diff options
| -rw-r--r-- | src/passes/pass.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/passes/pass.cpp b/src/passes/pass.cpp index 59155c834..8e7972c25 100644 --- a/src/passes/pass.cpp +++ b/src/passes/pass.cpp @@ -143,10 +143,13 @@ void PassRunner::run() { for (auto pass : passes) { padding = std::max(padding, pass->name.size()); } + bool passDebug = getenv("BINARYEN_PASS_DEBUG") && getenv("BINARYEN_PASS_DEBUG")[0] != '0'; for (auto* pass : passes) { // ignoring the time, save a printout of the module before, in case this pass breaks it, so we can print the before and after std::stringstream moduleBefore; - WasmPrinter::printModule(wasm, moduleBefore); + if (passDebug) { + WasmPrinter::printModule(wasm, moduleBefore); + } // prepare to run std::chrono::high_resolution_clock::time_point before; std::cerr << "[PassRunner] running pass: " << pass->name << "... "; @@ -169,7 +172,11 @@ void PassRunner::run() { // validate, ignoring the time std::cerr << "[PassRunner] (validating)\n"; if (!WasmValidator().validate(*wasm, false, validateGlobally)) { - std::cerr << "Last pass (" << pass->name << ") broke validation. Here is the module before: \n" << moduleBefore.str() << "\n"; + if (passDebug) { + std::cerr << "Last pass (" << pass->name << ") broke validation. Here is the module before: \n" << moduleBefore.str() << "\n"; + } else { + std::cerr << "Last pass (" << pass->name << ") broke validation. Run with BINARYEN_PASS_DEBUG=1 in the env to see the earlier state\n"; + } abort(); } } |