[PATCH] D88394: [Driver][M68k] (Patch 8/8) Add driver support for M68k

Min-Yih Hsu via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Dec 3 23:08:02 PST 2020


myhsu marked 2 inline comments as done.
myhsu added inline comments.


================
Comment at: clang/include/clang/Driver/Options.td:3125
+foreach i = {0-4} in
+  def m680#i#0 : Flag<["-"], "m680"#i#"0">, Group<m_m68k_Features_Group>;
 
----------------
myhsu wrote:
> bruno wrote:
> > rengolin wrote:
> > > Same question as @RKSimon had below: Shouldn't this cover all models the back-end recognises?
> > Unless you are planning to add 100 or more target variations I'd prefer to see these explicitly defined instead of a `foreach`. If I'm grepping for a specific CPU variation in the code base it's nice to get that information easily. 
> @rengolin  I think the backend currently doesn't support M68060 either
Update: I've just put the sub-target (skeleton) for M68060. So now you can specific M68060 :-)


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Comment at: clang/lib/Driver/ToolChains/Arch/M68k.cpp:44
+
+    llvm::Regex CPUPattern("m?680([01234]{1})0");
+    llvm::SmallVector<StringRef, 2> Matches;
----------------
RKSimon wrote:
> Why no 68060 ?
@RKSimon  Just added 060's support :-)
Currently I don't see any major ISA difference between 060 and 040 (correct me if I'm wrong). So I just put a sub-target skeleton and clang support for 060, and fill in the details in the future


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D88394/new/

https://reviews.llvm.org/D88394



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