I wanted to run some code through IACA analyzer to see how many uops it was using-- I started with a simple function to see if it was working.. Unfortunately when I insert the macros IACA says to ...

tl;dr: I have two functionally equivalent C codes that I compile with Clang (the fact that it's C code doesn't matter much; only the assembly is interesting I think), and IACA tells me that one sho...

I have found something unexpected (to me) using the Intel® Architecture Code Analyzer (IACA). The following instruction using [base+index] addressing addps xmm1, xmmword ptr [rsi+rax*1] does n...

I've found this interesting and powerful tool called IACA (the Intel Architecture Code Analyzer), but I have trouble understanding it. What can I do with it, what are its limitations and how can I:...