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[Bug rtl-optimization/30761] [4.1/4.2/4.3 regression] Error: unsupported relocation against sfp
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Feb 2007 10:31:21 -0000
- Subject: [Bug rtl-optimization/30761] [4.1/4.2/4.3 regression] Error: unsupported relocation against sfp
- References: <bug-30761-50@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2007-02-11 10:31 -------
Actually this has nothing to do with -fsplit-wide-types, This shows up in some
cases without that, There is a reload patch floating about which fixes this.
The problem is that reload does not elimate the soft frame pointer. In fact
this is really a regression in 4.1.0 exposed by:
2005-06-30 Jakub Jelinek <jakub@redhat.com>
* config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Increment.
(DWARF_FRAME_REGISTERS, DWARF_REG_TO_UNWIND_COLUMN): Adjust, so
that addition of sfp doesn't change these.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS,
....
I actually saw it in a modified version of 4.1.1.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC target triplet|powerpc-suse-linux |powerpc*-*-*
Summary|[4.3 regression] Error: |[4.1/4.2/4.3 regression]
|unsupported relocation |Error: unsupported
|against sfp |relocation against sfp
Target Milestone|--- |4.1.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30761