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expr.c (convert_move): Use emit_store_flag instead of "emulating" it.

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2009-04-07  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (convert_move): Use emit_store_flag instead of
        "emulating" it.

From-SVN: r145666
This commit is contained in:
Paolo Bonzini 2009-04-07 12:30:59 +00:00 committed by Paolo Bonzini
parent 67b8f1c149
commit 9a53bc17c4
2 changed files with 8 additions and 21 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2009-04-07 Paolo Bonzini <bonzini@gnu.org>
* expr.c (convert_move): Use emit_store_flag instead of
"emulating" it.
2009-04-07 Paolo Bonzini <bonzini@gnu.org>
* config/i386/i386.c (ix86_compare_emitted): Remove.

24
gcc/expr.c
View File

@ -588,27 +588,9 @@ convert_move (rtx to, rtx from, int unsignedp)
if (unsignedp)
fill_value = const0_rtx;
else
{
#ifdef HAVE_slt
if (HAVE_slt
&& insn_data[(int) CODE_FOR_slt].operand[0].mode == word_mode
&& STORE_FLAG_VALUE == -1)
{
emit_cmp_insn (lowfrom, const0_rtx, NE, NULL_RTX,
lowpart_mode, 0);
fill_value = gen_reg_rtx (word_mode);
emit_insn (gen_slt (fill_value));
}
else
#endif
{
fill_value
= expand_shift (RSHIFT_EXPR, lowpart_mode, lowfrom,
size_int (GET_MODE_BITSIZE (lowpart_mode) - 1),
NULL_RTX, 0);
fill_value = convert_to_mode (word_mode, fill_value, 1);
}
}
fill_value = emit_store_flag (gen_reg_rtx (word_mode),
LT, lowfrom, const0_rtx,
VOIDmode, 0, -1);
/* Fill the remaining words. */
for (i = GET_MODE_SIZE (lowpart_mode) / UNITS_PER_WORD; i < nwords; i++)