[Bug tree-optimization/64269] [4.8/4.9/5 Regression] ICE with -O3 enabled on Ubuntu 14.04
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64269
--- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org ---
Shorter testcase:
void
foo (char *p)
{
__SIZE_TYPE__ s = ~(__SIZE_TYPE__)0;
*p = 0;
__builtin_memset (p + 1, 0, s);
}
[Bug tree-optimization/64269] [4.8/4.9/5 Regression] ICE with -O3 enabled on Ubuntu 14.04
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64269 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org --- Created attachment 34260 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34260action=edit gcc5-pr64269.patch Untested fix.
[Bug c/64279] New: Warning missing for (cond) ? A : A / if(cond) expr1; else expr1; // same expression in if and else branch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64279 Bug ID: 64279 Summary: Warning missing for (cond) ? A : A / if(cond) expr1; else expr1; // same expression in if and else branch Product: gcc Version: 5.0 Status: UNCONFIRMED Keywords: diagnostic Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: burnus at gcc dot gnu.org CC: mpolacek at gcc dot gnu.org Related to PR63357 but for the branch and not for the condition. In a real-world code, cppcheck detected: Found duplicate branches for 'if' and 'else'.: if (_perimeter = ci.perimeter) _perimeter -= ci.perimeter; else _perimeter -= ci.perimeter; It would be nice if GCC could also detect those - at least when both branches consist only of a simple statement - and similarly for (cond) ? a : a.
[Bug lto/64262] [5 Regression] Several LTO failures after r218609.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64262 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED CC||trippels at gcc dot gnu.org Resolution|--- |FIXED --- Comment #3 from Markus Trippelsdorf trippels at gcc dot gnu.org --- Fixed by r218659.
[Bug rtl-optimization/64255] [5 Regression] failures with -O2 optimization on i = 0 ? (unsigned long) i : - (unsigned long) i
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64255 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #12 from Markus Trippelsdorf trippels at gcc dot gnu.org --- Fixed by r218658.
[Bug rtl-optimization/63917] [5 Regression] r217646 caused many failures
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63917 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED CC||trippels at gcc dot gnu.org Resolution|--- |FIXED --- Comment #11 from Markus Trippelsdorf trippels at gcc dot gnu.org --- Fixed.
[Bug rtl-optimization/64255] [5 Regression] failures with -O2 optimization on i = 0 ? (unsigned long) i : - (unsigned long) i
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64255 Bug 64255 depends on bug 63917, which changed state. Bug 63917 Summary: [5 Regression] r217646 caused many failures https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63917 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED
[Bug c++/64261] false branch of conditional operator ?: evaluated in a template constexpr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64261 --- Comment #2 from Eugene eugene at hutorny dot in.ua --- -Wall -pedantic -Os -g -std=c++0x
[Bug middle-end/64246] [5 Regression] ICE building libada for Windows due to NULL loop header
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64246 Eric Botcazou ebotcazou at gcc dot gnu.org changed: What|Removed |Added Status|WAITING |ASSIGNED Assignee|rguenth at gcc dot gnu.org |ebotcazou at gcc dot gnu.org --- Comment #2 from Eric Botcazou ebotcazou at gcc dot gnu.org --- Let me have a look first.
[Bug other/64278] [5 Regression] /sreal.c:254:22: error: call of overloaded 'abs(const int64_t)' is ambiguous
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64278 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P1 CC||mliska at suse dot cz Target Milestone|--- |5.0 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Martin - please simply use absu_hwi.
[Bug tree-optimization/64277] [4.9/5.0 Regression] Incorrect warning array subscript is above array bounds
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64277 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |4.9.3
[Bug middle-end/64274] [5.0 Regression][ARM] gcc.target/arm/fixed-point-exec.c ICE in fold_binary_loc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64274 --- Comment #2 from ktkachov at gcc dot gnu.org --- (In reply to Marek Polacek from comment #1) Does the following fix it? diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 7b68bea..34f5a6b 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -10082,7 +10082,8 @@ fold_binary_loc (location_t loc, /* Reassociate (plus (plus (mult) (foo)) (mult)) as (plus (plus (mult) (mult)) (foo)) so that we can take advantage of the factoring cases below. */ - if (TYPE_OVERFLOW_WRAPS (type) + if (ANY_INTEGRAL_TYPE_P (type) + TYPE_OVERFLOW_WRAPS (type) (((TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR) TREE_CODE (arg1) == MULT_EXPR) Yes, thanks. I'll bootstrap this on arm-none-linux-gnueabihf it you'd like
[Bug middle-end/64274] [5.0 Regression][ARM] gcc.target/arm/fixed-point-exec.c ICE in fold_binary_loc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64274 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P1 --- Comment #3 from Richard Biener rguenth at gcc dot gnu.org --- That would even fix a wrong-code bug for unsigned fixed-point types.
[Bug tree-optimization/64280] New: [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280 Bug ID: 64280 Summary: [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Created attachment 34261 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34261action=edit preprocessed source ./cc1plus -quiet trainer.ii -O trainer.cpp: In member function 'virtual bool zinnia::TrainerImpl::train(const char*)': trainer.cpp:124:6: internal compiler error: in replace_uses_by, at tree-cfg.c:1789 0xfb5c3d replace_uses_by(tree_node*, tree_node*) /space/rguenther/src/svn/trunk2/gcc/tree-cfg.c:1789 0xfb61dd gimple_merge_blocks /space/rguenther/src/svn/trunk2/gcc/tree-cfg.c:1902 0xa64864 merge_blocks(basic_block_def*, basic_block_def*) /space/rguenther/src/svn/trunk2/gcc/cfghooks.c:760 0xfce6cb cleanup_tree_cfg_bb /space/rguenther/src/svn/trunk2/gcc/tree-cfgcleanup.c:657 0xfce74a cleanup_tree_cfg_1 /space/rguenther/src/svn/trunk2/gcc/tree-cfgcleanup.c:689 0xfce8a6 cleanup_tree_cfg_noloop /space/rguenther/src/svn/trunk2/gcc/tree-cfgcleanup.c:747 0xfce9b2 cleanup_tree_cfg() /space/rguenther/src/svn/trunk2/gcc/tree-cfgcleanup.c:802 0xe79acc execute_function_todo /space/rguenther/src/svn/trunk2/gcc/passes.c:1893 0xe78d45 do_per_function /space/rguenther/src/svn/trunk2/gcc/passes.c:1632 0xe79dfc execute_todo /space/rguenther/src/svn/trunk2/gcc/passes.c:1997 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 tree-optimization/64280] [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug ipa/64281] New: [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64281 Bug ID: 64281 Summary: [5 Regression] ICE: Segmentation fault Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Created attachment 34262 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34262action=edit preprocessed source ./cc1plus -quiet qbtsession.ii ../../src/qtlibtorrent/qbtsession.cpp: In member function 'QTorrentHandle QBtSession::addMagnetUri(QString, bool, bool, const QString)': ../../src/qtlibtorrent/qbtsession.cpp:1030:70: warning: 'libtorrent::torrent_handle libtorrent::add_magnet_uri(libtorrent::session, const string, libtorrent::add_torrent_params)' is deprecated [-Wdeprecated-declarations] In file included from ../../src/torrentpersistentdata.h:38:0, from ../../src/qtlibtorrent/qbtsession.cpp:53: /usr/include/libtorrent/magnet_uri.hpp:62:17: note: declared here ../../src/qtlibtorrent/qbtsession.cpp: At global scope: ../../src/qtlibtorrent/qbtsession.cpp:3169:1: internal compiler error: Segmentation fault 0xf7881a crash_signal /space/rguenther/src/svn/trunk2/gcc/toplev.c:358 0x6c086d tree_check(tree_node const*, char const*, int, char const*, tree_code) /space/rguenther/src/svn/trunk2/gcc/tree.h:3023 0xa810a4 symbol_table::decl_assembler_name_hash(tree_node const*) /space/rguenther/src/svn/trunk2/gcc/symtab.c:78 0xa813b3 symbol_table::insert_to_assembler_name_hash(symtab_node*, bool) /space/rguenther/src/svn/trunk2/gcc/symtab.c:171 0xa816f9 symbol_table::symtab_initialize_asm_name_hash() /space/rguenther/src/svn/trunk2/gcc/symtab.c:252 0xa835e4 symtab_node::get_for_asmname(tree_node const*) /space/rguenther/src/svn/trunk2/gcc/symtab.c:926 0xa9b481 handle_alias_pairs /space/rguenther/src/svn/trunk2/gcc/cgraphunit.c:1123 0xa9eaac symbol_table::finalize_compilation_unit() /space/rguenther/src/svn/trunk2/gcc/cgraphunit.c:2316 0x7f6366 cp_write_global_declarations() /space/rguenther/src/svn/trunk2/gcc/cp/decl2.c:4688 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 ipa/64281] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64281 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug tree-optimization/64280] [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280
