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doloop.c, [...]: Use const0_rtx instead of GEN_INT (0).

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* doloop.c, optabs.c, regmove.c, sched-deps.c,
	config/i386/i386.c, config/i386/i386.md: Use const0_rtx
	instead of GEN_INT (0).  Do the same for other constants that
	are readily available.

From-SVN: r77160
This commit is contained in:
Kazu Hirata 2004-02-03 05:39:57 +00:00 committed by Kazu Hirata
parent 2fb00d7f2b
commit 60c81c8995
7 changed files with 23 additions and 16 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-02-03 Kazu Hirata <kazu@cs.umass.edu>
* doloop.c, optabs.c, regmove.c, sched-deps.c,
config/i386/i386.c, config/i386/i386.md: Use const0_rtx
instead of GEN_INT (0). Do the same for other constants that
are readily available.
2004-02-03 Kazu Hirata <kazu@cs.umass.edu>
* combine.c (simplify_set): Use gen_rtx_fmt_e instead of

16
gcc/config/i386/i386.c
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@ -11632,9 +11632,9 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL,
Pmode, 1, align_4_label);
emit_cmp_and_jump_insns (align_rtx, GEN_INT (2), EQ, NULL,
emit_cmp_and_jump_insns (align_rtx, const2_rtx, EQ, NULL,
Pmode, 1, align_2_label);
emit_cmp_and_jump_insns (align_rtx, GEN_INT (2), GTU, NULL,
emit_cmp_and_jump_insns (align_rtx, const2_rtx, GTU, NULL,
Pmode, 1, align_3_label);
}
else
@ -11642,7 +11642,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
/* Since the alignment is 2, we have to check 2 or 0 bytes;
check if is aligned to 4 - byte. */
align_rtx = expand_binop (Pmode, and_optab, scratch1, GEN_INT (2),
align_rtx = expand_binop (Pmode, and_optab, scratch1, const2_rtx,
NULL_RTX, 0, OPTAB_WIDEN);
emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL,
@ -11728,7 +11728,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
tmpreg)));
/* Emit lea manually to avoid clobbering of flags. */
emit_insn (gen_rtx_SET (SImode, reg2,
gen_rtx_PLUS (Pmode, out, GEN_INT (2))));
gen_rtx_PLUS (Pmode, out, const2_rtx)));
tmp = gen_rtx_REG (CCNOmode, FLAGS_REG);
tmp = gen_rtx_EQ (VOIDmode, tmp, const0_rtx);
@ -11755,9 +11755,9 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
/* Not in the first two. Move two bytes forward. */
emit_insn (gen_lshrsi3 (tmpreg, tmpreg, GEN_INT (16)));
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, GEN_INT (2)));
emit_insn (gen_adddi3 (out, out, const2_rtx));
else
emit_insn (gen_addsi3 (out, out, GEN_INT (2)));
emit_insn (gen_addsi3 (out, out, const2_rtx));
emit_label (end_2_label);
@ -14487,7 +14487,7 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
expand_expr (arg0, NULL_RTX, VOIDmode, 0));
op0 = gen_reg_rtx (V2DFmode);
emit_insn (gen_sse2_loadsd (op0, adjust_address (target, V2DFmode, 0)));
emit_insn (gen_sse2_shufpd (op0, op0, op0, GEN_INT (0)));
emit_insn (gen_sse2_shufpd (op0, op0, op0, const0_rtx));
return op0;
case IX86_BUILTIN_SETPD:
@ -14505,7 +14505,7 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
case IX86_BUILTIN_LOADRPD:
target = ix86_expand_unop_builtin (CODE_FOR_sse2_movapd, arglist,
gen_reg_rtx (V2DFmode), 1);
emit_insn (gen_sse2_shufpd (target, target, target, GEN_INT (1)));
emit_insn (gen_sse2_shufpd (target, target, target, const1_rtx));
return target;
case IX86_BUILTIN_LOADPD1:

2
gcc/config/i386/i386.md
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@ -4887,7 +4887,7 @@
emit_move_insn (tmp, operands[1]);
emit_insn (gen_sse_shufps (op0, tmp, tmp,
GEN_INT (1)));
const1_rtx));
}
case 2:
{

4
gcc/doloop.c
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@ -1,5 +1,5 @@
/* Perform doloop optimizations
Copyright (C) 1999, 2000, 2001, 2002, 2003
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
@ -475,7 +475,7 @@ doloop_modify (const struct loop *loop, rtx iterations, rtx iterations_max,
count = GEN_INT (INTVAL (count) - 1);
else
count = expand_simple_binop (GET_MODE (counter_reg), MINUS,
count, GEN_INT (1),
count, const1_rtx,
0, 0, OPTAB_LIB_WIDEN);
}

6
gcc/optabs.c
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@ -2358,7 +2358,7 @@ expand_parity (enum machine_mode mode, rtx op0, rtx target)
temp = expand_unop (wider_mode, popcount_optab, xop0, NULL_RTX,
true);
if (temp != 0)
temp = expand_binop (wider_mode, and_optab, temp, GEN_INT (1),
temp = expand_binop (wider_mode, and_optab, temp, const1_rtx,
target, true, OPTAB_DIRECT);
if (temp == 0)
delete_insns_since (last);
@ -3337,9 +3337,9 @@ emit_libcall_block (rtx insns, rtx target, rtx result, rtx equiv)
rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (note != 0)
XEXP (note, 0) = GEN_INT (-1);
XEXP (note, 0) = constm1_rtx;
else
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EH_REGION, GEN_INT (-1),
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EH_REGION, constm1_rtx,
REG_NOTES (insn));
}

2
gcc/regmove.c
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@ -167,7 +167,7 @@ discover_flags_reg (void)
{
rtx tmp;
tmp = gen_rtx_REG (word_mode, 10000);
tmp = gen_add3_insn (tmp, tmp, GEN_INT (2));
tmp = gen_add3_insn (tmp, tmp, const2_rtx);
/* If we get something that isn't a simple set, or a
[(set ..) (clobber ..)], this whole function will go wrong. */

2
gcc/sched-deps.c
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@ -1267,7 +1267,7 @@ sched_analyze (struct deps *deps, rtx head, rtx tail)
|| NOTE_LINE_NUMBER (insn) == NOTE_INSN_EH_REGION_END)
rtx_region = GEN_INT (NOTE_EH_HANDLER (insn));
else
rtx_region = GEN_INT (0);
rtx_region = const0_rtx;
loop_notes = alloc_EXPR_LIST (REG_SAVE_NOTE,
rtx_region,