diff options
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -1305,6 +1305,7 @@ want_to_gcse_p (x) case CONST_DOUBLE: case CONST_VECTOR: case CALL: + case CONSTANT_P_RTX: return 0; default: @@ -2216,7 +2217,8 @@ hash_scan_set (pat, insn, table) && REGNO (src) >= FIRST_PSEUDO_REGISTER && can_copy_p [GET_MODE (dest)] && REGNO (src) != regno) - || CONSTANT_P (src)) + || (CONSTANT_P (src) + && GET_CODE (src) != CONSTANT_P_RTX)) /* A copy is not available if its src or dest is subsequently modified. Here we want to search from INSN+1 on, but oprs_available_p searches from INSN on. */ @@ -4277,7 +4279,8 @@ do_local_cprop (x, insn, alter_jumps, libcall_sp) if (l->in_libcall) continue; - if (CONSTANT_P (this_rtx)) + if (CONSTANT_P (this_rtx) + && GET_CODE (this_rtx) != CONSTANT_P_RTX) newcnst = this_rtx; if (REG_P (this_rtx) && REGNO (this_rtx) >= FIRST_PSEUDO_REGISTER /* Don't copy propagate if it has attached REG_EQUIV note. |