[PATCH] D140695: [M68k] Define __GCC_HAVE_SYNC_COMPARE_AND_SWAP macros

[John Paul Adrian Glaubitz via Phabricator via cfe-commits]

glaubitz added a comment.

In D140695#4019189 <https://reviews.llvm.org/D140695#4019189>, @brad wrote:

> How come the Clang M68k backend defaults to 68000? GCC defaults to 68020 for all targets.

The Clang M68k is a complete rewrite from scratch, independent of GCC, so it's not surprising you may see differences between Clang and GCC.

I'm open to raising the default baseline to 68020 though once the backend has matured enough.


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