diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index ca69870..f1df78a 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2150,12 +2150,15 @@ try_combine (i3, i2, i1, new_direct_jump_p) /* If the split with the mode-changed register didn't work, try the original register. */ if (! m_split && ni2dest != i2dest) - m_split = split_insns (gen_rtx_PARALLEL - (VOIDmode, - gen_rtvec (2, newpat, - gen_rtx_CLOBBER (VOIDmode, - i2dest))), - i3); + { + ni2dest = i2dest; + m_split = split_insns (gen_rtx_PARALLEL + (VOIDmode, + gen_rtvec (2, newpat, + gen_rtx_CLOBBER (VOIDmode, + i2dest))), + i3); + } } if (m_split && GET_CODE (m_split) != SEQUENCE) @@ -9922,22 +9925,6 @@ gen_rtx_combine VPARAMS ((enum rtx_code code, enum machine_mode mode, ...)) va_end (p); - /* See if this is in undobuf. Be sure we don't use objects that came - from another insn; this could produce circular rtl structures. */ - - for (undo = undobuf.undos; undo != undobuf.previous_undos; undo = undo->next) - if (!undo->is_int - && GET_CODE (undo->old_contents.r) == code - && GET_MODE (undo->old_contents.r) == mode) - { - for (j = 0; j < n_args; j++) - if (XEXP (undo->old_contents.r, j) != args[j]) - break; - - if (j == n_args) - return undo->old_contents.r; - } - /* Otherwise make a new rtx. We know we have 1, 2, or 3 args. Use rtx_alloc instead of gen_rtx because it's faster on RISC. */ rt = rtx_alloc (code); |