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Fix that save expression lookaside always clears cached variable values.

This commit is contained in:
steve 2007-04-01 05:26:17 +00:00
parent 8856c07d88
commit ea74940be4
1 changed files with 11 additions and 6 deletions
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17
tgt-vvp/vector.c
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#ifdef HAVE_CVS_IDENT #ifdef HAVE_CVS_IDENT
#ident "$Id: vector.c,v 1.14 2007/03/22 16:08:18 steve Exp $" #ident "$Id: vector.c,v 1.15 2007/04/01 05:26:17 steve Exp $"
#endif #endif
# include "vvp_priv.h" # include "vvp_priv.h"
@ -167,17 +167,19 @@ void save_expression_lookaside(unsigned addr, ivl_expr_t exp, unsigned wid)
assert(addr >= 8); assert(addr >= 8);
assert((addr+wid) <= MAX_VEC); assert((addr+wid) <= MAX_VEC);
/* Only certain types of expressions are savable. */
if ( ! test_expression_savable(exp))
return;
/* When saving an expression to the lookaside, also clear the /* When saving an expression to the lookaside, also clear the
signal saved in the lookaside for these bits. The reason is signal saved in the lookaside for these bits. The reason is
that an expression calculation will replace any signal that an expression calculation will replace any signal
bits. */ bits. */
for (idx = 0 ; idx < wid ; idx += 1)
set_sig(addr+idx, 0, 0, 0);
/* Only certain types of expressions are savable. */
if ( ! test_expression_savable(exp))
return;
for (idx = 0 ; idx < wid ; idx += 1) { for (idx = 0 ; idx < wid ; idx += 1) {
set_exp(addr+idx, exp, idx); set_exp(addr+idx, exp, idx);
set_sig(addr+idx, 0, 0, 0);
} }
if ((addr+wid) > lookaside_top) if ((addr+wid) > lookaside_top)
@ -372,6 +374,9 @@ unsigned allocate_vector_exp(ivl_expr_t exp, unsigned wid,
/* /*
* $Log: vector.c,v $ * $Log: vector.c,v $
* Revision 1.15 2007/04/01 05:26:17 steve
* Fix that save expression lookaside always clears cached variable values.
*
* Revision 1.14 2007/03/22 16:08:18 steve * Revision 1.14 2007/03/22 16:08:18 steve
* Spelling fixes from Larry * Spelling fixes from Larry
* *