Bug#780718: return in ?:-operator with function calls is incorrectly optimized
Package: g++
Version: 4:4.7.2-1
Severity: normal
Hi,
while testing apt with gcc-5 suite I noticed that while it compiles just
fine, the resulting binaries produce incorrect results failing our
integration tests (which aren't run at package buildtime, so this wasn't
detected in the gcc-5 mass-rebuild).
While trying to come up with a smaller testcase I noticed¹ that with
a slight variation even the g++-4.x series² emits the same strange
results… clang on the other hand produces the expected results, neither
of them generates any warnings about the code.
Attached is as far as I got in terms of a testcase. Still depends on
libapt as if I make the method directly available everything is fine…
The results I get are:
$ g++ -Wall -Wextra -O0 -lapt-pkg /tmp/test.cc -o /tmp/test && /tmp/test
amd64
i386
armel
$ g++ -Wall -Wextra -O2 -lapt-pkg /tmp/test.cc -o /tmp/test && /tmp/test
amd64,i386,armel
Obviously, I would expect the same result with/without optimization.
Doing the suggested modification in getDefaultVector() gets the g++-4.x
series to produce the expected results. g++-5 still emits the results
from above (this is a closer representation of the code in apt, which
is why this hasn't happend before in apt).
Note that getDefaultVector() is called in the false branch of the ?:
operator, but that should never happen as the expression evaluates to
true. This seems to nugde the return type optimization in the wrong
direction through…
Note also that the value of the vector isn't the value of either of the
branches of the ?: operator, but is equal to the first argument of the
method called in the true branch.
If the ?: is replaced with an if-else block everything is fine.
(which is what I am gonna do – way too complicated for an ?: …)
Note Note: I am really bad at guessing and I tend to dislike
bugreporters who do it myself, but I couldn't help it…
The subject being the biggest offender really…
So take everything I just noted with at least a bit of salt.
Best regards
David Kalnischkies
¹ with the help of Julien Cristau and Helmut Grohne
² 4.x series tested in a wheezy chroot, hence the 4:4.7.2-1 version tag
// g++ -Wall -Wextra -O0 -lapt-pkg /tmp/test.cc -o /tmp/test && /tmp/test
// g++ -Wall -Wextra -O2 -lapt-pkg /tmp/test.cc -o /tmp/test && /tmp/test
#include
#include
#include
#include
#include
/* method code for reference
vector VectorizeString(string const &haystack, char const &split)
{
vector exploded;
if (haystack.empty() == true)
return exploded;
string::const_iterator start = haystack.begin();
string::const_iterator end = start;
do {
for (; end != haystack.end() && *end != split; ++end);
exploded.push_back(string(start, end));
start = end + 1;
} while (end != haystack.end() && (++end) != haystack.end());
return exploded;
}
//*/
std::vector getDefaultVector() {
std::vector r; // broken g++-4.x & g++-5
//static std::vector r; // just g++-5
return r;
}
void parseOptions(std::map const &Options, std::string const &field) {
std::map::const_iterator arch = Options.find(field);
std::vector Archs =
(arch != Options.end()) ? VectorizeString(arch->second, ',') :
getDefaultVector(); // <- never called, but method content effects result
for (std::vector::const_iterator a = Archs.begin(); a != Archs.end(); ++a)
std::cout << *a << std::endl;
}
int main() {
std::map Options;
Options["a"] = "amd64,i386,armel";
parseOptions(Options, "a");
return 0;
}
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Results for 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) testsuite on aarch64-unknown-linux-gnu
LAST_UPDATED: Mon Mar 16 23:07:46 UTC 2015 (revision 221466) Native configuration is aarch64-unknown-linux-gnu === boehm-gc tests === Running target unix === boehm-gc Summary for unix === # of expected passes12 # of unsupported tests 1 Running target unix/-fstack-protector === boehm-gc Summary for unix/-fstack-protector === # of expected passes12 # of unsupported tests 1 === boehm-gc Summary === # of expected passes24 # of unsupported tests 2 === libatomic tests === Running target unix === libatomic Summary for unix === # of expected passes54 Running target unix/-fstack-protector === libatomic Summary for unix/-fstack-protector === # of expected passes54 === libatomic Summary === # of expected passes108 === libffi tests === Running target unix === libffi Summary for unix === # of expected passes2214 Running target unix/-fstack-protector === libffi Summary for unix/-fstack-protector === # of expected passes2214 === libffi Summary === # of expected passes4428 === libgo tests === Running