[Bug lto/39279] [lto] - Werror in ../lto_trunk/gcc/lto/lto.c
--- Comment #4 from rob1weld at aol dot com 2009-07-17 06:43 --- (In reply to comment #2) Confirmed. The proposed fix is not correct, though, as the type of the first argument to munmap _is_ void* according to POSIX. Thanks for applying the patch. I've not looked at 'LTO' source in a few months, we could 'cast in the other direction' (fix everything else), but I imagine _we_ had a reason not to fix this properly ... People need to test their code on a few versions of GCC (3.4.x 4.x.x). Thanks Ben Rainer, Rob -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39279
[Bug c/40782] New: Code works with optimization disabled.. but not with 02 for when used as cross compiler for ARM 11 MP
We are building c code with compiler optimization. We are using GCC 4.1.2 as cross compiler for ARM 11 MP core. Here is description of the problem as I can not share the actual code due to licensing issues function A - function B. Function A calls B with a pointer as an argument. When a function is called with pointer as an argument, after the return, the address is getting modified. If I print the pointer in the function B, it is correct. Note that the address is passed as a value. Is there any known issue ? I couldn't find any in the data base. -- Summary: Code works with optimization disabled.. but not with 02 for when used as cross compiler for ARM 11 MP Product: gcc Version: 4.1.2 Status: UNCONFIRMED Severity: major Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: mahendra dot sp at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40782
[Bug libmudflap/40778] [4.5 Regression] Mudflap instrumentation missing in cloned function.
--- Comment #2 from rguenth at gcc dot gnu dot org 2009-07-17 09:44 --- *** Bug 40755 has been marked as a duplicate of this bug. *** -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40778
[Bug libmudflap/40755] [4.5 Regression] Mudflap instrumentation missing in cloned function.
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-07-17 09:44 --- *** This bug has been marked as a duplicate of 40778 *** -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40755
[Bug libmudflap/40778] [4.5 Regression] Mudflap instrumentation missing in cloned function.
-- rguenth at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|--- |4.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40778
[Bug rtl-optimization/40772] generating rendundant moves from second byte of 32b/64b register
--- Comment #3 from rguenth at gcc dot gnu dot org 2009-07-17 09:54 --- The zero extension is done to avoid partial register stalls. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40772
[Bug c++/20423] Warning -Woverloaded-virtual triggers to often
-- jason at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |jason at gcc dot gnu dot org |dot org | Status|NEW |ASSIGNED Keywords||patch Last reconfirmed|2005-11-24 02:23:45 |2009-07-17 10:00:52 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20423
[Bug bootstrap/39610] ICE in libstdc++-v3/include in stage 3
--- Comment #6 from rainer at emrich-ebersheim dot de 2009-07-17 10:30 --- This doesn't show up anymore. Someone with appropriate permissions may close this PR. Rainer -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39610
[Bug bootstrap/39610] ICE in libstdc++-v3/include in stage 3
--- Comment #7 from ktietz at gcc dot gnu dot org 2009-07-17 10:35 --- Seems to be fixed by side-effect. Thanks, Kai -- ktietz at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39610
[Bug c++/40780] [4.4/4.5 Regression] ICE in gimplify_conversion
--- Comment #5 from jakub at gcc dot gnu dot org 2009-07-17 10:40 --- Subject: Bug 40780 Author: jakub Date: Fri Jul 17 10:40:09 2009 New Revision: 149740 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149740 Log: PR c++/40780 * gimplify.c (gimplify_conversion): Don't change non-conversions into VIEW_CONVERT_EXPR. * g++.dg/template/ptrmem19.C: New test. Added: trunk/gcc/testsuite/g++.dg/template/ptrmem19.C Modified: trunk/gcc/ChangeLog trunk/gcc/gimplify.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40780
[Bug c++/40780] [4.4/4.5 Regression] ICE in gimplify_conversion
--- Comment #6 from jakub at gcc dot gnu dot org 2009-07-17 10:46 --- Subject: Bug 40780 Author: jakub Date: Fri Jul 17 10:45:40 2009 New Revision: 149741 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149741 Log: PR c++/40780 * gimplify.c (gimplify_conversion): Don't change non-conversions into VIEW_CONVERT_EXPR. * g++.dg/template/ptrmem19.C: New test. Added: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/ptrmem19.C Modified: branches/gcc-4_4-branch/gcc/ChangeLog branches/gcc-4_4-branch/gcc/gimplify.c branches/gcc-4_4-branch/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40780
[Bug c++/40780] [4.4/4.5 Regression] ICE in gimplify_conversion
--- Comment #7 from jakub at gcc dot gnu dot org 2009-07-17 10:57 --- Fixed. -- jakub at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED Target Milestone|--- |4.4.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40780
[Bug rtl-optimization/40772] generating rendundant moves from second byte of 32b/64b register
--- Comment #4 from zsojka at seznam dot cz 2009-07-17 11:03 ---
The zero extension is done to avoid partial register stalls.
I am sorry, this is explanation to me that the generated code is supposedly
fastest, but only because of some undocumented/unlucky conditions the
benchmark shows different result? (and so this task can be possibly closed
because there is no way to determinically improve generated code)
Or do you say the code responsible for eliminating partial register stalls
does bad job here because when using only 'ah' and 'eax', there is no _false_
register dependency?
