gnu/dist/gcc4/gcc/testsuite/gcc.target/alpha/pr19518.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -mcpu=ev67" } */
   3
   4 typedef short INT16;
   5 typedef unsigned int CARD32;
   6 typedef unsigned short CARD16;
   7 typedef unsigned char CARD8;
   8 typedef struct _Picture *PicturePtr;
   9 typedef int FbStride;
  10 typedef unsigned long __m64;
  11 extern __m64 load8888 (__m64);
  12 static __inline __m64 _mm_adds_pu8(__m64 __m1, __m64 __m2)
  13 {
  14     return __m1 + __builtin_alpha_minsb8(__m2, ~__m1);
  15 }
  16 static __inline __m64 _mm_packs_pu16(__m64 __m1, __m64 __m2)
  17 {
  18     __m1 = __builtin_alpha_minuw4(__m1, 0x00ff00ff00ff00ff);
  19     __m2 = __builtin_alpha_minuw4(__m2, 0x00ff00ff00ff00ff);
  20     return __m1 | (__m2 << 32);
  21 }
  22 typedef unsigned long long ullong;
  23 static __inline__ __m64 pix_multiply(__m64 a)
  24 {
  25     if (a)
  26         return a;
  27 }
  28 static __inline__ __m64 over(__m64 src, __m64 srca, __m64 dest)
  29 {
  30     return _mm_adds_pu8(src, pix_multiply(dest));
  31 }
  32
  33 void fbCompositeSolid_nx8888mmx(CARD8 op, PicturePtr pSrc, PicturePtr pMask,
  34                                 INT16 yDst, CARD16 width, CARD16 height)
  35 {
  36     CARD32 src;
  37     CARD32 *dstLine, *dst;
  38     CARD16 w;
  39     FbStride dstStride;
  40     __m64 vsrc, vsrca;
  41     vsrc = load8888(src);
  42     while (height--) {
  43         dst = dstLine;
  44         dstLine += dstStride;
  45         while (w && (unsigned long) dst & 7) {
  46             *dst = _mm_packs_pu16(_mm_adds_pu8(vsrc, load8888(*dst)),
  47                                   _mm_setzero_si64());
  48             dst++;
  49         }
  50         while (w >= 2) {
  51             __m64 dest0, dest1;
  52             *(__m64 *) dst = _mm_packs_pu16(dest0, dest1);
  53             w -= 2;
  54         }
  55         while (w) {
  56             *dst = _mm_packs_pu16(_mm_adds_pu8(vsrc, pix_multiply(0)), 0);
  57             w--;
  58         }
  59     }
  60 }