Markus Trippelsdorf trippels at gcc dot gnu.org changed:
What|Removed |Added
CC||trippels at gcc dot gnu.org
--- Comment #1 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
reduced test case:
class A
{
public:
A ();
};
class B
{
public:
B (int);
operator void *() { return m_fn1 () ? 0 : this; }
int m_fn1 ();
};
typedef int jmp_buf[];
struct C
{
jmp_buf cond_;
};
class F
{
C what_;
bool m_fn2 ();
};
int _setjmp (int[]);
void longjmp ();
class D
{
public:
D () { longjmp (); }
};
bool
F::m_fn2 ()
{
B a (0);
if (a)
if (_setjmp (what_.cond_))
return 0;
else
D ();
A b;
}
[Bug ipa/64282] [5 Regression] ICE in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64282 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug ipa/64282] New: [5 Regression] ICE in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64282 Bug ID: 64282 Summary: [5 Regression] ICE in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Created attachment 34263 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34263action=edit preprocessed source ./cc1plus -quiet scim_skk_dictionary.ii -O2 scim_skk_dictionary.cpp:1190:1: internal compiler error: in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635 0xc44ef1 gimple_get_virt_method_for_vtable(long, tree_node*, unsigned long, bool*) /space/rguenther/src/svn/trunk2/gcc/gimple-fold.c:5635 0x1812801 ipa_get_indirect_edge_target_1 /space/rguenther/src/svn/trunk2/gcc/ipa-cp.c:1932 0x1812dd9 ipa_get_indirect_edge_target(cgraph_edge*, vectree_node*, va_heap, vl_ptr, vecipa_polymorphic_call_context, va_heap, vl_ptr, vecipa_agg_jump_function*, va_heap, vl_ptr, bool*) /space/rguenther/src/svn/trunk2/gcc/ipa-cp.c:2030 0xd42213 estimate_edge_devirt_benefit /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3007 0xd42394 estimate_edge_size_and_time /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3048 0xd4262e estimate_calls_size_and_time /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3110 0xd4256a estimate_calls_size_and_time /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3098 0xd42aaa estimate_node_size_and_time /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3205 0xd44129 do_estimate_edge_time(cgraph_edge*) /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3701 0xd44303 do_estimate_edge_size(cgraph_edge*) /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3752 0xd394e2 estimate_edge_size /space/rguenther/src/svn/trunk2/gcc/ipa-inline.h:289 0xd39549 estimate_edge_growth /space/rguenther/src/svn/trunk2/gcc/ipa-inline.h:302 0xd44688 estimate_size_after_inlining(cgraph_node*, cgraph_edge*) /space/rguenther/src/svn/trunk2/gcc/ipa-inline-analysis.c:3845 0x1824835 caller_growth_limits /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:204 0x1824f3f can_inline_edge_p /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:374 0x1827307 update_caller_keys /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:1208 0x1828ede inline_small_functions /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:1838 0x1829e68 ipa_inline /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:2189 0x182a996 execute /space/rguenther/src/svn/trunk2/gcc/ipa-inline.c:2562 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 tree-optimization/64283] New: [5 Regression] ICE: in verify_ssa, at tree-ssa.c:939
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64283 Bug ID: 64283 Summary: [5 Regression] ICE: in verify_ssa, at tree-ssa.c:939 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Created attachment 34264 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34264action=edit preprocessed source ./cc1 -quiet dev.i -O2 ../net/core/dev.c: In function 'dev_change_net_namespace.part.93': ../net/core/dev.c:7285:1: internal compiler error: in verify_ssa, at tree-ssa.c:939 0xf9eaf7 verify_ssa(bool, bool) /space/rguenther/src/svn/trunk2/gcc/tree-ssa.c:939 0xc486f4 execute_function_todo /space/rguenther/src/svn/trunk2/gcc/passes.c:1947 0xc478a1 do_per_function /space/rguenther/src/svn/trunk2/gcc/passes.c:1639 0xc48892 execute_todo /space/rguenther/src/svn/trunk2/gcc/passes.c:1997 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 tree-optimization/64283] [5 Regression] ICE: in verify_ssa, at tree-ssa.c:939
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64283 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug ipa/64281] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64281 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||trippels at gcc dot gnu.org Resolution|--- |DUPLICATE --- Comment #1 from Markus Trippelsdorf trippels at gcc dot gnu.org --- dup. *** This bug has been marked as a duplicate of bug 61558 ***
[Bug middle-end/61558] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61558 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added CC||rguenth at gcc dot gnu.org --- Comment #15 from Markus Trippelsdorf trippels at gcc dot gnu.org --- *** Bug 64281 has been marked as a duplicate of this bug. ***
[Bug ipa/64282] [5 Regression] ICE in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64282 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added CC||trippels at gcc dot gnu.org --- Comment #1 from Markus Trippelsdorf trippels at gcc dot gnu.org --- Might be a dup of PR64139.
[Bug ipa/63569] [5.0 Regression] Wrong code with volatile and ICF
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63569 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added CC||rguenth at gcc dot gnu.org --- Comment #10 from Markus Trippelsdorf trippels at gcc dot gnu.org --- *** Bug 64283 has been marked as a duplicate of this bug. ***
[Bug tree-optimization/64283] [5 Regression] ICE: in verify_ssa, at tree-ssa.c:939
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64283 Markus Trippelsdorf trippels at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||trippels at gcc dot gnu.org Resolution|--- |DUPLICATE --- Comment #1 from Markus Trippelsdorf trippels at gcc dot gnu.org --- dup. *** This bug has been marked as a duplicate of bug 63569 ***
[Bug c/60784] Spurious -Wmissing-field-initializers warning for anonymous structure
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60784
--- Comment #7 from Peter Wu peter at lekensteyn dot nl ---
This bug is still present in GCC 4.9.2 and 4.9.3 (prerelease 20141210). Now
building gcc-5-20141207 to verify. (Not sure whether this gets backported to
4.9.x, just checking.)
//
gcc -Wextra bug.c -o /dev/null
//
typedef struct HidppMessage {
struct {
int feature_index;
int func;
};
} HidppMessage;
int main(void) {
HidppMessage req = {
.feature_index = 0xFF,
.func = 1
};
return req.func;
}
//
Strange enough, replacing 0xFF by 0x00 hides the warning.
[Bug tree-optimization/64280] [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-12-12 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Richard Biener rguenth at gcc dot gnu.org --- Mine.
[Bug c++/58796] throw nullptr not caught by catch(type*)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58796 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added CC||jwakely.gcc at gmail dot com --- Comment #2 from Paolo Carlini paolo.carlini at oracle dot com --- Looks like this is (also) a runtime issue: normally works on clang, but does *not* if -stdlib=libstdc++ is added to the command line. Futher evidence: does not work with icc, which uses the system runtime, but works with eccp.
