efriedma added inline comments.
================
Comment at: lib/Driver/ToolChains/Arch/AArch64.cpp:200
+ //
+ // TODO: implement this logic in TargetParser.
+
----------------
Yes, this logic should be in TargetParser, not here. Trying to rewrite the
target features afterwards is messy at best. (Actually, the target feature
list generated by TargetParser probably shouldn't contain the string "crypto"
at all.)
Given that this code will go away when TargetParser is fixed, why are you
proposing this patch?
================
Comment at: lib/Driver/ToolChains/Arch/AArch64.cpp:219
+
+ if (std::find(ItBegin, ItEnd, "+v8.4a") != ItEnd) {
+ if (HasCrypto && !NoCrypto) {
----------------
Does this need to check for 8.5a?
================
Comment at: lib/Driver/ToolChains/Arch/ARM.cpp:430
+ if (ArchName.find_lower("+noaes") == StringRef::npos)
+ Features.push_back("+aes");
+ } else if (ArchName.find_lower("-crypto") != StringRef::npos) {
----------------
The ARM backend doesn't support features named "sha2" and "aes" at the moment.
https://reviews.llvm.org/D50179
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