diff options
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 4b7afe4..8371b5e 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -2788,38 +2788,6 @@ dwarf2out_frame_debug (rtx insn, bool after_p) rtx note, n; bool handled_one = false; - if (insn == NULL_RTX) - { - size_t i; - - /* Flush any queued register saves. */ - dwarf2out_flush_queued_reg_saves (); - - /* Set up state for generating call frame debug info. */ - lookup_cfa (&cfa); - gcc_assert (cfa.reg - == (unsigned long)DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM)); - - cfa.reg = STACK_POINTER_REGNUM; - cfa_store = cfa; - cfa_temp.reg = -1; - cfa_temp.offset = 0; - - for (i = 0; i < num_regs_saved_in_regs; i++) - { - regs_saved_in_regs[i].orig_reg = NULL_RTX; - regs_saved_in_regs[i].saved_in_reg = NULL_RTX; - } - num_regs_saved_in_regs = 0; - - if (barrier_args_size) - { - XDELETEVEC (barrier_args_size); - barrier_args_size = NULL; - } - return; - } - if (!NONJUMP_INSN_P (insn) || clobbers_queued_reg_save (insn)) dwarf2out_flush_queued_reg_saves (); @@ -2937,6 +2905,40 @@ dwarf2out_frame_debug (rtx insn, bool after_p) dwarf2out_flush_queued_reg_saves (); } +/* Called once at the start of final to initialize some data for the + current function. */ +void +dwarf2out_frame_debug_init (void) +{ + size_t i; + + /* Flush any queued register saves. */ + dwarf2out_flush_queued_reg_saves (); + + /* Set up state for generating call frame debug info. */ + lookup_cfa (&cfa); + gcc_assert (cfa.reg + == (unsigned long)DWARF_FRAME_REGNUM (STACK_POINTER_REGNUM)); + + cfa.reg = STACK_POINTER_REGNUM; + cfa_store = cfa; + cfa_temp.reg = -1; + cfa_temp.offset = 0; + + for (i = 0; i < num_regs_saved_in_regs; i++) + { + regs_saved_in_regs[i].orig_reg = NULL_RTX; + regs_saved_in_regs[i].saved_in_reg = NULL_RTX; + } + num_regs_saved_in_regs = 0; + + if (barrier_args_size) + { + XDELETEVEC (barrier_args_size); + barrier_args_size = NULL; + } +} + /* Determine if we need to save and restore CFI information around this epilogue. If SIBCALL is true, then this is a sibcall epilogue. If we do need to save/restore, then emit the save now, and insert a |