[Bug ipa/64282] [5 Regression] ICE in gimple_get_virt_method_for_vtable, at gimple-fold.c:5635
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64282
--- Comment #2 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
reduced test case:
template class _T1 struct A
{
_T1 first;
};
struct B
{
int operator!=(B);
};
template typename _Tp struct C
{
C (B);
_Tp operator*();
int operator!=(C);
};
template typename _Tp class D
{
public:
typedef C_Tp const_iterator;
const_iterator m_fn1 () const;
B m_fn2 ();
void m_fn3 ();
};
class F
{
struct G
{
static G
m_fn5 ()
{
void fn1 ();
return *reinterpret_castG * (fn1);
}
int *
m_fn6 ()
{
return reinterpret_castint * (this);
}
};
struct _Alloc_hider
{
_Alloc_hider (int *p1, int) : _M_p (p1) {}
int *_M_p;
} _M_dataplus;
G
m_fn4 ()
{
return G::m_fn5 ();
}
public:
F () : _M_dataplus (m_fn4 ().m_fn6 (), 0) {}
};
class H
{
void m_fn7 (const F , bool );
bool m_fn8 (const DF , const F , F );
};
typedef Aint CandPair;
class I
{
public:
virtual void m_fn9 (const F , bool, DCandPair );
};
class J : I
{
public:
void m_fn9 (const F , bool, DCandPair );
};
DI * c;
void
J::m_fn9 (const F , bool, DCandPair )
{
Dint a;
for (B b; b != a.m_fn2 ();)
;
}
inline void
fn2 (F p1, int, int, J *p4, DCandPair)
{
DCandPair d;
d.m_fn3 ();
p4-m_fn9 (p1, 0, d);
for (DI *::const_iterator e = c.m_fn1 (); e != c.m_fn2 ();)
(*e)-m_fn9 (p1, 0, d);
}
void
H::m_fn7 (const F , bool )
{
AF f;
DF g;
F h;
m_fn8 (g, f.first, h);
}
bool
H::m_fn8 (const DF p1, const F , F )
{
F i;
p1.m_fn1 ();
DCandPair j;
fn2 (i, 0, 0, 0, j);
}
[Bug tree-optimization/64284] New: [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284 Bug ID: 64284 Summary: [5 Regression] ICE: Segmentation fault Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Created attachment 34265 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34265action=edit preprocessed source ./cc1 -quiet scp.i -O2 scp.c: In function 'shell_quotearg': scp.c:126:1: internal compiler error: Segmentation fault 0xd473a0 crash_signal /space/rguenther/src/svn/trunk2/gcc/toplev.c:358 0xf8bde8 thread_through_loop_header /space/rguenther/src/svn/trunk2/gcc/tree-ssa-threadupdate.c:1869 0xf8d8e8 thread_through_all_blocks(bool) /space/rguenther/src/svn/trunk2/gcc/tree-ssa-threadupdate.c:2570 0x1027bd9 finalize_jump_threads /space/rguenther/src/svn/trunk2/gcc/tree-vrp.c:10151 0x1027fd6 execute_vrp /space/rguenther/src/svn/trunk2/gcc/tree-vrp.c:10305 0x102825c execute /space/rguenther/src/svn/trunk2/gcc/tree-vrp.c:10368 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 tree-optimization/64284] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug ipa/64139] [4.9/5 Regression] ice in possible_polymorphic_call_targets, at ipa-devirt.c:2410
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64139
Markus Trippelsdorf trippels at gcc dot gnu.org changed:
What|Removed |Added
CC||trippels at gcc dot gnu.org
Summary|[5 Regression] ice in |[4.9/5 Regression] ice in
|possible_polymorphic_call_t |possible_polymorphic_call_t
|argets, at |argets, at
|ipa-devirt.c:2410 |ipa-devirt.c:2410
Known to fail||4.9.1, 5.0
--- Comment #5 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
reduced test case:
class IObject {
public:
virtual ~IObject();
};
class A {
virtual int m_fn1();
};
class B {
public:
virtual int m_fn2(B) const;
};
class D : IObject, public virtual B {};
class G : public D, A {
public:
G(A);
};
class F : B {
friend class C;
};
class C {
void m_fn3(const IObject , int );
void m_fn4(const B , int );
};
A a;
void C::m_fn3(const IObject , int p2) {
G r(a);
m_fn4(r, p2);
}
void C::m_fn4(const B p1, int ) {
F b;
p1.m_fn2(b);
}
Also ICEs with gcc-4.9:
trippels@gcc20 ~ % g++ -c -O2 bug178.cc
bug178.cc: In member function ‘void C::m_fn3(const IObject, int)’:
bug178.cc:32:1: internal compiler error: in possible_polymorphic_call_targets,
at ipa-devirt.c:1557
[Bug lto/64285] New: [5 Regression] During LTO: ICE segfault in ipa_polymorphic_call_context::get_dynamic_type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64285 Bug ID: 64285 Summary: [5 Regression] During LTO: ICE segfault in ipa_polymorphic_call_context::get_dynamic_type Product: gcc Version: 5.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: lto Assignee: unassigned at gcc dot gnu.org Reporter: burnus at gcc dot gnu.org CC: hubicka at gcc dot gnu.org I tried compiling the program again which gave the ICE of PR64043, motivated by the patch https://gcc.gnu.org/ml/gcc-patches/2014-12/msg01076.html which looks vaguely related. In any case, it now (r218661) fails with: gcc-trunk/include/c++/5.0.0/bits/unique_ptr.h:70:0: internal compiler error: Segmentation fault operator()(_Tp* __ptr) const ^ 0xa2576f crash_signal ../../gcc/toplev.c:358 0x878d2f tree_check(tree_node*, char const*, int, char const*, tree_code) ../../gcc/tree.h:2778 0x878d2f ipa_polymorphic_call_context::get_dynamic_type(tree_node*, tree_node*, tree_node*, gimple_statement_base*) ../../gcc/ipa-polymorphic-call.c:1594 0xb9f23e eliminate_dom_walker::before_dom_children(basic_block_def*) ../../gcc/tree-ssa-pre.c:4334 0xfde647 dom_walker::walk(basic_block_def*) ../../gcc/domwalk.c:188 0xba0da0 eliminate ../../gcc/tree-ssa-pre.c:4491 0xba0ff5 execute ../../gcc/tree-ssa-pre.c:4910 Testcase reduction under way
[Bug tree-optimization/64284] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-12-12 CC||spop at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Registering jump thread: (4, 5) incoming edge; (5, 55) joiner; (55, 63) normal; Registering FSM jump thread: (94, 5) incoming edge; (6, 20) nocopy; Registering jump thread: (61, 6) incoming edge; (6, 20) normal; Registering jump thread: (77, 6) incoming edge; (6, 20) normal; Registering jump thread: (69, 6) incoming edge; (6, 20) normal; Registering FSM jump thread: (94, 5) incoming edge; (55, 56) nocopy; ... Threaded jump 69 -- 6 to 109 Threaded jump 77 -- 6 to 109 Threaded jump 61 -- 6 to 109 and then we end up with an invalid loop. FSM threads the latch edge but doesn't update the loop structure accordingly so later asking for the loop latch edge fails (because the loop isn't anymore it seems - or header and latch are no longer valid). Let me have a look.
[Bug tree-optimization/64284] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284
--- Comment #2 from Markus Trippelsdorf trippels at gcc dot gnu.org ---
trippels@gcc20 ~ % cat scp.i
int *a;
int b;
int
fn1() {
enum { QSTRING } c = 0;
while (1) {
switch (*a) {
case '\'':
c = 0;
default:
switch (c)
case 0:
if (b)
return 0;
c = 1;
}
a++;
}
}
[Bug libstdc++/64276] would be better to use __cpp_exceptions rather than __EXCEPTIONS to determine whether exceptions are available
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64276 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2014-12-12 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #3 from Jonathan Wakely redi at gcc dot gnu.org --- There is no reason not to make this change, __cpp_exceptions is the portable, WG21-recommended way to tell if the compiler supports try/catch.
