LTO: get_section: add new argument

gcc/ChangeLog:

	PR lto/97508
	* langhooks.c (lhd_begin_section): Call get_section with
	not_existing = true.
	* output.h (get_section): Add new argument.
	* varasm.c (get_section): Fail when NOT_EXISTING is true
	and a section already exists.
	* ipa-cp.c (ipcp_write_summary): Remove.
	(ipcp_read_summary): Likewise.
	* ipa-fnsummary.c (ipa_fn_summary_read): Always read jump
	functions summary.
	(ipa_fn_summary_write): Always stream it.

1 files changed, 7 insertions, 2 deletions

diff --git a/gcc/varasm.c b/gcc/varasm.c
index ea0b59c..435c7b3 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -277,10 +277,12 @@ get_noswitch_section (unsigned int flags, noswitch_section_callback callback)
 }
 
 /* Return the named section structure associated with NAME.  Create
-   a new section with the given fields if no such structure exists.  */
+   a new section with the given fields if no such structure exists.
+   When NOT_EXISTING, then fail if the section already exists.  */
 
 section *
-get_section (const char *name, unsigned int flags, tree decl)
+get_section (const char *name, unsigned int flags, tree decl,
+	     bool not_existing)
 {
   section *sect, **slot;
 
@@ -297,6 +299,9 @@ get_section (const char *name, unsigned int flags, tree decl)
     }
   else
     {
+      if (not_existing)
+	internal_error ("Section already exists: %qs", name);
+
       sect = *slot;
       /* It is fine if one of the sections has SECTION_NOTYPE as long as
          the other has none of the contrary flags (see the logic at the end