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| author | Richard Henderson <rth@redhat.com> | 2003-09-17 16:45:59 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2003-09-17 16:45:59 -0700 |
| commit | 7d8405cf155eb83392842b54ebc955654b35a980 (patch) | |
| tree | 4ed2b907bf6403c8f3b0fbfbc9177ada6021e643 | |
| parent | dc5f3d7ca9abac8aef031d45d0c3f041ca3b8ed3 (diff) | |
| download | gcc-7d8405cf155eb83392842b54ebc955654b35a980.zip gcc-7d8405cf155eb83392842b54ebc955654b35a980.tar.gz gcc-7d8405cf155eb83392842b54ebc955654b35a980.tar.bz2 | |
* cfg.c (dump_flow_info): Skip register dump if reg_n_info null.
From-SVN: r71485
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/cfg.c | 83 |
2 files changed, 46 insertions, 41 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fd13355..548c73d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-09-17 Richard Henderson <rth@redhat.com> + + * cfg.c (dump_flow_info): Skip register dump if reg_n_info null. + 2003-09-17 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> * configure.in (gcc_cv_ld_hidden): Don't test gnu_ld_flag. @@ -491,48 +491,49 @@ dump_flow_info (FILE *file) static const char * const reg_class_names[] = REG_CLASS_NAMES; fprintf (file, "%d registers.\n", max_regno); - for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++) - if (REG_N_REFS (i)) - { - enum reg_class class, altclass; - - fprintf (file, "\nRegister %d used %d times across %d insns", - i, REG_N_REFS (i), REG_LIVE_LENGTH (i)); - if (REG_BASIC_BLOCK (i) >= 0) - fprintf (file, " in block %d", REG_BASIC_BLOCK (i)); - if (REG_N_SETS (i)) - fprintf (file, "; set %d time%s", REG_N_SETS (i), - (REG_N_SETS (i) == 1) ? "" : "s"); - if (regno_reg_rtx[i] != NULL && REG_USERVAR_P (regno_reg_rtx[i])) - fprintf (file, "; user var"); - if (REG_N_DEATHS (i) != 1) - fprintf (file, "; dies in %d places", REG_N_DEATHS (i)); - if (REG_N_CALLS_CROSSED (i) == 1) - fprintf (file, "; crosses 1 call"); - else if (REG_N_CALLS_CROSSED (i)) - fprintf (file, "; crosses %d calls", REG_N_CALLS_CROSSED (i)); - if (regno_reg_rtx[i] != NULL - && PSEUDO_REGNO_BYTES (i) != UNITS_PER_WORD) - fprintf (file, "; %d bytes", PSEUDO_REGNO_BYTES (i)); - - class = reg_preferred_class (i); - altclass = reg_alternate_class (i); - if (class != GENERAL_REGS || altclass != ALL_REGS) - { - if (altclass == ALL_REGS || class == ALL_REGS) - fprintf (file, "; pref %s", reg_class_names[(int) class]); - else if (altclass == NO_REGS) - fprintf (file, "; %s or none", reg_class_names[(int) class]); - else - fprintf (file, "; pref %s, else %s", - reg_class_names[(int) class], - reg_class_names[(int) altclass]); - } + if (reg_n_info) + for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++) + if (REG_N_REFS (i)) + { + enum reg_class class, altclass; + + fprintf (file, "\nRegister %d used %d times across %d insns", + i, REG_N_REFS (i), REG_LIVE_LENGTH (i)); + if (REG_BASIC_BLOCK (i) >= 0) + fprintf (file, " in block %d", REG_BASIC_BLOCK (i)); + if (REG_N_SETS (i)) + fprintf (file, "; set %d time%s", REG_N_SETS (i), + (REG_N_SETS (i) == 1) ? "" : "s"); + if (regno_reg_rtx[i] != NULL && REG_USERVAR_P (regno_reg_rtx[i])) + fprintf (file, "; user var"); + if (REG_N_DEATHS (i) != 1) + fprintf (file, "; dies in %d places", REG_N_DEATHS (i)); + if (REG_N_CALLS_CROSSED (i) == 1) + fprintf (file, "; crosses 1 call"); + else if (REG_N_CALLS_CROSSED (i)) + fprintf (file, "; crosses %d calls", REG_N_CALLS_CROSSED (i)); + if (regno_reg_rtx[i] != NULL + && PSEUDO_REGNO_BYTES (i) != UNITS_PER_WORD) + fprintf (file, "; %d bytes", PSEUDO_REGNO_BYTES (i)); + + class = reg_preferred_class (i); + altclass = reg_alternate_class (i); + if (class != GENERAL_REGS || altclass != ALL_REGS) + { + if (altclass == ALL_REGS || class == ALL_REGS) + fprintf (file, "; pref %s", reg_class_names[(int) class]); + else if (altclass == NO_REGS) + fprintf (file, "; %s or none", reg_class_names[(int) class]); + else + fprintf (file, "; pref %s, else %s", + reg_class_names[(int) class], + reg_class_names[(int) altclass]); + } - if (regno_reg_rtx[i] != NULL && REG_POINTER (regno_reg_rtx[i])) - fprintf (file, "; pointer"); - fprintf (file, ".\n"); - } + if (regno_reg_rtx[i] != NULL && REG_POINTER (regno_reg_rtx[i])) + fprintf (file, "; pointer"); + fprintf (file, ".\n"); + } fprintf (file, "\n%d basic blocks, %d edges.\n", n_basic_blocks, n_edges); FOR_EACH_BB (bb) |