From: zhongjuzhe <juzhe.zhong@rivai.ai>
Date: Tue, 23 Aug 2022 07:06:31 +0000 (+0800)
Subject: middle-end: Fix unexpected warnings for RISC-V port.
X-Git-Tag: basepoints/gcc-14~4909
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a99b53f7e1860b96b67f069eb7965fcbac6594f6;p=thirdparty%2Fgcc.git

middle-end: Fix unexpected warnings for RISC-V port.

gcc/ChangeLog:

	* tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Simply
	initialize const_vf to 0.
---

diff --git a/gcc/tree-vect-loop-manip.cc b/gcc/tree-vect-loop-manip.cc
index 86d2264054ae..48a5f391d7f2 100644
--- a/gcc/tree-vect-loop-manip.cc
+++ b/gcc/tree-vect-loop-manip.cc
@@ -1978,7 +1978,8 @@ vect_gen_vector_loop_niters (loop_vec_info loop_vinfo, tree niters,
   else
     ni_minus_gap = niters;
 
-  unsigned HOST_WIDE_INT const_vf;
+  /* To silence some unexpected warnings, simply initialize to 0. */
+  unsigned HOST_WIDE_INT const_vf = 0;
   if (vf.is_constant (&const_vf)
       && !LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo))
     {