From 97bb48126b1f09e7751332e7e6ef1d63eb937994 Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Fri, 23 Feb 2018 19:18:07 +0100 Subject: [PATCH] * lto-partition.c (lto_balanced_map): Watch overflow. From-SVN: r257939 --- gcc/lto/ChangeLog | 4 ++++ gcc/lto/lto-partition.c | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog index 62fec498380..55013a81bb2 100644 --- a/gcc/lto/ChangeLog +++ b/gcc/lto/ChangeLog @@ -1,3 +1,7 @@ +2018-02-08 Jan Hubicka + + * lto-partition.c (lto_balanced_map): Watch overflow. + 2018-02-08 Jan Hubicka PR ipa/81360 diff --git a/gcc/lto/lto-partition.c b/gcc/lto/lto-partition.c index 6055dad99b5..60daafdf375 100644 --- a/gcc/lto/lto-partition.c +++ b/gcc/lto/lto-partition.c @@ -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); -- 2.30.2