target unix FAIL: math FAIL: runtime/pprof === libgo Summary === # of expected passes122 # of unexpected failures2 /build/gcc-5-36uF92/gcc-5-5-20150316/build/./gcc/gccgo version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === libgomp tests === Running target unix WARNING: program timed out. FAIL: libgomp.graphite/force-parallel-6.c execution test === libgomp Summary for unix === # of expected passes5756 # of unexpected failures1 # of unsupported tests 280 Running target unix/-fstack-protector WARNING: program timed out. FAIL: libgomp.graphite/force-parallel-6.c execution test === libgomp Summary for unix/-fstack-protector === # of expected passes5756 # of unexpected failures1 # of unsupported tests 280 === libgomp Summary === # of expected passes11512 # of unexpected failures2 # of unsupported tests 560 === libitm tests === Running target unix === libitm Summary for unix === # of expected passes26 # of expected failures 3 # of unsupported tests 1 Running target unix/-fstack-protector === libitm Summary for unix/-fstack-protector === # of expected passes26 # of expected failures 3 # of unsupported tests 1 === libitm Summary === # of expected passes52 # of expected failures 6 # of unsupported tests 2 === libjava tests === Running target unix === libstdc++ tests === Running target unix FAIL: 22_locale/numpunct/members/char/3.cc execution test FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test === libstdc++ Summary for unix === # of expected passes10215 # of unexpected failures2 # of expected failures 65 # of unsupported tests 263 Running target unix/-fstack-protector FAIL: 22_locale/numpunct/members/char/3.cc execution test FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test XPASS: 26_numerics/headers/cmath/c_math.cc execution test === libstdc++ Summary for unix/-fstack-protector === # of expected passes4333 # of unexpected failures2 # of unexpected successes 1 # of expected failures 61 # of unsupported tests 263 === libstdc++ Summary === # of expected passes14548 # of unexpected failures4 # of unexpected successes 1 # of expected failures 126 # of unsupported tests 526 Target: aarch64-linux-gnu gcc version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === g++ tests === Running target unix FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix === # of expected passes86818 # of unexpected failures3 # of unexpected successes 2 # of expected failures 342 # of unsupported tests 3886 Running target unix/-fstack-protector FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 F
Results for 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) testsuite on s390x-ibm-linux-gnu
LAST_UPDATED: Mon Mar 16 23:07:46 UTC 2015 (revision 221466) Target: s390x-linux-gnu gcc version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) Native configuration is s390x-ibm-linux-gnu === g++ tests === Running target unix FAIL: g++.dg/init/const9.C -std=c++11 scan-assembler-not rodata FAIL: g++.dg/init/const9.C -std=c++14 scan-assembler-not rodata FAIL: g++.dg/init/const9.C -std=c++98 scan-assembler-not rodata FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix === # of expected passes84032 # of unexpected failures6 # of unexpected successes 2 # of expected failures 283 # of unsupported tests 3555 Running target unix/-fstack-protector FAIL: g++.dg/init/const9.C -std=c++11 scan-assembler-not rodata FAIL: g++.dg/init/const9.C -std=c++14 scan-assembler-not rodata FAIL: g++.dg/init/const9.C -std=c++98 scan-assembler-not rodata FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix/-fstack-protector === # of expected passes84032 # of unexpected failures6 # of unexpected successes 2 # of expected failures 283 # of unsupported tests 3555 === g++ Summary === # of expected passes168064 # of unexpected failures12 # of unexpected successes 4 # of expected failures 566 # of unsupported tests 7110 /build/gcc-5-IFH8Zs/gcc-5-5-20150316/build/gcc/testsuite/g++/../../xg++ version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === gcc tests === Running target unix XPASS: gcc.dg/guality/example.c -O0 execution test XPASS: gcc.dg/guality/example.c -O1 execution test XPASS: gcc.dg/guality/example.c -O2 execution test XPASS: gcc.dg/guality/example.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/guality.c -O0 execution test XPASS: gcc.dg/guality/guality.c -O1 execution test XPASS: gcc.dg/guality/guality.c -O2 execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test XPASS: gcc.dg/guality/guality.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/guality.c -O3 -g execution test XPASS: gcc.dg/guality/guality.c -Os execution test XPASS: gcc.dg/guality/inline-params.c -O2 execution test XPASS: gcc.dg/guality/inline-params.