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Fix glibc -O2 iso646.i abort.

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* config/ia64/ia64.c (rws_access_reg): New local write_count.  If
	is_predicate_reg, then take max write_count of register pair.

From-SVN: r34915
This commit is contained in:
Jim Wilson 2000-07-07 23:43:28 +00:00 committed by Jim Wilson
parent c4561450e1
commit 12c2c7aa82
2 changed files with 13 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-07-07 Jim Wilson <wilson@cygnus.com>
* config/ia64/ia64.c (rws_access_reg): New local write_count. If
is_predicate_reg, then take max write_count of register pair.
2000-07-07 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* tradcpp.c (main): Rename label `include' to `add_include' to

9
gcc/config/ia64/ia64.c
View File

@ -2313,6 +2313,8 @@ rws_access_reg (regno, flags, pred)
if (flags.is_write)
{
int write_count;
/* One insn writes same reg multiple times? */
if (rws_insn[regno].write_count > 0)
abort ();
@ -2328,7 +2330,12 @@ rws_access_reg (regno, flags, pred)
if (is_predicate_reg)
rws_update (rws_insn, regno + 1, flags, pred);
switch (rws_sum[regno].write_count)
/* ??? Likewise. */
write_count = rws_sum[regno].write_count;
if (is_predicate_reg)
write_count = MAX (write_count, rws_sum[regno + 1].write_count);
switch (write_count)
{
case 0:
/* The register has not been written yet. */