================
Comment at: lib/Basic/Targets.cpp:4160
@@ +4159,3 @@
+ if (Triple.getSubArch() == llvm::Triple::SubArchType::NoSubArch)
+ setArchInfo("armv6j");
+ else
----------------
labrinea wrote:
> rengolin wrote:
> > labrinea wrote:
> > > rengolin wrote:
> > > > This seems quite arbitrary... Couldn't you return an empty string?
> > > If no subArch is specified then setArchInfo() cannot do much with an
> > > empty string. ArcKind will be set to invalid and getCPUAttr() will return
> > > an empty string. A regression will appear since __ARM_ARCH_6J__ won't be
> > > defined as expected. That ("armv6j") should be the corresponding subArch
> > > for the default CPU ("arm1136j-s") specified in the constructor.
> > Then, use the default value in the constructor (CPU) instead, to figure out
> > the arch.
> >
> > Don't just hard-code yet another temporarily matching value.
> If it is more maintainable instead of setArchInfo("armv6j") we could call
> setCPU(CPU) (where cpu is "arm1136j-s" by default) in case subArch is not
> defined.
or you could use TargetParser::parseCPUArch(CPU);
Anything bur more hardcoded values.
http://reviews.llvm.org/D10839
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