Re:When Optimising Code, Measure
by reitzensteinm on Tuesday January 16, 2024 @07:17AM
(#39012473)
Not sure why you're being downvoted, because you're right.
To back up parent's point, if you compile the code and the resulting assembly is a direct translation, renaming will break the dependency and the CPU will execute the instructions in parallel. Write after read hazard is the applicable section:
Re:When Optimising Code, Measure
by gpderetta on Tuesday January 16, 2024 @08:00AM
(#39012797)
[off topic, but I expect that some amount of downvotes are people misclicking; I know that I found myself correcting many of my own, I wonder how many I don't catch]
To back up parent's point, if you compile the code and the resulting assembly is a direct translation, renaming will break the dependency and the CPU will execute the instructions in parallel. Write after read hazard is the applicable section:
https://en.wikipedia.org/wiki/Register_renaming