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unroll.c (find_splittable_givs): After express_from, call replace_rtx to convert dest_reg to new_reg.

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* unroll.c (find_splittable_givs): After express_from, call replace_rtx
        to convert dest_reg to new_reg.

From-SVN: r25056
This commit is contained in:
Jim Wilson 1999-02-06 10:08:51 +00:00 committed by Jeff Law
parent 54ca6ffa13
commit 8318490b1e
2 changed files with 10 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Feb 6 11:04:08 1999 Jim Wilson <wilson@cygnus.com>
* unroll.c (find_splittable_givs): After express_from, call replace_rtx
to convert dest_reg to new_reg.
Sat Feb 6 10:31:35 1999 Jeffrey A Law (law@cygnus.com)
* reload1.c (reload_combine_note_store): Be more careful with

6
gcc/unroll.c
View File

@ -2900,7 +2900,7 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment,
copy_loop_body works around the problem for the
DEST_REG givs themselves, but it can't handle
DEST_ADDR givs that have been combined with
derived a derived DEST_REG giv.
a derived DEST_REG giv.
So Handle V as if the giv from which V->SAME has
been derived has been combined with V.
recombine_givs only derives givs from givs that
@ -2909,6 +2909,8 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment,
same = same->derived_from;
new_reg = express_from (same, v);
new_reg = replace_rtx (new_reg, same->dest_reg,
same->new_reg);
}
/* If the address giv has a constant in its new_reg value,
@ -3025,6 +3027,8 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment,
v->same = v->same->derived_from;
v->new_reg = express_from (v->same, v);
v->new_reg = replace_rtx (v->new_reg, v->same->dest_reg,
v->same->new_reg);
}
}