Rename unmodifiedImportedMemory => zeroFilledMemory (#3285)

2 files changed, 7 insertions, 7 deletions

diff --git a/src/pass.h b/src/pass.h
index 45dd549d1..3b055cee9 100644
--- a/src/pass.h
+++ b/src/pass.h
@@ -107,15 +107,15 @@ struct PassOptions {
   // forth (which IEEE floats do not, strictly speaking). This is inspired by
   // gcc/clang's -ffast-math flag.
   bool fastMath = false;
-  // Whether to assume that an imported memory has not been modified. Without
+  // Whether to assume that an imported memory is zero-initialized. Without
   // this, we can do fewer optimizations on memory segments, because if memory
   // *was* modified then the wasm's segments may trample those previous
-  // modifications. If memory was not modified, we can assume it starts as zero,
-  // which allows us to remove zeros from wasm's segments.
+  // modifications. If memory was zero-initialized then we can remove zeros from
+  // the wasm's segments.
   // (This is not a problem if the memory is *not* imported, since then wasm
   // creates it and we know it is all zeros right before the active segments are
   // applied.)
-  bool unmodifiedImportedMemory = false;
+  bool zeroFilledMemory = false;
   // Whether to try to preserve debug info through, which are special calls.
   bool debugInfo = false;
   // Arbitrary string arguments from the commandline, which we forward to
diff --git a/src/tools/optimization-options.h b/src/tools/optimization-options.h
index f89dab347..4f5c9e0d1 100644
--- a/src/tools/optimization-options.h
+++ b/src/tools/optimization-options.h
@@ -194,12 +194,12 @@ struct OptimizationOptions : public ToolOptions {
         "Optimize floats without handling corner cases of NaNs and rounding",
         Options::Arguments::Zero,
         [this](Options*, const std::string&) { passOptions.fastMath = true; })
-      .add("--unmodified-imported-mem",
+      .add("--zero-filled-memory",
            "-uim",
-           "Assume that an imported memory will not have been modified",
+           "Assume that an imported memory will be zero-initialized",
            Options::Arguments::Zero,
            [this](Options*, const std::string&) {
-             passOptions.unmodifiedImportedMemory = true;
+             passOptions.zeroFilledMemory = true;
            });
     // add passes in registry
     for (const auto& p : PassRegistry::get()->getRegisteredNames()) {