diff options
Diffstat (limited to 'gcc/regstat.c')
| -rw-r--r-- | gcc/regstat.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/gcc/regstat.c b/gcc/regstat.c index 9f8e41f35af..7b7790f807f 100644 --- a/gcc/regstat.c +++ b/gcc/regstat.c @@ -62,11 +62,27 @@ regstat_init_n_sets_and_refs (void) regstat_n_sets_and_refs = xmalloc (max_regno * sizeof (struct regstat_n_sets_and_refs_t)); - for (i = 0; i < max_regno; i++) - { - SET_REG_N_SETS (i, DF_REG_DEF_COUNT (i)); - SET_REG_N_REFS (i, DF_REG_USE_COUNT (i) + REG_N_SETS (i)); - } + if (MAY_HAVE_DEBUG_INSNS) + for (i = 0; i < max_regno; i++) + { + int use_count; + struct df_ref *use; + + use_count = DF_REG_USE_COUNT (i); + for (use = DF_REG_USE_CHAIN (i); use; use = DF_REF_NEXT_REG (use)) + if (DF_REF_INSN (use) && DEBUG_INSN_P (DF_REF_INSN (use))) + use_count--; + + + SET_REG_N_SETS (i, DF_REG_DEF_COUNT (i)); + SET_REG_N_REFS (i, use_count + REG_N_SETS (i)); + } + else + for (i = 0; i < max_regno; i++) + { + SET_REG_N_SETS (i, DF_REG_DEF_COUNT (i)); + SET_REG_N_REFS (i, DF_REG_USE_COUNT (i) + REG_N_SETS (i)); + } timevar_pop (TV_REG_STATS); } @@ -150,7 +166,7 @@ regstat_bb_compute_ri (unsigned int bb_index, struct df_mw_hardreg **mws_rec; rtx link; - if (!INSN_P (insn)) + if (!INSN_P (insn) || DEBUG_INSN_P (insn)) continue; /* Increment the live_length for all of the registers that |