diff options
Diffstat (limited to 'src/tools/optimization-options.h')
| -rw-r--r-- | src/tools/optimization-options.h | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/src/tools/optimization-options.h b/src/tools/optimization-options.h index ca555d5e9..8bca7639f 100644 --- a/src/tools/optimization-options.h +++ b/src/tools/optimization-options.h @@ -27,6 +27,8 @@ namespace wasm { struct OptimizationOptions : public ToolOptions { static constexpr const char* DEFAULT_OPT_PASSES = "O"; + static constexpr const int OS_OPTIMIZE_LEVEL = 2; + static constexpr const int OS_SHRINK_LEVEL = 1; std::vector<std::string> passes; @@ -37,15 +39,20 @@ struct OptimizationOptions : public ToolOptions { const std::string& description) : ToolOptions(command, description) { (*this) - .add("", - "-O", - "execute default optimization passes", - OptimizationOptionsCategory, - Options::Arguments::Zero, - [this](Options*, const std::string&) { - passOptions.setDefaultOptimizationOptions(); - passes.push_back(DEFAULT_OPT_PASSES); - }) + .add( + "", + "-O", + "execute default optimization passes (equivalent to -Os)", + OptimizationOptionsCategory, + Options::Arguments::Zero, + [this](Options*, const std::string&) { + passOptions.setDefaultOptimizationOptions(); + static_assert( + PassOptions::DEFAULT_OPTIMIZE_LEVEL == OS_OPTIMIZE_LEVEL && + PassOptions::DEFAULT_SHRINK_LEVEL == OS_SHRINK_LEVEL, + "Help text states that -O is equivalent to -Os but now it isn't."); + passes.push_back(DEFAULT_OPT_PASSES); + }) .add("", "-O0", "execute no optimization passes", @@ -106,8 +113,8 @@ struct OptimizationOptions : public ToolOptions { OptimizationOptionsCategory, Options::Arguments::Zero, [this](Options*, const std::string&) { - passOptions.optimizeLevel = 2; - passOptions.shrinkLevel = 1; + passOptions.optimizeLevel = OS_OPTIMIZE_LEVEL; + passOptions.shrinkLevel = OS_SHRINK_LEVEL; passes.push_back(DEFAULT_OPT_PASSES); }) .add("", |