tree_simple_nonnegative_warnv_p ends up being called on VECTOR_TYPEs
which I think even gets the wrong answer here for tcc_comparison
since vector bools are signed. The following properly guards
that with !VECTOR_TYPE_P.
Bootstrap and regtest ongoing on x86_64-unknown-linux-gnu, will
push after that finished.
* fold-const.cc (tree_simple_nonnegative_warnv_p): Guard
the truth_value_p case with !VECTOR_TYPE_P.
---
gcc/fold-const.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/fold-const.cc b/gcc/fold-const.cc
index 3aa6851acd5..7e35eda7140 100644
--- a/gcc/fold-const.cc
+++ b/gcc/fold-const.cc
@@ -14530,7 +14530,8 @@ tree_expr_maybe_real_minus_zero_p (const_tree x)
static bool
tree_simple_nonnegative_warnv_p (enum tree_code code, tree type)
{
- if ((TYPE_PRECISION (type) != 1 || TYPE_UNSIGNED (type))
+ if (!VECTOR_TYPE_P (type)
+ && (TYPE_PRECISION (type) != 1 || TYPE_UNSIGNED (type))
&& truth_value_p (code))
/* Truth values evaluate to 0 or 1, which is nonnegative unless we
have a signed:1 type (where the value is -1 and 0). */
--
2.35.3