[Bug tree-optimization/64284] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284
--- Comment #3 from Richard Biener rguenth at gcc dot gnu.org ---
Sth like
Index: tree-ssa-threadupdate.c
===
--- tree-ssa-threadupdate.c (revision 218621)
+++ tree-ssa-threadupdate.c (working copy)
@@ -2364,7 +2364,7 @@ duplicate_seme_region (edge entry, edge
basic_block *region_copy)
{
unsigned i;
- bool free_region_copy = false, copying_header = false;
+ bool free_region_copy = false;
struct loop *loop = entry-dest-loop_father;
edge exit_copy;
edge redirected;
@@ -2388,10 +2388,7 @@ duplicate_seme_region (edge entry, edge
initialize_original_copy_tables ();
- if (copying_header)
-set_loop_copy (loop, loop_outer (loop));
- else
-set_loop_copy (loop, loop);
+ set_loop_copy (loop, loop);
if (!region_copy)
{
@@ -2453,6 +2450,8 @@ duplicate_seme_region (edge entry, edge
}
/* Redirect the entry and add the phi node arguments. */
+ if (entry-dest == loop-header)
+mark_loop_for_removal (loop);
redirected = redirect_edge_and_branch (entry, get_bb_copy (entry-dest));
gcc_assert (redirected != NULL);
flush_pending_stmts (entry);
works but results in the less than optimal
fix_loop_structure: fixing up loops for function
fix_loop_structure: removing loop 1
flow_loops_find: discovered new loop 2 with header 5
in the testcase the loop header will be entry-src it seems - not sure
how reliably that is in the full generality of duplicate_seme_region.
We know that all blocks are contained in the same loop, so it must be
possible to compute where the header goes.
Ideally we'd simply set loop-header and loop-latch to the correct values,
marking loops for fixup (to recompute BB ownership - or do even that
ourselves).
The testcase has two latches later, thus loop-latch would be NULL, but
both VRP and DOM init loops without LOOPS_MAY_HAVE_MULTIPLE_LATCHES so we'd
have to disambiguate the loops.
That said - the above patch works.
[Bug lto/64285] [5 Regression] During LTO: ICE segfault in ipa_polymorphic_call_context::get_dynamic_type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64285 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |5.0
[Bug c/60784] Spurious -Wmissing-field-initializers warning for anonymous structure
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60784 --- Comment #8 from Peter Wu peter at lekensteyn dot nl --- GCC 5 is OK, the question is whether 4.9 will or will not receive a fix?
[Bug rtl-optimization/64255] [5 Regression] failures with -O2 optimization on i = 0 ? (unsigned long) i : - (unsigned long) i
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64255 --- Comment #13 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Dec 12 12:43:34 2014 New Revision: 218665 URL: https://gcc.gnu.org/viewcvs?rev=218665root=gccview=rev Log: PR rtl-optimization/64255 * gcc.c-torture/execute/pr64255.c: New test. PR rtl-optimization/64260 * gcc.c-torture/execute/pr64260.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr64255.c trunk/gcc/testsuite/gcc.c-torture/execute/pr64260.c Modified: trunk/gcc/testsuite/ChangeLog
[Bug tree-optimization/64260] [5 Regression] wrong code at -O1 on x86_64-linux-gnu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64260 --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Dec 12 12:43:34 2014 New Revision: 218665 URL: https://gcc.gnu.org/viewcvs?rev=218665root=gccview=rev Log: PR rtl-optimization/64255 * gcc.c-torture/execute/pr64255.c: New test. PR rtl-optimization/64260 * gcc.c-torture/execute/pr64260.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr64255.c trunk/gcc/testsuite/gcc.c-torture/execute/pr64260.c Modified: trunk/gcc/testsuite/ChangeLog
[Bug rtl-optimization/64286] New: Redundant extend removal ignores vector element type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64286
Bug ID: 64286
Summary: Redundant extend removal ignores vector element type
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sergos.gnu at gmail dot com
Created attachment 34266
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34266action=edit
reproducer, taken from public sources
The problem is reproducible starting 4.9 and on trunk also.
The line 29 contains a load into V16QI vector
29:p2 = _mm_loadu_si128((__m128i *) (s - 3 * p));
later used at
60:work = _mm_or_si128(_mm_subs_epu8(p2, p1), _mm_subs_epu8(p1, p2));
and later sign extended into V16HI vector
151: p256_2 = _mm256_cvtepu8_epi16(p2);
At the phase 217 split2 we have:
(insn 207 204 209 2 (set (reg:V16QI 21 xmm0 [447])
(mem:V16QI (plus:DI (reg/f:DI 6 bp)
(const_int -114 [0xff8e])) [0 S16 A16]))
GCC_Bug.p.c:2609 1136 {*movv16qi_internal}
(expr_list:REG_EQUIV (mem:V16QI (plus:DI (reg/f:DI 20 frame)
(const_int -66 [0xffbe])) [0 S16 A16])
(nil)))
...
(insn 236 235 238 2 (set (reg:V16QI 22 xmm1 [462])
(us_minus:V16QI (reg:V16QI 23 xmm2 [450])
(reg:V16QI 21 xmm0 [447]))) GCC_Bug.p.c:2925 2096
{*sse2_ussubv16qi3}
(nil))
... (and number of other operations with xmm0 as V16QI)
(insn 871 869 873 2 (set (reg:V16HI 21 xmm0 [orig:573 D.17673 ] [573])
(zero_extend:V16HI (reg:V16QI 21 xmm0 [447]))) GCC_Bug.p.c:5280 2521
{avx2_zero_extendv16qiv16hi2}
(nil))
After that REE reports:
---
Trying to eliminate extension:
(insn 871 869 873 2 (set (reg:V16HI 21 xmm0 [orig:573 D.17673 ] [573])
(zero_extend:V16HI (reg:V16QI 21 xmm0 [447]))) GCC_Bug.p.c:5280 2521
{avx2_zero_extendv16qiv16hi2}
(nil))
Tentatively merged extension with definition :
(insn 207 204 209 2 (set (reg:V16HI 21 xmm0)
(zero_extend:V16HI (mem:V16QI (plus:DI (reg/f:DI 6 bp)
(const_int -114 [0xff8e])) [0 S16 A16])))
GCC_Bug.p.c:2609 -1
(nil))
deferring rescan insn with uid = 207.
All merges were successful.
Eliminated the extension.
-
That renders all V16QI insns using xmm0 invalid.
The test should be compiled with
gcc -O2 GCC_Bug_min.c -mavx2
And run on an avx2-enabled platform.
Correct output:
Is valid: 1
Incorrect output:
Is valid: 0
[Bug tree-optimization/64280] [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #3 from Richard Biener rguenth at gcc dot gnu.org --- Fixed.
[Bug tree-optimization/64280] [5 Regression] ICE in replace_uses_by, at tree-cfg.c:1789
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64280 --- Comment #4 from Richard Biener rguenth at gcc dot gnu.org --- Author: rguenth Date: Fri Dec 12 13:26:15 2014 New Revision: 218668 URL: https://gcc.gnu.org/viewcvs?rev=218668root=gccview=rev Log: 2014-12-12 Richard Biener rguent...@suse.de PR middle-end/64280 * tree-cfg.c (replace_uses_by): Guard assert properly. * g++.dg/torture/pr64280.C: New testcase. Added: trunk/gcc/testsuite/g++.dg/torture/pr64280.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-cfg.c
[Bug middle-end/61558] [5 Regression] ICE: Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61558 --- Comment #16 from Richard Biener rguenth at gcc dot gnu.org --- This triggers a _lot_ when re-building openSUSE with GCC 5. And it is especially annoying because Segmentation fault isn't a nice ICE to filter. Please fix this bug soon.
