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re PR target/21721 (fails to assemble, Use of p0 is not valid in this context)

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PR target/21721
        * config/ia64/ia64.c (emit_predicate_relation_info): Skip p0.

From-SVN: r100745
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Richard Henderson 2005-06-08 00:26:58 -07:00 • committed by Richard Henderson
parent 34cbdf6704
commit 9f3b845245
2 changed files with 8 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-06-08 Richard Henderson <rth@redhat.com>
PR target/21721
* config/ia64/ia64.c (emit_predicate_relation_info): Skip p0.
2005-06-08 Eric Botcazou <ebotcazou@libertysurf.fr>
PR target/21889

4
gcc/config/ia64/ia64.c
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@ -7420,7 +7420,9 @@ emit_predicate_relation_info (void)
&& NOTE_LINE_NUMBER (NEXT_INSN (head)) == NOTE_INSN_BASIC_BLOCK)
head = NEXT_INSN (head);
for (r = PR_REG (0); r < PR_REG (64); r += 2)
/* Skip p0, which may be thought to be live due to (reg:DI p0)
grabbing the entire block of predicate registers. */
for (r = PR_REG (2); r < PR_REG (64); r += 2)
if (REGNO_REG_SET_P (bb->global_live_at_start, r))
{
rtx p = gen_rtx_REG (BImode, r);