================
@@ -2110,6 +2110,66 @@ static bool checkFPMathBuiltinElementType(Sema &S,
SourceLocation Loc,
return false;
}
+/// SemaBuiltinCpuSupports - Handle __builtin_cpu_supports(char *).
+/// This checks that the target supports __builtin_cpu_supports and
+/// that the string argument is constant and valid.
+static bool SemaBuiltinCpuSupports(Sema &S, const TargetInfo &TI,
+ const TargetInfo *AuxTI, CallExpr *TheCall)
{
+ Expr *Arg = TheCall->getArg(0);
+
+ const TargetInfo *TheTI = nullptr;
+ if (TI.supportsCpuSupports())
+ TheTI = &TI;
+ else if (AuxTI && AuxTI->supportsCpuSupports())
+ TheTI = AuxTI;
+ else
+ return S.Diag(TheCall->getBeginLoc(), diag::err_builtin_target_unsupported)
+ << SourceRange(TheCall->getBeginLoc(), TheCall->getEndLoc());
+
+ // Check if the argument is a string literal.
+ if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts()))
+ return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
+ << Arg->getSourceRange();
+
+ // Check the contents of the string.
+ StringRef Feature =
+ cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString();
+ if (!TheTI->validateCpuSupports(Feature))
+ return S.Diag(TheCall->getBeginLoc(), diag::err_invalid_cpu_supports)
+ << Arg->getSourceRange();
+ return false;
+}
+
+/// SemaBuiltinCpuIs - Handle __builtin_cpu_is(char *).
+/// This checks that the target supports __builtin_cpu_is and
+/// that the string argument is constant and valid.
+static bool SemaBuiltinCpuIs(Sema &S, const TargetInfo &TI,
+ const TargetInfo *AuxTI, CallExpr *TheCall) {
+ Expr *Arg = TheCall->getArg(0);
+
+ const TargetInfo *TheTI = nullptr;
+ if (TI.supportsCpuIs())
+ TheTI = &TI;
+ else if (AuxTI && AuxTI->supportsCpuIs())
+ TheTI = AuxTI;
+ else
+ return S.Diag(TheCall->getBeginLoc(), diag::err_builtin_target_unsupported)
+ << SourceRange(TheCall->getBeginLoc(), TheCall->getEndLoc());
+
+ // Check if the argument is a string literal.
+ if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts()))
+ return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
+ << Arg->getSourceRange();
+
+ // Check the contents of the string.
+ StringRef Feature =
----------------
amy-kwan wrote:
Is it more accurate to call this `CPU` instead of `Feature` here?
https://github.com/llvm/llvm-project/pull/68919
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