[ARM64/AArch64] Hook up CRC32 subtarget feature to the driver
llvm-svn: 207841
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index a39b151..bec557b 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1540,6 +1540,15 @@
Features.push_back("-crypto");
Features.push_back("-neon");
}
+
+ // En/disable crc
+ if (Arg *A = Args.getLastArg(options::OPT_mcrc,
+ options::OPT_mnocrc)) {
+ if (A->getOption().matches(options::OPT_mcrc))
+ Features.push_back("+crc");
+ else
+ Features.push_back("-crc");
+ }
}
static void getTargetFeatures(const Driver &D, const llvm::Triple &Triple,