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arm.c: Include "ggc.h". 

* arm.c: Include "ggc.h".
(arm_add_gc_roots): New function.
(arm_override_options): Call it.
(aof_pic_entry): Add a GC root for aof_pic_label when it's allocated.

* arm.md (define_asm_attributes): Add a pool_range attribute.

From-SVN: r29235
This commit is contained in:
Richard Earnshaw 1999-09-09 14:30:54 +00:00 committed by Richard Earnshaw
parent 6e9d618910
commit 92a432f4dd
3 changed files with 32 additions and 1 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
Thu Sep 9 15:24:59 BST 1999 Richard Earnshaw <rearnsha@arm.com>
* arm.c: Include "ggc.h".
(arm_add_gc_roots): New function.
(arm_override_options): Call it.
(aof_pic_entry): Add a GC root for aof_pic_label when it's allocated.
* arm.md (define_asm_attributes): Add a pool_range attribute.
Thu Sep 9 12:32:57 BST 1999 Nathan Sidwell <nathan@acm.org>
* extend.texi (Volatiles): New node.

19
gcc/config/arm/arm.c
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@ -39,6 +39,7 @@ Boston, MA 02111-1307, USA. */
#include "expr.h"
#include "toplev.h"
#include "recog.h"
#include "ggc.h"
/* The maximum number of insns skipped which will be conditionalised if
possible. */
@ -72,6 +73,7 @@ static void emit_multi_reg_push PROTO ((int));
static void emit_sfm PROTO ((int, int));
static enum arm_cond_code get_arm_condition_code PROTO ((rtx));
static int const_ok_for_op RTX_CODE_PROTO ((HOST_WIDE_INT, Rcode));
static void arm_add_gc_roots PROTO ((void));
/* True if we are currently building a constant table. */
int making_const_table;
@ -585,7 +587,20 @@ arm_override_options ()
max_insns_skipped = 6;
else if (arm_is_strong)
max_insns_skipped = 3;
/* Register global variables with the garbage collector. */
arm_add_gc_roots ();
}
static void
arm_add_gc_roots ()
{
ggc_add_rtx_root (&arm_compare_op0, 1);
ggc_add_rtx_root (&arm_compare_op1, 1);
ggc_add_rtx_root (&arm_target_insn, 1); /* Not sure this is really a root */
/* XXX: What about the minipool tables? */
}
/* Return 1 if it is possible to return using a single instruction */
@ -6725,6 +6740,10 @@ aof_pic_entry (x)
if (aof_pic_label == NULL_RTX)
{
/* We mark this here and not in arm_add_gc_roots() to avoid
polluting even more code with ifdefs, and because it never
contains anything useful until we assign to it here. */
ggc_add_rtx_root (&aof_pic_label, 1);
/* This needs to persist throughout the compilation. */
end_temporary_allocation ();
aof_pic_label = gen_rtx_SYMBOL_REF (Pmode, "x$adcons");

5
gcc/config/arm/arm.md
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@ -62,9 +62,12 @@
(define_attr "pool_range" "" (const_int 0))
; An assembler sequence may clobber the condition codes without us knowing
; If such an insn references the pool, then we have no way of knowing how,
; so use the most conservative value for pool_range.
(define_asm_attributes
[(set_attr "conds" "clob")
(set_attr "length" "4")])
(set_attr "length" "4")
(set_attr "pool_range" "250")])
; TYPE attribute is used to detect floating point instructions which, if
; running on a co-processor can run in parallel with other, basic instructions