diff options
| -rw-r--r-- | clang/lib/Driver/ToolChains/WebAssembly.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/WebAssembly.cpp b/clang/lib/Driver/ToolChains/WebAssembly.cpp index 10f9a4f..eebe3be 100644 --- a/clang/lib/Driver/ToolChains/WebAssembly.cpp +++ b/clang/lib/Driver/ToolChains/WebAssembly.cpp @@ -347,6 +347,9 @@ void WebAssembly::addClangTargetOptions(const ArgList &DriverArgs, // Bans incompatible options for Wasm EH / SjLj. We don't allow using // different modes for EH and SjLj. auto BanIncompatibleOptionsForWasmEHSjLj = [&](StringRef CurOption) { + static bool HasRun = false; + if (HasRun) + return; if (DriverArgs.hasFlag(options::OPT_mno_exception_handing, options::OPT_mexception_handing, false)) getDriver().Diag(diag::err_drv_argument_not_allowed_with) @@ -370,10 +373,14 @@ void WebAssembly::addClangTargetOptions(const ArgList &DriverArgs, << CurOption << Option; } } + HasRun = true; }; // Enable necessary features for Wasm EH / SjLj in the backend. auto EnableFeaturesForWasmEHSjLj = [&]() { + static bool HasRun = false; + if (HasRun) + return; CC1Args.push_back("-target-feature"); CC1Args.push_back("+exception-handling"); // The standardized Wasm EH spec requires multivalue and reference-types. @@ -383,6 +390,7 @@ void WebAssembly::addClangTargetOptions(const ArgList &DriverArgs, CC1Args.push_back("+reference-types"); // Backend needs '-exception-model=wasm' to use Wasm EH instructions CC1Args.push_back("-exception-model=wasm"); + HasRun = true; }; if (DriverArgs.getLastArg(options::OPT_fwasm_exceptions)) { |