Those of you looking for free toolchains may know about llvm, and by association, clang. If you’ve ever tried finding an embedded development gcc toolchain, you likely know that it’s a terrible headache (particularly on ARM). Is clang ready for serious embedded development projects, or is it “not quite there yet”? What toolchain decision/build problems does going with clang solve, and what is left unsolved?

I know people who are experimenting with switching from GCC to clang. I think clang is more uniform and controlled. Never tried myself though.