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local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions are shared.

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* local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions
        are shared.

From-SVN: r16147
This commit is contained in:
Jeffrey A Law 1997-10-22 15:58:33 +00:00 • committed by Jeff Law
parent b22b9b3ef2
commit 0bd83abd44
2 changed files with 6 additions and 8 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
Wed Oct 22 00:34:12 1997 Jeffrey A Law (law@cygnus.com)
* local-alloc.c (block_alloc): Don't lose if two SCRATCH expressions
are shared.
* rs6000.md (*movsi_got_internal_mem): New pattern.
(*movsi_got_internal_mem splitter): New define_split.

11
gcc/local-alloc.c
View file

@ -1714,17 +1714,12 @@ block_alloc (b)
{
if (GET_CODE (qty_scratch_rtx[q]) == REG)
abort ();
PUT_CODE (qty_scratch_rtx[q], REG);
REGNO (qty_scratch_rtx[q]) = qty_phys_reg[q];
qty_scratch_rtx[q] = gen_rtx (REG, GET_MODE (qty_scratch_rtx[q]),
qty_phys_reg[q]);
scratch_block[scratch_index] = b;
scratch_list[scratch_index++] = qty_scratch_rtx[q];
/* Must clear the USED field, because it will have been set by
copy_rtx_if_shared, but the leaf_register code expects that
it is zero in all REG rtx. copy_rtx_if_shared does not set the
used bit for REGs, but does for SCRATCHes. */
qty_scratch_rtx[q]->used = 0;
}
}
}