On Sunday, 23 February 2014 at 20:40:44 UTC, Walter Bright wrote:
Generally, when I optimize at that level, I have a window open on the assembler output of the compiler and I go back and forth on the source code until I get the shape of the assembler I need. Having compiler messages wouldn't be very helpful.
Ok, you are at this point, check assembly and find out that compiler ignores your recommendation with no error messages / explanations. Next step?
