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[PATCH 2/X, i386, PR54232] Enable EBX for x86 in 32bits PIC code


i386 specific part of the patch:

2014-10-08  Ilya Enkovich  <ilya.enkovich@intel.com>
            Vladimir Makarov  <vmakarov@redhat.com>
        * gcc/config/i386/i386.c (ix86_use_pseudo_pic_reg): New.
        (ix86_init_pic_reg): New.
        (ix86_select_alt_pic_regnum): Add check on pseudo register.
        (ix86_save_reg): Likewise.
        (ix86_expand_prologue): Remove irrelevant code.
        (ix86_output_function_epilogue): Add check on pseudo register.
        (set_pic_reg_ever_alive): New.
        (legitimize_pic_address): Replace df_set_regs_ever_live with new
        set_pic_reg_ever_alive.
        (legitimize_tls_address): Likewise.
        (ix86_pic_register_p): New check.
        (ix86_delegitimize_address): Add check on pseudo register.
        (ix86_expand_call): Insert move from pseudo PIC register to ABI
        defined REAL_PIC_OFFSET_TABLE_REGNUM.
        (TARGET_INIT_PIC_REG): New.
        (TARGET_USE_PSEUDO_PIC_REG): New.
        (PIC_OFFSET_TABLE_REGNUM): New check.

Attachment: enabling_ebx_i386.patch
Description: Binary data


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