[gcc r14-2061] LOOP IVOPTS: Apply LEN_MASK_{LOAD,STORE}

[Pan Li]

https://gcc.gnu.org/g:31b7659995caccca626709ecb634339f75980ff2

commit r14-2061-g31b7659995caccca626709ecb634339f75980ff2
Author: Ju-Zhe Zhong <juzhe.zhong@rivai.ai>
Date:   Sat Jun 24 07:41:57 2023 +0800

    LOOP IVOPTS: Apply LEN_MASK_{LOAD,STORE}
    
    Hi, Jeff. I fix format as you suggested.
    Ok for trunk ?
    
    gcc/ChangeLog:
    
            * tree-ssa-loop-ivopts.cc (get_mem_type_for_internal_fn):
            Apply LEN_MASK_{LOAD,STORE}.

Diff:
---
 gcc/tree-ssa-loop-ivopts.cc | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/gcc/tree-ssa-loop-ivopts.cc b/gcc/tree-ssa-loop-ivopts.cc
index 573182247a7..243ce86dfc4 100644
--- a/gcc/tree-ssa-loop-ivopts.cc
+++ b/gcc/tree-ssa-loop-ivopts.cc
@@ -2442,6 +2442,7 @@ get_mem_type_for_internal_fn (gcall *call, tree *op_p)
     case IFN_MASK_LOAD:
     case IFN_MASK_LOAD_LANES:
     case IFN_LEN_LOAD:
+    case IFN_LEN_MASK_LOAD:
       if (op_p == gimple_call_arg_ptr (call, 0))
 	return TREE_TYPE (gimple_call_lhs (call));
       return NULL_TREE;
@@ -2449,9 +2450,16 @@ get_mem_type_for_internal_fn (gcall *call, tree *op_p)
     case IFN_MASK_STORE:
     case IFN_MASK_STORE_LANES:
     case IFN_LEN_STORE:
-      if (op_p == gimple_call_arg_ptr (call, 0))
-	return TREE_TYPE (gimple_call_arg (call, 3));
-      return NULL_TREE;
+    case IFN_LEN_MASK_STORE:
+      {
+	if (op_p == gimple_call_arg_ptr (call, 0))
+	  {
+	    internal_fn ifn = gimple_call_internal_fn (call);
+	    int index = internal_fn_stored_value_index (ifn);
+	    return TREE_TYPE (gimple_call_arg (call, index));
+	  }
+	return NULL_TREE;
+      }
 
     default:
       return NULL_TREE;