[Bug target/24624] [4.1 Regression] internal compiler error: in reload, at reload1.c:1071

[janis at gcc dot gnu dot org]

------- Comment #2 from janis at gcc dot gnu dot org  2005-11-03 01:28 -------
A regression hunt using a cross compiler identified the following patch:

http://gcc.gnu.org/viewcvs?view=rev&rev=101381

2005-06-28  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (machine_function): New field has_landing_pad_p.
        (s390_set_has_landing_pad_p, s390_reg_clobbered_rtx,
         s390_regs_ever_clobbered): New functions.
        (s390_return_addr_rtx): Use get_hard_reg_initial_value.
        (s390_register_info, s390_init_frame_layout, s390_update_frame_layout):
        Use s390_regs_ever_clobbered.
        (s390_emit_prologue): Don't use r14 as temp reg if its content is used
        for builtin_return_address.
        * config/s390/s390.md ("exception_receiver"): New expander.
        * config/s390/s390-protos.h (s390_set_has_landing_pad_p): Prototype
        added.

Only the following options are needed to reproduce the failure with
the reduced testcase: -m64 -mpacked-stack -mstack-size=8192 -mstack-guard=256


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24624