I wasn't sure if this has something to do with partial register stall
elimination because the following, very similiar (and functionally identical)
code:
uint8_t data[16];
static __attribute__((noinline)) void bar(unsigned i)
{
unsigned j;
for (j = 0; j 16; j++)
data[j] = (i + j) 8;
}
Is compiled as:
bar:
.LFB12:
.cfi_startproc
movl%edi, %eax
shrl$8, %eax
movb%al, data(%rip)
leal1(%rdi), %eax
shrl$8, %eax
movb%al, data+1(%rip)
leal2(%rdi), %eax
shrl$8, %eax
movb%al, data+2(%rip)
leal3(%rdi), %eax
shrl$8, %eax
movb%al, data+3(%rip)
leal4(%rdi), %eax
...
There is no partial register stall elimination, the only difference is shr
instead of movzx.
So I thought that:
- the version with mask 0xFF00 is decyphered as 'only second byte is masked
out and then shifted right by 8b, so ah can be moved to al (resp. whole
eax)'
- the version without mask is not decyphered as reading only second byte, so
do just shift right of the working register
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40772
[Bug c/40757] gcc 4.4.0 miscompiles mpfr-2.4.1
--- Comment #18 from david dot kirkby at onetel dot net 2009-07-17 11:19
---
(In reply to comment #17)
Try:
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *, const void *, size_t);
extern void abort (void);
volatile size_t i = 0x8000U, j = 0x8000U;
char buf[16];
int main (void)
{
if (sizeof (size_t) != 4)
return 0;
buf[0] = 6;
memset (buf, 0, i + j);
if (buf[0] != 6)
abort ();
return 0;
}
In 32-bit code, size_t is 32-bit, memset is called with buf, 0, 0 arguments,
but the %o2 register passed to it doesn't contain 0, but 0x1. That is
fine, this is 32-bit code, so the uppermost bits are always undefined. But
when 32-bit memset uses brnz %o2, ... instruction, it needs to first
zero-extend it to 64-bits, as brnz operates on all 64 bits only. Or not use
brnz, but compare and be %icc, ...
I've compiled and linked that code. It does not abort. i.e. I do NOT see:
Abort (core dumped).
In 64-bit mode, it issues a warning:
$ gcc -m64 check.c
check.c:2: warning: conflicting types for built-in function 'memset'
but again builds an executable which exits normally.
If you want the assembler output posted from Tim's preprocessed file, let me
know how to do it and I'll do it, just in case gcc is behaving differently on
this machine to yours.
As I say, if you want an account Jakub, you can have one. Just tell me a user
name. It might be the simplest way for you to look at this.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40757
[Bug tree-optimization/40321] [4.4/4.5 Regression] internal compiler error: in compute_antic, at tree-ssa-pre.c:2501
--- Comment #27 from rguenth at gcc dot gnu dot org 2009-07-17 12:44 --- Subject: Bug 40321 Author: rguenth Date: Fri Jul 17 12:44:05 2009 New Revision: 149744 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149744 Log: 2009-07-17 Richard Guenther rguent...@suse.de PR tree-optimization/40321 * tree-ssa-pre.c (add_to_exp_gen): Also add names defined by PHI nodes to the maximal set. (make_values_for_phi): Add PHI arguments to the maximal set. (execute_pre): Dump PHI_GEN and the maximal set. * gcc.c-torture/compile/pr40321.c: New testcase. * g++.dg/torture/pr40321.C: Likewise. Added: trunk/gcc/testsuite/g++.dg/torture/pr40321.C trunk/gcc/testsuite/gcc.c-torture/compile/pr40321.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-pre.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40321
[Bug tree-optimization/40321] [4.4 Regression] internal compiler error: in compute_antic, at tree-ssa-pre.c:2501
--- Comment #28 from rguenth at gcc dot gnu dot org 2009-07-17 12:44 --- Fixed on the trunk sofar. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Known to fail||4.4.0 Known to work||4.5.0 Summary|[4.4/4.5 Regression]|[4.4 Regression] internal |internal compiler error: in |compiler error: in |compute_antic, at tree-ssa- |compute_antic, at tree-ssa- |pre.c:2501 |pre.c:2501 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40321
[Bug other/40784] New: [4.5 Regression] Revision 149725 caused autoconf warning in libstdc++
Revision 149725: http://gcc.gnu.org/ml/gcc-cvs/2009-07/msg00606.html caused: [...@gnu-6 libstdc++-v3]$ autoconf-2.59 configure.ac:178: warning: GCC_NO_EXECUTABLES invoked multiple times /export/redhat/rpms/BUILD/autoconf-2.59/tests/../lib/autoconf/general.m4:2213: AC_LINK_IFELSE is expanded from... /export/redhat/rpms/BUILD/autoconf-2.59/tests/../lib/autoconf/general.m4:2271: AC_RUN_IFELSE is expanded from... /export/redhat/rpms/BUILD/autoconf-2.59/tests/../lib/autoconf/general.m4:1792: AC_CACHE_VAL is expanded from... /export/redhat/rpms/BUILD/autoconf-2.59/tests/../lib/autoconf/general.m4:1805: AC_CACHE_CHECK is expanded from... ../config/tls.m4:2: GCC_CHECK_TLS is expanded from... configure.ac:178: the top level configure.ac:247: warning: GCC_NO_EXECUTABLES invoked multiple times crossconfig.m4:5: GLIBCXX_CROSSCONFIG is expanded from... configure.ac:247: the top level [...@gnu-6 libstdc++-v3]$ in libstdc++-v3 -- Summary: [4.5 Regression] Revision 149725 caused autoconf warning in libstdc++ Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40784
