diff options
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 532c98b..a3017b7 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -290,6 +290,7 @@ int sched_dump = 0; int local_reg_dump = 0; int global_reg_dump = 0; int flow2_dump = 0; +int peephole2_dump = 0; int sched2_dump = 0; int jump2_opt_dump = 0; #ifdef DELAY_SLOTS @@ -761,6 +762,9 @@ int flag_instrument_function_entry_exit = 0; int flag_no_ident = 0; +/* This will perform a peephole pass before sched2. */ +int flag_peephole2 = 0; + /* Table of supported debugging formats. */ static struct { @@ -966,7 +970,9 @@ lang_independent_options f_options[] = {"leading-underscore", &flag_leading_underscore, 1, "External symbols have a leading underscore" }, {"ident", &flag_no_ident, 0, - "Process #ident directives"} + "Process #ident directives"}, + { "peephole2", &flag_peephole2, 1, + "Enables an rtl peephole pass run before sched2" } }; #define NUM_ELEM(a) (sizeof (a) / sizeof ((a)[0])) @@ -3004,6 +3010,12 @@ compile_file (name) if (graph_dump_format != no_graph) clean_graph_dump_file (dump_base_name, ".flow2"); } + if (peephole2_dump) + { + clean_dump_file (".peephole2"); + if (graph_dump_format != no_graph) + clean_graph_dump_file (dump_base_name, ".peephole2"); + } if (sched2_dump) { clean_dump_file (".sched2"); @@ -4226,6 +4238,23 @@ rest_of_compilation (decl) print_rtl_graph_with_bb (dump_base_name, ".flow2", insns); } +#ifdef HAVE_peephole2 + if (optimize > 0 && flag_peephole2) + { + if (peephole2_dump) + open_dump_file (".peephole2", decl_printable_name (decl, 2)); + + peephole2_optimize (rtl_dump_file); + + if (peephole2_dump) + { + close_dump_file (print_rtl_with_bb, insns); + if (graph_dump_format != no_graph) + print_rtl_graph_with_bb (dump_base_name, ".peephole2", insns); + } + } +#endif + if (optimize > 0 && flag_schedule_insns_after_reload) { if (sched2_dump) @@ -4822,6 +4851,7 @@ main (argc, argv) flag_rerun_loop_opt = 1; flag_caller_saves = 1; flag_force_mem = 1; + flag_peephole2 = 1; #ifdef INSN_SCHEDULING flag_schedule_insns = 1; flag_schedule_insns_after_reload = 1; @@ -4917,6 +4947,7 @@ main (argc, argv) #ifdef MACHINE_DEPENDENT_REORG mach_dep_reorg_dump = 1; #endif + peephole2_dump = 1; break; case 'A': flag_debug_asm = 1; @@ -4996,11 +5027,14 @@ main (argc, argv) case 'w': flow2_dump = 1; break; + case 'x': + rtl_dump_and_exit = 1; + break; case 'y': set_yydebug (1); break; - case 'x': - rtl_dump_and_exit = 1; + case 'z': + peephole2_dump = 1; break; case 'D': /* these are handled by the preprocessor */ case 'I': |