[gcc r12-1490] Consider size_t mangling as unsigned int and long [PR100876].

[gcc r12-1490] Consider size_t mangling as unsigned int and long [PR100876].

[Martin Sebor]

https://gcc.gnu.org/g:71790f398e119c7fed867b0cfce60a7500629dff

commit r12-1490-g71790f398e119c7fed867b0cfce60a7500629dff
Author: Martin Sebor <msebor@redhat.com>
Date:   Tue Jun 15 12:42:06 2021 -0600

    Consider size_t mangling as unsigned int and long [PR100876].
    
    gcc/ChangeLog:
    
            PR middle-end/100876
            * builtins.c: (gimple_call_return_array): Account for size_t
            mangling as either unsigned int or unsigned long

Diff:
---
 gcc/builtins.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/builtins.c b/gcc/builtins.c
index 75419cc4edc..855ad1eb6bb 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -5183,8 +5183,12 @@ gimple_call_return_array (gimple *stmt, offset_int offrng[2],
 	  || DECL_IS_REPLACEABLE_OPERATOR_NEW_P (fn))
 	return NULL_TREE;
 
+      /* Check the mangling, keeping in mind that operator new takes
+	 a size_t which could be unsigned int or unsigned long.  */
       tree fname = DECL_ASSEMBLER_NAME (fn);
-      if (!id_equal (fname, "_ZnwmPv")       // ordinary form
+      if (!id_equal (fname, "_ZnwjPv")       // ordinary form
+	  && !id_equal (fname, "_ZnwmPv")    // ordinary form
+	  && !id_equal (fname, "_ZnajPv")    // array form
 	  && !id_equal (fname, "_ZnamPv"))   // array form
 	return NULL_TREE;