https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121542
--- Comment #2 from chenglulu <chenglulu at loongson dot cn> ---
The parameter vectype of the function loongarch_vector_costs::add_stmt_cost may
be NULL, but there is a place in the function that does not check whether
vectype is NULL and uses it directly, resulting in ICE.
The following modification can fix this problem.
```
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 493f95e1619..80ffc206d05 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -4388,7 +4388,8 @@ loongarch_vector_costs::add_stmt_cost (int count,
vect_cost_for_stmt kind,
break;
}
else if (TARGET_RECIP_VEC_DIV
- && gimple_code (stmt_info->stmt) == GIMPLE_ASSIGN)
+ && gimple_code (stmt_info->stmt) == GIMPLE_ASSIGN
+ && vectype)
{
machine_mode mode = TYPE_MODE (vectype);
switch (gimple_assign_rhs_code (stmt_info->stmt))
```
