hi,
there's this code in CompilerInvocation.cpp:
Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
: CodeGenOptions::OnlyAlwaysInlining;
ie. for all optimization levels below -O2 only the OnlyAlwaysInlining pass
is run. why is it so? it makes more sense to me to run NormalInlining
at -O1 too.
can someone shed some light on this?
thank you, roman
Hi Roman,
-O1 is intended to only do simple intraprocedural optimizations. Inlining isn't one of those. What is your use case for -O1?
-Chris
freebsd bootloader. its size is smallest with -O1 + inlining with
-inline-threshold=3
I'll deal with my issue in other way, thnx!
roman
-O1 is intended to only do simple intraprocedural optimizations. Inlining isn't one of those. What is your use case for -O1?
freebsd bootloader. its size is smallest with -O1 + inlining with
-inline-threshold=3
I'll deal with my issue in other way, thnx!
Something is wrong with our -Os 
roman
Cheers,
Rafael