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cp-demangle.c (d_substitution): Correct overflow check to avoid -fstrict-overflow optimizations.

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* cp-demangle.c (d_substitution): Correct overflow check to avoid
	-fstrict-overflow optimizations.

From-SVN: r133761
This commit is contained in:
Ian Lance Taylor 2008-03-31 17:38:38 +00:00 committed by Ian Lance Taylor
parent bd60bab2ad
commit eeda7b98fd
2 changed files with 13 additions and 5 deletions
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5
libiberty/ChangeLog
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@ -1,3 +1,8 @@
2008-03-31 Ian Lance Taylor <iant@google.com>
* cp-demangle.c (d_substitution): Correct overflow check to avoid
-fstrict-overflow optimizations.
2008-03-27 Paolo Bonzini <bonzini@gnu.org>
* configure.ac (frags): Don't set, use frag instead.

13
libiberty/cp-demangle.c
View File

@ -2681,21 +2681,24 @@ d_substitution (struct d_info *di, int prefix)
c = d_next_char (di);
if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
{
int id;
unsigned int id;
id = 0;
if (c != '_')
{
do
{
unsigned int new_id;
if (IS_DIGIT (c))
id = id * 36 + c - '0';
new_id = id * 36 + c - '0';
else if (IS_UPPER (c))
id = id * 36 + c - 'A' + 10;
new_id = id * 36 + c - 'A' + 10;
else
return NULL;
if (id < 0)
if (new_id < id)
return NULL;
id = new_id;
c = d_next_char (di);
}
while (c != '_');
@ -2703,7 +2706,7 @@ d_substitution (struct d_info *di, int prefix)
++id;
}
if (id >= di->next_sub)
if (id >= (unsigned int) di->next_sub)
return NULL;
++di->did_subs;