diff options
| -rw-r--r-- | clang/include/clang/Basic/DiagnosticCommonKinds.td | 2 | ||||
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/clang/include/clang/Basic/DiagnosticCommonKinds.td b/clang/include/clang/Basic/DiagnosticCommonKinds.td index f40eea625dc..0b7f9875e5b 100644 --- a/clang/include/clang/Basic/DiagnosticCommonKinds.td +++ b/clang/include/clang/Basic/DiagnosticCommonKinds.td @@ -123,6 +123,8 @@ def err_target_unknown_abi : Error<"unknown target ABI '%0'">; def err_target_unknown_fpmath : Error<"unknown FP unit '%0'">; def err_target_unsupported_fpmath : Error< "the '%0' unit is not supported with this instruction set">; +def err_target_unsupported_unaligned : Error< + "the %0 sub-architecture does not support unaligned accesses">; // Source manager def err_cannot_open_file : Error<"cannot open file '%0': %1">, DefaultFatal; diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 2a817f78638..21ffce24432 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -806,8 +806,12 @@ void Clang::AddARMTargetArgs(const ArgList &Args, CmdArgs.push_back("-backend-option"); if (A->getOption().matches(options::OPT_mno_unaligned_access)) CmdArgs.push_back("-arm-strict-align"); - else + else { + if (getToolChain().getTriple().getSubArch() == + llvm::Triple::SubArchType::ARMSubArch_v6m) + D.Diag(diag::err_target_unsupported_unaligned) << "v6m"; CmdArgs.push_back("-arm-no-strict-align"); + } } } |
