[Bug tree-optimization/79276] [7 Regression] ICE: Segmentation fault in VRP pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79276 --- Comment #2 from Markus Trippelsdorf --- Probably started with Richi's r244974.
[Bug tree-optimization/79276] [7 Regression] ICE: Segmentation fault in VRP pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79276 Markus Trippelsdorf changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2017-01-30 CC||trippels at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Markus Trippelsdorf --- ==24058== Invalid read of size 8 ==24058==at 0xE336B0: process_assert_insertions (tree-vrp.c:6535) ==24058==by 0xE336B0: insert_range_assertions (tree-vrp.c:6634) ==24058==by 0xE336B0: execute_vrp (tree-vrp.c:11367) ==24058==by 0xE336B0: (anonymous namespace)::pass_vrp::execute(function*) (tree-vrp.c:11465) ==24058==by 0xABA382: execute_one_pass(opt_pass*) (passes.c:2465) ==24058==by 0xABAC70: execute_pass_list_1(opt_pass*) (passes.c:2554) ==24058==by 0xABAC82: execute_pass_list_1(opt_pass*) (passes.c:2555) ==24058==by 0xABACCC: execute_pass_list(function*, opt_pass*) (passes.c:2565) ==24058==by 0x780C8C: cgraph_node::expand() (cgraphunit.c:2036) ==24058==by 0x78243B: expand_all_functions (cgraphunit.c:2172) ==24058==by 0x78243B: symbol_table::compile() [clone .part.51] (cgraphunit.c:2529) ==24058==by 0x784B64: compile (cgraphunit.c:2622) ==24058==by 0x784B64: symbol_table::finalize_compilation_unit() (cgraphunit.c:2619) ==24058==by 0xB98CC2: compile_file() (toplev.c:488) ==24058==by 0x5D6919: do_compile (toplev.c:1983) ==24058==by 0x5D6919: toplev::main(int, char**) (toplev.c:2117) ==24058==by 0x5D8B9D: main (main.c:39) ==24058== Address 0x5585348 is 8 bytes inside a block of size 72 free'd ==24058==at 0x402FE2B: free (vg_replace_malloc.c:530) ==24058==by 0xE34550: process_assert_insertions (tree-vrp.c:6547) ==24058==by 0xE34550: insert_range_assertions (tree-vrp.c:6634) ==24058==by 0xE34550: execute_vrp (tree-vrp.c:11367) ==24058==by 0xE34550: (anonymous namespace)::pass_vrp::execute(function*) (tree-vrp.c:11465) ==24058==by 0xABA382: execute_one_pass(opt_pass*) (passes.c:2465) ==24058==by 0xABAC70: execute_pass_list_1(opt_pass*) (passes.c:2554) ==24058==by 0xABAC82: execute_pass_list_1(opt_pass*) (passes.c:2555) ==24058==by 0xABACCC: execute_pass_list(function*, opt_pass*) (passes.c:2565) ==24058==by 0x780C8C: cgraph_node::expand() (cgraphunit.c:2036) ==24058==by 0x78243B: expand_all_functions (cgraphunit.c:2172) ==24058==by 0x78243B: symbol_table::compile() [clone .part.51] (cgraphunit.c:2529) ==24058==by 0x784B64: compile (cgraphunit.c:2622) ==24058==by 0x784B64: symbol_table::finalize_compilation_unit() (cgraphunit.c:2619) ==24058==by 0xB98CC2: compile_file() (toplev.c:488) ==24058==by 0x5D6919: do_compile (toplev.c:1983) ==24058==by 0x5D6919: toplev::main(int, char**) (toplev.c:2117) ==24058==by 0x5D8B9D: main (main.c:39) ==24058== Block was alloc'd at ==24058==at 0x402EBAF: malloc (vg_replace_malloc.c:299) ==24058==by 0x143B3E7: xmalloc (xmalloc.c:147) ==24058==by 0xE1E3B9: register_new_assert_for(tree_node*, tree_node*, tree_code, tree_node*, basic_block_def*, edge_def*, gimple_stmt_iterator) (tree-vrp.c:5045) ==24058==by 0xE30E36: register_edge_assert_for_1(tree_node*, tree_code, edge_def*, gimple_stmt_iterator) (tree-vrp.c:5755) ==24058==by 0xE313E1: register_edge_assert_for(tree_node*, edge_def*, gimple_stmt_iterator, tree_code, tree_node*, tree_node*) (tree-vrp.c:5885) ==24058==by 0xE32836: find_conditional_asserts (tree-vrp.c:5923) ==24058==by 0xE32836: find_assert_locations_1 (tree-vrp.c:6187) ==24058==by 0xE32836: find_assert_locations() (tree-vrp.c:6348) ==24058==by 0xE333CE: insert_range_assertions (tree-vrp.c:6631) ==24058==by 0xE333CE: execute_vrp (tree-vrp.c:11367) ==24058==by 0xE333CE: (anonymous namespace)::pass_vrp::execute(function*) (tree-vrp.c:11465) ==24058==by 0xABA382: execute_one_pass(opt_pass*) (passes.c:2465) ==24058==by 0xABAC70: execute_pass_list_1(opt_pass*) (passes.c:2554) ==24058==by 0xABAC82: execute_pass_list_1(opt_pass*) (passes.c:2555) ==24058==by 0xABACCC: execute_pass_list(function*, opt_pass*) (passes.c:2565) ==24058==by 0x780C8C: cgraph_node::expand() (cgraphunit.c:2036)
