gcc-4.9/gcc/testsuite/gcc.target/mips/oddspreg-4.c


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/* Check that we disable odd-numbered single precision registers and can
   still generate code.  */
/* { dg-options "-mabi=32 -mno-odd-spreg -mhard-float" } */

#if _MIPS_SPFPSET != 16
#error "Incorrect number of single-precision registers reported"
#endif

float a;
float
foo ()
{
  float b = a + 1.0f;
  return b;
}