Re: Strangeness with SSE(1)

e 'double' test.c:7: warning: 'var' is used uninitialized in this function But the last one goes away if the first fprintf is commented out. So gcc passes _something_ for var to fprintf, but what? Thanks, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Strangeness with SSE(1)

y signature is that function from the start down to the DEBUGB line with all lines present - sorry about the wrap: David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech - static int forward_engine(i

vector extension bug?

endor_id : AuthenticAMD cpu family : 15 model : 33 model name : Dual Core AMD Opteron(tm) Processor 280 stepping: 2 cpu MHz : 1000.000 cache size : 1024 KB physical id : 0 siblings: 2 Is there something wrong with this program or is this a compiler bug? Thanks, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

best data extraction for SSE2 emulation?

pproach seems to be just a different a way to spin the pointer operations. For gcc in particular, is one approach or the other to be preferred and why? Thanks, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Re: Method to test all sse2 calls?

__m128i __B) { return (~__A) & __B; } becomes #define _mm_andnot_si128(A,B) (~A & B) That approach will get really messy for the more complicated _mm*. In general terms, can somebody give me a hint as to the sorts of things that if found in inlined functions might cause the comp

Re: Method to test all sse2 calls?

A0908 DEBUG i 0 DEBUG masks[i] 0 DEBUG val1.ll [masks[i]] 706050403020100 Aborted True enough 3020100 != 706050403020100, but what kind of test is that??? Regards, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Re: Method to test all sse2 calls?

#x27; /root/tmp/ccYAq3IB.o: In function `sse2_test': sse2-vec-4.c:(.text+0x58c): undefined reference to `__builtin_ia32_vec_ext_v8hi' . . . /root/tmp/ccYAq3IB.o:sse2-vec-4.c:(.text+0x613): more undefined references to `__builtin_ia32_vec_ext_v8hi' follow collect2: ld returned 1 exit sta

Re: Method to disable code SSE2 generation but still use -msse2

Specifics on the environment where the problem is seen: OS: Mandriva Linux release 2010.0 (Official) for x86_64 gcc (GCC) 4.4.1 Dual Dual Core Opteron 280. Arima HDAMAI motherboard. 64 bit targets only, 32 bit is OK. Regards, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility

Re: Method to disable code SSE2 generation but still use -msse2

here (retrieve only directory, no directory listings in pickup): http://saf.bio.caltech.edu/pub/pickup/gccprob.tar.gz I am not an assembler programmer. If one of you who is could have a look at the two .s files maybe we can get to the bottom of this. Thanks, David Mathog mat...@caltech.edu

Re: Method to disable code SSE2 generation but still use -msse2

e wrong values for s2 onto the call stack. Bizarre. Either I'm missing something or turning off SSE2 is uncovering a compiler bug. Thanks, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Re: Method to disable code SSE2 generation but still use -msse2

ck-boundary=4 3 -mincoming-stack-boundary=4 4 2 and 3 5 1 and 2 and 3 I guess the bigger question is why can an __m128d be passed on the call stack reliably when -msse2 is invoked, but not otherwise? If the compiler cannot do this reliably shouldn't it throw an error or warning? Thank

Re: Method to disable code SSE2 generation but still use -msse2

00 41124.234000 test s1.xDEBUG m_d_fd: 1234.635654 2134.334300 test s2.xDEBUG m_d_fd: 2344.235400 41124.234000 IN _mm_add_pd __ADEBUG m_d_fd: 1234.635654 2134.334300 __BDEBUG m_d_fd: 2344.235400 41124.234000 s1.xDEBUG m_d_fd: 1234.635654 2134.334300 s2.xDEBUG m_d_fd: 2344.235400 41124.234000 expected e0 e1 3578.871054 43258.568300 result r0 r1 3578.871054 43258.568300 Regards, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Re: Method to disable code SSE2 generation but still use -msse2

hout errors or warnings. gcc --version is: gcc (GCC) 4.2.3 (4.2.3-6mnb1) What does that compiler error mean? Thanks, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Method to disable code SSE2 generation but still use -msse2

n phase of compilation? Thank you, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech

Method to test all sse2 calls?

the right direction? Thank you, David Mathog mat...@caltech.edu Manager, Sequence Analysis Facility, Biology Division, Caltech