combine.c (combinable_i3pat): Don't forbid occurrences of i2dest or i1dest in inner_dest if inner_dest is a mem.
* combine.c (combinable_i3pat): Don't forbid occurrences of i2dest or i1dest in inner_dest if inner_dest is a mem. From-SVN: r69566
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@ -1,3 +1,8 @@
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Fri Jul 18 15:22:28 2003 Alexandre Oliva <aoliva@redhat.com>
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* combine.c (combinable_i3pat): Don't forbid occurrences of
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i2dest or i1dest in inner_dest if inner_dest is a mem.
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Fri Jul 18 17:05:57 CEST 2003 Jan Hubicka <jh@suse.cz>
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* cgraph.c (cgraph_remove_node): Clear the hash table slot.
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@ -1301,9 +1301,14 @@ combinable_i3pat (rtx i3, rtx *loc, rtx i2dest, rtx i1dest,
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|| GET_CODE (inner_dest) == ZERO_EXTRACT)
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inner_dest = XEXP (inner_dest, 0);
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/* Check for the case where I3 modifies its output, as
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discussed above. */
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if ((inner_dest != dest
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/* Check for the case where I3 modifies its output, as discussed
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above. We don't want to prevent pseudos from being combined
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into the address of a MEM, so only prevent the combination if
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i1 or i2 set the same MEM. */
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if ((inner_dest != dest &&
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(GET_CODE (inner_dest) != MEM
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|| rtx_equal_p (i2dest, inner_dest)
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|| (i1dest && rtx_equal_p (i1dest, inner_dest)))
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&& (reg_overlap_mentioned_p (i2dest, inner_dest)
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|| (i1dest && reg_overlap_mentioned_p (i1dest, inner_dest))))
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