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authorAndreas Krebbel <Andreas.Krebbel@de.ibm.com>2011-03-24 16:50:31 +0000
committerAndreas Krebbel <krebbel@gcc.gnu.org>2011-03-24 16:50:31 +0000
commitccecd6ea8890012f567540dd3cc38e3c1a522c5c (patch)
treeb0ddf7d0049d6270abcb59efbdcd34cdfd58170e /gcc/reload.c
parent111eeb6ee5705d40454c91b8baea3c1d798421d4 (diff)
downloadgcc-ccecd6ea8890012f567540dd3cc38e3c1a522c5c.tar.gz
reload.c (find_reloads_subreg_address): Add address_reloaded parameter and return true there if...
2011-03-24 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> * reload.c (find_reloads_subreg_address): Add address_reloaded parameter and return true there if the full address has been reloaded. (find_reloads_toplev): Pass address_reloaded flag. (find_reloads_address_1): Don't use address_reloaded parameter. From-SVN: r171413
Diffstat (limited to 'gcc/reload.c')
-rw-r--r--gcc/reload.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/gcc/reload.c b/gcc/reload.c
index 7c8d78effd1..e4dda401868 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -285,7 +285,7 @@ static void find_reloads_address_part (rtx, rtx *, enum reg_class,
enum machine_mode, int,
enum reload_type, int);
static rtx find_reloads_subreg_address (rtx, int, int, enum reload_type,
- int, rtx);
+ int, rtx, int *);
static void copy_replacements_1 (rtx *, rtx *, int);
static int find_inc_amount (rtx, rtx);
static int refers_to_mem_for_reload_p (rtx);
@@ -4759,7 +4759,7 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type,
|| ! offsettable_memref_p (reg_equiv_mem[regno])
|| num_not_at_initial_offset))))
x = find_reloads_subreg_address (x, 1, opnum, type, ind_levels,
- insn);
+ insn, address_reloaded);
}
for (copied = 0, i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
@@ -5995,7 +5995,7 @@ find_reloads_address_1 (enum machine_mode mode, rtx x, int context,
{
x = find_reloads_subreg_address (x, 0, opnum,
ADDR_TYPE (type),
- ind_levels, insn);
+ ind_levels, insn, NULL);
push_reload (x, NULL_RTX, loc, (rtx*) 0, rclass,
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
return 1;
@@ -6097,9 +6097,11 @@ find_reloads_address_part (rtx x, rtx *loc, enum reg_class rclass,
static rtx
find_reloads_subreg_address (rtx x, int force_replace, int opnum,
- enum reload_type type, int ind_levels, rtx insn)
+ enum reload_type type, int ind_levels, rtx insn,
+ int *address_reloaded)
{
int regno = REGNO (SUBREG_REG (x));
+ int reloaded = 0;
if (reg_equiv_memory_loc[regno])
{
@@ -6123,7 +6125,6 @@ find_reloads_subreg_address (rtx x, int force_replace, int opnum,
unsigned inner_size = GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)));
int offset;
rtx orig = tem;
- int reloaded;
/* For big-endian paradoxical subregs, SUBREG_BYTE does not
hold the correct (negative) byte offset. */
@@ -6192,11 +6193,13 @@ find_reloads_subreg_address (rtx x, int force_replace, int opnum,
&& !strict_memory_address_addr_space_p
(GET_MODE (x), XEXP (reg_equiv_mem[regno], 0),
MEM_ADDR_SPACE (reg_equiv_mem[regno])))
- push_reload (XEXP (tem, 0), NULL_RTX, &XEXP (tem, 0), (rtx*) 0,
- base_reg_class (GET_MODE (tem), MEM, SCRATCH),
- GET_MODE (XEXP (tem, 0)), VOIDmode, 0, 0,
- opnum, type);
-
+ {
+ push_reload (XEXP (tem, 0), NULL_RTX, &XEXP (tem, 0), (rtx*) 0,
+ base_reg_class (GET_MODE (tem), MEM, SCRATCH),
+ GET_MODE (XEXP (tem, 0)), VOIDmode, 0, 0,
+ opnum, type);
+ reloaded = 1;
+ }
/* If this is not a toplevel operand, find_reloads doesn't see
this substitution. We have to emit a USE of the pseudo so
that delete_output_reload can see it. */
@@ -6211,6 +6214,9 @@ find_reloads_subreg_address (rtx x, int force_replace, int opnum,
}
}
}
+ if (reloaded && address_reloaded)
+ *address_reloaded = 1;
+
return x;
}