[Bug target/39182] ICE in gen_add2_insn, at optabs.c:4884
--- Comment #7 from joel at gcc dot gnu dot org 2009-07-17 14:32 --- Patch committed. Ran coverage to verify that it didn't introduce a new uncovered range of code. Sorry to have broken it. Trying to get to 100% test coverage and eliminate dead code. -- joel at gcc dot gnu dot org changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39182
[Bug target/39182] ICE in gen_add2_insn, at optabs.c:4884
--- Comment #8 from joel at gcc dot gnu dot org 2009-07-17 14:38 --- Stupid human error. Clicked on wrong bug. -- joel at gcc dot gnu dot org changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|FIXED | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39182
[Bug boehm-gc/40785] New: Powerpc bootstrap is broken due to problems in boehm-gc
The test and set locks in boehm-gc/include/private/gc_locks.h have invalid asm for creating the test and set locks and the current Powerpc GCC compiler generates errors when enabling java in a bootstrap. In addition, GCC 4.4 has added the __sync_lock_test_and_set and __sync_lock_release builtins which abstract these functions, so the asm is not needed for 4.4 and beyond. -- Summary: Powerpc bootstrap is broken due to problems in boehm-gc Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: critical Priority: P3 Component: boehm-gc AssignedTo: meissner at linux dot vnet dot ibm dot com ReportedBy: meissner at gcc dot gnu dot org GCC build triplet: powerpc64-unknown-linux-gnu GCC host triplet: powerpc64-unknown-linux-gnu GCC target triplet: powerpc64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40785
[Bug lto/40758] [LTO] ICE in partition_view_bitmap, at tree-ssa-live.c:331
--- Comment #6 from rguenth at gcc dot gnu dot org 2009-07-17 14:52 --- I'm reducing the first testcase. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40758
[Bug boehm-gc/40785] Powerpc bootstrap is broken due to problems in boehm-gc
--- Comment #1 from meissner at gcc dot gnu dot org 2009-07-17 14:53 --- Created an attachment (id=18213) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18213action=view) Patch to use sync builtins if we can, and fix asm constraints if we have an older compiler -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40785
[Bug other/40784] [4.5 Regression] Revision 149725 caused autoconf warning in libstdc++
--- Comment #1 from jsm28 at gcc dot gnu dot org 2009-07-17 15:08 --- Subject: Bug 40784 Author: jsm28 Date: Fri Jul 17 15:08:36 2009 New Revision: 149748 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149748 Log: PR other/40784 config: * tls.m4 (GCC_CHECK_TLS): Add extra quoting around argument to AC_LINK_IFELSE. libjava: * configure: Regenerate. libstdc++-v3: * configure: Regenerate. Modified: trunk/config/ChangeLog trunk/config/tls.m4 trunk/libjava/ChangeLog trunk/libjava/configure trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/configure -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40784
[Bug lto/40758] [LTO] ICE in partition_view_bitmap, at tree-ssa-live.c:331
--- Comment #7 from rguenth at gcc dot gnu dot org 2009-07-17 15:12 ---
Reduced testcase:
typedef struct disp_surface { unsigned char *vidptr; } disp_surface_t;
void
ffb_ctx_scaled_blit(disp_surface_t *src, unsigned char *srcwork, int scopy)
{
unsigned char *sptr = sptr;
sptr = src-vidptr;
__builtin_memcpy(srcwork, sptr, scopy);
}
./xgcc -B. -c ice.3.i -flto -O -m32
./xgcc -B. -shared ice.3.o -flto -m32
In file included from :2:0:
ice.3.i: In function 'ffb_ctx_scaled_blit':
ice.3.i:3:1: internal compiler error: in partition_view_bitmap, at
tree-ssa-live.c:331
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html for instructions.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40758
[Bug lto/40765] [LTO] ICE verify_ssa failed
--- Comment #3 from rguenth at gcc dot gnu dot org 2009-07-17 15:40 ---
confvar.i:
struct variable {
const char *string;
};
struct variable table[] = { };
getconf.i:
struct variable {
const char *string;
};
extern struct variable table[];
int main(int argc, char *argv[])
{
struct variable *p;
for(p = table; p-string; p++)
;
}
./xgcc -B. confvar.3.i getconf.3.i -flto -O
In function 'main':
lto1: error: address taken, but ADDRESSABLE bit not set
PHI argument
table[0];
for PHI node
p_1 = PHI table[0](2), p_4(3)
lto1: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html for instructions.
as table is a global variable this is likely just a verifier issue - the
TREE_ADDRESSABLE state of non-static variables is not relevant (still it
seems it's not properly merged). With -fwhole-program table should be
promoted to static, thus TREE_ADDRESSABLE should be merged here.
