/* { dg-do compile } */ /* { dg-options "-O3 -march=armv8.2-a+nofp16 -fpermitted-flt-eval-methods=c11" } */ #pragma GCC target ("arch=armv8.2-a+nofp16") _Float16 foo_v8 (_Float16 x, _Float16 y, unsigned int *eval) { *eval = __FLT_EVAL_METHOD__; return x * x + y; } __fp16 bar_v8 (__fp16 x, __fp16 y, unsigned int *eval) { *eval = __FLT_EVAL_METHOD__; return x * x + y; } #pragma GCC target ("arch=armv8.2-a+fp16") _Float16 foo_v82 (_Float16 x, _Float16 y, unsigned int *eval) { *eval = __FLT_EVAL_METHOD__; return x * x + y; } __fp16 bar_v82 (__fp16 x, __fp16 y, unsigned int *eval) { *eval = __FLT_EVAL_METHOD__; return x * x + y; } /* Test that we merge to FMA operations. This indicates that we are not making extraneous conversions between modes. */ /* Three FMA operations in 32-bit precision, from foo_v8, bar_v8, bar_v82. */ /* { dg-final { scan-assembler-times "fmadd\ts\[0-9\]\+" 3 } } */ /* One FMA operation in 16-bit precision, from foo_v82. */ /* { dg-final { scan-assembler-times "fmadd\th\[0-9\]\+" 1 } } */ /* Test that in -fpermitted-flt-eval-methods=c11 we don't set the __FLT_EVAL_METHOD__ to anything other than 0. */ /* { dg-final { scan-assembler-times "str\twzr" 4 } } */