Re: Build broken in libstdc++ on x86_64-linux

[Jan Hubicka]

> Hi,
> 
> the build is currently, ie 154122, broken in libstdc++-v3:
> 
>     ...../src/system_error.cc:95:1: internal compiler error:
> Segmentation fault
> 
> Version 154120 works fine for me.
I am testing patch for that still.
The current version is (updated per Joseph's comment about COMDAT making sence
on !PUBLIC functions).

Index: ipa.c
===================================================================
--- ipa.c       (revision 154122)
+++ ipa.c       (working copy)
@@ -318,8 +318,8 @@ function_and_variable_visibility (bool w
     {
       if (!vnode->finalized)
         continue;
-      gcc_assert ((!DECL_WEAK (vnode->decl) && !DECL_COMMON (vnode->decl) && 
!DECL_COMDAT (vnode->decl))
-                 || TREE_PUBLIC (vnode->decl) || DECL_EXTERNAL (node->decl));
+      gcc_assert ((!DECL_WEAK (vnode->decl) && !DECL_COMMON (vnode->decl))
+                 || TREE_PUBLIC (vnode->decl) || DECL_EXTERNAL (vnode->decl));
       if (vnode->needed
          && (DECL_COMDAT (vnode->decl) || TREE_PUBLIC (vnode->decl))
          && (!whole_program
@@ -337,6 +337,7 @@ function_and_variable_visibility (bool w
        {
          gcc_assert (whole_program || !TREE_PUBLIC (vnode->decl));
          TREE_PUBLIC (vnode->decl) = 0;
+         DECL_COMMON (vnode->decl) = 0;
        }
      gcc_assert (TREE_STATIC (vnode->decl));
     }