diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2013-12-19 22:27:51 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2013-12-19 22:27:51 +0100 |
| commit | e15eb172b0dd7451f121c908a97ab86a45759993 (patch) | |
| tree | 0dd1c959d5fa1a9b4256002c3671f2654e454c31 /gcc/genattrtab.c | |
| parent | d8d79c1df220d94f4c285e0a6e1e750bfb488d78 (diff) | |
re PR other/59545 (Signed integer overflow issues)
PR other/59545
* genattrtab.c (struct attr_hash): Change hashcode type to unsigned.
(attr_hash_add_rtx, attr_hash_add_string): Change hashcode parameter
to unsigned.
(attr_rtx_1): Change hashcode variable to unsigned.
(attr_string): Likewise. Perform first multiplication in unsigned
type.
* ifcvt.c (noce_try_store_flag_constants): Avoid signed integer
overflows.
* double-int.c (neg_double): Likewise.
* stor-layout.c (set_min_and_max_values_for_integral_type): Likewise.
* combine.c (force_to_mode): Likewise.
* postreload.c (move2add_use_add2_insn, move2add_use_add3_insn,
reload_cse_move2add, move2add_note_store): Likewise.
* simplify-rtx.c (simplify_const_unary_operation,
simplify_const_binary_operation): Likewise.
* ipa-split.c (find_split_points): Initialize first.can_split
and first.non_ssa_vars.
* gengtype-state.c (read_state_files_list): Fix up check.
* genautomata.c (reserv_sets_hash_value): Use portable rotation
idiom.
java/
* class.c (hashUtf8String): Compute hash in unsigned type.
* javaop.h (WORD_TO_INT): Avoid signed integer overflow.
From-SVN: r206134
Diffstat (limited to 'gcc/genattrtab.c')
| -rw-r--r-- | gcc/genattrtab.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/genattrtab.c b/gcc/genattrtab.c index c0125d103b7..70f35316404 100644 --- a/gcc/genattrtab.c +++ b/gcc/genattrtab.c @@ -320,7 +320,7 @@ static FILE *attr_file, *dfa_file, *latency_file; struct attr_hash { struct attr_hash *next; /* Next structure in the bucket. */ - int hashcode; /* Hash code of this rtx or string. */ + unsigned int hashcode; /* Hash code of this rtx or string. */ union { char *str; /* The string (negative hash codes) */ @@ -345,7 +345,7 @@ static struct attr_hash *attr_hash_table[RTL_HASH_SIZE]; /* Add an entry to the hash table for RTL with hash code HASHCODE. */ static void -attr_hash_add_rtx (int hashcode, rtx rtl) +attr_hash_add_rtx (unsigned int hashcode, rtx rtl) { struct attr_hash *h; @@ -359,7 +359,7 @@ attr_hash_add_rtx (int hashcode, rtx rtl) /* Add an entry to the hash table for STRING with hash code HASHCODE. */ static void -attr_hash_add_string (int hashcode, char *str) +attr_hash_add_string (unsigned int hashcode, char *str) { struct attr_hash *h; @@ -384,7 +384,7 @@ static rtx attr_rtx_1 (enum rtx_code code, va_list p) { rtx rt_val = NULL_RTX;/* RTX to return to caller... */ - int hashcode; + unsigned int hashcode; struct attr_hash *h; struct obstack *old_obstack = rtl_obstack; @@ -612,15 +612,15 @@ static char * attr_string (const char *str, int len) { struct attr_hash *h; - int hashcode; + unsigned int hashcode; int i; char *new_str; /* Compute the hash code. */ - hashcode = (len + 1) * 613 + (unsigned) str[0]; + hashcode = (len + 1) * 613U + (unsigned) str[0]; for (i = 1; i < len; i += 2) hashcode = ((hashcode * 613) + (unsigned) str[i]); - if (hashcode < 0) + if ((int) hashcode < 0) hashcode = -hashcode; /* Search the table for the string. */ |