[Bug tree-optimization/79276] New: [7 Regression] ICE: Segmentation fault in VRP pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79276
Bug ID: 79276
Summary: [7 Regression] ICE: Segmentation fault in VRP pass
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-7.0.0-alpha20170129 snapshot ICEs when compiling the following snippet w/
-O2, -Os, -O3, or -Ofast and glibc malloc()/free() usage checking machinery
enabled:
short int
ix (int *ld, short int oi)
{
*ld = ((unsigned short int)oi | oi) && !!(*ld);
return (oi != 0) ? oi : 1;
}
% MALLOC_PERTURB_=1 x86_64-pc-linux-gnu-gcc-7.0.0-alpha20170129 -O2 -c
w7o4f2we.c
w7o4f2we.c: In function 'ix':
w7o4f2we.c:2:1: internal compiler error: Segmentation fault
ix (int *ld, short int oi)
^~
Program received signal SIGSEGV, Segmentation fault.
0x00e38092 in (anonymous namespace)::pass_vrp::execute(function*) ()
(gdb) where
#0 0x00e38092 in (anonymous namespace)::pass_vrp::execute(function*)
()
#1 0x00ac0811 in execute_one_pass(opt_pass*) ()
#2 0x00ac10e1 in execute_pass_list_1(opt_pass*) ()
#3 0x00ac10f3 in execute_pass_list_1(opt_pass*) ()
#4 0x00ac1135 in execute_pass_list(function*, opt_pass*) ()
#5 0x0078a923 in cgraph_node::expand() ()
#6 0x0078c03a in symbol_table::compile() [clone .part.51] ()
#7 0x0078e747 in symbol_table::finalize_compilation_unit() ()
#8 0x00b9edd5 in compile_file() ()
#9 0x005e293d in toplev::main(int, char**) ()
#10 0x005e4cc7 in main ()
[Bug target/79268] [6/7 Regression] Wrong code generation for vec_xl and vec_xst intrinsics
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79268 --- Comment #1 from Bill Schmidt --- Author: wschmidt Date: Mon Jan 30 03:32:59 2017 New Revision: 245021 URL: https://gcc.gnu.org/viewcvs?rev=245021&root=gcc&view=rev Log: [gcc] 2017-01-29 Bill Schmidt PR target/79268 * config/rs6000/altivec.h (vec_xl): Revise #define. (vec_xst): Likewise. [gcc/testsuite] 2017-01-29 Bill Schmidt PR target/79268 * gcc.target/powerpc/pr79268.c: New file. * gcc.target/powerpc/vsx-elemrev-1.c: Delete file. * gcc.target/powerpc/vsx-elemrev-2.c: Likewise. * gcc.target/powerpc/vsx-elemrev-3.c: Likewise. * gcc.target/powerpc/vsx-elemrev-4.c: Likewise. Added: trunk/gcc/testsuite/gcc.target/powerpc/pr79268.c Removed: trunk/gcc/testsuite/gcc.target/powerpc/vsx-elemrev-1.c trunk/gcc/testsuite/gcc.target/powerpc/vsx-elemrev-2.c trunk/gcc/testsuite/gcc.target/powerpc/vsx-elemrev-3.c trunk/gcc/testsuite/gcc.target/powerpc/vsx-elemrev-4.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/rs6000/altivec.h trunk/gcc/testsuite/ChangeLog
[Bug middle-end/79275] -Wformat-overflow false positive exceeding INT_MAX in glibc sysdeps/posix/tempname.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79275 Martin Sebor changed: What|Removed |Added Keywords||diagnostic Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2017-01-30 Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Martin Sebor --- The warning is overly aggressive and uses the upper bound of the precision range as the likely number of bytes output by the directive. Testing a patch that relaxes the checker to use the lower bound at level 1 instead.
