[LLVMbugs] [Bug 7674] New: Missing SIMD intrinsics

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7674

           Summary: Missing SIMD intrinsics
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chandlerc at gmail.com
                CC: llvmbugs at cs.uiuc.edu, echristo at gmail.com


We seem to be missing quite a few MMX / SSE intrinsics. I know little about
them, bet experimentation with a heavily vectorized bit of code yields this
test case. I hope it's still valid, but GCC at least doesn't complain.


% cat x.c                                                                       
#include <mmintrin.h>
#include <emmintrin.h>
#include <xmmintrin.h>
#include <pmmintrin.h>

void f(__m64 x, __m64 y) {
  (void)_m_punpcklwd(x, y);
  (void)_m_punpckhwd(x, y);
  (void)_m_punpcklbw(x, y);
  (void)_m_punpckhbw(x, y);
  (void)_m_punpckldq(x, y);
  (void)_m_punpckhdq(x, y);
  (void)_mm_cvt_pi2ps(_mm_setzero_ps(), x);
  (void)_mm_cvt_ps2pi(_mm_setzero_ps());
  int i = 42;
  (void)_m_from_int(i);
  (void)_m_to_int(x);
  (void)_m_pand(x, y);
  (void)_m_packuswb(x, y);
  (void)_m_pavgb(x, y);
  (void)_m_pshufw(x, 0);
  (void)_m_psllqi(x, i);
  (void)_m_psrlqi(x, i);
  (void)_m_psllwi(x, i);
  (void)_m_psrlwi(x, i);
  (void)_m_por(x, y);
  (void)_m_pxor(x, y);
  (void)_m_pmullw(x, y);
  (void)_m_pmulhw(x, y);
  (void)_m_paddw(x, y);
  (void)_m_pmaddwd(x, y);
  (void)_m_paddusb(x, y);
  (void)_m_paddd(x, y);
  (void)_m_psubw(x, y);
  (void)_m_psubusb(x, y);
  (void)_m_pmaxsw(x, y);
  (void)_m_pminub(x, y);
  (void)_m_pmaxub(x, y);
  (void)_m_pcmpeqb(x, y);
  (void)_m_pcmpgtb(x, y);
  _m_empty();
}

% gcc -Wall -Werror -march=native -fsyntax-only x.c                             

% ./bin/clang -Werror -march=native -fsyntax-only -ferror-limit=999 x.c
x.c:7:9: error: implicit declaration of function '_m_punpcklwd' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpcklwd(x, y);
        ^
x.c:8:9: error: implicit declaration of function '_m_punpckhwd' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpckhwd(x, y);
        ^
x.c:9:9: error: implicit declaration of function '_m_punpcklbw' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpcklbw(x, y);
        ^
x.c:10:9: error: implicit declaration of function '_m_punpckhbw' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpckhbw(x, y);
        ^
x.c:11:9: error: implicit declaration of function '_m_punpckldq' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpckldq(x, y);
        ^
x.c:12:9: error: implicit declaration of function '_m_punpckhdq' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_punpckhdq(x, y);
        ^
x.c:13:9: error: implicit declaration of function '_mm_cvt_pi2ps' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_mm_cvt_pi2ps(_mm_setzero_ps(), x);
        ^
x.c:14:9: error: implicit declaration of function '_mm_cvt_ps2pi' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_mm_cvt_ps2pi(_mm_setzero_ps());
        ^
x.c:16:9: error: implicit declaration of function '_m_from_int' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_from_int(i);
        ^
x.c:17:9: error: implicit declaration of function '_m_to_int' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_to_int(x);
        ^
x.c:18:9: error: implicit declaration of function '_m_pand' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pand(x, y);
        ^
x.c:19:9: error: implicit declaration of function '_m_packuswb' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_packuswb(x, y);
        ^
x.c:20:9: error: implicit declaration of function '_m_pavgb' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pavgb(x, y);
        ^
x.c:21:9: error: implicit declaration of function '_m_pshufw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pshufw(x, 0);
        ^
x.c:22:9: error: implicit declaration of function '_m_psllqi' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_psllqi(x, i);
        ^
x.c:23:9: error: implicit declaration of function '_m_psrlqi' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_psrlqi(x, i);
        ^
x.c:24:9: error: implicit declaration of function '_m_psllwi' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_psllwi(x, i);
        ^
x.c:25:9: error: implicit declaration of function '_m_psrlwi' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_psrlwi(x, i);
        ^
x.c:26:9: error: implicit declaration of function '_m_por' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_por(x, y);
        ^
x.c:27:9: error: implicit declaration of function '_m_pxor' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pxor(x, y);
        ^
x.c:28:9: error: implicit declaration of function '_m_pmullw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pmullw(x, y);
        ^
x.c:29:9: error: implicit declaration of function '_m_pmulhw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pmulhw(x, y);
        ^
x.c:30:9: error: implicit declaration of function '_m_paddw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_paddw(x, y);
        ^
x.c:31:9: error: implicit declaration of function '_m_pmaddwd' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_pmaddwd(x, y);
        ^
x.c:32:9: error: implicit declaration of function '_m_paddusb' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_paddusb(x, y);
        ^
x.c:33:9: error: implicit declaration of function '_m_paddd' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_paddd(x, y);
        ^
x.c:34:9: error: implicit declaration of function '_m_psubw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_psubw(x, y);
        ^
x.c:35:9: error: implicit declaration of function '_m_psubusb' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_psubusb(x, y);
        ^
x.c:36:9: error: implicit declaration of function '_m_pmaxsw' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pmaxsw(x, y);
        ^
x.c:37:9: error: implicit declaration of function '_m_pminub' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pminub(x, y);
        ^
x.c:38:9: error: implicit declaration of function '_m_pmaxub' is invalid in C99
[-Wimplicit-function-declaration]
  (void)_m_pmaxub(x, y);
        ^
x.c:39:9: error: implicit declaration of function '_m_pcmpeqb' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_pcmpeqb(x, y);
        ^
x.c:40:9: error: implicit declaration of function '_m_pcmpgtb' is invalid in
C99 [-Wimplicit-function-declaration]
  (void)_m_pcmpgtb(x, y);
        ^
x.c:41:3: error: implicit declaration of function '_m_empty' is invalid in C99
[-Wimplicit-function-declaration]
  _m_empty();
  ^
34 errors generated.

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