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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5cd6c358562..c2b35d3538c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,15 @@ 2013-02-21 Jakub Jelinek <jakub@redhat.com> + PR middle-end/56420 + * expmed.c (EXACT_POWER_OF_2_OR_ZERO_P): Do subtraction in uhwi, to + avoid signed wrapping. + (expand_mult): Handle properly multiplication by + ((dword_type) -1) << (BITS_PER_WORD - 1). Improve multiplication by + ((dword_type) 1) << (BITS_PER_WORD - 1). Avoid undefined behavior + in the compiler if coeff is HOST_WIDE_INT_MIN. + (expand_divmod): Don't make ext_op1 static, change it's type to + uhwi. Avoid undefined behavior in -INTVAL (op1). + PR rtl-optimization/50339 * lower-subreg.h (struct lower_subreg_choices): Add splitting_ashiftrt field. |