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From: David Howells <dhowells@redhat.com>
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To: Mark Brown <broonie@kernel.org>
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Date: Fri, 22 Jul 2016 12:19:52 +0100
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Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [CORE TOPIC] More useful types in the linux
	kernel
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Mark Brown <broonie@kernel.org> wrote:

> There's a push from certain quarters to move away from GCC to LLVM.  Not
> that these things are unachievable in LLVM but it's a thing.

I currently maintain a set of 26 cross-compilers (ppc64 is a box of symlinks)
for building the kernel and bootloaders with gcc on Fedora:

	gcc-aarch64-linux-gnu.x86_64                 5.3.1-2.fc23   updates
	gcc-alpha-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-arm-linux-gnu.x86_64                     5.3.1-2.fc23   updates
	gcc-avr32-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-bfin-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-c6x-linux-gnu.x86_64                     5.3.1-2.fc23   updates
	gcc-cris-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-frv-linux-gnu.x86_64                     5.3.1-2.fc23   updates
	gcc-h8300-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-hppa-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-hppa64-linux-gnu.x86_64                  5.3.1-2.fc23   updates
	gcc-ia64-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-m32r-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-m68k-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-microblaze-linux-gnu.x86_64              5.3.1-2.fc23   updates
	gcc-mips64-linux-gnu.x86_64                  5.3.1-2.fc23   updates
	gcc-mn10300-linux-gnu.x86_64                 5.3.1-2.fc23   updates
	gcc-nios2-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-powerpc64-linux-gnu.x86_64               5.3.1-2.fc23   updates
	gcc-ppc64-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-s390x-linux-gnu.x86_64                   5.3.1-2.fc23   updates
	gcc-sh-linux-gnu.x86_64                      5.3.1-2.fc23   updates
	gcc-sh64-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-sparc64-linux-gnu.x86_64                 5.3.1-2.fc23   updates
	gcc-tile-linux-gnu.x86_64                    5.3.1-2.fc23   updates
	gcc-x86_64-linux-gnu.x86_64                  5.3.1-2.fc23   updates
	gcc-xtensa-linux-gnu.x86_64                  5.3.1-2.fc23   updates

These are gcc-6.1.1-based in fc24.  Can LLVM cover all of these, plus the
missing arches that gcc doesn't support yet?

David