[Bug middle-end/79275] New: -Wformat-overflow false positive exceeding INT_MAX in glibc sysdeps/posix/tempname.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79275
Bug ID: 79275
Summary: -Wformat-overflow false positive exceeding INT_MAX in
glibc sysdeps/posix/tempname.c
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
As reported on libc-alpha
(https://sourceware.org/ml/libc-alpha/2017-01/msg00541.html) the following test
case triggers a false positive -Wformat-overflow warning:
$ cat a.c && gcc -O2 -S -Wall -m32 a.c
typedef __SIZE_TYPE__ size_t;
void f (char *dst, size_t n, const char *s)
{
if (n < 2 || __INT_MAX__ - 2 < n)
n = 2;
__builtin_sprintf (dst, "%.*s %.*s", (int)n, s, (int)n, s);
}
a.c: In function ‘f’:
a.c:8:33: warning: ‘%.*s’ directive output between 0 and 2147483645 bytes may
cause result to exceed ‘INT_MAX’ [-Wformat-overflow=]
__builtin_sprintf (dst, "%.*s %.*s", (int)n, s, (int)n, s);
^~~~
[Bug c++/58798] class with a class reference member generates unjustified warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58798 --- Comment #4 from Jonathan Wakely --- (In reply to Szikra from comment #3) > The warning is still there if I use the -Wno-packed option: > g++ -std=gnu++11 -fpack-struct -Wno-packed eeprom.cpp -o eeprom > Why? Because the warning isn't controlled by the -Wpacked option. If it was, it would say [-Wpacked] after the warning. I think that's a bug, every warning should be controlled by some -Wxxx option. If the warning was controlled by an option you could suppress it with -Wno-xxx or a #pragma.
[Bug c/79269] Calculate size of struct with flexible array at compile time
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79269 --- Comment #2 from mojo at world3 dot net --- Thanks. __builtin_object_size() works well at runtime and solves me immediate need, which spurred me to suggest this enhancement. After giving it some thought I agree with you, I can't see any easy way to handle incomplete objects.
[Bug c/79269] Calculate size of struct with flexible array at compile time
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79269
Martin Sebor changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2017-01-29
CC||msebor at gcc dot gnu.org
Ever confirmed|0 |1
Severity|normal |enhancement
--- Comment #1 from Martin Sebor ---
__builtin_object_size() returns the size of an object with a flexible array
member but it doesn't evaluate to a constant expression. I don't see why it
couldn't evaluate to one in the simple cases so I'll confirm this as an
enhancement request.
In your second example, though, I doubt it will be feasible to extend the
builtin so as to let it obtain the size of an incomplete object. I.e., the
object's initializer will need to have been fully evaluated before the object's
size can be computed, just like it isn't possible to use sizeof to compute the
size of an array with an unspecified bound in its initialized:
char a[] = { sizeof a, 2, 3, 4 };
$ cat c.c && gcc -S -Wall -fdump-tree-optimized=/dev/stdout c.c
struct {
char a;
char b[];
} test = { 10, { 0, 1, 2, 3 } };
unsigned size (void)
{
return __builtin_object_size (&test, 0);
}
;; Function size (size, funcdef_no=0, decl_uid=1799, cgraph_uid=0,
symbol_order=1)
size ()
{
unsigned int D.1802;
unsigned int _1;
[0.00%]:
_1 = 5;
[0.00%]:
return _1;
}
[Bug c++/79274] New: FAIL: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _ZTH4var1B3tag
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79274 Bug ID: 79274 Summary: FAIL: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _ZTH4var1B3tag Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: danglin at gcc dot gnu.org Target Milestone: --- Host: hppa2.0w-hp-hpux11.11 Target: hppa2.0w-hp-hpux11.11 Build: hppa2.0w-hp-hpux11.11 Created attachment 40618 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40618&action=edit .s file spawn /test/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++ -B/test/gnu/gcc/objdir/gcc/testsuite/g++/../../ /test/gnu/gcc/gcc/gcc/testsuite/g++.dg/tls/pr77285-2.C -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include/hppa2.0w-hp-hpux11.11 -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include -I/test/gnu/gcc/gcc/libstdc++-v3/libsupc++ -I/test/gnu/gcc/gcc/libstdc++-v3/include/backward -I/test/gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -std=c++11 -pedantic-errors -Wno-long-long -S -o pr77285-2.sPASS: g++.dg/tls/pr77285-2.C -std=c++11 (test for excess errors)PASS: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _Z4var1B3tagPASS: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _Z4var2B3tagFAIL: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _ZTH4var1B3tag PASS: g++.dg/tls/pr77285-2.C -std=c++11 scan-assembler _ZTW4var1B3tag Think this is a result of emutls.
