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* c++/2717: g++ fails to compile code that should be correct
@ 2001-05-02 12:36 gerald.roth
0 siblings, 0 replies; only message in thread
From: gerald.roth @ 2001-05-02 12:36 UTC (permalink / raw)
To: gcc-gnats; +Cc: stefan
>Number: 2717
>Category: c++
>Synopsis: g++ fails to compile code that should be correct
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Wed May 02 12:36:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: CVS
>Release: 3_0-branch
>Organization:
>Environment:
SuSE linux 7.0, kernel 2.4.4, target i686-pc-linux-gnu
>Description:
the following code out of the kdelibs package (kdelibs/arts/flow/convert.cc) fails to compile with the following error:
the code:
[snip]
#ifdef HAVE_X86_FLOAT_INT
static inline long QRound (float inval)
{
long ret;
asm ("fistpl %0" : "=m" (ret) : "t" (inval) : "st");
return ret;
}
#else
static inline long QRound (float inval)
{
return (long)inval;
}
#endif/
[snip]
the error:
[snip]
make[1]: Entering directory `/usr/src/kde2/cvs/kdelibs/arts/flow'
/bin/sh ../../libtool --mode=compile --tag=CXX g++ -DHAVE_CONFIG_H -I. -I. -I../.. -I../../dcop -I../../libltdl -I../../kdecore -I../../kdeui -I../../kssl -I/usr/src/kde2/cvs/qt-copy/include -I/usr/X11R6/include -I/opt/kde/include -I../../arts/mcop -DQT_THREAD_SUPPORT -pthread -D_REENTRANT -O2 -DNDEBUG -fno-exceptions -fno-check-new -O3 -march=athlon -frtti -ftemplate-depth-99 -DQT_NO_TRANSLATION -DQT_CLEAN_NAMESPACE -DQT_NO_COMPAT -DQT_NO_ASCII_CAST -c convert.cc
g++ -DHAVE_CONFIG_H -I. -I. -I../.. -I../../dcop -I../../libltdl -I../../kdecore -I../../kdeui -I../../kssl -I/usr/src/kde2/cvs/qt-copy/include -I/usr/X11R6/include -I/opt/kde/include -I../../arts/mcop -DQT_THREAD_SUPPORT -pthread -D_REENTRANT -O2 -DNDEBUG -fno-exceptions -fno-check-new -O3 -march=athlon -frtti -ftemplate-depth-99 -DQT_NO_TRANSLATION -DQT_CLEAN_NAMESPACE -DQT_NO_COMPAT -DQT_NO_ASCII_CAST -Wp,-MD,.deps/convert.pp -c convert.cc -fPIC -DPIC -o .libs/convert.o
convert.cc: In function `void Arts::convert_stereo_2float_i16le(long unsigned
int, float*, float*, unsigned char*)':
convert.cc:33: output number 0 not directly addressable
convert.cc:33: output number 0 not directly addressable
convert.cc:33: inconsistent operand constraints in an `asm'
convert.cc:33: inconsistent operand constraints in an `asm'
convert.cc: In function `void Arts::convert_mono_float_16le(long unsigned int,
float*, unsigned char*)':
convert.cc:33: output number 0 not directly addressable
convert.cc:33: inconsistent operand constraints in an `asm'
convert.cc: In function `void Arts::convert_stereo_2float_i16be(long unsigned
int, float*, float*, unsigned char*)':
convert.cc:33: output number 0 not directly addressable
convert.cc:33: output number 0 not directly addressable
convert.cc:33: inconsistent operand constraints in an `asm'
convert.cc:33: inconsistent operand constraints in an `asm'
convert.cc: In function `void Arts::convert_mono_float_16be(long unsigned int,
float*, unsigned char*)':
convert.cc:33: output number 0 not directly addressable
convert.cc:33: inconsistent operand constraints in an `asm'
make[1]: *** [convert.lo] Error 1
make[1]: Leaving directory `/usr/src/kde2/cvs/kdelibs/arts/flow'
make: *** [all-recursive] Error 1
[snip]
i've already contacted stefan westerfeld, the arts developer, about this issue, but he thinks the code is legal and correct (2.95.3 compiles it without errors)
i'll attach the whole convert.cc file
>How-To-Repeat:
try to compile kdelibs on an i686-pc-linux-gnu target with gcc-3_0-branch version
>Fix:
not known
>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="convert.cc"
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