================
@@ -787,19 +794,20 @@ shouldReportSigningOracle(const BinaryContext &BC, const
MCInstReference &Inst,
const SrcState &S) {
static const GadgetKind SigningOracleKind("signing oracle found");
- MCPhysReg SignedReg = BC.MIB->getSignedReg(Inst);
- if (SignedReg == BC.MIB->getNoRegister())
+ std::optional<MCPhysReg> SignedReg = BC.MIB->getSignedReg(Inst);
+ if (!SignedReg)
return std::nullopt;
+ assert(*SignedReg != BC.MIB->getNoRegister());
----------------
kbeyls wrote:
This assert looks a bit strange. Since we're using `std::optional<MCPhysReg>`
everywhere now, is there any reason why `*SignedReg` could be `getNoRegister()`
here more than in any other place where we call an API returning
`std::optional<MCPhysReg>`?
If not, maybe it's better to remove this assert?
https://github.com/llvm/llvm-project/pull/136147
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