diff options
Diffstat (limited to 'gcc-4.9/gcc/lra-constraints.c')
| -rw-r--r-- | gcc-4.9/gcc/lra-constraints.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/lra-constraints.c b/gcc-4.9/gcc/lra-constraints.c index ec28b7ff8..f967d71da 100644 --- a/gcc-4.9/gcc/lra-constraints.c +++ b/gcc-4.9/gcc/lra-constraints.c @@ -5851,6 +5851,20 @@ remove_inheritance_pseudos (bitmap remove_pseudos) SUBREG_REG (SET_SRC (set)) = SET_SRC (prev_set); else SET_SRC (set) = SET_SRC (prev_set); + /* As we are finishing with processing the insn + here, check the destination too as it might + inheritance pseudo for another pseudo. */ + if (bitmap_bit_p (remove_pseudos, dregno) + && bitmap_bit_p (&lra_inheritance_pseudos, dregno) + && (restore_regno + = lra_reg_info[dregno].restore_regno) >= 0) + { + if (GET_CODE (SET_DEST (set)) == SUBREG) + SUBREG_REG (SET_DEST (set)) + = regno_reg_rtx[restore_regno]; + else + SET_DEST (set) = regno_reg_rtx[restore_regno]; + } lra_push_insn_and_update_insn_regno_info (curr_insn); lra_set_used_insn_alternative_by_uid (INSN_UID (curr_insn), -1); |