Hi, Andrew Haley <aph@xxxxxxxxxx> skribis: > On 01/06/17 13:45, Ludovic Courtès wrote: >> A proprietary compiler stores information about optimizations it has >> made (loop unrolling, vectorization, etc.) in a ‘.debug_opt_report’ ELF >> section. This information can later be exploited by performance >> analysis tools, which can help understand performance. >> >> Has there been any thought on implementing something similar in GCC? > > It's all in the -fverbose-asm output. It would be almost trivial > to output that into a .debug_opt_report section. Yes (modulo issues such as finding a compact and stable representation I suppose), and it would be a useful tool. Ludo’.
