1 files changed, 9 insertions, 6 deletions
diff --git a/js/src/wasm/WasmStubs.cpp b/js/src/wasm/WasmStubs.cpp
index 83a18c9992..dfaa898744 100644
--- a/js/src/wasm/WasmStubs.cpp
+++ b/js/src/wasm/WasmStubs.cpp
@@ -1633,9 +1633,10 @@ static void FillArgumentArrayForInterpExit(MacroAssembler& masm,
                                            const FuncType& funcType,
                                            unsigned argOffset,
                                            Register scratch) {
-  // This is FrameWithInstances::sizeOf() - ShadowStackSpace because the latter
+  // This is `sizeof(FrameWithInstances) - ShadowStackSpace` because the latter
   // is accounted for by the ABIArgIter.
-  const unsigned offsetFromFPToCallerStackArgs = sizeof(FrameWithInstances);
+  const unsigned offsetFromFPToCallerStackArgs =
+      sizeof(FrameWithInstances) - jit::ShadowStackSpace;
 
   GenPrintf(DebugChannel::Import, masm, "wasm-import[%u]; arguments ",
             funcImportIndex);
@@ -1729,9 +1730,10 @@ static void FillArgumentArrayForJitExit(MacroAssembler& masm, Register instance,
                                         Register scratch2, Label* throwLabel) {
   MOZ_ASSERT(scratch != scratch2);
 
-  // This is FrameWithInstances::sizeOf() - ShadowStackSpace because the latter
+  // This is `sizeof(FrameWithInstances) - ShadowStackSpace` because the latter
   // is accounted for by the ABIArgIter.
-  const unsigned offsetFromFPToCallerStackArgs = sizeof(FrameWithInstances);
+  const unsigned offsetFromFPToCallerStackArgs =
+      sizeof(FrameWithInstances) - jit::ShadowStackSpace;
 
   // This loop does not root the values that are being constructed in
   // for the arguments. Allocations that are generated by code either
@@ -2473,9 +2475,10 @@ bool wasm::GenerateBuiltinThunk(MacroAssembler& masm, ABIFunctionType abiType,
 
   // Copy out and convert caller arguments, if needed.
 
-  // This is FrameWithInstances::sizeOf() - ShadowStackSpace because the latter
+  // This is `sizeof(FrameWithInstances) - ShadowStackSpace` because the latter
   // is accounted for by the ABIArgIter.
-  unsigned offsetFromFPToCallerStackArgs = sizeof(FrameWithInstances);
+  unsigned offsetFromFPToCallerStackArgs =
+      sizeof(FrameWithInstances) - jit::ShadowStackSpace;
   Register scratch = ABINonArgReturnReg0;
   for (ABIArgIter i(args); !i.done(); i++) {
     if (i->argInRegister()) {