[Bug testsuite/79273] New: FAIL: c-c++-common/Wduplicated-branches-13.c -std=gnu++98 (test for excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79273 Bug ID: 79273 Summary: FAIL: c-c++-common/Wduplicated-branches-13.c -std=gnu++98 (test for excess errors) Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: danglin at gcc dot gnu.org Target Milestone: --- Host: hppa2.0w-hp-hpux11.11 Target: hppa2.0w-hp-hpux11.11 Build: hppa2.0w-hp-hpux11.11 spawn /test/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++ -B/test/gnu/gcc/objdir/gcc/testsuite/g++/../../ /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicate d-branches-13.c -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include/hppa2.0w-hp -hpux11.11 -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include -I/test/gnu/gcc/gcc/libstdc++-v3/libsupc++ -I/test/gnu/gcc/gcc/libstdc++-v3/includ e/b ackward -I/test/gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -std=gnu++98 -Wduplicated-branches -S -o Wduplicated-branches-13.s /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:11:7: warning: this decimal constant is unsigned only in ISO C90 /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:18:7: warning: this decimal constant is unsigned only in ISO C90 /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c: In function 'void fn1()': /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:9:3: warning: this condition has identical branches [-Wduplicated-branches] output is: /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:11:7: warning: this decimal constant is unsigned only in ISO C90 /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:18:7: warning: this decimal constant is unsigned only in ISO C90 /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c: In function 'void fn1()': /test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:9:3: warning: this condition has identical branches [-Wduplicated-branches] PASS: c-c++-common/Wduplicated-branches-13.c -std=gnu++98 (test for warnings, line 9)FAIL: c-c++-common/Wduplicated-branches-13.c -std=gnu++98 (test for excess errors)Excess errors:/test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:11:7: warning: this decimal constant is unsigned only in ISO C90/test/gnu/gcc/gcc/gcc/testsuite/c-c++-common/Wduplicated-branches-13.c:18:7: warning: this decimal constant is unsigned only in ISO C90
[Bug testsuite/79272] New: FAIL: gcc.dg/ipa/pr77653.c scan-ipa-dump icf "Not unifying; alias cannot be created; target is discardable"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79272 Bug ID: 79272 Summary: FAIL: gcc.dg/ipa/pr77653.c scan-ipa-dump icf "Not unifying; alias cannot be created; target is discardable" Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: danglin at gcc dot gnu.org Target Milestone: --- Host: hppa2.0w-hp-hpux11.11 Target: hppa2.0w-hp-hpux11.11 Build: hppa2.0w-hp-hpux11.11 Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/ /test/gnu/gcc/gcc/gcc/testsuite/gcc.dg/ipa/pr77653.c -fno-diagnostics-show-caret - fdiagnostics-color=never -O2 -fdump-ipa-icf-details -S -o pr77653.s (timeout = 300)spawn /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/ /test/gnu/gcc/gcc/gcc/testsuite/gcc.dg/ipa/pr77653.c -fno-diagnostics-show-caret -fdiagnostics-c olor=never -O2 -fdump-ipa-icf-details -S -o pr77653.sPASS: gcc.dg/ipa/pr77653.c (test for excess errors)PASS: gcc.dg/ipa/pr77653.c scan-ipa-dump icf "Equal symbols: 1" FAIL: gcc.dg/ipa/pr77653.c scan-ipa-dump icf "Not unifying; alias cannot be crea ted; target is discardable" Test needs to be xfailed on 32-bit hpux.
[Bug testsuite/79270] FAIL: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79270 --- Comment #2 from dave.anglin at bell dot net --- On 2017-01-29, at 1:48 PM, dominiq at lps dot ens.fr wrote: > On darwin this has been fixed by revision r244990. Maybe it's fixed then. Report was for revision 244960. -- John David Anglin dave.ang...@bell.net
[Bug fortran/78958] FAIL: gfortran.dg/alloc_comp_class_5.f03 - Segmentation fault
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78958 John David Anglin changed: What|Removed |Added Target|hppa64-hp-hpux11.11 |hppa*-*-hpux* Host|hppa64-hp-hpux11.11 |hppa*-*-hpux* Build|hppa64-hp-hpux11.11 |hppa*-*-hpux* --- Comment #2 from John David Anglin --- On hppa2.0w-hp-hpux11.11, the test has a segmentation fault in _sigfillset: Program received signal SIGSEGV, Segmentation fault. 0x7af9a2a4 in _sigfillset () from /usr/lib/libc.2 It is called with a NULL pointer argument: Breakpoint 2, 0x7af99400 in _sigfillset () from /usr/lib/libc.2 (gdb) p/x $r26 $1 = 0x0 (gdb) bt Python Exception Failed to load /home/gnu/lib/python2.7/lib-dynload/itertools.sl: #0 0x7af99400 in _sigfillset () from /usr/lib/libc.2 #1 0x7af9739c in _sscanf () from /usr/lib/libc.2 #2 0x7af9cba4 in malloc () from /usr/lib/libc.2 #3 0x559c in __array_list_MOD_add_item (a=..., e=...) at /test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/alloc_comp_class_5.f03:26 Breakpoint 4, 0x7af9ca18 in malloc () from /usr/lib/libc.2 (gdb) p/x $r26 $2 = 0x3 (gdb) bt Python Exception Failed to load /home/gnu/lib/python2.7/lib-dynload/itertools.sl: #0 0x7af9ca18 in malloc () from /usr/lib/libc.2 #1 0x559c in __array_list_MOD_add_item (a=..., e=...) at /test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/alloc_comp_class_5.f03:26 #2 0x6778 in MAIN__ () at /test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/alloc_comp_class_5.f03:42 #3 0x7370 in main (argc=1, argv=0x7eff07a4) at /test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/alloc_comp_class_5.f03:34 A malloc failure typically indicates that the program has written to memory that it doesn't own.
