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i386.c (ix86_split_ashl): Rename single_width variable to half_width.

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* config/i386/i386.c (ix86_split_ashl): Rename single_width variable
	to half_width.  Use GET_MODE_BITSIZE to calculate mode size.
	(ix86_split_ashr): Ditto.
	(ix86_split_lshr): Ditto.

From-SVN: r164476
This commit is contained in:
Uros Bizjak 2010-09-21 13:42:06 +02:00 committed by Uros Bizjak
parent ce2b1d68a3
commit 903c31ee41
2 changed files with 27 additions and 20 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2010-09-21 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_split_ashl): Rename single_width variable
to half_width. Use GET_MODE_BITSIZE to calculate mode size.
(ix86_split_ashr): Ditto.
(ix86_split_lshr): Ditto.
2010-09-21 Richard Guenther <rguenther@suse.de>
PR tree-optimization/45580

40
gcc/config/i386/i386.c
View File

@ -18079,23 +18079,23 @@ ix86_split_ashl (rtx *operands, rtx scratch, enum machine_mode mode)
{
rtx (*gen_ashl3)(rtx, rtx, rtx);
rtx (*gen_shld)(rtx, rtx, rtx);
int half_width = GET_MODE_BITSIZE (mode) >> 1;
rtx low[2], high[2];
int count;
const int single_width = mode == DImode ? 32 : 64;
if (CONST_INT_P (operands[2]))
{
split_double_mode (mode, operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
count = INTVAL (operands[2]) & (GET_MODE_BITSIZE (mode) - 1);
if (count >= single_width)
if (count >= half_width)
{
emit_move_insn (high[0], low[1]);
emit_move_insn (low[0], const0_rtx);
if (count > single_width)
ix86_expand_ashl_const (high[0], count - single_width, mode);
if (count > half_width)
ix86_expand_ashl_const (high[0], count - half_width, mode);
}
else
{
@ -18124,7 +18124,7 @@ ix86_split_ashl (rtx *operands, rtx scratch, enum machine_mode mode)
ix86_expand_clear (low[0]);
ix86_expand_clear (high[0]);
emit_insn (gen_testqi_ccz_1 (operands[2], GEN_INT (single_width)));
emit_insn (gen_testqi_ccz_1 (operands[2], GEN_INT (half_width)));
d = gen_lowpart (QImode, low[0]);
d = gen_rtx_STRICT_LOW_PART (VOIDmode, d);
@ -18231,34 +18231,34 @@ ix86_split_ashr (rtx *operands, rtx scratch, enum machine_mode mode)
rtx (*gen_ashr3)(rtx, rtx, rtx)
= mode == DImode ? gen_ashrsi3 : gen_ashrdi3;
rtx (*gen_shrd)(rtx, rtx, rtx);
int half_width = GET_MODE_BITSIZE (mode) >> 1;
rtx low[2], high[2];
int count;
const int single_width = mode == DImode ? 32 : 64;
if (CONST_INT_P (operands[2]))
{
split_double_mode (mode, operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
count = INTVAL (operands[2]) & (GET_MODE_BITSIZE (mode) - 1);
if (count == single_width * 2 - 1)
if (count == GET_MODE_BITSIZE (mode) - 1)
{
emit_move_insn (high[0], high[1]);
emit_insn (gen_ashr3 (high[0], high[0],
GEN_INT (single_width - 1)));
GEN_INT (half_width - 1)));
emit_move_insn (low[0], high[0]);
}
else if (count >= single_width)
else if (count >= half_width)
{
emit_move_insn (low[0], high[1]);
emit_move_insn (high[0], low[0]);
emit_insn (gen_ashr3 (high[0], high[0],
GEN_INT (single_width - 1)));
GEN_INT (half_width - 1)));
if (count > single_width)
if (count > half_width)
emit_insn (gen_ashr3 (low[0], low[0],
GEN_INT (count - single_width)));
GEN_INT (count - half_width)));
}
else
{
@ -18290,7 +18290,7 @@ ix86_split_ashr (rtx *operands, rtx scratch, enum machine_mode mode)
emit_move_insn (scratch, high[0]);
emit_insn (gen_ashr3 (scratch, scratch,
GEN_INT (single_width - 1)));
GEN_INT (half_width - 1)));
emit_insn (gen_x86_shift_adj_1 (low[0], high[0], operands[2],
scratch));
}
@ -18310,24 +18310,24 @@ ix86_split_lshr (rtx *operands, rtx scratch, enum machine_mode mode)
rtx (*gen_lshr3)(rtx, rtx, rtx)
= mode == DImode ? gen_lshrsi3 : gen_lshrdi3;
rtx (*gen_shrd)(rtx, rtx, rtx);
int half_width = GET_MODE_BITSIZE (mode) >> 1;
rtx low[2], high[2];
int count;
const int single_width = mode == DImode ? 32 : 64;
if (CONST_INT_P (operands[2]))
{
split_double_mode (mode, operands, 2, low, high);
count = INTVAL (operands[2]) & (single_width * 2 - 1);
count = INTVAL (operands[2]) & (GET_MODE_BITSIZE (mode) - 1);
if (count >= single_width)
if (count >= half_width)
{
emit_move_insn (low[0], high[1]);
ix86_expand_clear (high[0]);
if (count > single_width)
if (count > half_width)
emit_insn (gen_lshr3 (low[0], low[0],
GEN_INT (count - single_width)));
GEN_INT (count - half_width)));
}
else
{