[prange] Avoid looking at type() for undefined ranges

Undefined ranges have no type.  This patch fixes the thinko.

gcc/ChangeLog:

	PR middle-end/115128
	* ipa-cp.cc (ipa_value_range_from_jfunc): Check for undefined_p
	before looking at type.
	(propagate_vr_across_jump_function): Same.

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/pr115128.c: New test.

2 files changed, 35 insertions, 0 deletions

diff --git a/gcc/ipa-cp.cc b/gcc/ipa-cp.cc
index 09cab76..408166b 100644
--- a/gcc/ipa-cp.cc
+++ b/gcc/ipa-cp.cc
@@ -1744,6 +1744,8 @@ ipa_value_range_from_jfunc (vrange &vr,
 		 pointer type to hold the result instead of a boolean
 		 type.  Avoid trapping in the sanity check in
 		 fold_range until this is fixed.  */
+	      || srcvr.undefined_p ()
+	      || op_vr.undefined_p ()
 	      || !handler.operand_check_p (vr_type, srcvr.type (), op_vr.type ())
 	      || !handler.fold_range (op_res, vr_type, srcvr, op_vr))
 	    op_res.set_varying (vr_type);
@@ -2556,6 +2558,8 @@ propagate_vr_across_jump_function (cgraph_edge *cs, ipa_jump_func *jfunc,
 		 pointer type to hold the result instead of a boolean
 		 type.  Avoid trapping in the sanity check in
 		 fold_range until this is fixed.  */
+	      || src_lats->m_value_range.m_vr.undefined_p ()
+	      || op_vr.undefined_p ()
 	      || !handler.operand_check_p (operand_type,
 					   src_lats->m_value_range.m_vr.type (),
 					   op_vr.type ())
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr115128.c b/gcc/testsuite/gcc.dg/tree-ssa/pr115128.c
new file mode 100644
index 0000000..14bd4db
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr115128.c
@@ -0,0 +1,31 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -w" } */
+
+long XXH3_len_4to8_64b_len, XXH3_len_0to16_64b___trans_tmp_3, XXH3_mix2Accs_acc,
+    XXH3_64bits_internal___trans_tmp_8;
+typedef unsigned long XXH3_hashLong64_f();
+void *XXH3_64bits_internal_input;
+int XXH3_64bits_internal___trans_tmp_1;
+void XXH3_mul128_fold64();
+static void XXH3_mergeAccs(unsigned long) {
+  for (;;)
+    XXH3_mul128_fold64(XXH3_mix2Accs_acc);
+}
+static __attribute__((noinline)) unsigned long
+XXH3_hashLong_64b_default(void *, unsigned long len) {
+  XXH3_mergeAccs(len * 7);
+}
+__attribute__((always_inline)) long
+XXH3_64bits_internal(unsigned long len, XXH3_hashLong64_f f_hashLong) {
+  if (len <= 16) {
+    long keyed =
+        XXH3_64bits_internal___trans_tmp_1 ^ XXH3_len_0to16_64b___trans_tmp_3;
+    XXH3_mul128_fold64(keyed, XXH3_len_4to8_64b_len);
+    return XXH3_64bits_internal___trans_tmp_8;
+  }
+  f_hashLong(XXH3_64bits_internal_input, len);
+}
+static void XXH_INLINE_XXH3_64bits(unsigned long len) {
+  XXH3_64bits_internal(len, XXH3_hashLong_64b_default);
+}
+void __cmplog_rtn_hook() { XXH_INLINE_XXH3_64bits(sizeof(long)); }