[Bug fortran/79230] [7 Regression] [OOP] Run time error: double free or corruption
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79230 vehre at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |vehre at gcc dot gnu.org --- Comment #19 from vehre at gcc dot gnu.org --- Created attachment 40616 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40616&action=edit Preliminary patch With the attached patch the rt_error executable compiles and runs without error. I haven't checked yet, whether there are regression in gfortran's testsuite.
[Bug testsuite/79270] FAIL: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79270 Dominique d'Humieres changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed||2017-01-29 Ever confirmed|0 |1 --- Comment #1 from Dominique d'Humieres --- On darwin this has been fixed by revision r244990.
[Bug target/53659] ARM: Using -mcpu=cortex-a9 option results in bad performance for Cortex-A9 processor in C-Ray phoronix benchmark
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53659 --- Comment #9 from PeteVine --- @jgreenhalgh Please have a look at the profiled assembly for both fast and slow codegen. (attached) According to @aldyh's bisection in #68664 this probably isn't the same issue.
[Bug testsuite/79270] New: FAIL: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for excess errors)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79270 Bug ID: 79270 Summary: FAIL: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for excess errors) Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: danglin at gcc dot gnu.org Target Milestone: --- Host: hppa2.0w-hp-hpux11.11 Target: hppa2.0w-hp-hpux11.11 Build: hppa2.0w-hp-hpux11.11 spawn /test/gnu/gcc/objdir/gcc/testsuite/obj-c++/../../xg++ -B/test/gnu/gcc/objd ir/gcc/testsuite/obj-c++/../../ /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/prope rty/at-property-23.mm -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/include/hppa2. 0w-hp-hpux11.11 -I/test/gnu/gcc/objdir/hppa2.0w-hp-hpux11.11/libstdc++-v3/includ e -I/test/gnu/gcc/gcc/libstdc++-v3/libsupc++ -I/test/gnu/gcc/gcc/libstdc++-v3/include/backward -I/test/gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -fgnu-runtime -ansi -pedantic-errors -Wno-long-long -I/test/gnu/gcc/gcc/gcc/testsuite/../../libobjc -S -o at-property-23.s/test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:14:1: error: property can not be an array/test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:15:16: error: expected ';' before ':' token/test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:16:17: error: ISO C++ forbids flexible array member 'c' [-Wpedantic]/test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:16:1: error: property can not be an array compiler exited with status 1 output is: /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:14:1: error: property can not be an array /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:15:16: error: expected ';' before ':' token /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:16:17: error: ISO C++ forbids flexible array member 'c' [-Wpedantic] /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:16:1: error: property can not be an array PASS: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for errors, line 14) PASS: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for errors, line 15) PASS: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for errors, line 16) FAIL: obj-c++.dg/property/at-property-23.mm -fgnu-runtime (test for excess errors) Excess errors: /test/gnu/gcc/gcc/gcc/testsuite/obj-c++.dg/property/at-property-23.mm:16:17: error: ISO C++ forbids flexible array member 'c' [-Wpedantic]
[Bug c/79269] New: Calculate size of struct with flexible array at compile time
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79269
Bug ID: 79269
Summary: Calculate size of struct with flexible array at
compile time
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: mojo at world3 dot net
Target Milestone: ---
As per the C99 standard, GCC treats structs with flexible arrays as if the
array had a size of 0. GCC offers an extension to allow such structs to be
initialized. For example:
struct {
char a;
char b[];
} test = { 10, { 0, 1, 2, 3 } };
In this case sizeof(test) will return 1, because b[] is considered to have a
size of zero even though GCC will correctly allocate 4 bytes and initialize
them.