Like the following, which fixes the testcase:
Index: lto-symtab.c
===
--- lto-symtab.c(revision 149739)
+++ lto-symtab.c(working copy)
@@ -572,6 +572,9 @@ lto_symtab_merge_decl (tree new_decl,
if (!lto_symtab_compatible (old_decl, new_decl))
return;
+ /* Merge decl state. */
+ TREE_ADDRESSABLE (old_decl) |= TREE_ADDRESSABLE (new_decl);
+
old_resolution = lto_symtab_get_resolution (old_decl);
gcc_assert (resolution != LDPR_UNKNOWN
resolution != LDPR_UNDEF
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2009-07-15 15:15:34 |2009-07-17 15:40:25
date||
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40765
[Bug c/40401] [4.5 Regression] ICE: verify_gimple failed
--- Comment #5 from rguenth at gcc dot gnu dot org 2009-07-17 15:50 --- Subject: Bug 40401 Author: rguenth Date: Fri Jul 17 15:49:34 2009 New Revision: 149750 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149750 Log: 2009-07-17 Richard Guenther rguent...@suse.de PR c/40401 * tree-pass.h (pass_diagnose_omp_blocks): Declare. (pass_warn_unused_result): Likewise. (TODO_set_props): Remove. * omp-low.c (diagnose_omp_structured_block_errors): Change to run as a pass. (pass_diagnose_omp_blocks): Define. * c-decl.c (pop_file_scope): Do not finalize the CU here. (c_gimple_diagnostics_recursively): Remove. (finish_function): Do not call it. (c_write_global_declarations): Continue after errors. Finalize the CU here. * c-gimplify.c (c_genericize): Do not gimplify here. * c-common.c (c_warn_unused_result): Move ... * tree-cfg.c (do_warn_unused_result): ... here. (run_warn_unused_result): New function. (gate_warn_unused_result): New function. (pass_warn_unused_result): New pass. * c-common.h (c_warn_unused_result): Remove. * flags.h (flag_warn_unused_result): Declare. * c-opts.c (c_common_init_options): Enable flag_warn_unused_result. * opts.c (flag_warn_unused_result): Initialize to false. * toplev.c (compile_file): Add comment. * omp-low.c (create_omp_child_function): Do not register the function with the frontend. (diagnose_omp_structured_block_errors): Prepare to be called as optimization pass. (gate_diagnose_omp_blocks): New function. (pass_diagnose_omp_blocks): New pass. * cgraph.h (cgraph_optimize): Remove. (cgraph_analyze_function): Likewise. * cgraph.c (cgraph_add_new_function): Gimplify C++ thunks. * cgraphunit.c (cgraph_lower_function): Lower nested functions before their parents here. (cgraph_finalize_function): Not here. (cgraph_analyze_function): Gimplify functions here. (cgraph_finalize_compilation_unit): Continue after errors. Optimize the callgraph from here. (cgraph_optimize): Make static. * langhooks.c (write_global_declarations): Finalize the CU. * gimplify.c (gimplify_asm_expr): Do not emit ASMs with errors. (gimplify_function_tree): Assert we gimplify only once. Set PROP_gimple_any property. * tree-nested.c (gimplify_all_functions): New function. (lower_nested_functions): Gimplify all nested functions. * gimple.h (diagnose_omp_structured_block_errors): Remove. * passes.c (init_optimization_passes): Add pass_warn_unused_result and pass_diagnose_omp_blocks after gimplification. Do not set TODO_set_props on all_lowering_passes. (execute_one_pass): Do not handle TODO_set_props. * Makefile.in (cgraphunit.o): Add $(TREE_DUMP_H) dependency. (gimplify.o): Add tree-pass.h dependency. * tree-inline.c (copy_statement_list): Properly copy STATEMENT_LIST. (copy_tree_body_r): Properly handle TARGET_EXPR like SAVE_EXPR. (unsave_r): Likewise. * c-omp.c (c_finish_omp_atomic): Set DECL_CONTEXT on the temporary variable. cp/ * decl.c (finish_function): Do not emit unused result warnings from here. * cp-objcp-common.h (LANG_HOOKS_POST_GIMPLIFY_PASS): Use c_warn_unused_result_pass. * semantics.c (expand_or_defer_fn): Adjust assertion about IL status. * optimize.c (clone_body): Clone in GENERIC. (maybe_clone_body): Do not clear DECL_SAVED_TREE. * decl2.c (cp_write_global_declarations): Fix body test. Do not call cgraph_optimize. * Make-lang.in (optimize.o): Add tree-iterator.h dependency. * method.c (use_thunk): Register thunk with cgraph_finalize_function. * error.c (function_category): Guard access of DECL_LANG_SPECIFIC. java/ * java-gimplify.c (java_genericize): Do not gimplify here. But replace all local references. (java_gimplify_expr): Do not replace local references here. (java_gimplify_modify_expr): Likewise. * jcf-parse.c (java_parse_file): Do not finalize the CU or optimize the cgraph here. * decl.c (java_replace_reference): Make static. (java_replace_references): New function. (end_java_method): Clear base_decl_map. * java-tree.h (java_replace_references): Declare. (java_replace_reference): Remove. ada/ * utils.c (end_subprog_body): Revert to pre-tuples state. Remove unused parameter. (gnat_gimplify_function): Do not gimplify here. Fold into its only caller and remove. (gnat_builtin_function): Adjust for end_subprog_body signature change. (gnat_write_global_declarations):
[Bug c/40757] gcc 4.4.0 miscompiles mpfr-2.4.1
--- Comment #19 from marc dot glisse at normalesup dot org 2009-07-17 15:51 --- (In reply to comment #18) I've compiled and linked that code. It does not abort. Bad point for this theory :-( The result could still depend on the alignment of the pointer, so you could try replacing buf[0] by buf[4] and calling memset(buf+4,...) (try several small values instead of 4). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40757
[Bug target/40786] New: Windows %I32 format confusion
http://msdn.microsoft.com/en-us/library/tcxf1dw6(VS.71).aspx says that the Windows %I32 printf formats take arguments of type __int32 or unsigned __int32. config/i386/msformat-c.c defines these using FMT_LEN_l, i.e. type long. It appears that MinGW uses long for __int32, but MinGW-W64 uses int (despite long being 32-bit for Win64), and so the compiler should distinguish between these cases - or, in this special case, allow both types. (I don't know what __int32 is with the MS compiler, for either 32-bit or 64-bit.) The testcase gcc.dg/format/ms-format1.c passes an int value to this format, and so fails. sys_format.c passes a long value, and so passes. Clearly both should pass the same type. -- Summary: Windows %I32 format confusion Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jsm28 at gcc dot gnu dot org GCC target triplet: *-*-mingw* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40786