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/inline-params.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/inline-params.c -O3 -g execution test XPASS: gcc.dg/guality/inline-params.c -Os execution test FAIL: gcc.dg/guality/pr36728-2.c -O2 line 18 *x == (char) 25 FAIL: gcc.dg/guality/pr36728-2.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 18 *x == (char) 25 FAIL: gcc.dg/guality/pr36728-2.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 18 *x == (char) 25 FAIL: gcc.dg/guality/pr36728-2.c -O3 -fomit-frame-pointer line 18 *x == (char) 25 FAIL: gcc.dg/guality/pr36728-2.c -O3 -g line 18 *x == (char) 25 FAIL: gcc.dg/guality/pr36728-2.c -Os line 18 *x == (char) 25 XPASS: gcc.dg/guality/pr41353-1.c -O0 line 28 j == 28 + 37 FAIL: gcc.dg/guality/pr41404-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 10 *foo == 'f' FAIL: gcc.dg/guality/pr41404-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 14 *foo == 'b' FAIL: gcc.dg/guality/pr41404-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 24 *foo == 'f' FAIL: gcc.dg/guality/pr41616-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test FAIL: gcc.dg/guality/pr43051-1.c -O1 line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O1 line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 35 v == 1 FAIL: gcc.dg
Results for 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) testsuite on i586-pc-linux-gnu
LAST_UPDATED: Mon Mar 16 23:07:46 UTC 2015 (revision 221466) Target: i586-linux-gnu gcc version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) Native configuration is i586-pc-linux-gnu === g++ tests === Running target unix FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -O3 -ftree-vectorize -fcilkplus -g execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -g -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -O3 -ftree-vectorize -fcilkplus -g execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -g -O3 -fcilkplus execution test FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix === # of expected passes91480 # of unexpected failures9 # of unexpected successes 2 # of expected failures 339 # of unsupported tests 3368 Running target unix/-fstack-protector FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -O3 -ftree-vectorize -fcilkplus -g execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_custom_tplt.cc -g -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -O3 -fcilkplus execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -O3 -ftree-vectorize -fcilkplus -g execution test FAIL: g++.dg/cilk-plus/AN/builtin_fn_mutating_tplt.cc -g -O3 -fcilkplus execution test FAIL: g++.dg/fstack-protector-strong.C -std=gnu++11 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/fstack-protector-strong.C -std=gnu++14 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/fstack-protector-strong.C -std=gnu++98 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix/-fstack-protector === # of expected passes91477 # of unexpected failures12 # of unexpected successes 2 # of expected failures 339 # of unsupported tests 3368 === g++ Summary === # of expected passes182957 # of unexpected failures21 # of unexpected successes 4 # of expected failures 678 # of unsupported tests 6736 /build/gcc-5-qxAzhM/gcc-5-5-20150316/build/gcc/testsuite/g++/../../xg++ version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === gcc tests === Running target unix FAIL: gcc.dg/pr45352-1.c (test for excess errors) FAIL: gcc.dg/pr63914.c (test for excess errors) FAIL: gcc.dg/graphite/vect-pr43423.c scan-tree-dump-times vect "vectorized 2 loops" 1 XPASS: gcc.dg/guality/example.c -O0 execution test XPASS: gcc.dg/guality/example.c -O1 execution test XPASS: gcc.dg/guality/guality.c -O0 execution test XPASS: gcc.dg/guality/guality.c -O1 execution test XPASS: gcc.dg/guality/guality.c -O2 execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test XPASS: gcc.dg/guality/guality.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/guality.c -O3 -g execution test XPASS: gcc.dg/guality/guality.c -Os execution test XPASS: gcc.dg/guality/inline-params.c -O2 execution test XPASS: gcc.dg/guality/inline-params.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/inline-params.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/inline-params.c -O3 -g execution test XPASS: gcc.dg/guality/inline-params.c -Os execution test XPASS: gcc.dg/guality/pr41353-1.c -O0 line 28 j == 28 + 37 XPASS: gcc.dg/guality/pr41353-1.c -Os line 28 j == 28 + 37 FAIL: gcc.dg/guality/pr41447-1.c -O2 execution test FAIL: gcc.dg/guality/pr41447-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test FAIL: gcc.dg/guality/pr41447-1.c -O3 -fomit-frame-pointer execution test FAIL: gcc.dg/guality/pr41447-1.c -O3 -g execution test FAIL: gcc.dg/guality/pr41616-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test FAI
