[Bug rtl-optimization/34999] Incorrect FDE entries with hot/cold code section splitting (partition_hot_cold_basic_blocks)

["ghazi at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #27 from ghazi at gcc dot gnu dot org  2009-09-07 01:04 -------
(In reply to comment #25)
> Subject: Bug 34999
> Author: jakub
> Date: Fri Jul 24 23:30:39 2009
> New Revision: 150069
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150069
> Log:
>         PR rtl-optimization/34999
>         * dwarf2out.c (struct dw_fde_struct): Add dw_fde_switch_cfi
>         and dw_fde_switched_cold_to_hot fields.
>         (output_cfi_p): New function.
>         (output_call_frame_info): If fde->dw_fde_switched_sections,
>         output 2 FDEs instead of one with corrupted header.
>         (dwarf2out_do_cfi_startproc): New function.
>         (dwarf2out_begin_prologue): Use it.  Initialize fde->dw_fde_switch_cfi
>         and fde->dw_fde_switched_cold_to_hot.
>         (dwarf2out_switch_text_section): Compute
>         fde->dw_fde_switched_cold_to_hot.  Switch to new text section here.
>         If dwarf2out_do_cfi_asm, emit .cfi_endproc before it and call
>         dwarf2out_do_cfi_startproc plus emit again currently active CFI insns.
>         Otherwise, compute fde->dw_fde_switch_cfi.
> Modified:
>     trunk/gcc/ChangeLog
>     trunk/gcc/dwarf2out.c

Is this patch suitable for 4.4.x?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34999