[Bug c/40401] [4.5 Regression] ICE: verify_gimple failed
--- Comment #6 from rguenth at gcc dot gnu dot org 2009-07-17 16:07 --- Fixed. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40401
[Bug fortran/40727] ICE gfc_simplify_dcmplx(): Bad type when passing BT_COMPLEX to cmplx
--- Comment #1 from kargl at gcc dot gnu dot org 2009-07-17 17:39 --- I'm working on a patch that may fix this issue. It's bootstrapping at the moment. -- kargl at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |kargl at gcc dot gnu dot org |dot org | Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2009-07-17 17:39:27 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40727
[Bug lto/40765] [LTO] ICE verify_ssa failed
--- Comment #4 from rguenth at gcc dot gnu dot org 2009-07-17 17:41 --- Subject: Bug 40765 Author: rguenth Date: Fri Jul 17 17:41:38 2009 New Revision: 149753 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149753 Log: 2009-07-17 Richard Guenther rguent...@suse.de PR lto/40765 * lto-symtab.c (lto_symtab_merge_decl): Merge TREE_ADDRESSABLE state. * gcc.dg/lto/20090717_0.c: New testcase. * gcc.dg/lto/20090717_1.c: Likewise. Added: branches/lto/gcc/testsuite/gcc.dg/lto/20090717_0.c branches/lto/gcc/testsuite/gcc.dg/lto/20090717_1.c Modified: branches/lto/gcc/ChangeLog.lto branches/lto/gcc/lto-symtab.c branches/lto/gcc/testsuite/ChangeLog.lto -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40765
[Bug lto/40765] [LTO] ICE verify_ssa failed
--- Comment #5 from rguenth at gcc dot gnu dot org 2009-07-17 17:42 --- Fixed. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40765
[Bug debug/40599] [4.5 regression] GCC error in pre_and_rev_post_order_compute, at cfganal.c:1045
--- Comment #9 from oliver dot kellogg at eads dot com 2009-07-17 17:49 --- Triggered by http://gcc.gnu.org/viewcvs?root=gccview=revrev=146776 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40599
[Bug debug/40599] [4.5 regression] GCC error in pre_and_rev_post_order_compute, at cfganal.c:1045
--- Comment #10 from rguenth at gcc dot gnu dot org 2009-07-17 18:11 --- Honza, this is yours. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||hubicka at gcc dot gnu dot ||org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40599
[Bug c/40787] New: [4.5 Regression] ICE: verify_gimple failed in gcc.dg/pr35899.c
/home/richard/src/trunk/gcc/testsuite/gcc.dg/pr35899.c:13:1: warning: conflicting types for 'bar' /home/richard/src/trunk/gcc/testsuite/gcc.dg/pr35899.c:8:11: note: previous implicit declaration of 'bar' was here /home/richard/src/trunk/gcc/testsuite/gcc.dg/pr35899.c: In function 'foo': /home/richard/src/trunk/gcc/testsuite/gcc.dg/pr35899.c:6:1: error: invalid conversion in gimple call int void a = bar (); /home/richard/src/trunk/gcc/testsuite/gcc.dg/pr35899.c:6:1: internal compiler error: verify_gimple failed Please submit a full bug report, with preprocessed source if appropriate. See http://gcc.gnu.org/bugs.html for instructions. Caused by gimplifying unit-at-a-time. Should be rejected with an error. 20:55 jsm28 richi: We can reject it (compile-time undefined in C90, diagnostic required in C99). -- Summary: [4.5 Regression] ICE: verify_gimple failed in gcc.dg/pr35899.c Product: gcc Version: 4.5.0 Status: UNCONFIRMED Keywords: accepts-invalid Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40787
[Bug c/40787] [4.5 Regression] ICE: verify_gimple failed in gcc.dg/pr35899.c
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-07-17 18:58 --- Mine. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Keywords||ice-on-invalid-code Last reconfirmed|-00-00 00:00:00 |2009-07-17 18:58:59 date|| Target Milestone|--- |4.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40787
[Bug bootstrap/40788] New: [4.5 regression] ICE : tree check: expected class 'expression', have 'declaration' (var_decl) in gimplify_va_arg_expr, at builtins.c:5107
Between 20090702 and 20090717, compiling genattrtab.c in stage 2 fails on Solaris 11/SPARC like this: % /vol/gccsrc/obj/gcc-4.5.0-20090717/11-gcc/./prev-gcc/xgcc -B/vol/gccsrc/obj/gcc-4.5.0-20090717/11-gcc/./prev-gcc/ -B/vol/gcc/sparc-sun-solaris2.11/bin/ -B/vol/gcc/sparc-sun-solaris2.11/bin/ -B/vol/gcc/sparc-sun-solaris2.11/lib/ -isystem /vol/gcc/sparc-sun-solaris2.11/include -isystem /vol/gcc/sparc-sun-solaris2.11/sys-include-c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I/vol/gcc/src/gcc-dist/gcc -I/vol/gcc/src/gcc-dist/gcc/build -I/vol/gcc/src/gcc-dist/gcc/../include -I/vol/gcc/src/gcc-dist/gcc/../libcpp/include -I/vol/gcc/include -I/vol/gcc/include -I/vol/gcc/src/gcc-dist/gcc/../libdecnumber -I/vol/gcc/src/gcc-dist/gcc/../libdecnumber/dpd -I../libdecnumber -o build/genattrtab.o /vol/gcc/src/gcc-dist/gcc/genattrtab.c /vol/gcc/src/gcc-dist/gcc/genattrtab.c: In function 'attr_rtx_1': /vol/gcc/src/gcc-dist/gcc/genattrtab.c:479:28: internal compiler error: tree check: expected class 'expression', have 'declaration' (var_decl) in gimplify_va_arg_expr, at builtins.c:5107 This can be reproduced even with cc1 -fpreprocessed -quiet genattrtab.i -- Summary: [4.5 regression] ICE : tree check: expected class 'expression', have 'declaration' (var_decl) in gimplify_va_arg_expr, at builtins.c:5107 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ro at gcc dot gnu dot org GCC build triplet: sparc-sun-solaris2.11 GCC host triplet: sparc-sun-solaris2.11 GCC target triplet: sparc-sun-solaris2.11 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40788
[Bug bootstrap/40788] [4.5 regression] ICE : tree check: expected class 'expression', have 'declaration' (var_decl) in gimplify_va_arg_expr, at builtins.c:5107
--- Comment #1 from ro at gcc dot gnu dot org 2009-07-17 19:25 --- Created an attachment (id=18214) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18214action=view) preprocessed input file -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40788
[Bug other/40789] New: fixincludes/fixincl.c: duplicate call to close ?
