When generalising vector_cst_all_same, I'd forgotten to update
VECTOR_CST_ENCODED_ELT to VECTOR_CST_ELT. The check deliberately
looks at implicitly encoded elements in some cases.
gcc/
PR target/113572
* config/aarch64/aarch64-sve-builtins.cc (vector_cst_all_same):
Check VECTOR_CST_ELT instead of VECTOR_CST_ENCODED_ELT
gcc/testsuite/
PR target/113572
* gcc.target/aarch64/sve/pr113572.c: New test.
unsigned int nelts = lcm * VECTOR_CST_NELTS_PER_PATTERN (v);
tree first_el = VECTOR_CST_ENCODED_ELT (v, 0);
for (unsigned int i = 0; i < nelts; i += step)
- if (!operand_equal_p (VECTOR_CST_ENCODED_ELT (v, i), first_el, 0))
+ if (!operand_equal_p (VECTOR_CST_ELT (v, i), first_el, 0))
return false;
return true;
--- /dev/null
+#include <arm_sve.h>
+
+uint64_t u;
+struct S { int i; } he;
+
+void
+foo ()
+{
+ svuint64_t vld_clz = svld1_u64 (svwhilelt_b64 (0, 4), (uint64_t *) &he);
+ vld_clz = svclz_u64_z (svwhilelt_b64 (0, 1), vld_clz);
+ svst1_u64 (svwhilelt_b64 (0, 1), &u, vld_clz);
+}