diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000-p8swap.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000-p8swap.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000-p8swap.c b/gcc/config/rs6000/rs6000-p8swap.c index 071bc0c187d..c73120d4e55 100644 --- a/gcc/config/rs6000/rs6000-p8swap.c +++ b/gcc/config/rs6000/rs6000-p8swap.c @@ -792,6 +792,11 @@ rtx_is_swappable_p (rtx op, unsigned int *special) case UNSPEC_REDUC_PLUS: case UNSPEC_REDUC: return 1; + case UNSPEC_VPMSUM: + /* vpmsumd is not swappable, but vpmsum[bhw] are. */ + if (GET_MODE (op) == V2DImode) + return 0; + break; } } @@ -2317,7 +2322,14 @@ rs6000_analyze_swaps (function *fun) /* Pre-pass to recombine lvx and stvx patterns so we don't lose info. */ recombine_lvx_stvx_patterns (fun); + + /* Rebuild ud- and du-chains. */ + df_remove_problem (df_chain); df_process_deferred_rescans (); + df_set_flags (DF_RD_PRUNE_DEAD_DEFS); + df_chain_add_problem (DF_DU_CHAIN | DF_UD_CHAIN); + df_analyze (); + df_set_flags (DF_DEFER_INSN_RESCAN); /* Allocate structure to represent webs of insns. */ insn_entry = XCNEWVEC (swap_web_entry, get_max_uid ()); |