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* [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf
@ 2005-03-06 23:48 jbrandmeyer at earthlink dot net
2005-03-06 23:54 ` [Bug target/20353] uclibc does not provide C99 math functions pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 10+ messages in thread
From: jbrandmeyer at earthlink dot net @ 2005-03-06 23:48 UTC (permalink / raw)
To: gcc-bugs
When optimizing, GCC converts calls to cos() and sin() (and probably others,
these were the ones I saw) into calls to cosf() and sinf() when cos() and sin()
are called with a "float" argument. The problem with this is that neither
libgcc nor uClibc provide cosf and sinf! The bug can be worked around by
passing -fno-builtin-cos and -fno-builtin-sin.
The trivial code:
extern double cos(double);
float do_cos(float f)
{ return cos(f); }
Produces this assembly code output:
.file "test.c"
.text
.align 2
.global do_cos
.type do_cos, %function
do_cos:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
@ link register save eliminated.
@ lr needed for prologue
b cosf
.size do_cos, .-do_cos
.ident "GCC: (GNU) 3.4.2"
When run as "arm-linux-gcc -S -O2 test.c"
Output of "arm-linux-gcc -v:"
Reading specs from
/home/jonathan/workspace/gumstix/gumstix-buildroot/build_arm_nofpu/staging_dir/bin-ccache/../lib/gcc/arm-linux-uclibc/3.4.2/specs
Configured with:
/home/jonathan/workspace/gumstix/gumstix-buildroot/toolchain_build_arm_nofpu/gcc-3.4.2/configure
--prefix=/home/jonathan/workspace/gumstix/gumstix-buildroot/build_arm_nofpu/staging_dir
--build=i386-pc-linux-gnu --host=i386-pc-linux-gnu --target=arm-linux-uclibc
--enable-languages=c,c++ --enable-shared --disable-__cxa_atexit
--enable-target-optspace --with-gnu-ld --disable-nls --with-float=soft
--enable-sjlj-exceptions
Thread model: posix
gcc version 3.4.2
--
Summary: GCC incorrectly issues calls to sinf, cosf
Product: gcc
Version: 3.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jbrandmeyer at earthlink dot net
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i386-pc-linux-gnu
GCC target triplet: arm-linux-uclibc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
2005-03-06 23:48 [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf jbrandmeyer at earthlink dot net
@ 2005-03-06 23:54 ` pinskia at gcc dot gnu dot org
2005-03-10 0:59 ` jbrandmeyer at earthlink dot net
` (2 subsequent siblings)
3 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-03-06 23:54 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-06 23:54 -------
Note Linux defaults to being glibc which implies that it has C99 math functions, really uclibc really
should have a different configure file if it does not have C99 functions. Well technicially it should
provide them anyways as they are required by the C99 standard.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |minor
Component|c |target
Summary|GCC incorrectly issues calls|uclibc does not provide C99
|to sinf, cosf |math functions
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
2005-03-06 23:48 [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf jbrandmeyer at earthlink dot net
2005-03-06 23:54 ` [Bug target/20353] uclibc does not provide C99 math functions pinskia at gcc dot gnu dot org
@ 2005-03-10 0:59 ` jbrandmeyer at earthlink dot net
2005-03-10 1:08 ` pinskia at gcc dot gnu dot org
2005-07-15 21:30 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 10+ messages in thread
From: jbrandmeyer at earthlink dot net @ 2005-03-10 0:59 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From jbrandmeyer at earthlink dot net 2005-03-10 00:59 -------
uClibc has added these functions to SVN, and they will be available in the next
release of uClibc. However, their presence is still a configurable option - the
user can configure uClibc to not include any of the C99 math functions. What is
the best way to configure GCC in this case? Is there a relevant configure-time
option? Simply specifying -std=c++98 or -std=c89 is not enough to prevent this
behavior.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
2005-03-06 23:48 [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf jbrandmeyer at earthlink dot net
2005-03-06 23:54 ` [Bug target/20353] uclibc does not provide C99 math functions pinskia at gcc dot gnu dot org
2005-03-10 0:59 ` jbrandmeyer at earthlink dot net
@ 2005-03-10 1:08 ` pinskia at gcc dot gnu dot org
2005-07-15 21:30 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-03-10 1:08 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10 01:08 -------
(In reply to comment #2)
> uClibc has added these functions to SVN, and they will be available in the next
> release of uClibc. However, their presence is still a configurable option - the
> user can configure uClibc to not include any of the C99 math functions. What is
> the best way to configure GCC in this case? Is there a relevant configure-time
> option? Simply specifying -std=c++98 or -std=c89 is not enough to prevent this
> behavior.