I just had a look at source code file fixincludes/fixincl.c I can see that function test_for_changes makes a call to close near the end of its definition as follows close (read_fd); /* probably redundant, but I'm paranoid */ But around line 1352 of the same file is what appears to be a redundant call to close. test_for_changes (read_fd); close (read_fd); So there seems to be duplicate calls to close on the same file descriptor. Suggest remove the second call to close and re-word the comment, which appears to be wrong, the close is required. -- Summary: fixincludes/fixincl.c: duplicate call to close ? Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40789
[Bug lto/40790] New: plugin-api.h unconditionally includes stdint.h
I tried to build the lto branch as of 20090709 on IRIX 6.5 with GCC 3.4.5 as bootstrap compiler. The build fails like this: % gcc -c -g -fkeep-inline-functions -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -Wold-style-definition -fno-common -DHAVE_CONFIG_H -I. -I. -I/vol/gcc/src/gcc-lto/gcc -I/vol/gcc/src/gcc-lto/gcc/. -I/vol/gcc/src/gcc-lto/gcc/../include -I/vol/gcc/src/gcc-lto/gcc/../libcpp/include -I/vol/gcc/include -I/vol/gcc/include -I/vol/gcc/src/gcc-lto/gcc/../libdecnumber -I/vol/gcc/src/gcc-lto/gcc/../libdecnumber/dpd -I../libdecnumber -I/vol/gcc/include -I/vol/gcc/include/libelf /vol/gcc/src/gcc-lto/gcc/lto-streamer-in.c -o lto-streamer-in.o In file included from /vol/gcc/src/gcc-lto/gcc/tree-flow.h:29, from /vol/gcc/src/gcc-lto/gcc/lto-streamer-in.c:36: /vol/gcc/src/gcc-lto/gcc/gimple.h: In function `gimple_op': /vol/gcc/src/gcc-lto/gcc/gimple.h:1578: warning: cast discards qualifiers from pointer target type /vol/gcc/src/gcc-lto/gcc/gimple.h: In function `gimple_op_ptr': /vol/gcc/src/gcc-lto/gcc/gimple.h:1592: warning: cast discards qualifiers from pointer target type In file included from /vol/gcc/src/gcc-lto/gcc/../include/plugin-api.h:29, from /vol/gcc/src/gcc-lto/gcc/lto-streamer.h:26, from /vol/gcc/src/gcc-lto/gcc/lto-streamer-in.c:49: /usr/include/stdint.h:5:2: #error This header file is to be used only for c99 mode compilations make: *** [lto-streamer-in.o] Error 1 While the native IRIX 6.5 stdint.h could be used with -std=c99 (or gnu99), this will fail completely on platforms that lack stdint.h completely. Using a sufficiently new gcc as bootstrap compiler that provides stdint.h itself would be a workaround, but gcc is supposed to be buildable with any C90 compiler. -- Summary: plugin-api.h unconditionally includes stdint.h Product: gcc Version: lto Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ro at gcc dot gnu dot org GCC build triplet: mips-sgi-irix6.5 GCC host triplet: mips-sgi-irix6.5 GCC target triplet: mips-sgi-irix6.5 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40790
[Bug fortran/40714] [4.4/4.5 Regression] Fortran runtime error: Invalid argument
--- Comment #9 from jb at gcc dot gnu dot org 2009-07-17 19:40 --- Subject: Bug 40714 Author: jb Date: Fri Jul 17 19:40:23 2009 New Revision: 149757 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=149757 Log: When finalizing I/O transfer, set current_record to 0 before returning. PR libfortran/40714 Modified: trunk/libgfortran/ChangeLog trunk/libgfortran/io/transfer.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40714
[Bug c++/40749] [4.3/4.4/4.5 Regression] g++ doesnt report missing return if return is of type const type
--- Comment #2 from simartin at gcc dot gnu dot org 2009-07-17 19:57
---
It seems to be caused by the fix for PR#18313. I am testing the following:
Index: gcc/cp/decl.c
===
--- gcc/cp/decl.c (revision 149752)
+++ gcc/cp/decl.c (working copy)
@@ -8314,12 +8314,14 @@
if (type_quals != TYPE_UNQUALIFIED)
{
if (SCALAR_TYPE_P (type) || VOID_TYPE_P (type))
- warning (OPT_Wignored_qualifiers,
- type qualifiers ignored on function return type);
+ {
+ warning (OPT_Wignored_qualifiers,
+type qualifiers ignored on function return
type);
+ set_no_warning = true;
+ }
/* We now know that the TYPE_QUALS don't apply to the
decl, but to its return type. */
type_quals = TYPE_UNQUALIFIED;
- set_no_warning = true;
}
errmsg = targetm.invalid_return_type (type);
if (errmsg)
--
simartin at gcc dot gnu dot org changed:
What|Removed |Added
CC||simartin at gcc dot gnu dot
||org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40749
[Bug middle-end/40791] New: [4.5 Regression] Revision 149750 failed gcc.dg/pr35899.c
On Linux/ia32, revision 149750: http://gcc.gnu.org/ml/gcc-cvs/2009-07/msg00631.html caused: FAIL: gcc.dg/pr35899.c (internal compiler error) FAIL: gcc.dg/pr35899.c (test for excess errors) -- Summary: [4.5 Regression] Revision 149750 failed gcc.dg/pr35899.c Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40791
[Bug middle-end/40791] [4.5 Regression] Revision 149750 failed gcc.dg/pr35899.c
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-07-17 20:14 --- *** This bug has been marked as a duplicate of 40787 *** -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||DUPLICATE Summary|[4.5 Regression] Revision |[4.5 Regression] Revision |149750 failed |149750 failed |gcc.dg/pr35899.c|gcc.dg/pr35899.c http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40791
[Bug c/40787] [4.5 Regression] ICE: verify_gimple failed in gcc.dg/pr35899.c
