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Line 1... |
/* tc-mips.c -- assemble code for a MIPS chip.
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/* tc-mips.c -- assemble code for a MIPS chip.
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Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by the OSF and Ralph Campbell.
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Contributed by the OSF and Ralph Campbell.
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Written by Keith Knowles and Ralph Campbell, working independently.
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Written by Keith Knowles and Ralph Campbell, working independently.
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Modified for ECOFF and R4000 support by Ian Lance Taylor of Cygnus
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Modified for ECOFF and R4000 support by Ian Lance Taylor of Cygnus
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Support.
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Support.
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| Line 3685... |
Line 3685... |
can_swap_branch_p (struct mips_cl_insn *ip)
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can_swap_branch_p (struct mips_cl_insn *ip)
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{
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{
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unsigned long pinfo, pinfo2, prev_pinfo, prev_pinfo2;
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unsigned long pinfo, pinfo2, prev_pinfo, prev_pinfo2;
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unsigned int gpr_read, gpr_write, prev_gpr_read, prev_gpr_write;
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unsigned int gpr_read, gpr_write, prev_gpr_read, prev_gpr_write;
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/* -O2 and above is required for this optimization. */
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/* -O2 and above is required for this optimization. */
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if (mips_optimize < 2)
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if (mips_optimize < 2)
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return FALSE;
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return FALSE;
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/* If we have seen .set volatile or .set nomove, don't optimize. */
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/* If we have seen .set volatile or .set nomove, don't optimize. */
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| Line 3727... |
Line 3726... |
if (seg_info (now_seg)->label_list)
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if (seg_info (now_seg)->label_list)
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return FALSE;
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return FALSE;
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/* If the previous instruction is in a variant frag other than this
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/* If the previous instruction is in a variant frag other than this
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branch's one, we cannot do the swap. This does not apply to
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branch's one, we cannot do the swap. This does not apply to
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MIPS16/microMIPS code, which uses variant frags for different
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MIPS16 code, which uses variant frags for different purposes. */
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purposes. */
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if (!mips_opts.mips16
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if (!HAVE_CODE_COMPRESSION
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&& history[0].frag
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&& history[0].frag
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&& history[0].frag->fr_type == rs_machine_dependent)
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&& history[0].frag->fr_type == rs_machine_dependent)
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return FALSE;
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return FALSE;
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/* We do not swap with instructions that cannot architecturally
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/* We do not swap with instructions that cannot architecturally
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| Line 3918... |
Line 3916... |
s = colon (micromips_label_name ());
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s = colon (micromips_label_name ());
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micromips_label_inc ();
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micromips_label_inc ();
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#if defined(OBJ_ELF) || defined(OBJ_MAYBE_ELF)
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#if defined(OBJ_ELF) || defined(OBJ_MAYBE_ELF)
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if (IS_ELF)
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if (IS_ELF)
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S_SET_OTHER (s, ELF_ST_SET_MICROMIPS (S_GET_OTHER (s)));
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S_SET_OTHER (s, ELF_ST_SET_MICROMIPS (S_GET_OTHER (s)));
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#else
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(void) s;
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#endif
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#endif
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}
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}
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/* If assembling microMIPS code, then return the microMIPS reloc
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/* If assembling microMIPS code, then return the microMIPS reloc
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corresponding to the requested one if any. Otherwise return
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corresponding to the requested one if any. Otherwise return
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| Line 4589... |
Line 4589... |
/* End a nested noreorder block. */
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/* End a nested noreorder block. */
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static void
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static void
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end_noreorder (void)
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end_noreorder (void)
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{
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{
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mips_opts.noreorder--;
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mips_opts.noreorder--;
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if (mips_opts.noreorder == 0 && prev_nop_frag != NULL)
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if (mips_opts.noreorder == 0 && prev_nop_frag != NULL)
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{
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{
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/* Commit to inserting prev_nop_frag_required nops and go back to
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/* Commit to inserting prev_nop_frag_required nops and go back to
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handling nop insertion the .set reorder way. */
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handling nop insertion the .set reorder way. */
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| Line 18226... |
Line 18225... |
s = subtype & (RELAX_DELAY_SLOT_16BIT
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s = subtype & (RELAX_DELAY_SLOT_16BIT
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| RELAX_DELAY_SLOT_SIZE_FIRST
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| RELAX_DELAY_SLOT_SIZE_FIRST
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| RELAX_DELAY_SLOT_SIZE_SECOND);
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| RELAX_DELAY_SLOT_SIZE_SECOND);
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msg = macro_warning (s);
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msg = macro_warning (s);
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if (msg != NULL)
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if (msg != NULL)
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as_warn_where (fragp->fr_file, fragp->fr_line, msg);
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as_warn_where (fragp->fr_file, fragp->fr_line, "%s", msg);
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subtype &= ~s;
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subtype &= ~s;
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}
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}
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/* Possibly emit a warning if we've chosen the longer option. */
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/* Possibly emit a warning if we've chosen the longer option. */
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if (use_second == second_longer)
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if (use_second == second_longer)
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| Line 18240... |
Line 18239... |
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s = (subtype
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s = (subtype
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& (RELAX_SECOND_LONGER | RELAX_NOMACRO | RELAX_DELAY_SLOT));
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& (RELAX_SECOND_LONGER | RELAX_NOMACRO | RELAX_DELAY_SLOT));
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msg = macro_warning (s);
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msg = macro_warning (s);
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if (msg != NULL)
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if (msg != NULL)
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as_warn_where (fragp->fr_file, fragp->fr_line, msg);
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as_warn_where (fragp->fr_file, fragp->fr_line, "%s", msg);
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subtype &= ~s;
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subtype &= ~s;
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}
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}
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/* Go through all the fixups for the first sequence. Disable them
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/* Go through all the fixups for the first sequence. Disable them
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(by marking them as done) if we're going to use the second
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(by marking them as done) if we're going to use the second
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