None of the above, this is not a runtime configurable thing, as the libc have will it or not at configure
time.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
2005-03-06 23:48 [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf jbrandmeyer at earthlink dot net
` (2 preceding siblings ...)
2005-03-10 1:08 ` pinskia at gcc dot gnu dot org
@ 2005-07-15 21:30 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-15 21:30 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-15 21:26 -------
uclibc needs its own target headers and triplet.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
GCC host triplet|i386-pc-linux-gnu |
Last reconfirmed|0000-00-00 00:00:00 |2005-07-15 21:26:51
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
[parent not found: <bug-20353-6060@http.gcc.gnu.org/bugzilla/>]
* [Bug target/20353] uclibc does not provide C99 math functions
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
@ 2006-02-10 20:14 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:29 ` jsm28 at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 10+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2006-02-10 20:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jsm28 at gcc dot gnu dot org 2006-02-10 20:14 -------
Fixed by my patch <http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00843.html>,
pending review.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jsm28 at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2005-09-24 16:44:26 |2006-02-10 20:14:48
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
2006-02-10 20:14 ` jsm28 at gcc dot gnu dot org
@ 2006-02-16 23:29 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:39 ` jsm28 at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 10+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2006-02-16 23:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jsm28 at gcc dot gnu dot org 2006-02-16 23:29 -------
Subject: Bug 20353
Author: jsm28
Date: Thu Feb 16 23:29:10 2006
New Revision: 111160
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111160
Log:
gcc:
PR target/20353
PR target/24578
PR target/24837
* config/linux.opt: New file.
* config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
LINUX_DYNAMIC_LINKER): Define.
(TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
* config.gcc (*-*-linux*): Define extra_options.
(*-*-*uclibc*): Define UCLIBC_DEFAULT.
(arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
* config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
GLIBC_DYNAMIC_LINKER.
* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
(LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
* config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
* doc/invoke.texi (GNU/Linux Options): New section.
gcc/testsuite:
* gcc.dg/builtins-config.h (HAVE_C99_RUNTIME): Don't define if
__UCLIBC__ is defined.
libstdc++-v3:
PR libstdc++/14939
* config/os/uclibc/ctype_base.h, config/os/uclibc/ctype_inline.h,
config/os/uclibc/ctype_noninline.h, config/os/uclibc/os_defines.h:
New.
* acinclude.m4 (GLIBCXX_CONFIGURE): Test whether using uClibc.
* configure.host: Use os/uclibc for uClibc.
* crossconfig.m4 (*-linux*): Use link tests. Don't hardcode
presence of math functions.
* configure: Regenerate.
Added:
trunk/gcc/config/linux.opt
trunk/libstdc++-v3/config/os/uclibc/
trunk/libstdc++-v3/config/os/uclibc/ctype_base.h
trunk/libstdc++-v3/config/os/uclibc/ctype_inline.h
trunk/libstdc++-v3/config/os/uclibc/ctype_noninline.h
trunk/libstdc++-v3/config/os/uclibc/os_defines.h
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config.gcc
trunk/gcc/config/arm/linux-eabi.h
trunk/gcc/config/arm/linux-elf.h
trunk/gcc/config/linux.h
trunk/gcc/config/mips/linux.h
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/builtins-config.h
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/acinclude.m4
trunk/libstdc++-v3/configure
trunk/libstdc++-v3/configure.host
trunk/libstdc++-v3/crossconfig.m4
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
2006-02-10 20:14 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:29 ` jsm28 at gcc dot gnu dot org
@ 2006-02-16 23:39 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:40 ` jsm28 at gcc dot gnu dot org
2007-01-03 23:01 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2006-02-16 23:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jsm28 at gcc dot gnu dot org 2006-02-16 23:38 -------
Subject: Bug 20353
Author: jsm28
Date: Thu Feb 16 23:38:44 2006
New Revision: 111161
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111161
Log:
PR libstdc++/14939
PR target/20353
PR target/24578
PR target/24837
* gcc/config/linux.opt: New file.
* gcc/config/linux.h (CHOOSE_DYNAMIC_LINKER,
UCLIBC_DYNAMIC_LINKER, LINUX_DYNAMIC_LINKER): Define.
(TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
* gcc/config.gcc (*-*-linux*): Define extra_options.
(*-*-*uclibc*): Define UCLIBC_DEFAULT.
(arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
* gcc/config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change
to GLIBC_DYNAMIC_LINKER.
