GCC

“To get a GCC cross-compile for a given set of architecture triples, one needs a complete graph of GCC toolchains”

“Does Gentoo also recompile every C/C++ library in the dependency tree every time GCC pushes a minor version bump?”

“I'd crawl over an acre of 'Visual This++' and 'Integrated Development That' to get to gcc, Emacs, and gdb.”

“Some newer GCC, and upcoming new x86-64v3 targets will all have some pretty nice wins too.”

“old and reliable piece of software built on abstractions that have stood the test of time”

“GCC's optimization info can be rather inscrutable because it's in terms of compiler internal nomenclature.”

“I can't remember the last time GCC emitted code that just flat out called the wrong function.”

“GCC has historically been a bit of a pig about -Os, my favorite example is on x86 where it will emit a runtime divide”

“it's hugely encouraging to have the stewards of this project contemplate, and then determine to have this policy”

“their mutually compatible, but completely standards non-conformant extensions that make writing for embedded reasonable”

“it was useful compiling with Visual C++ and gcc to shake out any iffy syntax that worked in one but not the other”

“Anyone who uses -ffast-math or similar options for compiling a program that is not intended for graphics or ML/AI, where errors supposedly do not matter, makes an unforgivable mistake.”

“If you passed the actual '__m128' down the function call chain instead, clang and gcc would then do the right thing.”

“bootstrapping older GCC and LLVM versions on modern systems is far from trivial and typically requires patching”

“Another really helpful tool is writing something in C/C++, and compiling with "gcc -O1 -S file.c" to see the assembly gcc generated”

“If i cannot use GCC i cannot compile to half the embedded platforms i work with on a daily basis.”

“Well it support more targets then LLVM and in most cases it generates similar if not better executable.”

“I ran into some issues with some programs (could not compile them with recent GCC, but older GCC worked fine)”

“If you build any current gcc version, you must just choose the option of having ada among the available languages and all will work smoothly.”

“-Wstrict-overflow=4 is fun: it complains about risky things the gcc optimizer did to my code.”

“GCC -Wall what tells me about most implicit casts going on (which I mostly ignore). But not all of them.”

“They were much more successful in userland (coreutils, gcc and the toolchain, gdb, Emacs, to name a few).”

“llvm/gcc won the compiler world because they blew the codegen of proprietary compilers out of the water”

“GCC and Clang are worth much much more because they are battle-tested compilers that we understand and know work, even in a multitude of corner cases, over decades.”

“Getting all of LLVM mesa linux cmake ninja glibc gcc binutils xorg KDE to work is more work than in 2005 or 2010.”

“its been years since I had a build failure, and I even accept several on ~amd64. (with gcc)”

“sooner or later one will need both `clang` and `gcc`, because they're equivalent only in theory”

“The compiler reliably and deterministically produces code that does exactly what you specified in the source code.”

“GCC takes this hint and uses it in the optimizer, so you cannot have both a compile time and a run time check”

“You can do that in GCC now (-ftrivial-auto-var-init=zero). There are a few projects that decided to enable this by default.”

“GCC's -fopt-... flags can give you a lot of information on vectorization and other optimizations”

“gcc was and is an incredible achievement, but it is traditionally considered difficult to implement many modern compiler techqniques in it”

“If there's one thing compilers do well is pattern match on code patterns and replace with more efficient ones”

“a GPL piece of software that has been a part of the Linux core for almost all of Linux's existence”

“he specifically opposed exporting the AST, which makes a whole bunch of useful programming tools difficult or impossible”

“I have zero problems bootstrapping a recent gcc with all bells and whistles on my setup.”

“in normal C++ there are GCC or Clang (I forget which) extensions for detecting threading issues”

“GCC generates branchless code for 'is_divisible_by_6', which is just worse than 'is_divisible_by_6_optimal' in all cases.”

“GCC and LLVM can find some amazing optimizations, but they also consistently miss very obvious optimization opportunities”

“the GCC, OpenWatcom, and DJGPP compilers the FreeDOS folks recommend are additionally free software, which is of real value to some of us”