gcc/testsuite/gcc.target/i386/sse4_1-phminposuw-2.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O3 -msse4.1 -mno-avx2" } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse4_1-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse4_1_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 extern void abort (void);
  16
  17 #define N 1024
  18 short a[N], c, e;
  19 unsigned short b[N], d, f;
  20
  21 __attribute__((noinline)) short
  22 vecsmax (void)
  23 {
  24   int i;
  25   short r = -32768;
  26   for (i = 0; i < N; ++i)
  27     if (r < a[i]) r = a[i];
  28   return r;
  29 }
  30
  31 __attribute__((noinline)) unsigned short
  32 vecumax (void)
  33 {
  34   int i;
  35   unsigned short r = 0;
  36   for (i = 0; i < N; ++i)
  37     if (r < b[i]) r = b[i];
  38   return r;
  39 }
  40
  41 __attribute__((noinline)) short
  42 vecsmin (void)
  43 {
  44   int i;
  45   short r = 32767;
  46   for (i = 0; i < N; ++i)
  47     if (r > a[i]) r = a[i];
  48   return r;
  49 }
  50
  51 __attribute__((noinline)) unsigned short
  52 vecumin (void)
  53 {
  54   int i;
  55   unsigned short r = 65535;
  56   for (i = 0; i < N; ++i)
  57     if (r > b[i]) r = b[i];
  58   return r;
  59 }
  60
  61 static void
  62 TEST (void)
  63 {
  64   int i;
  65   for (i = 0; i < N; ++i)
  66     {
  67       a[i] = i - N / 2;
  68       b[i] = i + 32768 - N / 2;
  69     }
  70   a[N / 3] = N;
  71   a[2 * N / 3] = -N;
  72   b[N / 5] = 32768 + N;
  73   b[4 * N / 5] = 32768 - N;
  74   if (vecsmax () != N || vecsmin () != -N)
  75     abort ();
  76   if (vecumax () != 32768 + N || vecumin () != 32768 - N)
  77     abort ();
  78 }