
     return pred == PRED_TYPE_tu || pred == PRED_TYPE_tum
-	   || pred == PRED_TYPE_tumu;
+	   || pred == PRED_TYPE_tumu || pred == PRED_TYPE_mu;
   }
 
   rtx expand (function_expander &e) const override
@@ -983,7 +983,7 @@ public:
   bool can_be_overloaded_p (enum predication_type_index pred) const override
   {
     return pred == PRED_TYPE_tu || pred == PRED_TYPE_tum
-	   || pred == PRED_TYPE_tumu;
+	   || pred == PRED_TYPE_tumu || pred == PRED_TYPE_mu;
   }
 
   rtx expand (function_expander &e) const override
@@ -1715,6 +1715,11 @@ public:
     return CP_READ_MEMORY | CP_WRITE_CSR;
   }
 
+  bool can_be_overloaded_p (enum predication_type_index pred) const override
+  {
+    return pred != PRED_TYPE_none;
+  }
+
   gimple *fold (gimple_folder &f) const override
   {
     return fold_fault_load (f);
@@ -1753,7 +1758,7 @@ public:
 
   bool can_be_overloaded_p (enum predication_type_index pred) const override
   {
-    return pred != PRED_TYPE_none && pred != PRED_TYPE_mu;
+    return pred != PRED_TYPE_none;
   }
 
   rtx expand (function_expander &e) const override
@@ -1798,7 +1803,7 @@ public:
 
   bool can_be_overloaded_p (enum predication_type_index pred) const override
   {
-    return pred != PRED_TYPE_none && pred != PRED_TYPE_mu;
+    return pred != PRED_TYPE_none;
   }
 
   rtx expand (function_expander &e) const override
@@ -1888,7 +1893,7 @@ public:
 
   bool can_be_overloaded_p (enum predication_type_index pred) const override
   {
-    return pred != PRED_TYPE_none && pred != PRED_TYPE_mu;
+    return pred != PRED_TYPE_none;
   }
 
   gimple *fold (gimple_folder &f) const override
diff --git a/gcc/config/riscv/riscv-vector-builtins-shapes.cc b/gcc/config/riscv/riscv-vector-builtins-shapes.cc
index 76262f07ce4..c8daae01f91 100644
--- a/gcc/config/riscv/riscv-vector-builtins-shapes.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-shapes.cc
@@ -550,9 +550,8 @@ struct fault_load_def : public build_base
   char *get_name (function_builder &b, const function_instance &instance,
 		  bool overloaded_p) const override
   {
-    if (overloaded_p)
-      if (instance.pred == PRED_TYPE_none || instance.pred == PRED_TYPE_mu)
-	return nullptr;
+    if (overloaded_p && !instance.base->can_be_overloaded_p (instance.pred))
+      return nullptr;
     tree type = builtin_types[instance.type.index].vector;
     machine_mode mode = TYPE_MODE (type);
     int sew = GET_MODE_BITSIZE (GET_MODE_INNER (mode));
-- 
2.36.1