In an earlier fix, the following change was made in varasm.c for invalid
register variables:
--- trunk/gcc/varasm.c 2014/08/26 14:59:59 214525
+++ trunk/gcc/varasm.c 2014/08/26 17:06:31 214526
@@ -1371,6 +1371,11 @@ make_decl_rtl (tree decl)
/* As a register variable, it has no section. */
return;
}
+ /* Avoid internal errors from invalid register
+ specifications. */
+ SET_DECL_ASSEMBLER_NAME (decl, NULL_TREE);
+ DECL_HARD_REGISTER (decl) = 0;
+ return;
}
As seen in PR67639, this makes the IL inconsistent and triggers another
internal error where we expect to see an SSA_NAME instead of a VAR_DECL.
The following patch extends the above slightly, by also setting
DECL_EXTERNAL to pretend that the erroneous variable is actually a
global.
Bootstrapped and tested on x86_64-linux, ok?