From: Richard Biener <rguenther@suse.de>
Date: Fri, 16 Jul 2021 09:17:37 +0000 (+0200)
Subject: tree-optimization/101467 - fix make_temp_ssa_name usage
X-Git-Tag: basepoints/gcc-13~5963
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df0d7486ec9bca8a77ca106d9fbb60f819dd9cec;p=thirdparty%2Fgcc.git

tree-optimization/101467 - fix make_temp_ssa_name usage

My previous change to vect_gen_while introduced paths which call
make_temp_ssa_name with a NULL name which isn't supported.  The
following fixes that.

2021-07-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101467
	* tree-vect-stmts.c (vect_gen_while): Properly guard
	make_temp_ssa_name usage.
---

diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index ec82acb8db96..0ef46962618b 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -11999,7 +11999,11 @@ vect_gen_while (gimple_seq *seq, tree mask_type, tree start_index,
   gcall *call = gimple_build_call_internal (IFN_WHILE_ULT, 3,
 					    start_index, end_index,
 					    build_zero_cst (mask_type));
-  tree tmp = make_temp_ssa_name (mask_type, NULL, name);
+  tree tmp;
+  if (name)
+    tmp = make_temp_ssa_name (mask_type, NULL, name);
+  else
+    tmp = make_ssa_name (mask_type);
   gimple_call_set_lhs (call, tmp);
   gimple_seq_add_stmt (seq, call);
   return tmp;