To compliment this extension, a new builtin similar to sizeof() could be
created that returns the actual size of the struct (5 in this example).
This would be extremely useful for embedded systems in particular. For example,
one could:
struct {
char length;
char array[];
} test = { __new_sizeof(test) - 1, { 0, 1, 2, 3 } };
[Bug c++/58798] class with a class reference member generates unjustified warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58798 --- Comment #3 from Szikra --- The warning is still there if I use the -Wno-packed option: g++ -std=gnu++11 -fpack-struct -Wno-packed eeprom.cpp -o eeprom Why? I have found a suggestion to hide warning about ignored attributes: #pragma clang diagnostic ignored "-Wignored-attributes" which doesn't seem to have a GCC equivalent. :(
[Bug target/79268] [6/7 Regression] Wrong code generation for vec_xl and vec_xst intrinsics
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79268 Bill Schmidt changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2017-01-29 Version|6.3.1 |6.3.0 Target Milestone|--- |6.4 Ever confirmed|0 |1 Known to fail||6.3.0, 7.0
[Bug target/79268] New: [6/7 Regression] Wrong code generation for vec_xl and vec_xst intrinsics
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79268 Bug ID: 79268 Summary: [6/7 Regression] Wrong code generation for vec_xl and vec_xst intrinsics Product: gcc Version: 6.3.1 Status: UNCONFIRMED Keywords: wrong-code Severity: major Priority: P3 Component: target Assignee: wschmidt at gcc dot gnu.org Reporter: wschmidt at gcc dot gnu.org CC: segher at gcc dot gnu.org Target Milestone: --- Target: powerpc64*-*-* I had a thinko when adding the new element-reversing vector load and store instructions, tying them to vec_xl and vec_xst rather than vec_xl_be and vec_xst_be. This regresses these intrinsics both by generating wrong code for them, but also by rejecting legitimate parameter combinations that vec_xl/xst should support (such as vector pixel). This has been encountered building at least one debian package. I plan to attack this in two stages. First we'll need an emergency patch that just reverts the #define of these to match vec_vsx_ld and vec_vsx_st as they should, which we can submit to the various distros for immediate use. Later I'll fix up the rest so that vec_xl_be and vec_xst_be make use of the new instructions.
[Bug c++/58798] class with a class reference member generates unjustified warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58798 --- Comment #2 from Szikra --- Created attachment 40615 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40615&action=edit preprocessed test case Compiled with g++ --save-temps -std=gnu++11 -fpack-struct eeprom.cpp -o eeprom eeprom.cpp: In instantiation of 'class EepromAccessor': eeprom.cpp:29:16: required from here eeprom.cpp:16:8: warning: ignoring packed attribute because of unpacked non-POD field 'unsigned int& EepromAccessor::data_' T& data_; ^
[Bug c++/58798] class with a class reference member generates unjustified warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58798
Szikra changed:
What|Removed |Added
CC||steven.spark at gmail dot com
--- Comment #1 from Szikra ---
I'm having a similar issue.
Got here from here:
http://stackoverflow.com/questions/35152877/ignoring-packed-attribute-because-of-unpacked-non-pod-field
I'm not sure if this is a bug or not, I'm looking ways to get rid of the
warning message. (without removing -fpack-struct from the command line)
How can I do that?
Any '#pragma GCC diagnostic ignored' I can use?
