diff options
| author | Richard Henderson <rth@redhat.com> | 2004-09-11 13:07:11 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-09-11 13:07:11 -0700 |
| commit | f4a6d54edd0ad80bcad9573d1cba9ded7f7e995c (patch) | |
| tree | 8c2e23decfbecbb98c4a72def6aa1886c81fad1e /gcc | |
| parent | 1d1df0df43b306fef358d1d3f1378b593a75d5a9 (diff) | |
| download | gcc-f4a6d54edd0ad80bcad9573d1cba9ded7f7e995c.tar.gz | |
re PR middle-end/17416 (stack variable merging doesn't work)
PR middle-end/17416
* cfgexpand.c (expand_used_vars_for_block): Fix off-by-one bug
in conflict loop.
From-SVN: r87366
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cfgexpand.c | 8 |
2 files changed, 8 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e0c197a9cd7..0e371fa6ab4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-09-11 Richard Henderson <rth@redhat.com> + + PR middle-end/17416 + * cfgexpand.c (expand_used_vars_for_block): Fix off-by-one bug + in conflict loop. + 2004-09-11 Jan Hubicka <jh@suse.cz> * i386.h (MODE_NEEDED): Calls need UNINITIALIZED mode; add comment. diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index b73445d0b18..71dd039ca31 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -670,12 +670,8 @@ expand_used_vars_for_block (tree block, bool toplevel) resize_stack_vars_conflict (new_sv_num); for (i = old_sv_num; i < new_sv_num; ++i) - for (j = i < this_sv_num ? i : this_sv_num; ; --j) - { - add_stack_var_conflict (i, j); - if (j == old_sv_num) - break; - } + for (j = i < this_sv_num ? i+1 : this_sv_num; j-- > old_sv_num ;) + add_stack_var_conflict (i, j); } } |