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re PR bootstrap/4195 (mn10200-elf fails building libgcc __ffssi2)

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PR bootstrap/4195
	* genrecog.c (maybe_both_true_mode): Remove.
	(maybe_both_true_2, write_switch): Revert 2001-07-17 changes.
	* machmode.def (Pmode): Likewise.

From-SVN: r51115
This commit is contained in:
Jakub Jelinek 2002-03-21 08:14:18 +01:00 committed by Jakub Jelinek
parent c14b996014
commit f0e1f4829c
3 changed files with 10 additions and 42 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2002-03-21 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/4195
* genrecog.c (maybe_both_true_mode): Remove.
(maybe_both_true_2, write_switch): Revert 2001-07-17 changes.
* machmode.def (Pmode): Likewise.
Thu Mar 21 01:55:06 EST 2002 John Wehle (john@feith.com)
* alias.c: (nonlocal_mentioned_p): Use for_each_rtx.

36
gcc/genrecog.c
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@ -238,8 +238,6 @@ static void validate_pattern
static struct decision *add_to_sequence
PARAMS ((rtx, struct decision_head *, const char *, enum routine_type, int));
static int maybe_both_true_mode
PARAMS ((enum machine_mode, enum machine_mode));
static int maybe_both_true_2
PARAMS ((struct decision_test *, struct decision_test *));
static int maybe_both_true_1
@ -1056,29 +1054,6 @@ add_to_sequence (pattern, last, position, insn_type, top)
return sub;
}
/* A subroutine of maybe_both_true; compares two modes.
Returns > 0 for "definitely both true" and < 0 for "maybe both true". */
static int
maybe_both_true_mode (m1, m2)
enum machine_mode m1, m2;
{
enum mode_class other_mode_class;
/* Pmode is not a distinct mode. We do know that it is
either MODE_INT or MODE_PARTIAL_INT though. */
if (m1 == Pmode)
other_mode_class = GET_MODE_CLASS (m2);
else if (m2 == Pmode)
other_mode_class = GET_MODE_CLASS (m1);
else
return m1 == m2;
return (other_mode_class == MODE_INT
|| other_mode_class == MODE_PARTIAL_INT
? -1 : 0);
}
/* A subroutine of maybe_both_true; examines only one test.
Returns > 0 for "definitely both true" and < 0 for "maybe both true". */
@ -1091,7 +1066,7 @@ maybe_both_true_2 (d1, d2)
switch (d1->type)
{
case DT_mode:
return maybe_both_true_mode (d1->u.mode, d2->u.mode);
return d1->u.mode == d2->u.mode;
case DT_code:
return d1->u.code == d2->u.code;
@ -1127,7 +1102,7 @@ maybe_both_true_2 (d1, d2)
{
if (d2->type == DT_mode)
{
if (maybe_both_true_mode (d1->u.pred.mode, d2->u.mode) == 0
if (d1->u.pred.mode != d2->u.mode
/* The mode of an address_operand predicate is the
mode of the memory, not the operand. It can only
be used for testing the predicate, so we must
@ -1910,9 +1885,6 @@ write_switch (start, depth)
|| type == DT_elt_zero_wide_safe)
{
const char *indent = "";
/* Pmode may not be a compile-time constant. */
if (type == DT_mode && p->tests->u.mode == Pmode)
return p;
/* We cast switch parameter to integer, so we must ensure that the value
fits. */
@ -1956,10 +1928,6 @@ write_switch (start, depth)
if (nodes_identical_1 (p->tests, q->tests))
goto case_done;
/* Pmode may not be a compile-time constant. */
if (type == DT_mode && p->tests->u.mode == Pmode)
goto case_done;
if (p != start && p->need_label && needs_label == NULL)
needs_label = p;

9
gcc/machmode.def
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@ -165,14 +165,7 @@ EXTRA_CC_MODES
#undef CC
/* The symbol Pmode stands for one of the above machine modes (usually SImode).
The tm file specifies which one. It is not a distinct mode. Nevertheless,
while processing the md file, we wish to treat as a distinct mode so that
it is preserved intact through to the insn-foo.c files. This eliminates a
lot of redundancy in ports that support both 32-bit and 64-bit targets. */
#ifdef GENERATOR_FILE
#undef Pmode
DEF_MACHMODE (Pmode, "P", MODE_RANDOM, 0, 0, 0, VOIDmode, VOIDmode)
#endif
The tm file specifies which one. It is not a distinct mode. */
/*
Local variables: