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combine.c (try_combine): Update reg_nonzero_bits of newi2pat before newpat.

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* combine.c (try_combine): Update reg_nonzero_bits of
        newi2pat before newpat.

From-SVN: r33376
This commit is contained in:
Hiroyuki Machida 2000-04-24 17:46:15 +09:00 • committed by Jeff Law
parent ce7de04c2b
commit 5fb7c24702
2 changed files with 8 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-04-24 Hiroyuki Machida <machida@sm.sony.co.jp>
* combine.c (try_combine): Update reg_nonzero_bits of
newi2pat before newpat.
Mon Apr 24 10:19:48 MET DST 2000 Jan Hubicka <jh@suse.cz>
* loop.c (strength_reduce): Simplify test to INSN_P.

6
gcc/combine.c
View file

@ -2714,11 +2714,11 @@ try_combine (i3, i2, i1, new_direct_jump_p)
}
/* Update reg_nonzero_bits et al for any changes that may have been made
to this insn. */
note_stores (newpat, set_nonzero_bits_and_sign_copies, NULL);
to this insn. The order of set_nonzero_bits_and_sign_copies() is
important. Because newi2pat can affect nonzero_bits of newpat */
if (newi2pat)
note_stores (newi2pat, set_nonzero_bits_and_sign_copies, NULL);
note_stores (newpat, set_nonzero_bits_and_sign_copies, NULL);
/* Set new_direct_jump_p if a new return or simple jump instruction
has been created.