[Bug c++/64265] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265
--- Comment #1 from Bernd Edlinger bernd.edlinger at hotmail dot de ---
with current trunk we get this in test.cpp.176t.cplxlower0:
static void std::_Destroy_auxanonymous ::__destroy(_ForwardIterator,
_ForwardIterator) [with _ForwardIterator = std::basic_stringchar*; bool
anonymous = false] (struct basic_string * __first, struct basic_string *
__last)
{
struct basic_string * D.17011;
struct basic_string * _7;
bb 2:
# __first_1 = PHI __first_3(D)(0), __first_9(3)
if (__first_1 == __last_5(D))
goto bb 4;
else
goto bb 3;
bb 3:
_7 = std::__addressofstd::basic_stringchar (__first_1);
std::_Destroystd::basic_stringchar (_7);
__first_9 = __first_1 + 8;
goto bb 2;
bb 4:
return;
which is tranformed to this in test.cpp.178t.tsan0:
static void std::_Destroy_auxanonymous ::__destroy(_ForwardIterator,
_ForwardIterator) [with _ForwardIterator = std::basic_stringchar*; bool
anonymous = false] (struct basic_string * __first, struct basic_string *
__last)
{
struct basic_string * D.17011;
struct basic_string * _7;
void * _10;
bb 2:
# __first_1 = PHI __first_3(D)(0), __first_9(3)
_10 = __builtin_return_address (0);
__builtin___tsan_func_entry (_10);
if (__first_1 == __last_5(D))
goto bb 4;
else
goto bb 3;
bb 3:
_7 = std::__addressofstd::basic_stringchar (__first_1);
std::_Destroystd::basic_stringchar (_7);
__first_9 = __first_1 + 8;
goto bb 2;
bb 4:
__builtin___tsan_func_exit ();
return;
}
but with r217669 reverted, we get in test.cpp.176t.cplxlower0:
static void std::_Destroy_auxanonymous ::__destroy(_ForwardIterator,
_ForwardIterator) [with _ForwardIterator = std::basic_stringchar*; bool
anonymous = false] (struct basic_string * __first, struct basic_string *
__last)
{
struct basic_string * D.17027;
struct basic_string * _7;
bb 2:
goto bb 4;
bb 3:
_7 = std::__addressofstd::basic_stringchar (__first_1);
std::_Destroystd::basic_stringchar (_7);
__first_9 = __first_1 + 8;
bb 4:
# __first_1 = PHI __first_3(D)(2), __first_9(3)
if (__first_1 != __last_5(D))
goto bb 3;
else
goto bb 5;
bb 5:
return;
}
which is transformed to this in test.cpp.178t.tsan0:
static void std::_Destroy_auxanonymous ::__destroy(_ForwardIterator,
_ForwardIterator) [with _ForwardIterator = std::basic_stringchar*; bool
anonymous = false] (struct basic_string * __first, struct basic_string *
__last)
{
struct basic_string * D.17027;
struct basic_string * _7;
void * _10;
bb 2:
_10 = __builtin_return_address (0);
__builtin___tsan_func_entry (_10);
goto bb 4;
bb 3:
_7 = std::__addressofstd::basic_stringchar (__first_1);
std::_Destroystd::basic_stringchar (_7);
__first_9 = __first_1 + 8;
bb 4:
# __first_1 = PHI __first_3(D)(2), __first_9(3)
if (__first_1 != __last_5(D))
goto bb 3;
else
goto bb 5;
bb 5:
__builtin___tsan_func_exit ();
return;
}
[Bug tree-optimization/64269] [4.8/4.9/5 Regression] ICE with -O3 enabled on Ubuntu 14.04
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64269 --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org --- Author: jakub Date: Fri Dec 12 13:32:16 2014 New Revision: 218669 URL: https://gcc.gnu.org/viewcvs?rev=218669root=gccview=rev Log: PR tree-optimization/64269 * tree-ssa-forwprop.c (simplify_builtin_call): Bail out if len2 or diff are too large. * gcc.c-torture/compile/pr64269.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/compile/pr64269.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-forwprop.c
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-12-12 CC||dodji at gcc dot gnu.org, ||dvyukov at gcc dot gnu.org, ||jakub at gcc dot gnu.org, ||kcc at gcc dot gnu.org Component|c++ |sanitizer Target Milestone|--- |5.0 Summary|r217669 broke tsan |[5 Regression] r217669 ||broke tsan Ever confirmed|0 |1 --- Comment #2 from Richard Biener rguenth at gcc dot gnu.org --- So it looks like tsan wants to instrument the function entry edge but instead instruments the first basic block without considering backedges. Latent TSAN bug.
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265
--- Comment #3 from Richard Biener rguenth at gcc dot gnu.org ---
static void
instrument_func_entry (void)
{
basic_block succ_bb;
gimple_stmt_iterator gsi;
tree ret_addr, builtin_decl;
gimple g;
succ_bb = single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun));
gsi = gsi_after_labels (succ_bb);
indeed.
It should do
succ_bb = split_edge (single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)));
gsi = gsi_after_labels (succ_bb);
instead for example. Or use gsi_insert_on_edge_immediate () and insert
on the edge (that avoids splitting the edge if not necessary).
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265
--- Comment #4 from Bernd Edlinger bernd.edlinger at hotmail dot de ---
and now I see that his example is mis-compiled too:
cat test1.cpp
int test1(int x)
{
abc:
x=x+1;
__builtin_printf(Test %d\n, x);
if (x9)
goto abc;
return 0;
}
is transformed to this in test1.cpp.178t.tsan0:
int test1(int) (int x)
{
int D.2636;
int _7;
void * _8;
# x_1 = PHI x_3(D)(0), x_5(3)
abc:
_8 = __builtin_return_address (0);
__builtin___tsan_func_entry (_8);
x_5 = x_1 + 1;
__builtin_printf (Test %d\n, x_5);
if (x_5 = 8)
goto bb 3;
else
goto bb 4;
bb 3:
goto bb 2 (abc);
bb 4:
_7 = 0;
L3:
__builtin___tsan_func_exit ();
return _7;
}
with or without r217669, and also if test1.cpp is renamed to test1.c !
[Bug c++/64261] false branch of conditional operator ?: evaluated in a template constexpr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64261 Ville Voutilainen ville.voutilainen at gmail dot com changed: What|Removed |Added CC||ville.voutilainen at gmail dot com --- Comment #3 from Ville Voutilainen ville.voutilainen at gmail dot com --- I don't see any warnings with either 4.9.1 or with 5.0.
[Bug middle-end/64274] [5.0 Regression][ARM] gcc.target/arm/fixed-point-exec.c ICE in fold_binary_loc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64274 --- Comment #4 from Marek Polacek mpolacek at gcc dot gnu.org --- Author: mpolacek Date: Fri Dec 12 14:02:37 2014 New Revision: 218671 URL: https://gcc.gnu.org/viewcvs?rev=218671root=gccview=rev Log: PR middle-end/64274 * fold-const.c (fold_binary_loc): Add ANY_INTEGRAL_TYPE_P check. Modified: trunk/gcc/ChangeLog trunk/gcc/fold-const.c
[Bug middle-end/64274] [5.0 Regression][ARM] gcc.target/arm/fixed-point-exec.c ICE in fold_binary_loc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64274 Marek Polacek mpolacek at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #5 from Marek Polacek mpolacek at gcc dot gnu.org --- Fixed.
[Bug target/64154] enable fipa-ra for Thumb1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64154 Ramana Radhakrishnan ramana at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-12-12 CC||ramana at gcc dot gnu.org Ever confirmed|0 |1
[Bug bootstrap/63740] [4.9 Regression] GCC 4.9.2 bootstrap fails on ARM, haifa-sched.c:6507:1: internal compiler error: in lra_create
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63740 Ramana Radhakrishnan ramana at gcc dot gnu.org changed: What|Removed |Added CC||cltang at gcc dot gnu.org, ||ramana at gcc dot gnu.org --- Comment #10 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- Useful to CC the original author :)
[Bug c++/63707] Brace initialization of array sometimes fails if no copy constructor
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63707 Ville Voutilainen ville.voutilainen at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-12-12 CC||ville.voutilainen at gmail dot com Ever confirmed|0 |1 Known to fail||4.8.2, 4.9.1, 5.0
[Bug target/63399] Segmentation Fault on pow() function call when all parameters constant, ARM v61 Processor
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63399 ktkachov at gcc dot gnu.org changed: What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |WORKSFORME --- Comment #3 from ktkachov at gcc dot gnu.org --- I'm closing this, suspecting a hardware issue. If you do manage to reproduce it consistently feel free to reopen with more details
[Bug target/61578] Code size increase for ARM thumb compared to 4.8.x when compiling with -Os
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61578 --- Comment #12 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- (In reply to Fredrik Hederstierna from comment #9) Created attachment 33866 [details] Simple patch to exclude use of ip Simple patch that make it possible to optionally exclude use of ip for thumb1 when optimizing for size. Please follow https://gcc.gnu.org/contribute.html with respect to contributing patches.
