check all i64 functions for whether we need to include precise i64 code

1 files changed, 7 insertions, 3 deletions

diff --git a/emscripten.py b/emscripten.py
index c96c56a0..a1b6a606 100755
--- a/emscripten.py
+++ b/emscripten.py
@@ -801,9 +801,13 @@ def emscript_fast(infile, settings, outfile, libraries=[], compiler_engine=None,
   # Settings changes
   assert settings['TARGET_LE32'] == 1
   settings['TARGET_LE32'] = 2
-  if 'i64Add' in metadata['declares']: # TODO: others, once we split them up
-    settings['PRECISE_I64_MATH'] = 2
-    metadata['declares'] = filter(lambda i64_func: i64_func not in ['getHigh32', 'setHigh32', '__muldi3', '__divdi3', '__remdi3', '__udivdi3', '__uremdi3'], metadata['declares']) # FIXME: do these one by one as normal js lib funcs
+  i64_funcs = ['i64Add', 'i64Subtract', '__muldi3', '__divdi3', '__udivdi3', '__remdi3', '__uremdi3']
+  for i64_func in i64_funcs:
+    if i64_func in metadata['declares']:
+      settings['PRECISE_I64_MATH'] = 2
+      break
+
+  metadata['declares'] = filter(lambda i64_func: i64_func not in ['getHigh32', 'setHigh32', '__muldi3', '__divdi3', '__remdi3', '__udivdi3', '__uremdi3'], metadata['declares']) # FIXME: do these one by one as normal js lib funcs
 
   # Integrate info from backend
   settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] = list(