diff options
Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e2b4a13..af93012 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,16 @@ +2006-08-04 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> + Roger Sayle <roger@eyesopen.com> + + PR rtl-optimization/26244 + * cse.c (fold_rtx): Correctly associate shifts when const_arg1 and/or + inner_const are negative or greater than or equal to the bitsize of + MODE. If SHIFT_COUNT_TRUNCATED is false, the values aren't associated. + Otherwise, the values are masked using GET_MODE_BITSIZE (mode) - 1. + Simplify complicated if statement. For ASHIFT and LSHIFTRT, return + CONST0_RTX (mode) when the new shift count is greater than or equal to + to the bitsize of the object being shifted and XEXP (y, 0) has no side + effects. + 2006-08-04 Kazu Hirata <kazu@codesourcery.com> * tree-cfg.c: Fix a comment typo. |