Fix alignment in MixedAllocator (#1740)

Necessary for simd, as we add a type with alignment >8. We were just broken on that before this PR.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/wasm/wasm-s-parser.cpp b/src/wasm/wasm-s-parser.cpp
index b81b32ad6..79407a3f8 100644
--- a/src/wasm/wasm-s-parser.cpp
+++ b/src/wasm/wasm-s-parser.cpp
@@ -166,7 +166,7 @@ void SExpressionParser::parseDebugLocation() {
     return; // no column number
   }
   std::string colStr(++pos, debugLocEnd);
-  void* buf = allocator.allocSpace(sizeof(SourceLocation));
+  void* buf = allocator.allocSpace(sizeof(SourceLocation), alignof(SourceLocation));
   loc = new (buf) SourceLocation(IString(name.c_str(), false), atoi(lineStr.c_str()), atoi(colStr.c_str()));
 }