--- Comment #2 from rguenth at gcc dot gnu dot org 2009-07-17 20:14 --- *** Bug 40791 has been marked as a duplicate of this bug. *** -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||hjl dot tools at gmail dot ||com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40787
[Bug c/39959] [4.5 Regression] IMA is broken
--- Comment #6 from rguenth at gcc dot gnu dot org 2009-07-17 21:08 --- I have a patch. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2009-04-30 00:16:29 |2009-07-17 21:08:55 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39959
[Bug c/40792] New: internal error in com_mpi.c at -O3 for gcc 4.4.0
Use attached preprocessed file com_mpi.c, which is extracted from SPEC mpi 2007. Then with gcc 4.4.0: gcc -c com_mpi.c -O3 com_mpi.c:1215: warning: conflicting types for built-in function âcexpâ com_mpi.c:1216: warning: conflicting types for built-in function âclogâ com_mpi.c:1217: warning: conflicting types for built-in function âcsqrtâ com_mpi.c:4906: internal compiler error: in build_function_type_skip_args, at tree.c:5954 Please submit a full bug report, with preprocessed source if appropriate. -O2 is fine. gcc 4.1.2 -O3 is fine. Verbose: Target: x86_64-unknown-linux-gnu Configured with: /net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/gcc-4.4.0/configure --prefix=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local --exec-prefix=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local --enable-languages=c++,fortran --with-gmp-include=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local/include --with-mpfr-include=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local/include --with-gmp-lib=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local/lib64 --with-mpfr-lib=/net/hs-usca-01.sfbay/export/home1/12/dgh/gnu-linux/local/lib64 Thread model: posix gcc version 4.4.0 (GCC) COLLECT_GCC_OPTIONS='-c' '-O3' '-v' '-mtune=generic' /home/dgh/gnu-linux/local/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.4.0/cc1 -quiet -v -iprefix /home/dgh/gnu-linux/local/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/ com_mpi.c -quiet -dumpbase com_mpi.c -mtune=generic -auxbase com_mpi -O3 -version -o /tmp/ccYOwHWM.s ignoring nonexistent directory /home/dgh/gnu-linux/local/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/../../../../x86_64-unknown-linux-gnu/include ignoring duplicate directory /home/dgh/gnu-linux/local/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/include ignoring duplicate directory /home/dgh/gnu-linux/local/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/include-fixed ignoring nonexistent directory /home/dgh/gnu-linux/local/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/../../../../x86_64-unknown-linux-gnu/include #include ... search starts here: #include ... search starts here: /home/dgh/gnu-linux/local/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/include /home/dgh/gnu-linux/local/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.4.0/include-fixed /usr/local/include /home/dgh/gnu-linux/local/bin/../lib/gcc/../../include /usr/include End of search list. GNU C (GCC) version 4.4.0 (x86_64-unknown-linux-gnu) compiled by GNU C version 4.4.0, GMP version 4.3.1, MPFR version 2.4.1. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 3d0e0887103ac420bddd7fc530a7193e com_mpi.c:1215: warning: conflicting types for built-in function âcexpâ com_mpi.c:1216: warning: conflicting types for built-in function âclogâ com_mpi.c:1217: warning: conflicting types for built-in function âcsqrtâ com_mpi.c:4906: internal compiler error: in build_function_type_skip_args, at tree.c:5954 Please submit a full bug report, with preprocessed source if appropriate. gcc 4.1.2 --verbose: Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=x86_64-redhat-linux Thread model: posix gcc version 4.1.2 20071124 (Red Hat 4.1.2-42) -- Summary: internal error in com_mpi.c at -O3 for gcc 4.4.0 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dh458 at oakapple dot net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40792
[Bug c/40792] internal error in com_mpi.c at -O3 for gcc 4.4.0
--- Comment #1 from dh458 at oakapple dot net 2009-07-17 21:11 --- Created an attachment (id=18215) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18215action=view) preprocessed source file com_mpi.c to display bug -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40792
[Bug tree-optimization/40792] [4.4 Regression] internal error in com_mpi.c at -O3 for gcc 4.4.0
--- Comment #2 from rguenth at gcc dot gnu dot org 2009-07-17 21:37 --- Reducing. The trunk seems to work, -O2 -fipa-cp-clone is enough to trigger it (thus, -fno-ipa-cp-clone or -fno-ipa-cp is a workaround). -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||mjambor at suse dot cz Component|c |tree-optimization Keywords||ice-on-valid-code Known to fail||4.4.1 Known to work||4.3.3 4.5.0 Summary|internal error in com_mpi.c |[4.4 Regression] internal |at -O3 for gcc 4.4.0|error in com_mpi.c at -O3 ||for gcc 4.4.0 Target Milestone|--- |4.4.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40792
[Bug tree-optimization/40792] [4.4 Regression] internal error in com_mpi.c at -O3 for gcc 4.4.0
--- Comment #3 from rguenth at gcc dot gnu dot org 2009-07-17 21:41 ---
Reduced testcase:
typedef struct ompi_communicator_t *MPI_Comm;
void err_func(MPI_Comm *comm, int *stat, ...)
