================
@@ -163,6 +163,38 @@ static std::string describeSanitizeArg(const
llvm::opt::Arg *A,
/// Sanitizers set.
static std::string toString(const clang::SanitizerSet &Sanitizers);
+/// Map a Hexagon callee-saved register number (16-27) to its -ffixed-rN
+/// option, used to check that the shadow call stack pointer is reserved.
+static options::ID getHexagonFixedRegOption(unsigned RegNo) {
----------------
quic-santdas wrote:
Since the registers are contiguous, we can probably have a range check like
this:
if (RegNo >= 16 && RegNo <= 27)
return options::OPT_ffixed_r16 + (RegNo - 16));
https://github.com/llvm/llvm-project/pull/213820
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