Hello everyone,
This patch adds intrinsics for FMA instruction set along with tests for them.
Bootstraps and passes make check (including make check on simulator
for new runtime tests).

Here is a Changelog:

2011-08-15  Ilya Tocar  <ilya.tocar@intel.com>

              * config/i386/fmaintrin.h: New.
              * config.gcc: Add fmaintrin.h.
              * config/i386/i386.c
              * <ix86_builtins> (IX86_BUILTIN_VFMADDSS3): New.
              (IX86_BUILTIN_VFMADDSD3): Likewise.
              (X86_BUILTIN_VFNMADDSS3): Likewise.
              (X86_BUILTIN_VFNMADDSD3): Likewise.
              (X86_BUILTIN_VFMSUBSS3): Likewise.
              (X86_BUILTIN_VFMSUBSD3): Likewise.
              (X86_BUILTIN_VFNMSUBSS3): Likewise.
              (X86_BUILTIN_VFNMSUBSD3): Likewise.
              (X86_BUILTIN_VFMSUBPS): Likewise.
              (X86_BUILTIN_VFMSUBPD): Likewise.
              (X86_BUILTIN_VFMSUBPS256): Likewise.
              (X86_BUILTIN_VFMSUBPD256): Likewise.
              (X86_BUILTIN_VFNMADDPS): Likewise.
              (X86_BUILTIN_VFNMADDPD): Likewise.
              (X86_BUILTIN_VFNMADDPS256): Likewise.
              (X86_BUILTIN_VFNMADDPD256): Likewise.
              (X86_BUILTIN_VFNMSUBPS): Likewise.
              (X86_BUILTIN_VFNMSUBPD): Likewise.
              (X86_BUILTIN_VFNMSUBPS256): Likewise.
              (X86_BUILTIN_VFNMSUBPD256): Likewise.
              (X86_BUILTIN_VFMSUBADDPS): Likewise.
              (X86_BUILTIN_VFMSUBADDPD): Likewise.
              (X86_BUILTIN_VFMSUBADDPS256): Likewise.
              (X86_BUILTIN_VFMSUBADDPD256): Likewise.
              * config/i386/sse.md (fmai_fnmadd_<mode>): New.
              (fmai_fmsub_<mode>): Likewise.
              (fmai_fnmsub_<mode>): Likewise.
              (fmai_fmadd_s_<mode>): Likewise.
              (fmai_vmfmadd_s_<mode>): Likewise.
              (fmai_vmfmsub_s_<mode>): Likewise.
              (fmai_vmfnmadd_s_<mode>): Likewise.
              (fmai_vmfnmsub_s_<mode>): Likewise.
              (*fmai_fmadd_s_<mode>): Likewise.
              (*fmai_fmsub_s_<mode>): Likewise.
              (*fmai_fnmadd_s_<mode>): Likewise.
              (*fmai_fnmsub_s_<mode>): Likewise.
              (fmsubadd_<mode>): Likewise.
              * config/i386/x86intrin.h: Add fmaintrin.h.

And Changelog for testsuite:

2011-08-15  Ilya Tocar <ilya.tocar@intel.com>

              * gcc.target/i386/fma-check.h: New.
              * gcc.target/i386/fma-256-fmaddXX.c: New testcase.
              * gcc.target/i386/fma-256-fmaddsubXX.c: Likewise.
              * gcc.target/i386/fma-256-fmsubXX.c: Likewise.
              * gcc.target/i386/fma-256-fmsubaddXX.c: Likewise.
              * gcc.target/i386/fma-256-fnmaddXX.c: Likewise.
              * gcc.target/i386/fma-256-fnmsubXX.c: Likewise.
              * gcc.target/i386/fma-fmaddXX.c: Likewise.
              * gcc.target/i386/fma-fmaddsubXX.c: Likewise.
              * gcc.target/i386/fma-fmsubXX.c: Likewise.
              * gcc.target/i386/fma-fmsubaddXX.c: Likewise.
              * gcc.target/i386/fma-fnmaddXX.c: Likewise.
              * gcc.target/i386/fma-fnmsubXX.c: Likewise.
              * gcc.target/i386/fma-compile.c: Likewise.
              * gcc.target/i386/i386.exp (check_effective_target_fma): New.

Is it OK for trunk?
---
Best regards,
Ilya Tocar