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expr.c (reload.h): Now included.

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* expr.c (reload.h): Now included.
	(emit_block_move): Set volatile_ok when checking for movstr.
	(emit_move_1): Check for replacements in addresses in multi-word case.
	* Makefile.in (expr.o): Now includes reload.h.

From-SVN: r33155
This commit is contained in:
Richard Kenner 2000-04-14 22:13:59 +00:00 committed by Richard Kenner
parent 314883b80a
commit 3ef1eef42a
3 changed files with 37 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,5 +1,10 @@
Fri Apr 14 18:07:30 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* expr.c (reload.h): Now included.
(emit_block_move): Set volatile_ok when checking for movstr.
(emit_move_1): Check for replacements in addresses in multi-word case.
* Makefile.in (expr.o): Now includes reload.h.
* flow.c (count_basic_blocks): Remove unused var PREV_CALL.
Never have a LIBCALL end a basic block.
(find_basic_blocks_1): Likewise.

2
gcc/Makefile.in
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@ -1533,7 +1533,7 @@ except.o : except.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
expr.o : expr.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h function.h \
$(REGS_H) insn-flags.h insn-codes.h $(EXPR_H) insn-config.h $(RECOG_H) \
output.h typeclass.h hard-reg-set.h toplev.h hard-reg-set.h except.h \
$(GGC_H) intl.h
reload.h $(GGC_H) intl.h
builtins.o : builtins.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
function.h $(REGS_H) insn-flags.h insn-codes.h $(EXPR_H) insn-config.h \
$(RECOG_H) output.h typeclass.h hard-reg-set.h toplev.h hard-reg-set.h \

32
gcc/expr.c
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@ -37,6 +37,7 @@ Boston, MA 02111-1307, USA. */
/* Include expr.h after insn-config.h so we get HAVE_conditional_move. */
#include "expr.h"
#include "recog.h"
#include "reload.h"
#include "output.h"
#include "typeclass.h"
#include "defaults.h"
@ -1626,6 +1627,9 @@ emit_block_move (x, y, size, align)
rtx opalign = GEN_INT (align / BITS_PER_UNIT);
enum machine_mode mode;
/* Since this is a move insn, we don't care about volatility. */
volatile_ok = 1;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_INT); mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
{
@ -1661,6 +1665,7 @@ emit_block_move (x, y, size, align)
if (pat)
{
emit_insn (pat);
volatile_ok = 0;
return 0;
}
else
@ -1668,6 +1673,8 @@ emit_block_move (x, y, size, align)
}
}
volatile_ok = 0;
/* X, Y, or SIZE may have been passed through protect_from_queue.
It is unsafe to save the value generated by protect_from_queue
@ -2720,7 +2727,7 @@ emit_move_insn_1 (x, y)
else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
{
rtx last_insn = 0;
rtx seq;
rtx seq, inner;
int need_clobber;
#ifdef PUSH_ROUNDING
@ -2734,6 +2741,29 @@ emit_move_insn_1 (x, y)
}
#endif
/* If we are in reload, see if either operand is a MEM whose address
is scheduled for replacement. */
if (reload_in_progress && GET_CODE (x) == MEM
&& (inner = find_replacement (&XEXP (x, 0))) != XEXP (x, 0))
{
rtx new = gen_rtx_MEM (GET_MODE (x), inner);
RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (x);
MEM_COPY_ATTRIBUTES (new, x);
MEM_ALIAS_SET (new) = MEM_ALIAS_SET (x);
x = new;
}
if (reload_in_progress && GET_CODE (y) == MEM
&& (inner = find_replacement (&XEXP (y, 0))) != XEXP (y, 0))
{
rtx new = gen_rtx_MEM (GET_MODE (y), inner);
RTX_UNCHANGING_P (new) = RTX_UNCHANGING_P (y);
MEM_COPY_ATTRIBUTES (new, y);
MEM_ALIAS_SET (new) = MEM_ALIAS_SET (y);
y = new;
}
start_sequence ();
need_clobber = 0;