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function.c (walk_fixup_memory_subreg): New parameter 'var'. 

* function.c (walk_fixup_memory_subreg): New parameter 'var'.
	Call fixup_memory_subreg only if the MEM is equal to 'var'.
	Adjust recursive calls to self.
	(fixup_var_refs_insn): Pass 'var' to walk_fixup_memory_subreg.

From-SVN: r82555
This commit is contained in:
Eric Botcazou 2004-06-01 21:08:01 +02:00 committed by Eric Botcazou
parent c1d34f9050
commit 95c73b23dc
2 changed files with 18 additions and 11 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-06-01 Eric Botcazou <ebotcazou@act-europe.fr>
* function.c (walk_fixup_memory_subreg): New parameter 'var'.
Call fixup_memory_subreg only if the MEM is equal to 'var'.
Adjust recursive calls to self.
(fixup_var_refs_insn): Pass 'var' to walk_fixup_memory_subreg.
2004-06-01 Richard Henderson <rth@redhat.com>
Andrew Pinski <pinskia@physics.uc.edu>

22
gcc/function.c
View File

@ -241,7 +241,7 @@ static void fixup_var_refs_insn (rtx, rtx, enum machine_mode, int, int, rtx);
static void fixup_var_refs_1 (rtx, enum machine_mode, rtx *, rtx,
struct fixup_replacement **, rtx);
static rtx fixup_memory_subreg (rtx, rtx, enum machine_mode, int);
static rtx walk_fixup_memory_subreg (rtx, rtx, enum machine_mode, int);
static rtx walk_fixup_memory_subreg (rtx, rtx, rtx, enum machine_mode, int);
static rtx fixup_stack_1 (rtx, rtx);
static void optimize_bit_field (rtx, rtx, rtx *);
static void instantiate_decls (tree, int);
@ -1914,7 +1914,7 @@ fixup_var_refs_insn (rtx insn, rtx var, enum machine_mode promoted_mode,
{
if (GET_CODE (note) != INSN_LIST)
XEXP (note, 0)
= walk_fixup_memory_subreg (XEXP (note, 0), insn,
= walk_fixup_memory_subreg (XEXP (note, 0), insn, var,
promoted_mode, 1);
note = XEXP (note, 1);
}
@ -2601,17 +2601,17 @@ fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode, int uncri
return result;
}
/* Do fixup_memory_subreg on all (SUBREG (MEM ...) ...) contained in X.
/* Do fixup_memory_subreg on all (SUBREG (VAR) ...) contained in X.
VAR is a MEM that used to be a pseudo register with mode PROMOTED_MODE.
Replace subexpressions of X in place.
If X itself is a (SUBREG (MEM ...) ...), return the replacement expression.
If X itself is a (SUBREG (VAR) ...), return the replacement expression.
Otherwise return X, with its contents possibly altered.
INSN, PROMOTED_MODE and UNCRITICAL are as for
fixup_memory_subreg. */
INSN and UNCRITICAL are as for fixup_memory_subreg. */
static rtx
walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode,
int uncritical)
walk_fixup_memory_subreg (rtx x, rtx insn, rtx var,
enum machine_mode promoted_mode, int uncritical)
{
enum rtx_code code;
const char *fmt;
@ -2622,7 +2622,7 @@ walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode,
code = GET_CODE (x);
if (code == SUBREG && GET_CODE (SUBREG_REG (x)) == MEM)
if (code == SUBREG && SUBREG_REG (x) == var)
return fixup_memory_subreg (x, insn, promoted_mode, uncritical);
/* Nothing special about this RTX; fix its operands. */
@ -2631,14 +2631,14 @@ walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode,
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
{
if (fmt[i] == 'e')
XEXP (x, i) = walk_fixup_memory_subreg (XEXP (x, i), insn,
XEXP (x, i) = walk_fixup_memory_subreg (XEXP (x, i), insn, var,
promoted_mode, uncritical);
else if (fmt[i] == 'E')
{
int j;
for (j = 0; j < XVECLEN (x, i); j++)
XVECEXP (x, i, j)
= walk_fixup_memory_subreg (XVECEXP (x, i, j), insn,
= walk_fixup_memory_subreg (XVECEXP (x, i, j), insn, var,
promoted_mode, uncritical);
}
}