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arm.c (find_barrier): Revert change of Apr 23. 

* arm.c (find_barrier): Revert change of Apr 23.  Handle table
jumps as a single entity, taking into account the size of the
table.

From-SVN: r22558
This commit is contained in:
Richard Earnshaw 1998-09-23 10:49:06 +00:00 committed by Richard Earnshaw
parent 4be70bc708
commit 7551cbc77e
2 changed files with 27 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
* arm.c (find_barrier): Revert change of Apr 23. Handle table
jumps as a single entity, taking into account the size of the
table.
Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
* tree.def (SWITCH_EXPR): New tree node definition.

22
gcc/config/arm/arm.c
View File

@ -3592,8 +3592,10 @@ find_barrier (from, max_count)
while (from && count < max_count)
{
rtx tmp;
if (GET_CODE (from) == BARRIER)
return from;
found_barrier = from;
/* Count the length of this insn */
if (GET_CODE (from) == INSN
@ -3601,6 +3603,24 @@ find_barrier (from, max_count)
&& CONSTANT_P (SET_SRC (PATTERN (from)))
&& CONSTANT_POOL_ADDRESS_P (SET_SRC (PATTERN (from))))
count += 8;
/* Handle table jumps as a single entity. */
else if (GET_CODE (from) == JUMP_INSN
&& JUMP_LABEL (from) != 0
&& ((tmp = next_real_insn (JUMP_LABEL (from)))
== next_real_insn (from))
&& tmp != NULL
&& GET_CODE (tmp) == JUMP_INSN
&& (GET_CODE (PATTERN (tmp)) == ADDR_VEC
|| GET_CODE (PATTERN (tmp)) == ADDR_DIFF_VEC))
{
int elt = GET_CODE (PATTERN (tmp)) == ADDR_DIFF_VEC ? 1 : 0;
count += (get_attr_length (from)
+ GET_MODE_SIZE (SImode) * XVECLEN (PATTERN (tmp), elt));
/* Continue after the dispatch table. */
last = from;
from = NEXT_INSN (tmp);
continue;
}
else
count += get_attr_length (from);