[Bug target/61373] neon registers restored incorrectly with -mapcs-frame -O -fno-omit-frame-pointer
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61373 --- Comment #3 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- (In reply to John Breitenbach from comment #2) Created attachment 33301 [details] siphash24.i sorry for forgetting this attachment in the original report. mapcs-frame comes from a time when Neon didn't exist, it maps to a frame layout from the old abi and is not necessarily relevant in the EABI world. Using -mapcs-frame in this form is quite fragile and definitely going to cause more problems than help in any debugging. You can achieve the same by getting the ARM style unwind tables and then using the unwinder to unwind to get your information required.
[Bug libstdc++/64241] make_exception_ptr returns garbage with -fno-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64241 --- Comment #1 from Jonathan Wakely redi at gcc dot gnu.org --- Author: redi Date: Fri Dec 12 15:10:08 2014 New Revision: 218675 URL: https://gcc.gnu.org/viewcvs?rev=218675root=gccview=rev Log: PR libstdc++/64241 * libsupc++/exception_ptr.h: Return empty object when exceptions are disabled. * testsuite/18_support/exception_ptr/64241.cc: New. Added: trunk/libstdc++-v3/testsuite/18_support/exception_ptr/64241.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/libsupc++/exception_ptr.h
[Bug c++/63604] [C++11] A direct-initialization of a reference should use explicit conversion functions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63604 Ville Voutilainen ville.voutilainen at gmail dot com changed: What|Removed |Added Keywords||rejects-valid CC||ville.voutilainen at gmail dot com Known to fail||4.8.2, 4.9.1, 5.0 --- Comment #1 from Ville Voutilainen ville.voutilainen at gmail dot com --- Clang accepts the code.
[Bug c++/57846] CRTP, templates, metaprogramming, forwarding and static member
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57846 Ville Voutilainen ville.voutilainen at gmail dot com changed: What|Removed |Added Keywords||rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed||2014-12-12 CC||ville.voutilainen at gmail dot com Ever confirmed|0 |1 Known to fail||4.8.2, 4.9.1, 5.0 --- Comment #2 from Ville Voutilainen ville.voutilainen at gmail dot com --- We badly need a reduced testcase for this.
[Bug c++/60691] Build fails in libstdc++ with --enable-sjlj-exceptions on ARM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60691 Ramana Radhakrishnan ramana at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC||ramana at gcc dot gnu.org Resolution|--- |WONTFIX --- Comment #5 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- (In reply to Fabian Vogt from comment #4) (In reply to Andrew Pinski from comment #3) (In reply to Fabian Vogt from comment #2) It crashes and produces weird results if linked to bFLT. Yes because EABI is an elf only abi, if it does not have a place for the unwind tables, then it is incompatible with the ABI :). Is it enough to put it (sorted/ordered) anywhere in the binary and point __exidx_start (IIRC) and __exidx_end to the correct positions? If SJLJ isn't supported for ARM, why does --enable-sjlj-exceptions still exist? Because it is supported for some other targets, mainly windows based ones. Hmm.. Windows RT? :P Anyway, I had also reported the bug on binutils' bugzilla and the gas internal error has been fixed. Nick even made a patch for gcc so it doesn't generate bad asm anymore :-) Bug report on gas: https://sourceware.org/bugzilla/show_bug.cgi?id=16765 Proposed patch: https://sourceware.org/bugzilla/attachment.cgi?id=7520 On ARM EABI, Linux GNUEABI the standard unwind tables are part of the ABI, sjlj exceptions are not used and are likely to be completely bit rotten. There is not much chance that this will work by default on ARM and neither is it going to be standard configuration. Given this situation and that there is no interest in this option on ARM I'm going to reject this bug.
[Bug bootstrap/60632] ICE in regcprop.c (copyprop_hardreg_forward_1)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60632 Ramana Radhakrishnan ramana at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed||2014-12-12 CC||ramana at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- missing testcase
[Bug c++/61924] [C++11] ICE in instantiate_template_1, at cp/pt.c:15618
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61924 Ville Voutilainen ville.voutilainen at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Known to work||5.0 Version|unknown |4.9.1 Keywords||ice-on-invalid-code Last reconfirmed||2014-12-12 CC||ville.voutilainen at gmail dot com Ever confirmed|0 |1 Known to fail||4.8.2, 4.9.1 --- Comment #1 from Ville Voutilainen ville.voutilainen at gmail dot com --- Current trunk accepts the code and diagnoses function::function as not being defined, like clang does. Previous versions ICE.
[Bug c++/60691] Build fails in libstdc++ with --enable-sjlj-exceptions on ARM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60691 --- Comment #6 from Fabian Vogt fab...@ritter-vogt.de --- If sjlj exceptions are not supported for ARM, shouldn't the configure option be invalid for ARM or at least print a warning? If an option does exist and it simply crashes the compiler during make, it's definitely broken and must be removed.
[Bug c++/60691] Build fails in libstdc++ with --enable-sjlj-exceptions on ARM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60691 --- Comment #7 from Jonathan Wakely redi at gcc dot gnu.org --- Just don't do silly things. Just because an option exists doesn't mean you need to use it.
[Bug lto/64285] [5 Regression] During LTO: ICE segfault in ipa_polymorphic_call_context::get_dynamic_type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64285 Tobias Burnus burnus at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE --- Comment #1 from Tobias Burnus burnus at gcc dot gnu.org --- Now the other PR fails with the same message. *** This bug has been marked as a duplicate of bug 64043 ***
[Bug lto/64043] [5 Regression] ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64043 --- Comment #6 from Tobias Burnus burnus at gcc dot gnu.org --- *** Bug 64285 has been marked as a duplicate of this bug. ***
[Bug lto/64043] [5 Regression] ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64043
--- Comment #7 from Tobias Burnus burnus at gcc dot gnu.org ---
Now fails with the following backtrace. The location of the failure might have
changed due to the patch at
https://gcc.gnu.org/ml/gcc-patches/2014-12/msg01076.html ; in any case,
currently the failure is:
foo.ii: In member function ‘__base_dtor ’:
foo.ii:11:1: internal compiler error: Segmentation fault
FooWriter::~FooWriter () { delete validator; }
^
0xa1f99f crash_signal
../../gcc/toplev.c:358
0x873daf tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:2778
0x873daf ipa_polymorphic_call_context::get_dynamic_type(tree_node*, tree_node*,
tree_node*, gimple_statement_base*)
0xb9787e eliminate_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-ssa-pre.c:4334
[Bug middle-end/64182] [5 Regression] wide-int rounding division is broken
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64182 --- Comment #9 from rsandifo at gcc dot gnu.org rsandifo at gcc dot gnu.org --- Author: rsandifo Date: Fri Dec 12 15:46:57 2014 New Revision: 218678 URL: https://gcc.gnu.org/viewcvs?rev=218678root=gccview=rev Log: gcc/ PR middle-end/64182 * wide-int.h (wi::div_round, wi::mod_round): Fix rounding of tied cases. * double-int.c (div_and_round_double): Fix handling of unsigned cases. Use same rounding approach as wide-int.h. gcc/testsuite/ 2014-xx-xx Richard Sandiford richard.sandif...@arm.com Joseph Myers jos...@codesourcery.com PR middle-end/64182 * gcc.dg/plugin/wide-int-test-1.c, gcc.dg/plugin/wide-int_plugin.c: New test. * gcc.dg/plugin/plugin.exp: Register it. * gnat.dg/round_div.adb: New test. Added: trunk/gcc/testsuite/gcc.dg/plugin/wide-int-test-1.c trunk/gcc/testsuite/gcc.dg/plugin/wide-int_plugin.c trunk/gcc/testsuite/gnat.dg/round_div.adb Modified: trunk/gcc/ChangeLog trunk/gcc/double-int.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/plugin/plugin.exp trunk/gcc/wide-int.h
[Bug rtl-optimization/64287] New: Disable -fuse-caller-save when -pg is active
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64287 Bug ID: 64287 Summary: Disable -fuse-caller-save when -pg is active Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: vries at gcc dot gnu.org As discussed in https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01496.html : ... A problem is detected with building Linux kernel on MIPS platform when both -fuse-caller-save and -pg options are present. The reason for this is that -fuse-caller-save relies on the analysis of RTL code, but when profiling is active (with -pg option) the code is instrumented by adding a call to mcount function at the beginning of each function. And this is realized on the most platforms simply by fprintf function, so this instrumentation is not reflected in RTL code. The result is that bad code is produced. A solution could be to disable -fuse-caller-save when -pg is active. ...
