diff options
Diffstat (limited to 'clang/lib/Sema/SemaChecking.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaChecking.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp index b7effea..9e7f5ca 100644 --- a/clang/lib/Sema/SemaChecking.cpp +++ b/clang/lib/Sema/SemaChecking.cpp @@ -2309,6 +2309,17 @@ bool Sema::CheckX86BuiltinGatherScatterScale(unsigned BuiltinID, << Arg->getSourceRange(); } +static bool isX86_32Builtin(unsigned BuiltinID) { + // These builtins only work on x86-32 targets. + switch (BuiltinID) { + case X86::BI__builtin_ia32_readeflags_u32: + case X86::BI__builtin_ia32_writeeflags_u32: + return true; + } + + return false; +} + bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { if (BuiltinID == X86::BI__builtin_cpu_supports) return SemaBuiltinCpuSupports(*this, TheCall); @@ -2316,6 +2327,12 @@ bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { if (BuiltinID == X86::BI__builtin_cpu_is) return SemaBuiltinCpuIs(*this, TheCall); + // Check for 32-bit only builtins on a 64-bit target. + const llvm::Triple &TT = Context.getTargetInfo().getTriple(); + if (TT.getArch() != llvm::Triple::x86 && isX86_32Builtin(BuiltinID)) + return Diag(TheCall->getCallee()->getLocStart(), + diag::err_32_bit_builtin_64_bit_tgt); + // If the intrinsic has rounding or SAE make sure its valid. if (CheckX86BuiltinRoundingOrSAE(BuiltinID, TheCall)) return true; |