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i386-modes.def: Fix comment typos.

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* config/i386/i386-modes.def: Fix comment typos.
	* config/i386/i386.c: Likewise.
	* config/i386/i386.md: Likewise.

From-SVN: r61855
This commit is contained in:
Kazu Hirata 2003-01-26 19:59:27 +00:00 committed by Kazu Hirata
parent 7aa6688e8e
commit 4aae8a9a4b
4 changed files with 11 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2003-01-26 Kazu Hirata <kazu@cs.umass.edu>
* config/i386/i386-modes.def: Fix comment typos.
* config/i386/i386.c: Likewise.
* config/i386/i386.md: Likewise.
2003-01-26 Steven Bosscher <s.bosscher@student.tudelft.nl>
* config/avr/avr.h, config/cris/aout.h, config/elfos.h,

4
gcc/config/i386/i386-modes.def
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@ -27,11 +27,11 @@ Boston, MA 02111-1307, USA. */
Overflow flag to be unset. Sign bit test is used instead and
thus can be used to form "a&b>0" type of tests.
Add CCGC to indicate comparisons agains zero that allows
Add CCGC to indicate comparisons against zero that allows
unspecified garbage in the Carry flag. This mode is used
by inc/dec instructions.
Add CCGOC to indicate comparisons agains zero that allows
Add CCGOC to indicate comparisons against zero that allows
unspecified garbage in the Carry and Overflow flag. This
mode is used to simulate comparisons of (a-b) and (a+b)
against zero using sub/cmp/add operations.

4
gcc/config/i386/i386.c
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@ -8465,7 +8465,7 @@ ix86_cc_mode (code, op0, op1)
return CCGCmode;
/* Codes doable only with sign flag when comparing
against zero, but we miss jump instruction for it
so we need to use relational tests agains overflow
so we need to use relational tests against overflow
that thus needs to be zero. */
case GT: /* ZF=0 & SF=OF */
case LE: /* ZF=1 | SF<>OF */
@ -10765,7 +10765,7 @@ ix86_expand_movstr (dst, src, count_exp, align_exp)
handle small counts using the loops. Many CPUs (such as Athlon)
have large REP prefix setup costs.
This is quite costy. Maybe we can revisit this decision later or
This is quite costly. Maybe we can revisit this decision later or
add some customizability to this code. */
if (count == 0 && align < desired_alignment)

2
gcc/config/i386/i386.md
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@ -5867,7 +5867,7 @@
(const_string "alu")))
(set_attr "mode" "SI")])
; For comparisons agains 1, -1 and 128, we may generate better code
; For comparisons against 1, -1 and 128, we may generate better code
; by converting cmp to add, inc or dec as done by peephole2. This pattern
; is matched then. We can't accept general immediate, because for
; case of overflows, the result is messed up.