My compiler output looks something like this:
...common/eeprom.hpp: In instantiation of 'class
FromEeprom::EepromAccessor':
../src/test.cpp:193:29: required from here
…common/eeprom.hpp:119:8: warning: ignoring packed attribute because of
unpacked non-POD field 'long unsigned int& FromEeprom::EepromAccessor::data_' [enabled by default]
GCC Versions:
AVR8/GNU C Compiler : 4.8.1, 4.9.2 (latest I could find for AVR on Windows)
similar result with MinGW 5.3:
g++ -std=gnu++11 -fpack-struct eeprom.cpp -o eeprom
from test/eeprom.cpp:19:
./common/eeprom.hpp: In instantiation of 'class
FromEeprom::EepromAccessor':
test/eeprom.cpp:30:16: required from here
./common/eeprom.hpp:119:8: warning: ignoring packed attribute because of
unpacked non-POD field 'unsigned int& FromEeprom::EepromAccessor::data_'
T& data_;
But with the added errors:
In file included from
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/ios:42:0,
from
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/ostream:38,
from
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/iostream:39,
from test/eeprom.cpp:23:
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:
In member function 'std::ios_base::fmtflags
std::ios_base::setf(std::ios_base::fmtflags)':
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:649:7:
error: cannot bind packed field
'((std::ios_base*)this)->std::ios_base::_M_flags' to 'std::_Ios_Fmtflags&'
_M_flags |= __fmtfl;
^
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:
In member function 'std::ios_base::fmtflags
std::ios_base::setf(std::ios_base::fmtflags, std::ios_base::fmtflags)':
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:666:7:
error: cannot bind packed field
'((std::ios_base*)this)->std::ios_base::_M_flags' to 'std::_Ios_Fmtflags&'
_M_flags &= ~__mask;
^
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:667:7:
error: cannot bind packed field
'((std::ios_base*)this)->std::ios_base::_M_flags' to 'std::_Ios_Fmtflags&'
_M_flags |= (__fmtfl & __mask);
^
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:
In member function 'void std::ios_base::unsetf(std::ios_base::fmtflags)':
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:679:7:
error: cannot bind packed field
'((std::ios_base*)this)->std::ios_base::_M_flags' to 'std::_Ios_Fmtflags&'
{ _M_flags &= ~__mask; }
^
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:
In member function 'long int& std::ios_base::iword(int)':
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:813:21:
error: cannot bind packed field '__word.std::ios_base::_Words::_M_iword' to
'long int&'
return __word._M_iword;
^
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:
In member function 'void*& std::ios_base::pword(int)':
C:/mingw-w64/x86_64-5.3.0-posix-seh-rt_v4-rev0/mingw64/x86_64-w64-mingw32/include/c++/bits/ios_base.h:834:21:
error: cannot bind packed field '__word.std::ios_base::_Words::_M_pword' to
'void*&'
return __word._M_pword;
^
Here is a code to reproduce:
//#include
//using namespace std;
#define EEMEM /// fake
template
class EepromAccessor {
public:
EepromAccessor(T& data) : data_(data) {};
inline operator T() { return (data_);} /// fake Get
inline EepromAccessor& operator=(const T& val) { /// fake Set
data_= val;return *this;
}
private:
T& data_;
};
template
inline EepromAccessor Eeprom(T& data)
{
EepromAccessor eepromdata(data);
return eepromdata;
}
unsigned int EEMEM test;
int main()
{
Eeprom(test) = 32;
unsigned int r = Eeprom(test);
//cout << " eeprom: "
[Bug fortran/70696] [Coarray] ICE on EVENT POST of host-associated EVENT_TYPE coarray
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70696 --- Comment #15 from vehre at gcc dot gnu.org --- Author: vehre Date: Sun Jan 29 15:14:41 2017 New Revision: 245016 URL: https://gcc.gnu.org/viewcvs?rev=245016&root=gcc&view=rev Log: libgfortran/ChangeLog: 2017-01-29 Andre Vehreschild Backport from trunk 2017-01-13 Andre Vehreschild PR fortran/68887 PR fortran/70696 * caf/single.c (_gfortran_caf_register): Allocate enough memory for the event counter. Modified: branches/gcc-6-branch/libgfortran/caf/single.c
[Bug fortran/68887] [6 regression] gfortran.dg/coarray/event_[12].f90 -fcoarray=lib -O2 -lcaf_single -latomic fails
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68887 --- Comment #15 from vehre at gcc dot gnu.org --- Author: vehre Date: Sun Jan 29 15:14:41 2017 New Revision: 245016 URL: https://gcc.gnu.org/viewcvs?rev=245016&root=gcc&view=rev Log: libgfortran/ChangeLog: 2017-01-29 Andre Vehreschild Backport from trunk 2017-01-13 Andre Vehreschild PR fortran/68887 PR fortran/70696 * caf/single.c (_gfortran_caf_register): Allocate enough memory for the event counter. Modified: branches/gcc-6-branch/libgfortran/caf/single.c
[Bug fortran/70697] [Coarray] ICE on EVENT WAIT with array element UNTIL_COUNT argument
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70697 --- Comment #6 from vehre at gcc dot gnu.org --- Backported to gcc-6. Waiting on week for regression before closing.
