[Bug target/123457] ICE when using arm_acle.h, arm_sve.h and other such headers with pch

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123457

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2026-01-08
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot 
gnu.org
     Ever confirmed|0                           |1

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think I see the issue:
static hash_table<registered_function_hasher> *function_table;

That is missing GTY markers. And registered_function_hasher needs to be from 

And few other changes.

[apinski@xeond2 pr123457]$ git diff
diff --git a/gcc/config/aarch64/aarch64-sve-builtins.cc
b/gcc/config/aarch64/aarch64-sve-builtins.cc
index 7d90501073a..84402ce5feb 100644
--- a/gcc/config/aarch64/aarch64-sve-builtins.cc
+++ b/gcc/config/aarch64/aarch64-sve-builtins.cc
@@ -94,7 +94,7 @@ public:
 };

 /* Hash traits for registered_function.  */
-struct registered_function_hasher : nofree_ptr_hash <registered_function>
+struct registered_function_hasher : ggc_ptr_hash <registered_function>
 {
   typedef function_instance compare_type;

@@ -1045,12 +1045,12 @@ tree acle_svprfop;
 static GTY(()) vec<registered_function *, va_gc> *registered_functions;

 /* Stores the starting function index for each pragma handler.  */
-static unsigned int initial_indexes[NUM_PRAGMA_HANDLERS];
+static  GTY(()) unsigned int initial_indexes[NUM_PRAGMA_HANDLERS];

 /* All registered function decls, hashed on the function_instance
    that they implement.  This is used for looking up implementations of
    overloaded functions.  */
-static hash_table<registered_function_hasher> *function_table;
+static GTY(()) hash_table<registered_function_hasher> *function_table;

 /* Index 0 maps all overloaded function names that we've registered so far to
    their associated function_instances.  Index 1 does the same for functions
@@ -4903,7 +4903,7 @@ handle_arm_sve_h (bool function_nulls_p)
   register_svprfop ();

   /* Define the functions.  */
-  function_table = new hash_table<registered_function_hasher> (1023);
+  function_table = hash_table<registered_function_hasher>::create_ggc (1023);
   function_builder builder (arm_sve_handle, function_nulls_p);
   for (unsigned int i = 0; i < ARRAY_SIZE (function_groups); ++i)
     builder.register_function_group (function_groups[i]);