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| author | Alexandre Oliva <aoliva@redhat.com> | 2010-06-14 19:18:04 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2010-06-14 19:18:04 +0000 |
| commit | c11b0b3b811ccc0a7321843f5d6af42c44af6eea (patch) | |
| tree | fff5fede01f524fbf10d82bdd032fc95b619e852 | |
| parent | 2465dcc257488294138948de82a734c31b504ecf (diff) | |
| download | gcc-c11b0b3b811ccc0a7321843f5d6af42c44af6eea.zip gcc-c11b0b3b811ccc0a7321843f5d6af42c44af6eea.tar.gz gcc-c11b0b3b811ccc0a7321843f5d6af42c44af6eea.tar.bz2 | |
re PR debug/43656 ("-fcompare-debug failure" with "-O2 -fschedule-insns -fsched-pressure -funroll-loops -fgraphite-identity")
PR debug/43656
* haifa-sched.c (setup_insn_reg_pressure_info,
update_register_pressure): Reject debug insns.
(ready_sort): Don't setup reg pressure for debug insns.
(schedule_insn): Don't update reg pressure for debug insns.
From-SVN: r160761
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/haifa-sched.c | 9 |
2 files changed, 15 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c4f9c04..ea90541 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2010-06-14 Alexandre Oliva <aoliva@redhat.com> + + PR debug/43656 + * haifa-sched.c (setup_insn_reg_pressure_info, + update_register_pressure): Reject debug insns. + (ready_sort): Don't setup reg pressure for debug insns. + (schedule_insn): Don't update reg pressure for debug insns. + 2010-06-14 Richard Guenther <rguenther@suse.de> * lto-streamer.c (cached_bp): Remove. diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 2effed2..8d7149f 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -1124,6 +1124,8 @@ setup_insn_reg_pressure_info (rtx insn) struct reg_use_data *use; static int death[N_REG_CLASSES]; + gcc_checking_assert (!DEBUG_INSN_P (insn)); + excess_cost_change = 0; for (i = 0; i < ira_reg_class_cover_size; i++) death[ira_reg_class_cover[i]] = 0; @@ -1500,7 +1502,8 @@ ready_sort (struct ready_list *ready) if (sched_pressure_p) { for (i = 0; i < ready->n_ready; i++) - setup_insn_reg_pressure_info (first[i]); + if (!DEBUG_INSN_P (first[i])) + setup_insn_reg_pressure_info (first[i]); } SCHED_SORT (first, ready->n_ready); } @@ -1564,6 +1567,8 @@ update_register_pressure (rtx insn) struct reg_use_data *use; struct reg_set_data *set; + gcc_checking_assert (!DEBUG_INSN_P (insn)); + for (use = INSN_REG_USE_LIST (insn); use != NULL; use = use->next_insn_use) if (dying_use_p (use) && bitmap_bit_p (curr_reg_live, use->regno)) mark_regno_birth_or_death (use->regno, false); @@ -1684,7 +1689,7 @@ schedule_insn (rtx insn) fputc ('\n', sched_dump); } - if (sched_pressure_p) + if (sched_pressure_p && !DEBUG_INSN_P (insn)) update_reg_and_insn_max_reg_pressure (insn); /* Scheduling instruction should have all its dependencies resolved and |