diff options
Diffstat (limited to 'gcc/function.cc')
| -rw-r--r-- | gcc/function.cc | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/function.cc b/gcc/function.cc index 527ea48..7049301 100644 --- a/gcc/function.cc +++ b/gcc/function.cc @@ -84,6 +84,7 @@ along with GCC; see the file COPYING3. If not see #include "function-abi.h" #include "value-range.h" #include "gimple-range.h" +#include "insn-attr.h" /* So we can assign to cfun in this file. */ #undef cfun @@ -6629,6 +6630,11 @@ public: {} /* opt_pass methods: */ + bool gate (function *) final override + { + return !targetm.use_late_prologue_epilogue (); + } + unsigned int execute (function * fun) final override { rest_of_handle_thread_prologue_and_epilogue (fun); @@ -6637,6 +6643,44 @@ public: }; // class pass_thread_prologue_and_epilogue +const pass_data pass_data_late_thread_prologue_and_epilogue = +{ + RTL_PASS, /* type */ + "late_pro_and_epilogue", /* name */ + OPTGROUP_NONE, /* optinfo_flags */ + TV_THREAD_PROLOGUE_AND_EPILOGUE, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + ( TODO_df_verify | TODO_df_finish ), /* todo_flags_finish */ +}; + +class pass_late_thread_prologue_and_epilogue : public rtl_opt_pass +{ +public: + pass_late_thread_prologue_and_epilogue (gcc::context *ctxt) + : rtl_opt_pass (pass_data_late_thread_prologue_and_epilogue, ctxt) + {} + + /* opt_pass methods: */ + bool gate (function *) final override + { + return targetm.use_late_prologue_epilogue (); + } + + unsigned int execute (function *fn) final override + { + /* It's not currently possible to have both delay slots and + late prologue/epilogue, since the latter has to run before + the former, and the former won't honor whatever restrictions + the latter is trying to enforce. */ + gcc_assert (!DELAY_SLOTS); + rest_of_handle_thread_prologue_and_epilogue (fn); + return 0; + } +}; // class pass_late_thread_prologue_and_epilogue + } // anon namespace rtl_opt_pass * @@ -6645,6 +6689,12 @@ make_pass_thread_prologue_and_epilogue (gcc::context *ctxt) return new pass_thread_prologue_and_epilogue (ctxt); } +rtl_opt_pass * +make_pass_late_thread_prologue_and_epilogue (gcc::context *ctxt) +{ + return new pass_late_thread_prologue_and_epilogue (ctxt); +} + namespace { const pass_data pass_data_zero_call_used_regs = |