Package: g++-4.3
Version: 4.3.2-1.1
When compiling a program which used the C++ STL to contain instances of a class
of my own devising, I encountered spurious warnings. I have been able to reduce
the necessary code to a simple test case, which is included in this bug report
along with a
On Fri, Jan 16, 2009 at 08:10:15PM +0100, Martin Michlmayr wrote:
* brian m. carlson sand...@crustytoothpaste.ath.cx [2009-01-16 18:38]:
Obviously, since the two functions do the exact same thing, they should
be optimized to be identical. Instead, mul is pessimized.
Can you check if this
Processing commands for cont...@bugs.debian.org:
forwarded 512050 http://gcc.gnu.org/PR38899
Bug#512050: gcc-4.3: pessimizes function without SSE intrinsics
Noted your statement that Bug has been forwarded to http://gcc.gnu.org/PR38899.
thanks
Stopping processing here.
Please contact me if
[ Forwarded from http://bugs.debian.org/512050 ]
brian m. carlson reports the following problem with gcc 4.3 and trunk:
Attached is a C file that is compiled with -O3. mul and mul2 perform the
same operation; mul uses a loop, and mul2 uses SSE intrinsics. mul2
results in three instructions,
--- Comment #1 from tbm at cyrius dot com 2009-01-17 19:40 ---
Testcase:
#include stdio.h
#include xmmintrin.h
#ifndef MUL
#define MUL mul
#endif
void mul(float in1[4], float in2[4], float out[4])
{
int i;
for (i = 0; i 4; i++)
out[i] = in1[i] *
forwarded 512050 http://gcc.gnu.org/PR38899
thanks
* brian m. carlson sand...@crustytoothpaste.ath.cx [2009-01-17 17:13]:
I believe that it's the maintainers job to file the bug upstream, and
OK, I've verified that 4.3 and 4.4 from SVN produce the same code.
--
Martin Michlmayr
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