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* lto-partition.c (lto_balanced_map): Watch overflow.

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From-SVN: r257939
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Jan Hubicka 2018-02-23 19:18:07 +01:00 committed by Jan Hubicka
parent 1996c75efd
commit 97bb48126b
2 changed files with 6 additions and 1 deletions
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4
gcc/lto/ChangeLog
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@ -1,3 +1,7 @@
2018-02-08 Jan Hubicka <hubicka@ucw.cz>
* lto-partition.c (lto_balanced_map): Watch overflow.
2018-02-08 Jan Hubicka <hubicka@ucw.cz>
PR ipa/81360

3
gcc/lto/lto-partition.c
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@ -757,7 +757,8 @@ lto_balanced_map (int n_lto_partitions, int max_partition_size)
if (npartitions < n_lto_partitions)
partition_size = total_size / (n_lto_partitions - npartitions);
else
partition_size = INT_MAX;
/* Watch for overflow. */
partition_size = INT_MAX / 16;
if (partition_size < PARAM_VALUE (MIN_PARTITION_SIZE))
partition_size = PARAM_VALUE (MIN_PARTITION_SIZE);