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| author | Vladimir Makarov <vmakarov@redhat.com> | 2012-10-25 16:54:14 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2012-10-25 16:54:14 +0000 |
| commit | 992ca0f0697472856e4b7cc81185c1c787b2398b (patch) | |
| tree | 170ede345b8f39e46ddcf68b87e9602ae61772e5 | |
| parent | 479f435805a0f9aaf2d70628ff8860c5fa22d663 (diff) | |
| download | gcc-992ca0f0697472856e4b7cc81185c1c787b2398b.zip gcc-992ca0f0697472856e4b7cc81185c1c787b2398b.tar.gz gcc-992ca0f0697472856e4b7cc81185c1c787b2398b.tar.bz2 | |
lra-assigns.c (assign_by_spills): Add non-reload pseudos assigned to hard register to changed_pseudo_bitmap.
2012-10-25 Vladimir Makarov <vmakarov@redhat.com>
* lra-assigns.c (assign_by_spills): Add non-reload pseudos
assigned to hard register to changed_pseudo_bitmap.
From-SVN: r192817
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/lra-assigns.c | 18 |
2 files changed, 17 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b9eeece..effaa8f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-10-25 Vladimir Makarov <vmakarov@redhat.com> + + * lra-assigns.c (assign_by_spills): Add non-reload pseudos + assigned to hard register to changed_pseudo_bitmap. + 2012-10-25 Ralf Corsépius <ralf.corsepius@rtems.org> * config.gcc (microblaze*-*-rtems*): New target. diff --git a/gcc/lra-assigns.c b/gcc/lra-assigns.c index b9575637..bcf26af 100644 --- a/gcc/lra-assigns.c +++ b/gcc/lra-assigns.c @@ -1159,6 +1159,7 @@ assign_by_spills (void) bitmap_head non_reload_pseudos; unsigned int u; bitmap_iterator bi; + bool reload_p; int max_regno = max_reg_num (); for (n = 0, i = lra_constraint_new_regno_start; i < max_regno; i++) @@ -1193,12 +1194,12 @@ assign_by_spills (void) lra_reg_info[regno].freq, regno_assign_info[regno].first, regno_assign_info[regno_assign_info[regno].first].freq); hard_regno = find_hard_regno_for (regno, &cost, -1); - if (hard_regno < 0 - && ! bitmap_bit_p (&non_reload_pseudos, regno)) + reload_p = ! bitmap_bit_p (&non_reload_pseudos, regno); + if (hard_regno < 0 && reload_p) hard_regno = spill_for (regno, &all_spilled_pseudos); if (hard_regno < 0) { - if (! bitmap_bit_p (&non_reload_pseudos, regno)) + if (reload_p) sorted_pseudos[nfails++] = regno; } else @@ -1207,6 +1208,11 @@ assign_by_spills (void) pass. Indicate that it is no longer spilled. */ bitmap_clear_bit (&all_spilled_pseudos, regno); assign_hard_regno (hard_regno, regno); + if (! reload_p) + /* As non-reload pseudo assignment is changed we + should reconsider insns referring for the + pseudo. */ + bitmap_set_bit (&changed_pseudo_bitmap, regno); } } if (nfails == 0) @@ -1308,9 +1314,9 @@ assign_by_spills (void) if (hard_regno >= 0) { assign_hard_regno (hard_regno, regno); - /* We change allocation for non-reload pseudo on this - iteration -- mark the pseudo for invalidation of used - alternatives of insns containing the pseudo. */ + /* We change allocation for non-reload pseudo on this + iteration -- mark the pseudo for invalidation of used + alternatives of insns containing the pseudo. */ bitmap_set_bit (&changed_pseudo_bitmap, regno); } } |