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| author | Daniel Berlin <dberlin@dberlin.org> | 2005-06-10 21:34:07 +0000 |
|---|---|---|
| committer | Daniel Berlin <dberlin@gcc.gnu.org> | 2005-06-10 21:34:07 +0000 |
| commit | c45af542bdbfa069cbc8318373b5c199de168969 (patch) | |
| tree | c49b7ab0066a8daebec2563f4275123dfcb8a2a6 | |
| parent | 668c9ad1845295bc3494fa6041b84d50808c12e5 (diff) | |
| download | gcc-c45af542bdbfa069cbc8318373b5c199de168969.zip gcc-c45af542bdbfa069cbc8318373b5c199de168969.tar.gz gcc-c45af542bdbfa069cbc8318373b5c199de168969.tar.bz2 | |
lambda-code.c (replace_uses_equiv_to_x_with_y): Check step and access function against chrec_dont_know.
2005-06-10 Daniel Berlin <dberlin@dberlin.org>
* lambda-code.c (replace_uses_equiv_to_x_with_y): Check step
and access function against chrec_dont_know.
From-SVN: r100831
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/lambda-code.c | 4 |
2 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5ec8206..8b204a5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,7 +1,12 @@ 2005-06-10 Daniel Berlin <dberlin@dberlin.org> + * lambda-code.c (replace_uses_equiv_to_x_with_y): Check step + and access function against chrec_dont_know. + +2005-06-10 Daniel Berlin <dberlin@dberlin.org> + * lambda-code.c (replace_uses_of_x_with_y): Renamed and rewritten - slightly. + slightly. (exit_phi_for_loop_p): New function. (can_put_in_inner_loop): Ditto. (can_convert_to_perfect_nest): Ditto. diff --git a/gcc/lambda-code.c b/gcc/lambda-code.c index cedc8cd..6dbbe6d 100644 --- a/gcc/lambda-code.c +++ b/gcc/lambda-code.c @@ -2182,9 +2182,9 @@ replace_uses_equiv_to_x_with_y (struct loop *loop, tree stmt, tree x, access_fn = instantiate_parameters (loop, analyze_scalar_evolution (loop, use)); - if (access_fn != NULL_TREE) + if (access_fn != NULL_TREE && access_fn != chrec_dont_know) step = evolution_part_in_loop_num (access_fn, loop->num); - if ((step && int_cst_value (step) == xstep) + if ((step && step != chrec_dont_know && int_cst_value (step) == xstep) || USE_FROM_PTR (use_p) == x) SET_USE (use_p, y); } |