Merge pull request #248 from dorafmon/master

Trying to fix Issue #171

Makefile.llvmconfig

 # included by Makefile
 
-LLVM_CONFIGURE_LINE := CXX=$(GPP) LDFLAGS="-Wl,-rpath,$(GCC_DIR)/lib64" $(LLVM_SRC)/configure --enable-targets=host --with-gcc-toolchain=$(GCC_DIR)
+LLVM_CONFIGURE_LINE := CXX=$(GPP) LDFLAGS="-Wl,-rpath,$(GCC_DIR)/lib64" $(LLVM_SRC)/configure --enable-targets=host --with-gcc-toolchain=$(GCC_DIR) --disable-bindings

src/runtime/list.cpp

@@ -395,6 +395,11 @@ Box* listContains(BoxedList* self, Box* elt) {
     int size = self->size;
     for (int i = 0; i < size; i++) {
         Box* e = self->elts->elts[i];
+
+        bool identity_eq = e == elt;
+        if (identity_eq)
+            return True;
+
         Box* cmp = compareInternal(e, elt, AST_TYPE::Eq, NULL);
         bool b = nonzero(cmp);
         if (b)
@@ -517,6 +522,10 @@ Box* _listCmp(BoxedList* lhs, BoxedList* rhs, AST_TYPE::AST_TYPE op_type) {
 
     int n = std::min(lsz, rsz);
     for (int i = 0; i < n; i++) {
+        bool identity_eq = lhs->elts->elts[i] == rhs->elts->elts[i];
+        if (identity_eq)
+            continue;
+
         Box* is_eq = compareInternal(lhs->elts->elts[i], rhs->elts->elts[i], AST_TYPE::Eq, NULL);
         bool bis_eq = nonzero(is_eq);
 

test/tests/list_eq_contains.py

+nan = float('nan')
+print nan == nan
+print nan in [nan]
+print [nan] == [nan]
+print [nan] in [nan]