[PATCH] Mark SJLJ EH label as local

[Richard Earnshaw]

This patch causes an internal label generated by the EH unwinding support 
that uses SJLJ to be marked as local so that backends can optimize GOT 
accesses for it.

On arm-netbsdelf this cuts the number of R_ARM_RELATIVE relocs in 
libstdc++.so from 684 to 288 (With a corresponding cut in the number of 
GOT entries).  On libjava.so it eliminates 1348 entries.

Bootstrapped and reg-tested on arm-netbsdelf.

2003-11-14  Richard Earnshaw  <rearnsha@arm.com>

	* except.c (sjlj_emit_function_enter): Mark internal label as LOCAL.


-------------- next part --------------
Index: except.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/except.c,v
retrieving revision 1.253
diff -p -r1.253 except.c
*** except.c	18 Sep 2003 20:53:03 -0000	1.253
--- except.c	12 Nov 2003 15:39:05 -0000
*************** sjlj_emit_function_enter (rtx dispatch_l
*** 2047,2054 ****
    if (cfun->uses_eh_lsda)
      {
        char buf[20];
        ASM_GENERATE_INTERNAL_LABEL (buf, "LLSDA", current_function_funcdef_no);
!       emit_move_insn (mem, gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)));
      }
    else
      emit_move_insn (mem, const0_rtx);
--- 2047,2058 ----
    if (cfun->uses_eh_lsda)
      {
        char buf[20];
+       rtx sym;
+ 
        ASM_GENERATE_INTERNAL_LABEL (buf, "LLSDA", current_function_funcdef_no);
!       sym = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
!       SYMBOL_REF_FLAGS (sym) = SYMBOL_FLAG_LOCAL;
!       emit_move_insn (mem, sym);
      }
    else
      emit_move_insn (mem, const0_rtx);