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emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx. 

* emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx.
	* combine.c (move_deaths): Use regno_reg_rtx for hard regs rather
	than creating a new register.
	(distribute_notes): Likewise.
	* df.c (df_reg_use_gen): Likewise.
	(df_reg_clobber_gen): Likewise.
	(df_ref_record): Likewise.
	* expr.c (use_regs): Likewise.
	* flow.c (propagate_one_insn): Likewise.
	(mark_set_1): Likewise.
	(mark_used_reg): Likewise.
	* reload.c (emit_reload_insns): Likewise.

From-SVN: r54358
This commit is contained in:
Jeff Law 2002-06-07 19:51:22 -06:00 committed by Jeff Law
parent bc9c18c319
commit e50126e858
6 changed files with 32 additions and 15 deletions
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15
gcc/ChangeLog
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@ -1,3 +1,18 @@
2002-06-07 Jeff Law <law@redhat.com
* emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx.
* combine.c (move_deaths): Use regno_reg_rtx for hard regs rather
than creating a new register.
(distribute_notes): Likewise.
* df.c (df_reg_use_gen): Likewise.
(df_reg_clobber_gen): Likewise.
(df_ref_record): Likewise.
* expr.c (use_regs): Likewise.
* flow.c (propagate_one_insn): Likewise.
(mark_set_1): Likewise.
(mark_used_reg): Likewise.
* reload.c (emit_reload_insns): Likewise.
2002-06-07 Roger Sayle <roger@eyesopen.com>
* simplify-rtx.c (simplify_gen_relational): Simplify RTL of the form

6
gcc/combine.c
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@ -11944,7 +11944,7 @@ move_deaths (x, maybe_kill_insn, from_cuid, to_insn, pnotes)
if (i < regno || i >= ourend)
REG_NOTES (where_dead)
= gen_rtx_EXPR_LIST (REG_DEAD,
gen_rtx_REG (reg_raw_mode[i], i),
regno_reg_rtx[i],
REG_NOTES (where_dead));
}
@ -11971,7 +11971,7 @@ move_deaths (x, maybe_kill_insn, from_cuid, to_insn, pnotes)
offset = 1;
for (i = regno + offset; i < ourend; i++)
move_deaths (gen_rtx_REG (reg_raw_mode[i], i),
move_deaths (regno_reg_rtx[i],
maybe_kill_insn, from_cuid, to_insn, &oldnotes);
}
@ -12593,7 +12593,7 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1)
for (i = regno; i < endregno;
i += HARD_REGNO_NREGS (i, reg_raw_mode[i]))
{
rtx piece = gen_rtx_REG (reg_raw_mode[i], i);
rtx piece = regno_reg_rtx[i];
basic_block bb = this_basic_block;
if (! dead_or_set_p (place, piece)

8
gcc/df.c
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@ -625,8 +625,7 @@ static rtx df_reg_use_gen (regno)
rtx reg;
rtx use;
reg = regno >= FIRST_PSEUDO_REGISTER
? regno_reg_rtx[regno] : gen_rtx_REG (reg_raw_mode[regno], regno);
reg = regno_reg_rtx[regno];
use = gen_rtx_USE (GET_MODE (reg), reg);
return use;
@ -640,8 +639,7 @@ static rtx df_reg_clobber_gen (regno)
rtx reg;
rtx use;
reg = regno >= FIRST_PSEUDO_REGISTER
? regno_reg_rtx[regno] : gen_rtx_REG (reg_raw_mode[regno], regno);
reg = regno_reg_rtx[regno];
use = gen_rtx_CLOBBER (GET_MODE (reg), reg);
return use;
@ -897,7 +895,7 @@ df_ref_record (df, reg, loc, insn, ref_type, ref_flags)
endregno = regno + HARD_REGNO_NREGS (regno, GET_MODE (reg));
for (i = regno; i < endregno; i++)
df_ref_record_1 (df, gen_rtx_REG (reg_raw_mode[i], i),
df_ref_record_1 (df, regno_reg_rtx[i],
loc, insn, ref_type, ref_flags);
}
else

6
gcc/emit-rtl.c
View File

@ -4913,6 +4913,7 @@ void
init_emit ()
{
struct function *f = cfun;
int i;
f->emit = (struct emit_status *) ggc_alloc (sizeof (struct emit_status));
first_insn = NULL;
@ -4942,9 +4943,14 @@ init_emit ()
= (tree *) ggc_alloc_cleared (f->emit->regno_pointer_align_length
* sizeof (tree));
/* Put copies of all the hard registers into regno_reg_rtx. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
regno_reg_rtx[i] = gen_raw_REG (reg_raw_mode[i], i);
/* Put copies of all the virtual register rtx into regno_reg_rtx. */
init_virtual_regs (f->emit);
/* Indicate that the virtual registers and stack locations are
all pointers. */
REG_POINTER (stack_pointer_rtx) = 1;

2
gcc/expr.c
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@ -2293,7 +2293,7 @@ use_regs (call_fusage, regno, nregs)
abort ();
for (i = 0; i < nregs; i++)
use_reg (call_fusage, gen_rtx_REG (reg_raw_mode[regno + i], regno + i));
use_reg (call_fusage, regno_reg_rtx[regno + i]);
}
/* Add USE expressions to *CALL_FUSAGE for each REG contained in the

10
gcc/flow.c
View File

@ -1767,8 +1767,7 @@ propagate_one_insn (pbi, insn)
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i))
{
/* We do not want REG_UNUSED notes for these registers. */
mark_set_1 (pbi, CLOBBER, gen_rtx_REG (reg_raw_mode[i], i),
cond, insn,
mark_set_1 (pbi, CLOBBER, regno_reg_rtx[i], cond, insn,
pbi->flags & ~(PROP_DEATH_NOTES | PROP_REG_INFO));
}
}
@ -1816,8 +1815,7 @@ propagate_one_insn (pbi, insn)
so they are made live. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (global_regs[i])
mark_used_reg (pbi, gen_rtx_REG (reg_raw_mode[i], i),
cond, insn);
mark_used_reg (pbi, regno_reg_rtx[i], cond, insn);
}
}
@ -2817,7 +2815,7 @@ mark_set_1 (pbi, code, reg, cond, insn, flags)
if (! REGNO_REG_SET_P (pbi->reg_live, i))
REG_NOTES (insn)
= alloc_EXPR_LIST (REG_UNUSED,
gen_rtx_REG (reg_raw_mode[i], i),
regno_reg_rtx[i],
REG_NOTES (insn));
}
}
@ -3625,7 +3623,7 @@ mark_used_reg (pbi, reg, cond, insn)
&& ! dead_or_set_regno_p (insn, i))
REG_NOTES (insn)
= alloc_EXPR_LIST (REG_DEAD,
gen_rtx_REG (reg_raw_mode[i], i),
regno_reg_rtx[i],
REG_NOTES (insn));
}
}