* gcc/config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
(LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
* gcc/config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
(LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
* gcc/doc/invoke.texi (GNU/Linux Options): New section.
* gcc/testsuite/gcc.dg/builtins-config.h (HAVE_C99_RUNTIME): Don't
define if __UCLIBC__ is defined.
* libstdc++-v3/config/os/uclibc/ctype_base.h,
libstdc++-v3/config/os/uclibc/ctype_inline.h,
libstdc++-v3/config/os/uclibc/ctype_noninline.h,
libstdc++-v3/config/os/uclibc/os_defines.h: New.
* libstdc++-v3/acinclude.m4 (GLIBCXX_CONFIGURE): Test whether
using uClibc.
* libstdc++-v3/configure.host: Use os/uclibc for uClibc.
* libstdc++-v3/crossconfig.m4 (*-linux*): Use link tests. Don't
hardcode presence of math functions.
* libstdc++-v3/configure: Regenerate.
Added:
branches/csl/sourcerygxx-4_1/gcc/config/linux.opt
branches/csl/sourcerygxx-4_1/libstdc++-v3/config/os/uclibc/
branches/csl/sourcerygxx-4_1/libstdc++-v3/config/os/uclibc/ctype_base.h
branches/csl/sourcerygxx-4_1/libstdc++-v3/config/os/uclibc/ctype_inline.h
branches/csl/sourcerygxx-4_1/libstdc++-v3/config/os/uclibc/ctype_noninline.h
branches/csl/sourcerygxx-4_1/libstdc++-v3/config/os/uclibc/os_defines.h
Modified:
branches/csl/sourcerygxx-4_1/ChangeLog.csl
branches/csl/sourcerygxx-4_1/gcc/config.gcc
branches/csl/sourcerygxx-4_1/gcc/config/arm/linux-eabi.h
branches/csl/sourcerygxx-4_1/gcc/config/arm/linux-elf.h
branches/csl/sourcerygxx-4_1/gcc/config/linux.h
branches/csl/sourcerygxx-4_1/gcc/config/mips/linux.h
branches/csl/sourcerygxx-4_1/gcc/doc/invoke.texi
branches/csl/sourcerygxx-4_1/gcc/testsuite/gcc.dg/builtins-config.h
branches/csl/sourcerygxx-4_1/libstdc++-v3/acinclude.m4
branches/csl/sourcerygxx-4_1/libstdc++-v3/configure
branches/csl/sourcerygxx-4_1/libstdc++-v3/configure.host
branches/csl/sourcerygxx-4_1/libstdc++-v3/crossconfig.m4
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2006-02-16 23:39 ` jsm28 at gcc dot gnu dot org
@ 2006-02-16 23:40 ` jsm28 at gcc dot gnu dot org
2007-01-03 23:01 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2006-02-16 23:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jsm28 at gcc dot gnu dot org 2006-02-16 23:40 -------
Fixed for 4.2.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/20353] uclibc does not provide C99 math functions
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2006-02-16 23:40 ` jsm28 at gcc dot gnu dot org
@ 2007-01-03 23:01 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-01-03 23:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from pinskia at gcc dot gnu dot org 2007-01-03 23:00 -------
Subject: Bug 20353
Author: pinskia
Date: Wed Jan 3 23:00:40 2007
New Revision: 120404
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=120404
Log:
2007-01-03 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/20353
* gimplify.c (gimplify_modify_expr_complex_part): Move below
tree_to_gimple_tuple. Call tree_to_gimple_tuple when we need
the value.
2007-01-03 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/30353
* gcc.c-torture/compile/complex-4.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/complex-4.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimplify.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20353
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2007-01-03 23:01 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-03-06 23:48 [Bug c/20353] New: GCC incorrectly issues calls to sinf, cosf jbrandmeyer at earthlink dot net
2005-03-06 23:54 ` [Bug target/20353] uclibc does not provide C99 math functions pinskia at gcc dot gnu dot org
2005-03-10 0:59 ` jbrandmeyer at earthlink dot net
2005-03-10 1:08 ` pinskia at gcc dot gnu dot org
2005-07-15 21:30 ` pinskia at gcc dot gnu dot org
[not found] <bug-20353-6060@http.gcc.gnu.org/bugzilla/>
2006-02-10 20:14 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:29 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:39 ` jsm28 at gcc dot gnu dot org
2006-02-16 23:40 ` jsm28 at gcc dot gnu dot org
2007-01-03 23:01 ` pinskia at gcc dot gnu dot org
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