olista01 added inline comments.
================
Comment at: test/Driver/aarch64-cpus.c:10
+// GENERIC: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// GENERIC-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
----------------
SjoerdMeijer wrote:
> olista01 wrote:
> > Why do these need new check prefixes? All of the RUN lines above are
> > selecting little-endian, so I'd expect GENERIC and GENERIC-LE to be the
> > same.
> Ok, good point. The output is slightly different. For the little-endian runs
> above the output is:
>
> "-triple" "aarch64"
>
> and with "-target aarch64_be -mlittle-endian" the output is:
>
> "-triple" "aarch64--"
>
> As we don't want to be too generic and match "aarch64{{.*}}", I will
> therefore change the GENERIC checks to match "aarch64{{[--]*}}", and indeed
> remove GENERIC-LE.
I think that works, but it's a strange way to write the regex. You have "-"
twice inside a character set, which is the same as only having it once, so
"[--]*" matches zero or more occurrences of "-". I'd suggest using something
like "(--)?" which matches either "--" or nothing.
https://reviews.llvm.org/D50175
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