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cris.c (cris_notice_update_cc): Check first destination also against overlap with cc_status.value2 and second...

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* config/cris/cris.c (cris_notice_update_cc): Check first
	destination also against overlap with cc_status.value2 and second
	destination against overlap with cc_status.value1.  For overlaps,
	clear overlapped value, don't just CC_STATUS_INIT.

	* config/cris/cris.h (EXTRA_CONSTRAINT_T): Fix spacing and FIXME.
	(LINK_SPEC): Remove whitespace at end of line.

From-SVN: r47463
This commit is contained in:
Hans-Peter Nilsson 2001-11-30 00:17:49 +00:00 committed by Hans-Peter Nilsson
parent c65fd410e9
commit d3295e2542
3 changed files with 42 additions and 18 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2001-11-30 Hans-Peter Nilsson <hp@axis.com>
* config/cris/cris.c (cris_notice_update_cc): Check first
destination also against overlap with cc_status.value2 and second
destination against overlap with cc_status.value1. For overlaps,
clear overlapped value, don't just CC_STATUS_INIT.
* config/cris/cris.h (EXTRA_CONSTRAINT_T): Fix spacing and FIXME.
(LINK_SPEC): Remove whitespace at end of line.
2001-11-29 Jakub Jelinek <jakub@redhat.com>
* c-lex.c (init_c_lex): Canonicalize "-" filename to "".

39
gcc/config/cris/cris.c
View File

@ -1953,17 +1953,34 @@ cris_notice_update_cc (exp, insn)
{
/* For "move.S rz,[rx=ry+o]" and "clear.S [rx=ry+o]",
say flags are not changed, except for overlap. */
if ((cc_status.value1
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 0), 0),
cc_status.value1))
|| (cc_status.value2
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 1), 0),
cc_status.value2)))
CC_STATUS_INIT;
if (cc_status.value1
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 0), 0),
cc_status.value1))
cc_status.value1 = 0;
if (cc_status.value1
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 1), 0),
cc_status.value1))
cc_status.value1 = 0;
if (cc_status.value2
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 0), 0),
cc_status.value2))
cc_status.value2 = 0;
if (cc_status.value2
&& cris_reg_overlap_mentioned_p (XEXP
(XVECEXP
(exp, 0, 1), 0),
cc_status.value2))
cc_status.value2 = 0;
return;
}
}

11
gcc/config/cris/cris.h
View File

@ -204,7 +204,7 @@ extern const char *cris_elinux_stacksize_str;
#undef LINK_SPEC
#define LINK_SPEC \
"%{v:--verbose}\
%(link_subtarget)"
%(link_subtarget)"
/* For the cris-*-elf subtarget. */
#define CRIS_LINK_SUBTARGET_SPEC \
@ -775,16 +775,13 @@ enum reg_class {NO_REGS, ALL_REGS, LIM_REG_CLASSES};
|| CONSTANT_INDEX_P (X) \
)
/* FIXME: Bug below: We can't have XEXP (X, 0)) both be MEM and a
CONSTANT_P. Parens don't match indentation. */
#define EXTRA_CONSTRAINT_T(X) \
( \
/* Three-address-operands. All are indirect-memory: */ \
/* Memory three-address operand. All are indirect-memory: */ \
GET_CODE (X) == MEM \
&& ((GET_CODE (XEXP (X, 0)) == MEM \
/* Double indirect: [[reg]] or [[reg+]]? */ \
&& (BASE_OR_AUTOINCR_P (XEXP (XEXP (X, 0), 0)))) \
/* Double indirect: [[reg]] or [[reg+]]? */ \
&& (BASE_OR_AUTOINCR_P (XEXP (XEXP (X, 0), 0)))) \
/* Just an explicite indirect reference: [const]? */ \
|| CONSTANT_P (XEXP (X, 0)) \
/* Something that is indexed; [...+...]? */ \