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-rw-r--r--lib/compiler/src/sys_core_fold.erl2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index e0de50f3ae..b8065176a3 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -2949,7 +2949,9 @@ returns_integer(bit_size, [_]) -> true;
returns_integer('bsl', [_,_]) -> true;
returns_integer('bsr', [_,_]) -> true;
returns_integer(byte_size, [_]) -> true;
+returns_integer(ceil, [_]) -> true;
returns_integer('div', [_,_]) -> true;
+returns_integer(floor, [_]) -> true;
returns_integer(length, [_]) -> true;
returns_integer('rem', [_,_]) -> true;
returns_integer('round', [_]) -> true;