gcc/testsuite/gcc.target/nios2/custom-fp-conversion.c

   1 /* Test generation of conversion custom instructions.  */
   2
   3 /* { dg-do compile } */
   4 /* { dg-options "-O1 -ffinite-math-only -funsafe-math-optimizations -fno-math-errno" } */
   5
   6 /* -O1 in the options is significant.  Without it FP operations may not be
   7    optimized to custom instructions.  Also, -fno-math-errno is required
   8    to inline lroundf. */
   9
  10 #include <stdio.h>
  11 #include <math.h>
  12
  13 #pragma GCC target ("custom-frdxhi=40")
  14 #pragma GCC target ("custom-frdxlo=41")
  15 #pragma GCC target ("custom-frdy=42")
  16 #pragma GCC target ("custom-fwrx=43")
  17 #pragma GCC target ("custom-fwry=44")
  18
  19 #pragma GCC target ("custom-fextsd=100")
  20 #pragma GCC target ("custom-fixdi=101")
  21 #pragma GCC target ("custom-fixdu=102")
  22 #pragma GCC target ("custom-fixsi=103")
  23 #pragma GCC target ("custom-fixsu=104")
  24 #pragma GCC target ("custom-floatid=105")
  25 #pragma GCC target ("custom-floatis=106")
  26 #pragma GCC target ("custom-floatud=107")
  27 #pragma GCC target ("custom-floatus=108")
  28 #pragma GCC target ("custom-ftruncds=109")
  29 #pragma GCC target ("custom-round=110")
  30
  31
  32 typedef struct data {
  33   double fextsd;
  34   int fixdi;
  35   unsigned fixdu;
  36   int fixsi;
  37   unsigned fixsu;
  38   double floatid;
  39   float floatis;
  40   double floatud;
  41   float floatus;
  42   float ftruncds;
  43   int round;
  44 } data_t;
  45
  46 void
  47 custom_fp (int i, unsigned u, float f, double d, data_t *out)
  48 {
  49   out->fextsd = (double) f;
  50   out->fixdi = (int) d;
  51   out->fixdu = (unsigned) d;
  52   out->fixsi = (int) f;
  53   out->fixsu = (unsigned) f;
  54   out->floatid = (double) i;
  55   out->floatis = (float) i;
  56   out->floatud = (double) u;
  57   out->floatus = (float) u;
  58   out->ftruncds = (float) d;
  59   out->round = lroundf (f);
  60 }
  61
  62 /* { dg-final { scan-assembler "custom\\t100, .* # fextsd .*" } } */
  63 /* { dg-final { scan-assembler "custom\\t101, .* # fixdi .*" } } */
  64 /* { dg-final { scan-assembler "custom\\t102, .* # fixdu .*" } } */
  65 /* { dg-final { scan-assembler "custom\\t103, .* # fixsi .*" } } */
  66 /* { dg-final { scan-assembler "custom\\t104, .* # fixsu .*" } } */
  67 /* { dg-final { scan-assembler "custom\\t105, .* # floatid .*" } } */
  68 /* { dg-final { scan-assembler "custom\\t106, .* # floatis .*" } } */
  69 /* { dg-final { scan-assembler "custom\\t107, .* # floatud .*" } } */
  70 /* { dg-final { scan-assembler "custom\\t108, .* # floatus .*" } } */
  71 /* { dg-final { scan-assembler "custom\\t109, .* # ftruncds .*" } } */
  72 /* { dg-final { scan-assembler "custom\\t110, .* # round .*" } } */