diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/function.c b/gcc/function.c index 3ae5a3a..c03e2ac 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -5681,6 +5681,58 @@ get_arg_pointer_save_area (void) return ret; } + +/* If debugging dumps are requested, dump information about how the + target handled -fstack-check=clash for the prologue. + + PROBES describes what if any probes were emitted. + + RESIDUALS indicates if the prologue had any residual allocation + (i.e. total allocation was not a multiple of PROBE_INTERVAL). */ + +void +dump_stack_clash_frame_info (enum stack_clash_probes probes, bool residuals) +{ + if (!dump_file) + return; + + switch (probes) + { + case NO_PROBE_NO_FRAME: + fprintf (dump_file, + "Stack clash no probe no stack adjustment in prologue.\n"); + break; + case NO_PROBE_SMALL_FRAME: + fprintf (dump_file, + "Stack clash no probe small stack adjustment in prologue.\n"); + break; + case PROBE_INLINE: + fprintf (dump_file, "Stack clash inline probes in prologue.\n"); + break; + case PROBE_LOOP: + fprintf (dump_file, "Stack clash probe loop in prologue.\n"); + break; + } + + if (residuals) + fprintf (dump_file, "Stack clash residual allocation in prologue.\n"); + else + fprintf (dump_file, "Stack clash no residual allocation in prologue.\n"); + + if (frame_pointer_needed) + fprintf (dump_file, "Stack clash frame pointer needed.\n"); + else + fprintf (dump_file, "Stack clash no frame pointer needed.\n"); + + if (TREE_THIS_VOLATILE (cfun->decl)) + fprintf (dump_file, + "Stack clash noreturn prologue, assuming no implicit" + " probes in caller.\n"); + else + fprintf (dump_file, + "Stack clash not noreturn prologue.\n"); +} + /* Add a list of INSNS to the hash HASHP, possibly allocating HASHP for the first time. */ |