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Lines 762-767
do_SUBST_MODE (rtx *into, enum machine_m
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| 762 |
} |
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} |
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#define SUBST_MODE(INTO, NEWVAL) do_SUBST_MODE(&(INTO), (NEWVAL)) |
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#define SUBST_MODE(INTO, NEWVAL) do_SUBST_MODE(&(INTO), (NEWVAL)) |
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/* Similar to SUBST, but NEWVAL is a LOG_LINKS expression. */ |
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static void |
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do_SUBST_LINK (rtx *into, rtx newval) |
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{ |
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struct undo *buf; |
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rtx oldval = *into; |
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if (oldval == newval) |
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return; |
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if (undobuf.frees) |
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buf = undobuf.frees, undobuf.frees = buf->next; |
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else |
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buf = XNEW (struct undo); |
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buf->kind = UNDO_RTX; |
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buf->where.r = into; |
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buf->old_contents.r = oldval; |
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*into = newval; |
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buf->next = undobuf.undos, undobuf.undos = buf; |
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} |
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#define SUBST_LINK(oldval, newval) do_SUBST_LINK (&oldval, newval) |
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/* Subroutine of try_combine. Determine whether the combine replacement |
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/* Subroutine of try_combine. Determine whether the combine replacement |
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patterns NEWPAT, NEWI2PAT and NEWOTHERPAT are cheaper according to |
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patterns NEWPAT, NEWI2PAT and NEWOTHERPAT are cheaper according to |
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Lines 2867-2872
try_combine (rtx i3, rtx i2, rtx i1, rtx
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SUBST (PATTERN (i2), XVECEXP (PATTERN (i2), 0, 0)); |
2894 |
SUBST (PATTERN (i2), XVECEXP (PATTERN (i2), 0, 0)); |
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SUBST (XEXP (SET_SRC (PATTERN (i2)), 0), |
2895 |
SUBST (XEXP (SET_SRC (PATTERN (i2)), 0), |
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SET_DEST (PATTERN (i1))); |
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SET_DEST (PATTERN (i1))); |
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SUBST_LINK (LOG_LINKS (i2), alloc_INSN_LIST (i1, LOG_LINKS (i2))); |
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} |
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} |
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} |
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} |
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#endif |
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#endif |