gcc/testsuite/gcc.target/powerpc/vsx-load-element-extend-longlong.c

   1 /*
   2    Test of vec_xl_sext and vec_xl_zext (load into rightmost
   3    vector element and zero/sign extend). */
   4
   5 /* { dg-do run { target power10_hw } } */
   6 /* { dg-do compile { target { ! power10_hw } } } */
   7 /* { dg-require-effective-target power10_ok } */
   8 /* { dg-require-effective-target int128 } */
   9 /* { dg-options "-mdejagnu-cpu=power10 -O3 -save-temps" } */
  10
  11 /* At time of writing, we also geenerate a .constrprop copy
  12    of the function, so our instruction hit count is
  13    twice of what we would otherwise expect.  */
  14 /* { dg-final { scan-assembler-times {\mlxvrdx\M} 4 } } */
  15 /* { dg-final { scan-assembler-times {\mlvdx\M} 0 } } */
  16
  17 #define NUM_VEC_ELEMS 2
  18 #define ITERS 16
  19
  20 /*
  21 Codegen at time of writing uses lxvrdx for both sign and
  22 zero extend tests. The sign extended test also uses
  23 mfvsr*d, mtvsrdd, vextsd2q.
  24
  25 0000000010000c90 <test_sign_extended_load>:
  26     10000c90:   da 18 04 7c     lxvrdx  vs0,r4,r3
  27     10000c94:   66 00 0b 7c     mfvsrd  r11,vs0
  28     10000c98:   66 02 0a 7c     mfvsrld r10,vs0
  29     10000c9c:   67 53 40 7c     mtvsrdd vs34,0,r10
  30     10000ca0:   02 16 5b 10     vextsd2q v2,v2
  31     10000ca4:   20 00 80 4e     blr
  32
  33 0000000010000cc0 <test_zero_extended_unsigned_load>:
  34     10000cc0:   db 18 44 7c     lxvrdx  vs34,r4,r3
  35     10000cc4:   20 00 80 4e     blr
  36 */
  37
  38 #include <altivec.h>
  39 #include <stdio.h>
  40 #include <inttypes.h>
  41 #include <string.h>
  42 #include <stdlib.h>
  43
  44 long long buffer[8];
  45 unsigned long verbose=0;
  46
  47 char initbuffer[64] = {
  48         0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
  49                         0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x80,
  50         0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
  51                         0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x90,
  52         0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
  53                         0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xa0,
  54         0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
  55                         0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xb0
  56 };
  57
  58 vector signed __int128 signed_expected[16] = {
  59         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x1817161514131211},
  60         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8918171615141312},
  61         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8a89181716151413},
  62         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8b8a891817161514},
  63         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8c8b8a8918171615},
  64         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8d8c8b8a89181716},
  65         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8e8d8c8b8a891817},
  66         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x8f8e8d8c8b8a8918},
  67         { (__int128) 0xffffffffffffffff << 64 | (__int128) 0x808f8e8d8c8b8a89},
  68         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x21808f8e8d8c8b8a},
  69         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x2221808f8e8d8c8b},
  70         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x232221808f8e8d8c},
  71         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x24232221808f8e8d},
  72         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x2524232221808f8e},
  73         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x262524232221808f},
  74         { (__int128) 0x0000000000000000 << 64 | (__int128) 0x2726252423222180}
  75 };
  76
  77 vector unsigned __int128 unsigned_expected[16] = {
  78         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x1817161514131211},
  79         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8918171615141312},
  80         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8a89181716151413},
  81         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8b8a891817161514},
  82         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8c8b8a8918171615},
  83         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8d8c8b8a89181716},
  84         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8e8d8c8b8a891817},
  85         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x8f8e8d8c8b8a8918},
  86         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x808f8e8d8c8b8a89},
  87         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x21808f8e8d8c8b8a},
  88         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x2221808f8e8d8c8b},
  89         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x232221808f8e8d8c},
  90         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x24232221808f8e8d},
  91         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x2524232221808f8e},
  92         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x262524232221808f},
  93         { (unsigned __int128) 0x0000000000000000  << 64 | (unsigned __int128) 0x2726252423222180}
  94 };
  95
  96 __attribute__ ((noinline))
  97 vector signed __int128 test_sign_extended_load(int RA, signed long long * RB) {
  98         return vec_xl_sext (RA, RB);
  99 }
 100
 101 __attribute__ ((noinline))
 102 vector unsigned __int128 test_zero_extended_unsigned_load(int RA, unsigned long long * RB) {
 103         return vec_xl_zext (RA, RB);
 104 }
 105
 106 int main (int argc, char *argv [])
 107 {
 108    int iteration=0;
 109    int mismatch=0;
 110    vector signed __int128 signed_result_v;
 111    vector unsigned __int128 unsigned_result_v;
 112 #if VERBOSE
 113    verbose=1;
 114    printf("%s %s\n", __DATE__, __TIME__);
 115 #endif
 116
 117   memcpy(&buffer, &initbuffer, sizeof(buffer));
 118
 119    if (verbose) {
 120            printf("input buffer:\n");
 121            for (int k=0;k<64;k++) {
 122                    printf("%x ",initbuffer[k]);
 123                    if (k && (k+1)%16==0) printf("\n");
 124            }
 125            printf("signed_expected:\n");
 126            for (int k=0;k<ITERS;k++) {
 127                 printf("%llx ",signed_expected[iteration][0]>>64);
 128                 printf(" %llx \n",signed_expected[iteration][0]&0xffffffffffffffff);
 129                    printf("\n");
 130            }
 131            printf("unsigned_expected:\n");
 132            for (int k=0;k<ITERS;k++) {
 133                 printf("%llx ",signed_expected[iteration][0]>>64);
 134                 printf(" %llx \n",signed_expected[iteration][0]&0xffffffffffffffff);
 135                    printf("\n");
 136            }
 137    }
 138
 139    for (iteration = 0; iteration < ITERS ; iteration++ ) {
 140       signed_result_v = test_sign_extended_load (iteration, (signed long long*)buffer);
 141       if (signed_result_v[0] != signed_expected[iteration][0] ) {
 142                 mismatch++;
 143                 printf("Unexpected results from signed load. i=%d \n", iteration);
 144                 printf("got:      %llx ",signed_result_v[0]>>64);
 145                 printf(" %llx \n",signed_result_v[0]&0xffffffffffffffff);
 146                 printf("expected: %llx ",signed_expected[iteration][0]>>64);
 147                 printf(" %llx \n",signed_expected[iteration][0]&0xffffffffffffffff);
 148                 fflush(stdout);
 149       }
 150    }
 151
 152    for (iteration = 0; iteration < ITERS ; iteration++ ) {
 153       unsigned_result_v = test_zero_extended_unsigned_load (iteration, (unsigned long long*)buffer);
 154       if (unsigned_result_v[0] != unsigned_expected[iteration][0]) {
 155                 mismatch++;
 156                 printf("Unexpected results from unsigned load. i=%d \n", iteration);
 157                 printf("got:      %llx ",unsigned_result_v[0]>>64);
 158                 printf(" %llx \n",unsigned_result_v[0]&0xffffffffffffffff);
 159                 printf("expected: %llx ",unsigned_expected[iteration][0]>>64);
 160                 printf(" %llx \n",unsigned_expected[iteration][0]&0xffffffffffffffff);
 161                 fflush(stdout);
 162       }
 163    }
 164
 165    if (mismatch) {
 166       printf("%d mismatches. \n",mismatch);
 167       abort();
 168    }
 169    return 0;
 170 }
 171