[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345 --- Comment #8 from Marek Polacek mpolacek at gcc dot gnu.org --- Author: mpolacek Date: Tue Jun 2 09:17:49 2015 New Revision: 224017 URL: https://gcc.gnu.org/viewcvs?rev=224017root=gccview=rev Log: PR middle-end/66345 * gimple-fold.c (gimple_fold_builtin_snprintf): Return false if get_maxval_strlen does not produce an INTEGER_CST. * gcc.dg/torture/pr66345.c: New test. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr66345.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/gimple-fold.c branches/gcc-5-branch/gcc/testsuite/ChangeLog
[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345 --- Comment #7 from Marek Polacek mpolacek at gcc dot gnu.org --- Author: mpolacek Date: Tue Jun 2 09:13:29 2015 New Revision: 224016 URL: https://gcc.gnu.org/viewcvs?rev=224016root=gccview=rev Log: PR middle-end/66345 * gimple-fold.c (gimple_fold_builtin_snprintf): Return false if get_maxval_strlen does not produce an INTEGER_CST. * gcc.dg/torture/pr66345.c: New test. Added: trunk/gcc/testsuite/gcc.dg/torture/pr66345.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-fold.c trunk/gcc/testsuite/ChangeLog
[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #9 from Marek Polacek mpolacek at gcc dot gnu.org --- Fixed.
[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED CC||mpolacek at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org --- Comment #6 from Marek Polacek mpolacek at gcc dot gnu.org --- Testing a fix.
[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345
Markus Trippelsdorf trippels at gcc dot gnu.org changed:
What|Removed |Added
Status|WAITING |NEW
Component|c |middle-end
Known to work||4.8.4, 4.9.2
Summary|internal compiler error:|[5/6 Regression] internal
|Segmentation fault -- |compiler error:
|raidctl.c 'do_meter'|Segmentation fault
Known to fail||5.0, 6.0
--- Comment #4 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
markus@x4 tmp % cat raidctl.i
extern int snprintf(char *, unsigned long, const char *, ...);
const char a[] = ;
int b;
void
get_bar () { snprintf (0, 0, %s, a[b]); }
markus@x4 tmp % gcc -c -O2 raidctl.i
raidctl.i: In function ‘get_bar’:
raidctl.i:5:1: internal compiler error: tree check: expected integer_cst, have
negate_expr in decompose, at tree.h:4929
get_bar () { snprintf (0, 0, %s, a[b]); }
^
0xd3447c tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9352
0x58db55 tree_check(tree_node const*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3113
0x58db55 wi::int_traitstree_node const*::decompose(long*, unsigned int,
tree_node const*)
../../gcc/gcc/tree.h:4929
0xd39d2a wi::int_traitstree_node const*::decompose(long*, unsigned int,
tree_node const*)
../../gcc/gcc/tree.h:3060
0xd39d2a wide_int_ref_storagefalse::wide_int_ref_storagetree_node
const*(tree_node const* const, unsigned int)
../../gcc/gcc/wide-int.h:957
0xd39d2a generic_wide_intwide_int_ref_storagefalse
::generic_wide_inttree_node const*(tree_node const* const, unsigned int)
../../gcc/gcc/wide-int.h:733
0xd39d2a bool wi::eq_ptree_node const*, int(tree_node const* const, int
const)
../../gcc/gcc/wide-int.h:1715
0xd39d2a tree_int_cst_sgn(tree_node const*)
../../gcc/gcc/tree.c:7239
0xd3a95e compare_tree_int(tree_node const*, unsigned long)
../../gcc/gcc/tree.c:7448
0x85e27c gimple_fold_builtin_snprintf
../../gcc/gcc/gimple-fold.c:2543
0x85e27c gimple_fold_builtin
../../gcc/gcc/gimple-fold.c:2954
0x8604b0 gimple_fold_call
../../gcc/gcc/gimple-fold.c:3182
0x8604b0 fold_stmt_1
../../gcc/gcc/gimple-fold.c:3677
0xbf86b7 execute
../../gcc/gcc/tree-ssa-forwprop.c:2350
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See http://gcc.gnu.org/bugs.html for instructions.
[Bug middle-end/66345] [5/6 Regression] internal compiler error: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66345 H.J. Lu hjl.tools at gmail dot com changed: What|Removed |Added CC||rguenther at suse dot de Target Milestone|--- |5.2 --- Comment #5 from H.J. Lu hjl.tools at gmail dot com --- It was caused by r214574.
