No LLC on Windows?

Question

I wanted to play around with LLVM IR and installed latest LLVM v4 (on my Windows PC) but I cannot find llc in the among installed files (looked in 'bin' folder and in all others).

Wondering if this tool is not available or maybe it got deprecated or what?

Here is the content of my bin folder:

04/30/2017 07:46 PM .

04/30/2017 07:46 PM ..

03/09/2017 09:50 PM 63,566,848 clang++.exe

03/09/2017 09:35 PM 2,357,248 clang-apply-replacements.exe

03/09/2017 09:37 PM 17,489,408 clang-change-namespace.exe

03/09/2017 09:35 PM 52,584,448 clang-check.exe

03/09/2017 09:50 PM 63,566,848 clang-cl.exe

03/09/2017 09:50 PM 63,566,848 clang-cpp.exe

03/09/2017 09:35 PM 2,380,800 clang-format.exe

03/09/2017 09:35 PM 20,820,480 clang-import-test.exe

03/09/2017 09:37 PM 17,238,528 clang-include-fixer.exe

03/09/2017 09:34 PM 3,140,096 clang-offload-bundler.exe

03/09/2017 09:37 PM 17,924,608 clang-query.exe

03/09/2017 09:35 PM 17,438,208 clang-rename.exe

03/09/2017 09:35 PM 17,171,456 clang-reorder-fields.exe

03/09/2017 09:37 PM 22,490,624 clang-tidy.exe

03/09/2017 09:35 PM 63,566,848 clang.exe

03/09/2017 09:37 PM 17,251,840 find-all-symbols.exe

11/08/2016 09:50 AM 20,626 git-clang-format

03/09/2017 09:50 PM 44,386,816 ld.lld.exe

03/09/2017 09:38 PM 55,871,488 libclang.dll

03/09/2017 09:50 PM 574,976 libiomp5md.dll

03/09/2017 09:29 PM 574,976 libomp.dll

03/09/2017 09:50 PM 44,386,816 lld-link.exe

03/09/2017 09:37 PM 44,386,816 lld.exe

03/09/2017 09:30 PM 14,962,688 llvm-ar.exe

03/09/2017 09:50 PM 14,962,688 llvm-lib.exe

03/09/2017 09:37 PM 15,513,600 llvm-objdump.exe

03/09/2017 09:50 PM 14,962,688 llvm-ranlib.exe

03/09/2017 09:30 PM 42,117,120 LTO.dll

03/09/2017 09:35 PM 16,766,976 modularize.exe

11/14/2015 12:34 AM 23 scan-build.bat

12/21/2015 04:19 PM 4,504 scan-view

Annoyance

same problem here, I'm using prebuilt llvm 3.8, and no llc.exe included – Acrodont

Looks like you downloaded the prebuilt "Clang for Windows" installer. The only relevant prebuilt available, LLVM is integrated into Clang. Surely you'll need to consider building from source, LLC is available in the tools/llc subdir. Building docs are here, don't skip bullet items 1, 2 and 3. – Latrice

Does some one know what stops LLVM maintainers from publishing pre-built artifact so that we don't build from sources? Any thoughts on what is behind that? – Annoyance

Just wondering: were you able to build llc (I suppose that would fix your problem, right)? – Minerva

@Minerva -- The problem with that is the time it would take. – Schilt

Answer 1

It looks like llc is now embedded into clang.exe.

To generate IR Bitcode (bc): clang -emit-llvm -c test.c

To generate IR textcode (ll): clang -emit-llvm -S -c test.c

To compile IR to object: clang test.bc or clang test.ll

Link to executable: clang test.o -o test.exe

Empress

Answer 2

A little late to the party, but I've got a good, working answer. This repo on GitHub has the built binaries for windows. It comes with:

• llc
• lli
• llvm-dis
• and so much more!

Schilt

This repo was last updated in 2014, and contains LLVM 3.4 binaries. LLVM is up to 11 today. – Isodiametric

@Isodiametric -- Yes you are right. It is better than nothing though. – Schilt

These files are somewhat useless, since llc from Clang 10 won't process files from Clang 11 (I didn't try changing the version field of my .bc). I did manage to build them myself, and I could upload (though users may run into msvcrt DLL issues). – Isodiametric

@Isodiametric Hi, would you be willing to set up similar GitHub repo with the latest LLVM build(s) for Windows? Or at least, share it anyhow, please. I would also like to have the full tools suite (including llc) but am not experienced enough to build it from source. – Career

I found much newer build 9.0.0 from 2019 here – Career

Answer 3

Ziglang provides NEW prebuilt LLVM toolchain (13.0.1) for Windows, including llc:

You can download it here or direct link here

Amorette