gcc/testsuite/gcc.target/arm/armv8_2-fp16-conv-1.c

   1 /* { dg-do compile }  */
   2 /* { dg-require-effective-target arm_v8_2a_fp16_scalar_ok }  */
   3 /* { dg-options "-O2" }  */
   4 /* { dg-add-options arm_v8_2a_fp16_scalar }  */
   5
   6 /* Test ARMv8.2 FP16 conversions.  */
   7 #include <arm_fp16.h>
   8
   9 float
  10 f16_to_f32 (__fp16 a)
  11 {
  12   return (float)a;
  13 }
  14
  15 float
  16 f16_to_pf32 (__fp16* a)
  17 {
  18   return (float)*a;
  19 }
  20
  21 short
  22 f16_to_s16 (__fp16 a)
  23 {
  24   return (short)a;
  25 }
  26
  27 short
  28 pf16_to_s16 (__fp16* a)
  29 {
  30   return (short)*a;
  31 }
  32
  33 /* { dg-final { scan-assembler-times {vcvtb\.f32\.f16\ts[0-9]+, s[0-9]+} 4 } }  */
  34
  35 __fp16
  36 f32_to_f16 (float a)
  37 {
  38   return (__fp16)a;
  39 }
  40
  41 void
  42 f32_to_pf16 (__fp16* x, float a)
  43 {
  44   *x = (__fp16)a;
  45 }
  46
  47 __fp16
  48 s16_to_f16 (short a)
  49 {
  50   return (__fp16)a;
  51 }
  52
  53 void
  54 s16_to_pf16 (__fp16* x, short a)
  55 {
  56   *x = (__fp16)a;
  57 }
  58
  59 /* { dg-final { scan-assembler-times {vcvtb\.f16\.f32\ts[0-9]+, s[0-9]+} 4 } }  */
  60
  61 float
  62 s16_to_f32 (short a)
  63 {
  64   return (float)a;
  65 }
  66
  67 /* { dg-final { scan-assembler-times {vcvt\.f32\.s32\ts[0-9]+, s[0-9]+} 3 } }  */
  68
  69 short
  70 f32_to_s16 (float a)
  71 {
  72   return (short)a;
  73 }
  74
  75 /* { dg-final { scan-assembler-times {vcvt\.s32\.f32\ts[0-9]+, s[0-9]+} 3 } }  */
  76
  77 unsigned short
  78 f32_to_u16 (float a)
  79 {
  80   return (unsigned short)a;
  81 }
  82
  83 /* { dg-final { scan-assembler-times {vcvt\.u32\.f32\ts[0-9]+, s[0-9]+} 1 } }  */
  84
  85 short
  86 f64_to_s16 (double a)
  87 {
  88   return (short)a;
  89 }
  90
  91 /* { dg-final { scan-assembler-times {vcvt\.s32\.f64\ts[0-9]+, d[0-9]+} 1 } }  */
  92
  93 unsigned short
  94 f64_to_u16 (double a)
  95 {
  96   return (unsigned short)a;
  97 }
  98
  99 /* { dg-final { scan-assembler-times {vcvt\.s32\.f64\ts[0-9]+, d[0-9]+} 1 } }  */
 100
 101