diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/toplev.c | 29 |
2 files changed, 23 insertions, 12 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 28ccdfa..e7f25ce 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2000-05-29 Richard Henderson <rth@cygnus.com> + + * toplev.c (rest_of_compilation): Set no_new_pseudos after flow1; + instead track register_life_up_to_date. Toggle no_new_pseudos + around if_convert. + 2000-05-28 Geoff Keating <geoffk@cygnus.com> * config/rs6000/rs6000.c (output_cbranch): Escape '%' characters diff --git a/gcc/toplev.c b/gcc/toplev.c index e8e279e..ef26426 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -2614,6 +2614,7 @@ rest_of_compilation (decl) int tem; int failure = 0; int rebuild_label_notes_after_reload; + int register_life_up_to_date; timevar_push (TV_REST_OF_COMPILATION); @@ -3155,6 +3156,9 @@ rest_of_compilation (decl) mark_constant_function (); timevar_pop (TV_FLOW); + register_life_up_to_date = 1; + no_new_pseudos = 1; + if (warn_uninitialized || extra_warnings) { uninitialized_vars_warning (DECL_INITIAL (decl)); @@ -3218,7 +3222,9 @@ rest_of_compilation (decl) timevar_push (TV_IFCVT); open_dump_file (DFI_ce, decl); + no_new_pseudos = 0; if_convert (1); + no_new_pseudos = 1; close_dump_file (DFI_ce, print_rtl_with_bb, insns); timevar_pop (TV_IFCVT); @@ -3240,6 +3246,11 @@ rest_of_compilation (decl) ggc_collect (); } + /* Any of the several passes since flow1 will have munged register + lifetime data a bit. */ + if (optimize > 0) + register_life_up_to_date = 0; + #ifdef OPTIMIZE_MODE_SWITCHING if (optimize) { @@ -3250,7 +3261,7 @@ rest_of_compilation (decl) /* We did work, and so had to regenerate global life information. Take advantage of this and don't re-recompute register life information below. */ - no_new_pseudos = 1; + register_life_up_to_date = 1; } timevar_pop (TV_GCSE); @@ -3277,9 +3288,9 @@ rest_of_compilation (decl) if (ggc_p) ggc_collect (); - /* Register lifetime information is up to date. From now on - we can not generate any new pseudos. */ - no_new_pseudos = 1; + /* Register lifetime information was updated as part of verifying + the schedule. */ + register_life_up_to_date = 1; } #endif @@ -3296,14 +3307,8 @@ rest_of_compilation (decl) RUN_JUMP_AFTER_RELOAD records whether or not we need to rerun the jump optimizer after register allocation and reloading are finished. */ - if (! no_new_pseudos) - { - recompute_reg_usage (insns, ! optimize_size); - - /* Register lifetime information is up to date. From now on - we can not generate any new pseudos. */ - no_new_pseudos = 1; - } + if (! register_life_up_to_date) + recompute_reg_usage (insns, ! optimize_size); regclass (insns, max_reg_num (), rtl_dump_file); rebuild_label_notes_after_reload = local_alloc (); |