diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/expmed.c | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 95987efeb56..38dd30edfe1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2007-02-02 Ian Lance Taylor <iant@google.com> + + * expmed.c (expand_divmod): Add comment. + 2007-02-02 Kazu Hirata <kazu@codesourcery.com> * emit-rtl.c (renumber_insns): Remove. diff --git a/gcc/expmed.c b/gcc/expmed.c index fea859a18c1..8e8a63917a1 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -4176,6 +4176,9 @@ expand_divmod (int rem_flag, enum tree_code code, enum machine_mode mode, HOST_WIDE_INT d = INTVAL (op1); unsigned HOST_WIDE_INT abs_d; + /* Since d might be INT_MIN, we have to cast to + unsigned HOST_WIDE_INT before negating to avoid + undefined signed overflow. */ abs_d = (d >= 0 ? (unsigned HOST_WIDE_INT) d : - (unsigned HOST_WIDE_INT) d); |
