OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

(copy_loop_body): When update split DEST_ADDR giv,

Browse Source 
check to make sure it was split.
(find_splittable_givs): Fix reversed test of verify_addresses result.

From-SVN: r12034
This commit is contained in:
Jim Wilson 1996-05-18 17:16:38 -07:00
parent bb431b7a6c
commit 7085bad383
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
gcc/unroll.c
View File

@ -1606,10 +1606,15 @@ copy_loop_body (copy_start, copy_end, map, exit_label, last_iteration,
for (tv = bl->giv; tv; tv = tv->next_iv)
if (tv->giv_type == DEST_ADDR && tv->same == v)
{
int this_giv_inc = INTVAL (giv_inc);
int this_giv_inc;
/* If this DEST_ADDR giv was not split, then ignore it. */
if (*tv->location != tv->dest_reg)
continue;
/* Scale this_giv_inc if the multiplicative factors of
the two givs are different. */
this_giv_inc = INTVAL (giv_inc);
if (tv->mult_val != v->mult_val)
this_giv_inc = (this_giv_inc / INTVAL (v->mult_val)
* INTVAL (tv->mult_val));
@ -2780,7 +2785,7 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment,
Try to validate both the first and the last
address resulting from loop unrolling, if
one fails, then can't do const elim here. */
if (! verify_addresses (v, giv_inc, unroll_number))
if (verify_addresses (v, giv_inc, unroll_number))
{
/* Save the negative of the eliminated const, so
that we can calculate the dest_reg's increment