Results for 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) testsuite on x86_64-pc-linux-gnu
LAST_UPDATED: Mon Mar 16 23:07:46 UTC 2015 (revision 221466) Target: x86_64-linux-gnu gcc version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) Native configuration is x86_64-pc-linux-gnu === g++ tests === Running target unix FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix === # of expected passes93033 # of unexpected failures3 # of unexpected successes 2 # of expected failures 339 # of unsupported tests 3625 Running target unix/-fstack-protector FAIL: g++.dg/fstack-protector-strong.C -std=gnu++11 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/fstack-protector-strong.C -std=gnu++14 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/fstack-protector-strong.C -std=gnu++98 scan-assembler-times stack_chk_fail 7 FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -fomit-frame-pointer line 23 p == 40 FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40 XPASS: g++.dg/tls/thread_local-order2.C -std=c++11 execution test XPASS: g++.dg/tls/thread_local-order2.C -std=c++14 execution test === g++ Summary for unix/-fstack-protector === # of expected passes93030 # of unexpected failures6 # of unexpected successes 2 # of expected failures 339 # of unsupported tests 3625 === g++ Summary === # of expected passes186063 # of unexpected failures9 # of unexpected successes 4 # of expected failures 678 # of unsupported tests 7250 /build/gcc-5-U5lTxB/gcc-5-5-20150316/build/gcc/testsuite/g++/../../xg++ version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === gcc tests === Running target unix FAIL: gcc.dg/graphite/vect-pr43423.c scan-tree-dump-times vect "vectorized 2 loops" 1 XPASS: gcc.dg/guality/example.c -O0 execution test XPASS: gcc.dg/guality/example.c -O1 execution test XPASS: gcc.dg/guality/example.c -O2 execution test XPASS: gcc.dg/guality/example.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/guality.c -O0 execution test XPASS: gcc.dg/guality/guality.c -O1 execution test XPASS: gcc.dg/guality/guality.c -O2 execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/guality.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test XPASS: gcc.dg/guality/guality.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/guality.c -O3 -g execution test XPASS: gcc.dg/guality/guality.c -Os execution test XPASS: gcc.dg/guality/inline-params.c -O2 execution test XPASS: gcc.dg/guality/inline-params.c -O2 -flto -fno-use-linker-plugin -flto-partition=none execution test XPASS: gcc.dg/guality/inline-params.c -O3 -fomit-frame-pointer execution test XPASS: gcc.dg/guality/inline-params.c -O3 -g execution test XPASS: gcc.dg/guality/inline-params.c -Os execution test XPASS: gcc.dg/guality/pr41353-1.c -O0 line 28 j == 28 + 37 FAIL: gcc.dg/guality/pr41616-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test FAIL: gcc.dg/guality/pr43051-1.c -O2 line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 line 36 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O2 line 39 c == &a[0] FAIL: gcc.dg/guality/pr43051-1.c -O2 line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 line 41 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 36 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 39 c == &a[0] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none line 41 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 35 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 36 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 39 c == &a[0] FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 40 v == 1 FAIL: gcc.dg/guality/pr43051-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects line 41 e == &a[1] FAIL: gcc.dg/guality/pr43051-1.c -O3 -fomit-frame-p
Results for 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) testsuite on arm-unknown-linux-gnueabi
