How to test C++ modules with godbolt (compiler explorer)? Currently you cannot A typical modules example needs multiple source files Eg in your case, main cpp test cpp This is not currently supported in GodBolt I tried building using the raw github content on Godbolt But it does not work I have opened this request Also see this ongoing request which seemingly is under process
optimization - Why does this code generate much more assembly than . . . But Godbolt adds an option to the compiler to preserve frame pointer You can read more about why this is done here If you compile your code locally with rustc -O --crate-type=lib foo rs --emit asm -C "llvm-args=-x86-asm-syntax=intel" , you get this output:
How to generate godbolt like clean assembly locally? For the record, it is possible (and apparently not too hard) to set up a local install of Matt Godbolt's Compiler Explorer stuff, so you can use that to explore asm output for files that are part of existing large projects with their #include dependencies and everything If you already have some asm output, @Waqar's answer looks useful
How are we supposed to post godbolt links now that URL shortening is . . . Then godbolt doesn't have to worry about backing up the shortening map, and can still leave that to google However, this doesn't help anyone, because spammers will just start using godbolt! The way godbolt currently works, it doesn't have to save user state at all Using URLs that don't contain the full information content of the code and
assembly - Why doesnt the Rust optimizer remove those useless . . . The short answer: Godbolt adds a -C debuginfo=1 flag which forces the optimizer to keep all instructions managing the frame pointer Rust removes those instructions too when compiling with optimization and without debug information
Printf output on godbolt using xtensa compiler? - Stack Overflow The compiler explorer doesn't have the capabilities to run on all platforms that there are compilers for If you donate an ESP32 system (or more) and figure out a way to connect it to the cloud system that runs the compiler explorer, then you're more than welcome to add that support
How to disable LLVM optimisations for rust in Godbolt (for asm . . . I am learning about rust and asm, and using godbolt for this I have a program that looks like: pub fn test() -> i32 { let a = 1; let b = 2; let c = 3; a + b + c } And I would expect the output to look something like