[Bug rtl-optimization/64287] [5 Regression] Disable -fuse-caller-save when -pg is active
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64287 vries at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P1 Summary|Disable -fuse-caller-save |[5 Regression] Disable |when -pg is active |-fuse-caller-save when -pg ||is active
[Bug libstdc++/64288] New: libstdc++ testsuite not compatible with -fno-rtti or -fno-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64288 Bug ID: 64288 Summary: libstdc++ testsuite not compatible with -fno-rtti or -fno-exceptions Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: redi at gcc dot gnu.org In order to check that libstdc++ degrades nicely when used with -fno-rtti or -fno-exceptions it would be good if the testsuite ran cleanly with those options. Currently there is no way to disable tests that rely on RTTI or exceptions so maybe we want dg-require-rtti and dg-require-exceptions procs.
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265
Bernd Edlinger edlinger at gcc dot gnu.org changed:
What|Removed |Added
CC||edlinger at gcc dot gnu.org
--- Comment #5 from Bernd Edlinger edlinger at gcc dot gnu.org ---
Aehm, and if the function throws, the __tsan_func_exit is not
called either:
cat test2.cpp
struct my_class
{
my_class(){}
};
int test1(int x) throw(my_class)
{
throw my_class();
return x;
}
int
main()
{
for (int i=0; i1000; i++)
{
try
{
test1(i);
}
catch (my_class)
{
}
}
return 0;
}
g++ -g -fsanitize=thread test2.cpp
./a.out
= here we have another memory leak.
[Bug libstdc++/64276] would be better to use __cpp_exceptions rather than __EXCEPTIONS to determine whether exceptions are available
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64276 --- Comment #4 from Jonathan Wakely redi at gcc dot gnu.org --- Author: redi Date: Fri Dec 12 15:58:49 2014 New Revision: 218679 URL: https://gcc.gnu.org/viewcvs?rev=218679root=gccview=rev Log: PR libstdc++/64276 * doc/doxygen/user.cfg.in: Define __cpp_exceptions and __cpp_rtti. * doc/html/manual/using_exceptions.html: Regenerate. * doc/xml/manual/using_exceptions.xml: Use SD-6 feature-testing macros, __cpp_exceptions and __cpp_rtti, instead of __EXCEPTIONS and __GXX_RTTI. * include/bits/c++config: Likewise. * include/bits/locale_classes.tcc: Likewise. * include/bits/shared_ptr.h: Likewise. * include/bits/shared_ptr_base.h: Likewise. * include/debug/formatter.h: Likewise. * include/experimental/any: Likewise. * include/ext/rope: Likewise. * include/ext/ropeimpl.h: Likewise. * include/std/functional: Likewise. * include/tr1/functional: Likewise. * include/tr1/shared_ptr.h: Likewise. * libsupc++/eh_call.cc: Likewise. * libsupc++/eh_personality.cc: Likewise. * libsupc++/exception_defines.h: Likewise. * libsupc++/exception_ptr.h: Likewise. * libsupc++/guard.cc: Likewise. * libsupc++/pbase_type_info.cc: Likewise. * libsupc++/pointer_type_info.cc: Likewise. * libsupc++/vterminate.cc: Likewise. * src/c++11/thread.cc: Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/doc/doxygen/user.cfg.in trunk/libstdc++-v3/doc/html/manual/using_exceptions.html trunk/libstdc++-v3/doc/xml/manual/using_exceptions.xml trunk/libstdc++-v3/include/bits/c++config trunk/libstdc++-v3/include/bits/locale_classes.tcc trunk/libstdc++-v3/include/bits/shared_ptr.h trunk/libstdc++-v3/include/bits/shared_ptr_base.h trunk/libstdc++-v3/include/debug/formatter.h trunk/libstdc++-v3/include/experimental/any trunk/libstdc++-v3/include/ext/rope trunk/libstdc++-v3/include/ext/ropeimpl.h trunk/libstdc++-v3/include/std/functional trunk/libstdc++-v3/include/tr1/functional trunk/libstdc++-v3/include/tr1/shared_ptr.h trunk/libstdc++-v3/libsupc++/eh_call.cc trunk/libstdc++-v3/libsupc++/eh_personality.cc trunk/libstdc++-v3/libsupc++/exception_defines.h trunk/libstdc++-v3/libsupc++/exception_ptr.h trunk/libstdc++-v3/libsupc++/guard.cc trunk/libstdc++-v3/libsupc++/pbase_type_info.cc trunk/libstdc++-v3/libsupc++/pointer_type_info.cc trunk/libstdc++-v3/libsupc++/vterminate.cc trunk/libstdc++-v3/src/c++11/thread.cc
[Bug libstdc++/64276] would be better to use __cpp_exceptions rather than __EXCEPTIONS to determine whether exceptions are available
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64276 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Target Milestone|--- |5.0 --- Comment #5 from Jonathan Wakely redi at gcc dot gnu.org --- Done.
[Bug rtl-optimization/64287] [5 Regression] Disable -fuse-caller-save when -pg is active
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64287 --- Comment #1 from vries at gcc dot gnu.org --- AFAIK, Radovan (radovan.obrado...@imgtec.com) is working on this.
[Bug libstdc++/64241] make_exception_ptr returns garbage with -fno-exceptions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64241 Jonathan Wakely redi at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |5.0 --- Comment #2 from Jonathan Wakely redi at gcc dot gnu.org --- Not planning to backport this because using exception_ptr with -fno-exceptions is probably not important to anyone.
[Bug sanitizer/64289] New: ICE with -fsanitize=float-cast-overflow
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64289
Bug ID: 64289
Summary: ICE with -fsanitize=float-cast-overflow
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: sanitizer
Assignee: jakub at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org,
mpolacek at gcc dot gnu.org
/* { dg-do compile } */
/* { dg-options -fsanitize=float-cast-overflow } */
int
foo (int a)
{
return (int) (0 ? 0 : a ? a : 0.5);
}
ICEs when compiled as C, because save_expr must not be used until c_fully_fold.
Unfortunately as convert.c is shared by all FEs, it can't call c_save_expr
instead. So, either we'd need to turn it into a langhook, or we need a
workaround in c-convert.c like we've done already for the other save_expr in
convert.c case.
[Bug rtl-optimization/64287] [5 Regression] Disable -fuse-caller-save when -pg is active
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64287 vries at gcc dot gnu.org changed: What|Removed |Added Keywords||patch CC||law at gcc dot gnu.org --- Comment #2 from vries at gcc dot gnu.org --- STATUS patch: https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01829.html approval with question on testing: https://gcc.gnu.org/ml/gcc-patches/2014-11/msg02162.html
[Bug sanitizer/64289] ICE with -fsanitize=float-cast-overflow
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64289 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2014-12-12 Target Milestone|--- |5.0 Ever confirmed|0 |1
[Bug c++/60691] Build fails in libstdc++ with --enable-sjlj-exceptions on ARM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60691 --- Comment #8 from Ramana Radhakrishnan ramana at gcc dot gnu.org --- (In reply to Fabian Vogt from comment #6) If sjlj exceptions are not supported for ARM, shouldn't the configure option be invalid for ARM or at least print a warning? If an option does exist and it simply crashes the compiler during make, it's definitely broken and must be removed. If that were a user option then yes, I agree. If folks are building their own toolchains, they should know what they are doing and not just use options because they think it may just work willy-nilly.
