Hi, I'm having trouble based on available docs like
https://gcc.gnu.org/onlinedocs/gccint/LTO.html
in understanding just what the gcc LTO framework is
intended to be architecturally capable of.
As a concrete motivating example, I have a 32K embedded
program about 5% of which consists of seque
Starting with gcc 4.9, -O2 implicitly invokes
-fisolate-erroneous-paths-dereference:
which
https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
documents as
Detect paths that trigger erroneous or undefined behavior due to
dereferencing a null pointer. Isolate those paths f
(Thanks to everyone for the helpful feedback!)
Daniel Gutson wrote:
> what about then two warnings (disabled by default), one intended to
> tell the user each time the compiler removes a conditional
> (-fdelete-null-pointer-checks)
> and another intended to tell the user each time the compiler
