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mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end of the sequences to reload the HILO register...

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* mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
        of the sequences to reload the HILO register which do not actually
        reference HILO.

From-SVN: r23430
This commit is contained in:
Jeffrey A Law 1998-10-29 17:18:07 +00:00 committed by Jeff Law
parent 60049c8def
commit 839366ddec
2 changed files with 14 additions and 0 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
* mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
of the sequences to reload the HILO register which do not actually
reference HILO.
Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
* c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.

8
gcc/config/mips/mips.md
View File

@ -4803,6 +4803,7 @@ move\\t%0,%z4\\n\\
emit_move_insn (gen_rtx (REG, SImode, 64), scratch);
emit_move_insn (scratch, loword);
emit_move_insn (gen_rtx (REG, SImode, 65), scratch);
emit_insn (gen_rtx_USE (VOIDmode, operands[0]));
}
else
{
@ -4811,6 +4812,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_ashldi3 (scratch, operands[1], GEN_INT (32)));
emit_insn (gen_ashrdi3 (scratch, scratch, GEN_INT (32)));
emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), scratch));
emit_insn (gen_rtx_USE (VOIDmode, operands[0]));
}
DONE;
}
@ -4822,6 +4824,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_movdi (operands[0], gen_rtx (REG, DImode, 64)));
emit_insn (gen_ashldi3 (operands[0], operands[0], GEN_INT (32)));
emit_insn (gen_iordi3 (operands[0], operands[0], scratch));
emit_insn (gen_rtx_USE (VOIDmode, operands[1]));
DONE;
}
/* This handles moves between a float register and HI/LO. */
@ -4851,6 +4854,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_ashldi3 (scratch, operands[1], GEN_INT (32)));
emit_insn (gen_ashrdi3 (scratch, scratch, GEN_INT (32)));
emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), scratch));
emit_insn (gen_rtx_USE (VOIDmode, operands[0]));
DONE;
}
if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) == HILO_REGNUM)
@ -4879,6 +4883,7 @@ move\\t%0,%z4\\n\\
emit_move_insn (hiword, scratch);
emit_move_insn (scratch, gen_rtx (REG, SImode, 65));
emit_move_insn (loword, scratch);
emit_insn (gen_rtx_USE (VOIDmode, operands[1]));
}
else if (TARGET_MIPS16 && ! M16_REG_P (REGNO (operands[0])))
{
@ -4893,6 +4898,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_ashldi3 (scratch2, scratch2, GEN_INT (32)));
emit_insn (gen_iordi3 (scratch, scratch, scratch2));
emit_insn (gen_movdi (operands[0], scratch));
emit_insn (gen_rtx_USE (VOIDmode, operands[1]));
}
else
{
@ -4902,6 +4908,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_movdi (operands[0], gen_rtx (REG, DImode, 64)));
emit_insn (gen_ashldi3 (operands[0], operands[0], GEN_INT (32)));
emit_insn (gen_iordi3 (operands[0], operands[0], scratch));
emit_insn (gen_rtx_USE (VOIDmode, operands[1]));
}
DONE;
}
@ -5225,6 +5232,7 @@ move\\t%0,%z4\\n\\
emit_insn (gen_movsi (gen_rtx (REG, SImode, 65), operands[1]));
emit_insn (gen_ashrsi3 (operands[2], operands[1], GEN_INT (31)));
emit_insn (gen_movsi (gen_rtx (REG, SImode, 64), operands[2]));
emit_insn (gen_rtx_USE (VOIDmode, operands[0]));
DONE;
}
/* Use a mult to reload LO on mips16. ??? This is hideous. */