{
int len;
char err_string[256];
MPI_Error_string(*stat, err_string, len);
}
static MPI_Comm comm;
static int flag;
void fixup_ranks(int n)
{
err_func(comm, flag);
}
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|-00-00 00:00:00 |2009-07-17 21:41:15
date||
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40792
[Bug c++/40749] [4.3/4.4/4.5 Regression] g++ doesnt report missing return if return is of type const type
--- Comment #3 from simartin at gcc dot gnu dot org 2009-07-17 22:03 --- Updated patch submitted here: http://gcc.gnu.org/ml/gcc-patches/2009-07/msg01043.html -- simartin at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |simartin at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2009-07-15 09:37:13 |2009-07-17 22:03:33 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40749
[Bug c++/40793] New: Error: no matching function for call to XYZ doesn't display function-template-arguments
When a function-templates gets wrong arguments there's an error no matching function for call to result fun(args). But the template-arguments aren't displayed. So it takes hours to search the reason for this error in some cases. The output should look like: no matching function for call to result funtemplatearg1, templatearg2(args) [with templatearg1 = x, templatearg2 = y] It's not version-specific (tested with 4.3 and 4.5) -- Summary: Error: no matching function for call to XYZ doesn't display function-template-arguments Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jonathan dot sd24 at yahoo dot de http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40793
[Bug c/40757] gcc 4.4.0 miscompiles mpfr-2.4.1
--- Comment #20 from david dot kirkby at onetel dot net 2009-07-18 01:14
---
(In reply to comment #19)
(In reply to comment #18)
I've compiled and linked that code. It does not abort.
Bad point for this theory :-(
The result could still depend on the alignment of the pointer, so you could
try
replacing buf[0] by buf[4] and calling memset(buf+4,...) (try several small
values instead of 4).
I tried this in a loop. It still works, with no abort.
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *, const void *, size_t);
extern void abort (void);
volatile size_t i = 0x8000U, j = 0x8000U;
char buf[16];
int main (void)
{
int n;
for (n=0 ; n =64;++n) {
if (sizeof (size_t) != 4)
return 0;
buf[n] = 6;
memset (buf+n, 0, i + j);
if (buf[0] != 6)
abort ();
}
return 0;
}
I extended 'n' to larger values and find it does abort when it is 5592, but not
exactly the 'small' value you were looking for.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40757
[Bug c/40757] gcc 4.4.0 miscompiles mpfr-2.4.1
--- Comment #21 from david dot kirkby at onetel dot net 2009-07-18 01:18
---
(In reply to comment #20)
(In reply to comment #19)
(In reply to comment #18)
I've compiled and linked that code. It does not abort.
Bad point for this theory :-(
The result could still depend on the alignment of the pointer, so you could
try
replacing buf[0] by buf[4] and calling memset(buf+4,...) (try several small
values instead of 4).
I tried this in a loop. It still works, with no abort.
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *, const void *, size_t);
extern void abort (void);
volatile size_t i = 0x8000U, j = 0x8000U;
char buf[16];
int main (void)
{
int n;
for (n=0 ; n =64;++n) {
if (sizeof (size_t) != 4)
return 0;
buf[n] = 6;
memset (buf+n, 0, i + j);
if (buf[0] != 6)
abort ();
}
return 0;
}
I extended 'n' to larger values and find it does abort when it is 5592, but
not
exactly the 'small' value you were looking for.
Looking closely, you only declared allocated 16 bytes for the buffer, so it was
hardly surprising it aborted at large n. When I increased the buffer size, so
it worked as expected, even for n as large as 1
dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40757
[Bug c++/40794] New: LIBRARY_PATH not processed
Greetings, I am trying linking a shared library from my $HOME/lib path. If I compile using -L $HOME/lib it works properly. If I set 'export LIBRARY_PATH=$HOME/lib' before compiling it complains it can't find the library: /usr/bin/ld: cannot find -lmylib Thanks. -- Summary: LIBRARY_PATH not processed Product: gcc Version: 4.1.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: philippe at fornux dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40794
[Bug c/40757] gcc 4.4.0 miscompiles mpfr-2.4.1
--- Comment #22 from marc dot glisse at normalesup dot org 2009-07-18 04:50 --- (In reply to comment #20) buf[n] = 6; memset (buf+n, 0, i + j); if (buf[0] != 6) It looks like you forgot to replace the second buf[0] by buf[n]. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40757
