search for: intrinsci

lvqcl wrote: > It's not possible to use ia32/*.nasm code in 64-bit compiles. > There's still no 64-bit asm code in FLAC. I'm not familiar with asm too, > so I wrote SSE-accelerated code using intrinsics. > > This code uses two new preprocessor macros: > FLAC__CPU_X86_64 (analogous to FLAC__CPU_IA32) Ok, I have defined FLAC__CPU_X86_64 in configure.ac. > and

Erik de Castro Lopo wrote: > When should FLAC__HAS_X86INTRIN be defined? What header file should I be > checking for? Ah, should be checking for <x86intrin.h>. The rest seems to be coming together. Testing this now. Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/

lvqcl wrote: > It's not possible to use ia32/*.nasm code in 64-bit compiles. > There's still no 64-bit asm code in FLAC. I'm not familiar with asm too, > so I wrote SSE-accelerated code using intrinsics. Thanks for your work on this. I've applied these patches, updated the configure script to detect the required features and then tweaked things slightly. The biggest of

Erik de Castro Lopo wrote: > Erik de Castro Lopo wrote: > > > When should FLAC__HAS_X86INTRIN be defined? What header file should I be > > checking for? > > Ah, should be checking for <x86intrin.h>. > > The rest seems to be coming together. Testing this now. There is a segfault happening in the new code when compiling with -DDEBUG. Trying to track it down.

Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: > The biggest of these tweaks weas to disable the intrinsics version > fero FLAC__CPU_IA32 because I couldn't get this to compile on > i386-linux (and we have the nasm versions). Still open to re-enabling > this if someone can get it to work. I know you're a skilled programmer, but... maybe you forgot to add -msse

lvqcl wrote: > Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: > > > The biggest of these tweaks weas to disable the intrinsics version > > fero FLAC__CPU_IA32 because I couldn't get this to compile on > > i386-linux (and we have the nasm versions). Still open to re-enabling > > this if someone can get it to work. > > > I know you're a

Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: >> -msse for SSE code, -msse2 for SSE2 code, -msse4.1 for SSE4.1 code > > Yes, that was it. Brain fart. These flags were not needed on x86_64. > > Erik But now all C code is compiled with -msse2 and it won't work on older CPUs. Isn't it better to compile only necessary files with this flag?

It's not possible to use ia32/*.nasm code in 64-bit compiles. There's still no 64-bit asm code in FLAC. I'm not familiar with asm too, so I wrote SSE-accelerated code using intrinsics. This code uses two new preprocessor macros: FLAC__CPU_X86_64 (analogous to FLAC__CPU_IA32) and FLAC__HAS_X86INTRIN (analogous to FLAC__HAS_NASM) Patch for cpu.c/cpu.h adds CPU features (sse3, ssse3)