https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114872
--- Comment #19 from Dmitrii Pasechnik <dima.pasechnik at cs dot ox.ac.uk> ---
Declaring the last argument in the call to GAP_CallFunc3Args() volatile appears
to fix the issue. Namely, apply
diff --git a/src/sage/libs/gap/element.pyx b/src/sage/libs/gap/element.pyx
index f1482997b8..7ca4a666ab 100644
--- a/src/sage/libs/gap/element.pyx
+++ b/src/sage/libs/gap/element.pyx
@@ -2504,6 +2504,7 @@ cdef class GapElement_Function(GapElement):
cdef Obj result = NULL
cdef Obj arg_list
cdef int n = len(args)
+ cdef volatile Obj v2
if n > 0 and n <= 3:
libgap = self.parent()
@@ -2522,10 +2523,11 @@ cdef class GapElement_Function(GapElement):
(<GapElement>a[0]).value,
(<GapElement>a[1]).value)
elif n == 3:
+ v2 = (<GapElement>a[2]).value
result = GAP_CallFunc3Args(self.value,
(<GapElement>a[0]).value,
(<GapElement>a[1]).value,
- (<GapElement>a[2]).value)
+ v2)
else:
arg_list = make_gap_list(args)
result = GAP_CallFuncList(self.value, arg_list)
