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| author | Vladimir Makarov <vmakarov@redhat.com> | 2012-05-10 19:58:01 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2012-05-10 19:58:01 +0000 |
| commit | e8d7e3e701e666524c9db3423a93ff84883e4a1e (patch) | |
| tree | 65f4e1002edcbf2bf9034c2a5c888f58081113dc | |
| parent | e338c25c4b366dcc55c939bc1c500652aa4577c9 (diff) | |
| download | gcc-e8d7e3e701e666524c9db3423a93ff84883e4a1e.zip gcc-e8d7e3e701e666524c9db3423a93ff84883e4a1e.tar.gz gcc-e8d7e3e701e666524c9db3423a93ff84883e4a1e.tar.bz2 | |
re PR rtl-optimization/53125 (Very slow compilation on SPARC)
2012-05-10 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/53125
* ira.c (ira): Call find_moveable_pseudos or
move_unallocated_pseudos if only ira_conflicts_p is true.
From-SVN: r187373
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ira.c | 12 |
2 files changed, 16 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 06834ad..1809d7c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-05-10 Vladimir Makarov <vmakarov@redhat.com> + + PR rtl-optimization/53125 + * ira.c (ira): Call find_moveable_pseudos or + move_unallocated_pseudos if only ira_conflicts_p is true. + 2012-05-10 Uros Bizjak <ubizjak@gmail.com> * config/i386/i386.md (*movoi_internal_avx): Handle @@ -4125,7 +4125,12 @@ ira (FILE *f) } allocated_reg_info_size = max_reg_num (); - find_moveable_pseudos (); + + /* It is not worth to do such improvement when we use a simple + allocation because of -O0 usage or because the function is too + big. */ + if (ira_conflicts_p) + find_moveable_pseudos (); max_regno_before_ira = max_reg_num (); ira_setup_eliminable_regset (); @@ -4234,7 +4239,10 @@ ira (FILE *f) max_regno * sizeof (struct ira_spilled_reg_stack_slot)); } allocate_initial_values (reg_equivs); - move_unallocated_pseudos (); + + /* See comment for find_moveable_pseudos call. */ + if (ira_conflicts_p) + move_unallocated_pseudos (); } static void |