The following fixes the code generation difference when using
a typedef for the scalar type. The issue is using a pointer
equality test for an INTEGER_CST which fails when the types
are different variants.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
PR tree-optimization/116081
* tree-vect-loop.cc (get_initial_defs_for_reduction):
Use operand_equal_p for comparing the element with the
neutral op.
---
gcc/tree-vect-loop.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index d7d628efa60..856ce491c3e 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -5652,7 +5652,7 @@ get_initial_defs_for_reduction (loop_vec_info loop_vinfo,
init = gimple_build_vector_from_val (&ctor_seq, vector_type,
neutral_op);
int k = nunits;
- while (k > 0 && elts[k - 1] == neutral_op)
+ while (k > 0 && operand_equal_p (elts[k - 1], neutral_op))
k -= 1;
while (k > 0)
{
--
2.43.0