[Bug fortran/70697] [Coarray] ICE on EVENT WAIT with array element UNTIL_COUNT argument
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70697 --- Comment #5 from vehre at gcc dot gnu.org --- Author: vehre Date: Sun Jan 29 14:47:28 2017 New Revision: 245015 URL: https://gcc.gnu.org/viewcvs?rev=245015&root=gcc&view=rev Log: gcc/testsuite/ChangeLog: 2017-01-29 Andre Vehreschild Backport from trunk 2017-01-13 Andre Vehreschild PR fortran/70697 * gfortran.dg/coarray/event_4.f08: New test. gcc/fortran/ChangeLog: 2017-01-29 Andre Vehreschild Backport from trunk 2017-01-13 Andre Vehreschild PR fortran/70697 * resolve.c (resolve_lock_unlock_event): Resolve the expression for event's until_count. Added: branches/gcc-6-branch/gcc/testsuite/gfortran.dg/coarray/event_4.f08 Modified: branches/gcc-6-branch/gcc/fortran/ChangeLog branches/gcc-6-branch/gcc/fortran/resolve.c branches/gcc-6-branch/gcc/testsuite/ChangeLog
[Bug c++/79267] New: internal compiler error with -O3 or -O2 -finline-functions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79267 Bug ID: 79267 Summary: internal compiler error with -O3 or -O2 -finline-functions Product: gcc Version: 6.3.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: g.chauvat at laposte dot net Target Milestone: --- Created attachment 40614 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40614&action=edit reduced preprocessed file Hi, The compilation of Nektar++ fails with an internal compiler error when using -O3 or -O2 -finline-functions with g++ 6.3.1 on Arch Linux. It compiles well with -O2. - The full preprocessed file weighs 5 MB: https://fichiers.fschhh.net/fichiers1/Interp.ii a version reduced with creduce is attached, I hope it triggers the same problem. - compiler options: COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.1/lto-wrapper Cible : x86_64-pc-linux-gnu Configuré avec: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --disable-multilib --disable-werror --enable-checking=release Modèle de thread: posix gcc version 6.3.1 20170109 (GCC) - log: /home/guillaume/local/src/nektar++/library/LibUtilities/Foundations/Interp.cpp: Dans la fonction « void Nektar::LibUtilities::Interp2D(const Nektar::LibUtilities::PointsKey&, const Nektar::LibUtilities::PointsKey&, const NekDouble*, const Nektar::LibUtilities::PointsKey&, const Nektar::LibUtilities::PointsKey&, Nektar::NekDouble*) »: /home/guillaume/local/src/nektar++/library/LibUtilities/Foundations/Interp.cpp:166:53: erreur interne du compilateur : dans assign_temp, à function.c:961 I1 = PointsManager()[fpoints1]->GetI(tpoints1); ~~~^~
[Bug fortran/70696] [Coarray] ICE on EVENT POST of host-associated EVENT_TYPE coarray
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70696 --- Comment #14 from vehre at gcc dot gnu.org --- Backported to gcc-6. Waiting one week for regressions before closing.
[Bug fortran/70696] [Coarray] ICE on EVENT POST of host-associated EVENT_TYPE coarray
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70696 --- Comment #13 from vehre at gcc dot gnu.org --- Author: vehre Date: Sun Jan 29 13:50:23 2017 New Revision: 245014 URL: https://gcc.gnu.org/viewcvs?rev=245014&root=gcc&view=rev Log: 2017-01-29 Andre Vehreschild Backport from trunk PR fortran/70696 * trans-expr.c (gfc_get_tree_for_caf_expr): Ensure the backend_decl is valid before accessing it. Remove unnecessary assert. * trans-decl.c (gfc_build_qualified_array): Add static tokens to the parent function's scope only, when the decl-context is not the translation unit. 2017-01-29 Andre Vehreschild Backport from trunk 2017-01-19 Andre Vehreschild PR fortran/70696 * gfortran.dg/coarray_43.f90: New test. 2017-01-18 Andre Vehreschild PR fortran/70696 * gfortran.dg/coarray_event_1.f08: New test. 2017-01-13 Andre Vehreschild PR fortran/70696 * gfortran.dg/coarray/event_3.f08: New test. Added: branches/gcc-6-branch/gcc/testsuite/gfortran.dg/coarray/event_3.f08 branches/gcc-6-branch/gcc/testsuite/gfortran.dg/coarray_43.f90 branches/gcc-6-branch/gcc/testsuite/gfortran.dg/coarray_event_1.f08 Modified: branches/gcc-6-branch/gcc/fortran/ChangeLog branches/gcc-6-branch/gcc/fortran/trans-decl.c branches/gcc-6-branch/gcc/fortran/trans-expr.c branches/gcc-6-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/78580] [6 Regression] Segfault in gcc with multilib (-m32) and -ffixed-*
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78580 Jakub Jelinek changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|FIXED |--- --- Comment #9 from Jakub Jelinek --- .
[Bug rtl-optimization/78580] [6 Regression] Segfault in gcc with multilib (-m32) and -ffixed-*
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78580 Adrian Bunk changed: What|Removed |Added CC||bunk at stusta dot de --- Comment #8 from Adrian Bunk --- Could you also fix this in the gcc 6 branch? This is a gcc 6 regression that is part of the reason why gprolog in Debian cannot be compiled with gcc 6 on i686. Thanks
