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* tree-eh.c: Revert yesterday's change. 

From-SVN: r91643
This commit is contained in:
Jeff Law 2004-12-02 08:56:29 -07:00 committed by Jeff Law
parent 45fd5209ae
commit b28fb6a10c
2 changed files with 8 additions and 27 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2004-12-02 Jeff Law <law@redhat.com>
* tree-eh.c: Revert yesterday's change.
2004-12-02 Andrew Pinski <pinskia@physics.uc.edu> 2004-12-02 Andrew Pinski <pinskia@physics.uc.edu>
* varasm.c (decode_reg_name): Revert change to check for zero * varasm.c (decode_reg_name): Revert change to check for zero

31
gcc/tree-eh.c
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@ -37,21 +37,6 @@ Boston, MA 02111-1307, USA. */
#include "langhooks.h" #include "langhooks.h"
#include "ggc.h" #include "ggc.h"
/* In some circumstances we have to save EH data around a nested
exception. The EXC_PTR_EXPR and FILTER_EXPR values are saved
into these _DECL nodes.
We lazily create this pair of _DECL nodes once per function rather
than creating a new pair of _DECLs each time we need to save the
EXEC_PTR and FILTER. This can save us literally thousands of _DECL
nodes when we have many inline destructors with an embedded try block.
This is safe as we know the lifetime of the values in these _DECL nodes.
Their lifetimes also ensure that globbing these uses into a single
pair of _DECL nodes requires no additional PHI_NODEs or SSA_NAMEs when
compared to having a pair of _DECL nodes per inline destructor with
an embedded try block. */
static tree save_eptr, save_filt;
/* Nonzero if we are using EH to handle cleanups. */ /* Nonzero if we are using EH to handle cleanups. */
static int using_eh_for_cleanups_p = 0; static int using_eh_for_cleanups_p = 0;
@ -822,13 +807,10 @@ honor_protect_cleanup_actions (struct leh_state *outer_state,
we never fallthru from this copy of the finally block. */ we never fallthru from this copy of the finally block. */
if (finally_may_fallthru) if (finally_may_fallthru)
{ {
/* If we have not created _DECLs for saving the EXC_PTR tree save_eptr, save_filt;
and FILTER_EXPR, create them now. */
if (!save_eptr) save_eptr = create_tmp_var (ptr_type_node, "save_eptr");
{ save_filt = create_tmp_var (integer_type_node, "save_filt");
save_eptr = create_tmp_var (ptr_type_node, "save_eptr");
save_filt = create_tmp_var (integer_type_node, "save_filt");
}
i = tsi_start (finally); i = tsi_start (finally);
x = build (EXC_PTR_EXPR, ptr_type_node); x = build (EXC_PTR_EXPR, ptr_type_node);
@ -1662,11 +1644,6 @@ lower_eh_constructs (void)
htab_delete (finally_tree); htab_delete (finally_tree);
collect_eh_region_array (); collect_eh_region_array ();
/* Wipe the DECLs we use for saving the EXC_PTR and FILTER_EXPR
to ensure we create new ones for the next function. */
save_eptr = NULL;
save_filt = NULL;
} }
struct tree_opt_pass pass_lower_eh = struct tree_opt_pass pass_lower_eh =