[Bug sanitizer/59302] tsan: Unexpected mmap in InternalAllocator!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59302 Dmitry Vyukov dvyukov at google dot com changed: What|Removed |Added CC||dvyukov at google dot com --- Comment #4 from Dmitry Vyukov dvyukov at google dot com --- The referenced issue https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59194 is marked as fixed. I propose to fix this issue, but I don't see an option to change status.
[Bug sanitizer/59410] tsan tests fail with address randomization disabled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59410 Dmitry Vyukov dvyukov at google dot com changed: What|Removed |Added CC||dvyukov at google dot com --- Comment #34 from Dmitry Vyukov dvyukov at google dot com --- I propose to close this as obsolete. Or does somebody see any actionable items here? Non-pie binaries are supported by tsan now. Non-aslr (0x5) are not.
[Bug sanitizer/64289] ICE with -fsanitize=float-cast-overflow
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64289 --- Comment #1 from Jakub Jelinek jakub at gcc dot gnu.org --- Created attachment 34267 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34267action=edit gcc5-pr64289.patch Untested fix.
[Bug fortran/64290] New: Destructor not called at deallocation of LHS
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64290 Bug ID: 64290 Summary: Destructor not called at deallocation of LHS Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: baradi09 at gmail dot com Created attachment 34268 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34268action=edit Self contained source demonstrating During an assingment with an allocatable type on both, the LHS and the RHS, the destructor of the LHS-type is not called. IMHO, this is erroneous behaviour as the LHS gets (hopfully) deallocated on the assignment.
[Bug c++/61402] [5 Regression][C++1y] Init-capture with side effect not working for some types
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61402 --- Comment #4 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Fri Dec 12 16:43:16 2014 New Revision: 218680 URL: https://gcc.gnu.org/viewcvs?rev=218680root=gccview=rev Log: PR c++/61402 * lambda.c (add_capture): Don't pass a dependent type to variably_modified_type_p. Added: trunk/gcc/testsuite/g++.dg/cpp1y/lambda-init11.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/lambda.c
[Bug sanitizer/59410] tsan tests fail with address randomization disabled
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59410 H.J. Lu hjl.tools at gmail dot com changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |WONTFIX --- Comment #35 from H.J. Lu hjl.tools at gmail dot com --- Binutils 2.25 will mark PIE with non-zero load address as executable so that any kernel will load it at specified address.
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265 --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org --- Seems there are more such spots that insert stmts at gsi_after_labels of single_succ of entry block - e.g. ipa-split.c, omp-low.c, tree-inline.c, tree-into-ssa.c, tree-profile.c, tree-ssa-reassoc.c at least. I'll take care of tsan.c.
[Bug c++/63996] Infinite loop in invalid C++14 constexpr fn
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63996 --- Comment #1 from Kai Tietz ktietz at gcc dot gnu.org --- Author: ktietz Date: Fri Dec 12 17:14:54 2014 New Revision: 218682 URL: https://gcc.gnu.org/viewcvs?rev=218682root=gccview=rev Log: PR c++/63996 * constexpr.c (cxx_eval_loop_expr): Don't loop endless on none-constant expression. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/constexpr.c
[Bug c++/63996] Infinite loop in invalid C++14 constexpr fn
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63996 --- Comment #2 from Kai Tietz ktietz at gcc dot gnu.org --- Author: ktietz Date: Fri Dec 12 17:17:58 2014 New Revision: 218683 URL: https://gcc.gnu.org/viewcvs?rev=218683root=gccview=rev Log: PR c++/63996 * g++.dg/cpp1y/pr63996.C: New file. Added: trunk/gcc/testsuite/g++.dg/cpp1y/pr63996.C Modified: trunk/gcc/testsuite/ChangeLog
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265 --- Comment #7 from Jakub Jelinek jakub at gcc dot gnu.org --- Note, I don't see any kind of memory leak on any of the testcases. Sure, calling __tsan_func_entry many times is of course wrong. As for #c5, clang doesn't call __tsan_func_exit in that case either. Dmitry? If we were to call it even for exceptions, I'm afraid expanding this in tsan pass is too late, we'd need to add the __tsan_func_exit call say during gimplification as a cleanup of the whole body and then EH code would take care of adding the needed landing pads etc. But libtsan e.g. wraps longjmp and pops frames in there, not sure if it doesn't do something similar for exceptions already.
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265 Dmitry Vyukov dvyukov at google dot com changed: What|Removed |Added CC||dvyukov at google dot com --- Comment #8 from Dmitry Vyukov dvyukov at google dot com --- Exceptions are currently unsupported by tsan. Yes, we can do either what we do in longjmp if it's possible to figure out the landing frame in runtime, or add __tsan_func_exit to cleanup statements for each function in compiler (obviously simpler for runtime, but more complex for compiler). I don't know what is simpler and what is exceptions ABI. Is it possible to do what we do for longjmp for exceptions? There is an issue for this in tsan tracker: https://code.google.com/p/thread-sanitizer/issues/detail?id=78
[Bug middle-end/64246] [5 Regression] ICE building libada for Windows due to NULL loop header
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64246 --- Comment #3 from Eric Botcazou ebotcazou at gcc dot gnu.org --- Created attachment 34269 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34269action=edit Concatenated testcase To be gnatchop-ed and compile at -O.
[Bug go/61307] gccgo: ICE in Create_function_descriptors::expression [GoSmith]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61307 Chris Manghane cmang at google dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #2 from Chris Manghane cmang at google dot com --- Unable to resolve.
[Bug sanitizer/64265] [5 Regression] r217669 broke tsan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265 --- Comment #9 from Jakub Jelinek jakub at gcc dot gnu.org --- Doing it in gimplify_function_tree is pretty straightforward, after all, we already have there code to handle if (flag_instrument_function_entry_exit !DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (fndecl) !flag_instrument_functions_exclude_p (fndecl)) which does very similar thing - on entry add a call to one function with address of current function and __builtin_return_address (0), on exit (including exit through exceptions) another call with the same arguments. So, the question is just if you want to do it that way...
[Bug rtl-optimization/64291] New: [5 Regression] Miscompile t-div in GMP's testsuite
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64291
Bug ID: 64291
Summary: [5 Regression] Miscompile t-div in GMP's testsuite
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: glisse at gcc dot gnu.org
In the following code, on x86_64-unknown-linux-gnu, we should call g(0,8,16),
but we somehow end up calling g(0,16,16). The most suspicious dump is
marc.c.228r.postreload.
$ gcc-4.9 -O2 marc.c f.c ./a.out
$ gcc-5 -O2 marc.c f.c ./a.out
a.out: f.c:3: g: Assertion `a==8' failed.
zsh: abort ./a.out
$ cat f.c
#include assert.h
void f(void*p,...){}
void g(void*p,long a,long b){assert(a==8);}
$ cat marc.c
void f(void*,...);
void g(void*,long,long);
int nnn=0;
long test=0;
typedef struct
{
int _mp_size;
unsigned long *_mp_d;
} __mpz_struct;
typedef __mpz_struct mpz_t[1];
int main ()
{
mpz_t n, d;
long nn, dn;
unsigned long *np, *dup, *dnp, *qp;
long alloc, itch;
f (n);
f (d);
qp = (unsigned long*)__builtin_alloca(4099*8) + 1;
dnp = (unsigned long*)__builtin_alloca (2049*8);
alloc = 1;
for (test = 0; test 1; test++)
{
dn = d-_mp_size;
dup = d-_mp_d;
f (dnp, dup, dn);
dnp[dn - 1] |= 1UL63;
f (0);
nn = nnn;
np = n-_mp_d;
qp[-1] = -757136820;
qp[nn - dn + 1] = 14883681;
f (0);
if (dn = 6)
f (0);
itch = nn + 1;
if (itch + 1 alloc)
{
g(0,alloc*8,(itch+1)*8);
alloc = itch + 1;
}
f (np, nn);
}
return 0;
}
