gcc/testsuite/gdc.dg/torture/simd21727.d

   1 // https://issues.dlang.org/show_bug.cgi?id=21727
   2 // { dg-additional-options "-mavx" { target avx_runtime } }
   3 // { dg-do run { target { avx_runtime || vect_sizes_16B_8B } } }
   4 // { dg-skip-if "needs gcc/config.d" { ! d_runtime } }
   5 import core.simd;
   6
   7 @nogc nothrow pure @safe:
   8
   9 struct Float4
  10 {
  11     float4 mVector;
  12
  13     pragma(inline, false) ref typeof(this) doubleInPlace() return
  14     @nogc nothrow pure @safe
  15     {
  16         mVector = mVector + mVector;
  17         return this;
  18     }
  19 }
  20
  21 pragma(inline, false) Float4 identity(Float4 a)
  22 {
  23     return a;
  24 }
  25
  26 pragma(inline, true) Float4 twoTimes(const ref Float4 a)
  27 {
  28     return Float4(a.mVector + a.mVector);
  29 }
  30
  31 pragma(inline, false) Float4 fourTimes(const Float4 a)
  32 {
  33     auto x = identity(a);
  34     auto y = x.doubleInPlace(); // This crashed in dmd.backend.cgxmm.xmmload.
  35     auto z = twoTimes(y);
  36     return z;
  37 }
  38
  39 void main()
  40 {
  41     const c = fourTimes(Float4([5,7,11,13]));
  42     assert(c.mVector.array == [20, 28, 44, 52]);
  43 }