LAST_UPDATED: Mon Mar 16 23:07:46 UTC 2015 (revision 221466) Native configuration is arm-unknown-linux-gnueabi === boehm-gc tests === Running target unix === boehm-gc Summary === # of expected passes12 # of unsupported tests 1 === libatomic tests === Running target unix === libatomic Summary === # of expected passes44 # of unsupported tests 5 === libffi tests === Running target unix FAIL: libffi.call/cls_16byte.c -W -Wall -Wno-psabi -O2 output pattern test, is 7 8 9 1 9 3: 8 17 12 FAIL: libffi.call/cls_16byte.c -W -Wall -Wno-psabi -O3 output pattern test, is 7 8 9 1 9 3: 8 17 12 FAIL: libffi.call/cls_16byte.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer output pattern test, is 7 8 9 1 9 3: 8 17 12 FAIL: libffi.call/cls_20byte1.c -W -Wall -Wno-psabi -O3 output pattern test, is 1 2 3 4 5 7: 5 7 10 FAIL: libffi.call/cls_9byte1.c -W -Wall -Wno-psabi -O2 output pattern test, is 7 8 1 9: 8 17 FAIL: libffi.call/cls_9byte1.c -W -Wall -Wno-psabi -O3 output pattern test, is 7 8 1 9: 8 17 FAIL: libffi.call/cls_9byte1.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer output pattern test, is 7 8 1 9: 8 17 FAIL: libffi.call/nested_struct.c -W -Wall -Wno-psabi -O3 output pattern test, is 9 2 6 1 2 3 4 5 6 3 1 8: 15 10 13 10 12 13 FAIL: libffi.call/nested_struct1.c -W -Wall -Wno-psabi -O3 output pattern test, is 9 2 6 1 2 3 4 5 6 3 1 8 3 2 4: 15 10 13 10 12 13 === libffi Summary === # of expected passes2205 # of unexpected failures9 === libgo tests === Running target unix FAIL: bufio FAIL: bytes FAIL: errors FAIL: expvar FAIL: flag FAIL: fmt FAIL: html FAIL: image FAIL: io FAIL: log FAIL: math FAIL: mime FAIL: net FAIL: os FAIL: path FAIL: reflect FAIL: regexp FAIL: runtime FAIL: sort FAIL: strconv FAIL: strings FAIL: sync FAIL: syscall FAIL: time FAIL: unicode FAIL: archive/tar FAIL: archive/zip FAIL: compress/bzip2 FAIL: compress/flate FAIL: compress/gzip FAIL: compress/lzw FAIL: compress/zlib FAIL: container/heap FAIL: container/list FAIL: container/ring FAIL: crypto/aes FAIL: crypto/cipher FAIL: crypto/des FAIL: crypto/dsa FAIL: crypto/ecdsa FAIL: crypto/elliptic FAIL: crypto/hmac FAIL: crypto/md5 FAIL: crypto/rand FAIL: crypto/rc4 FAIL: crypto/rsa FAIL: crypto/sha1 FAIL: crypto/sha256 FAIL: crypto/sha512 FAIL: crypto/subtle FAIL: crypto/tls FAIL: crypto/x509 FAIL: database/sql FAIL: database/sql/driver FAIL: debug/dwarf FAIL: debug/elf FAIL: debug/macho FAIL: debug/pe FAIL: debug/plan9obj FAIL: encoding/ascii85 FAIL: encoding/asn1 FAIL: encoding/base32 FAIL: encoding/base64 FAIL: encoding/binary FAIL: encoding/csv FAIL: encoding/gob FAIL: encoding/hex FAIL: encoding/json FAIL: encoding/pem FAIL: encoding/xml FAIL: exp/proxy FAIL: exp/terminal FAIL: html/template FAIL: go/ast FAIL: go/doc FAIL: go/format FAIL: go/parser FAIL: go/printer FAIL: go/scanner FAIL: go/token FAIL: hash/adler32 FAIL: hash/crc32 FAIL: hash/crc64 FAIL: hash/fnv FAIL: image/color FAIL: image/draw FAIL: image/jpeg FAIL: image/png FAIL: index/suffixarray FAIL: io/ioutil FAIL: log/syslog FAIL: math/big FAIL: math/cmplx FAIL: math/rand FAIL: mime/multipart FAIL: net/http FAIL: net/http/cgi FAIL: net/http/cookiejar FAIL: net/http/fcgi FAIL: net/http/httptest FAIL: net/http/httputil FAIL: net/http/internal FAIL: net/mail FAIL: net/rpc FAIL: net/smtp FAIL: net/textproto FAIL: net/url FAIL: net/rpc/jsonrpc FAIL: old/regexp FAIL: old/template FAIL: os/exec FAIL: os/signal FAIL: os/user FAIL: path/filepath FAIL: regexp/syntax FAIL: runtime/pprof FAIL: sync/atomic FAIL: text/scanner FAIL: text/tabwriter FAIL: text/template FAIL: text/template/parse FAIL: testing/quick FAIL: unicode/utf16 FAIL: unicode/utf8 === libgo Summary === # of unexpected failures124 /build/gcc-5-ffqiHD/gcc-5-5-20150316/build/./gcc/gccgo version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === libgomp tests === Running target unix === libgomp Summary === # of expected passes5757 # of unsupported tests 280 === libjava tests === Running target unix === libstdc++ tests === Running target unix FAIL: 17_intro/headers/c++1998/all_attributes.cc (test for excess errors) FAIL: 17_intro/headers/c++200x/all_attributes.cc (test for excess errors) FAIL: 17_intro/headers/c++2014/all_attributes.cc (test for excess errors) FAIL: 22_locale/numpunct/members/char/3.cc execution test FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test === libstdc++ Summary === # of expected passes9991 # of unexpected failures5 # of expected failures 65 # of unsupported tests 373 Target: arm-linux-gnueabi gcc version 5.0.0 20150316 (experimental) [trunk revision 221466] (Debian 5-20150316-1) === g
Bug#765379: gcc-4.7 should not ship with jessie
Hi, this was a bad one; gcc-4.9-base from jessie breaks gcc-4.7-base from wheezy, so you had to update gcc-4.7-base to jessie/unstable for a stable/testing mix as soon as some package required gcc-4.9-base from testing. For now using gcc-4.7-base from unstable seems to work; wheezy/jessie mix is broken otherwise. regards, Stefan -- To UNSUBSCRIBE, email to debian-gcc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150318194939.42e161a1@chromobil.localdomain
