Disappointing math performance compared to GDC

[Gabor Mezo via digitalmars-d-ldc]

Here are the abs/min/max functions:

float nfAbs(float num) nothrow
{
     return num < 0.0f ? -num : num;
}

float nfMax(float num1, float num2) nothrow
{
     return num1 < num2 ? num2 : num1;
}

float nfMin(float num1, float num2) nothrow
{
     return num2 < num1 ? num2 : num1;
}

Didn't inlined too. Why?