From: Pan Li <pan2.li@intel.com>
Date: Fri, 16 Jun 2023 11:31:15 +0000 (+0800)
Subject: RISC-V: Fix one warning of maybe-uninitialized in riscv-vsetvl.cc
X-Git-Tag: basepoints/gcc-15~8255
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=27612ce352921d74086102d9ad4d3e011923f837;p=thirdparty%2Fgcc.git

RISC-V: Fix one warning of maybe-uninitialized in riscv-vsetvl.cc

This patch would like to fix one maybe-uninitialized warning. Aka:

riscv-vsetvl.cc:4354:3: error: 'vsetvl_rinsn' may be used uninitialized [-Werror=maybe-uninitialized]

Signed-off-by: Pan Li <pan2.li@intel.com>

gcc/ChangeLog:

	* config/riscv/riscv-vsetvl.cc
	(pass_vsetvl::global_eliminate_vsetvl_insn): Initialize var by NULL.
---

diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc
index cae9be0d928e..7066dea3d144 100644
--- a/gcc/config/riscv/riscv-vsetvl.cc
+++ b/gcc/config/riscv/riscv-vsetvl.cc
@@ -4340,7 +4340,7 @@ get_first_vsetvl_before_rvv_insns (basic_block cfg_bb)
 bool
 pass_vsetvl::global_eliminate_vsetvl_insn (const bb_info *bb) const
 {
-  rtx_insn *vsetvl_rinsn;
+  rtx_insn *vsetvl_rinsn = NULL;
   vector_insn_info dem = vector_insn_info ();
   const auto &block_info = get_block_info (bb);
   basic_block cfg_bb = bb->cfg_bb ();