[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481
--- Comment #8 from Richard Guenther rguenth at gcc dot gnu.org 2011-12-13
11:24:44 UTC ---
The following is a real fix I'm going to test.
@@ -1601,6 +1605,7 @@ replace_uses_by (tree name, tree val)
if (gimple_code (stmt) != GIMPLE_PHI)
{
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
+ gimple orig_stmt = stmt;
size_t i;
fold_stmt (gsi);
@@ -1619,7 +1624,7 @@ replace_uses_by (tree name, tree val)
recompute_tree_invariant_for_addr_expr (op);
}
- maybe_clean_or_replace_eh_stmt (stmt, stmt);
+ maybe_clean_or_replace_eh_stmt (orig_stmt, stmt);
update_stmt (stmt);
}
}
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 --- Comment #9 from Richard Guenther rguenth at gcc dot gnu.org 2011-12-13 12:56:13 UTC --- Author: rguenth Date: Tue Dec 13 12:56:09 2011 New Revision: 182280 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=182280 Log: 2011-12-13 Richard Guenther rguent...@suse.de PR middle-end/51481 * tree-cfg.c (replace_uses_by): Pass proper arguments to maybe_clean_or_replace_eh_stmt. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-cfg.c
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 --- Comment #10 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-13 14:01:04 UTC --- Author: jakub Date: Tue Dec 13 14:00:58 2011 New Revision: 182284 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=182284 Log: Revert 2011-12-12 Jakub Jelinek ja...@redhat.com PR tree-optimization/51481 * gimple-fold.c (gimple_fold_call): Call maybe_clean_or_replace_eh_stmt. Avoid optimization if stmt has EH edges, but gimple_fold_builtin result can't throw. Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-fold.c
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-12 09:22:06 UTC --- Started with http://gcc.gnu.org/viewcvs?root=gccview=revrev=181172
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | --- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-12 10:24:49 UTC --- Created attachment 26053 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=26053 gcc47-pr51481.patch maybe_cleanup_or_replace_eh_stmt wasn't called, the patch fixes that. Unfortunately, as it is deep inside of fold_stmt called from deep from various passes, including cfg cleanup, I'm afraid handling eh edge dropping as opposed to just replacing would be hard. Let's just hope possibly throwing builtins aren't optimized away.
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Attachment #26053|0 |1 is obsolete|| --- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-12 10:48:22 UTC --- Created attachment 26054 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=26054 gcc47-pr51481.patch Updated patch that won't fold if gimple_purge_dead_eh_edges would be needed.
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-12 20:59:31 UTC --- Author: jakub Date: Mon Dec 12 20:59:28 2011 New Revision: 182264 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=182264 Log: PR tree-optimization/51481 * gimple-fold.c (gimple_fold_call): Call maybe_clean_or_replace_eh_stmt. Avoid optimization if stmt has EH edges, but gimple_fold_builtin result can't throw. * gcc.dg/pr51481.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr51481.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-fold.c trunk/gcc/testsuite/ChangeLog
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED --- Comment #7 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-12 21:02:38 UTC --- Fixed.
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2011-12-09 Component|c |tree-optimization Known to work||4.6.2 Target Milestone|--- |4.7.0 Summary|ice: dead STMT in EH table |[4.7 Regression] ice: dead ||STMT in EH table Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther rguenth at gcc dot gnu.org 2011-12-09 08:54:30 UTC --- Catched at IPA inline transform time. Confirmed, regression from 4.6, reducing.
[Bug tree-optimization/51481] [4.7 Regression] ice: dead STMT in EH table
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51481
Richard Guenther rguenth at gcc dot gnu.org changed:
What|Removed |Added
CC||jamborm at gcc dot gnu.org
--- Comment #2 from Richard Guenther rguenth at gcc dot gnu.org 2011-12-09
09:01:29 UTC ---
The following fails with -O -fexceptions -fipa-cp -fipa-cp-clone:
typedef __builtin_va_list __gnuc_va_list;
typedef __gnuc_va_list va_list;
extern struct _IO_FILE *stderr;
extern __const unsigned short int **__ctype_b_loc (void)
__attribute__ ((__nothrow__)) __attribute__ ((__const));
struct abcsym {
unsigned short colnum;
int linenum;
};
struct SYMBOL {
struct abcsym as;
};
typedef struct SYMBOL *INFO[26];
extern INFO info;
void error(int sev, struct SYMBOL *s, char *fmt, ...);
void bug(char *msg, int fatal)
{
error(1, 0, Internal error: %s., msg);
}
void error(int sev, struct SYMBOL *s, char *fmt, ...)
{
va_list args;
static struct SYMBOL *t;
if (t != info['T' - 'A'])
{
char *p;
t = info['T' - 'A'];
while ((*__ctype_b_loc ())[(int) (((unsigned char) *p))])
p++;
}
__builtin_fprintf(stderr, sev == 0 ? Warning : Error );
if (s != 0)
__builtin_fprintf(stderr, in line %d.%d, s-as.linenum, s-as.colnum);
__builtin_va_end(args);
}
