[PATCH] RISC-V: Refine codes in backward fusion

[juzhe . zhong]

From: Ju-Zhe Zhong <juzhe.zh...@rivai.ai>

This NFC patch is preparing for the following patches.
gcc/ChangeLog:

        * config/riscv/riscv-vsetvl.cc (pass_vsetvl::backward_demand_fusion): 
Refine codes.

---
 gcc/config/riscv/riscv-vsetvl.cc | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc
index 18c6f437db6..0ca1c51d121 100644
--- a/gcc/config/riscv/riscv-vsetvl.cc
+++ b/gcc/config/riscv/riscv-vsetvl.cc
@@ -2010,15 +2010,16 @@ pass_vsetvl::backward_demand_fusion (void)
   for (const bb_info *bb : crtl->ssa->reverse_bbs ())
     {
       basic_block cfg_bb = bb->cfg_bb ();
-      const auto &prop
-       = m_vector_manager->vector_block_infos[cfg_bb->index].local_dem;
+      const auto &curr_block_info
+       = m_vector_manager->vector_block_infos[cfg_bb->index];
+      const auto &prop = curr_block_info.local_dem;
 
       /* If there is nothing to propagate, just skip it.  */
       if (!prop.valid_or_dirty_p ())
        continue;
 
-      if (!backward_propagate_worthwhile_p (
-           cfg_bb, m_vector_manager->vector_block_infos[cfg_bb->index]))
+      if (!backward_propagate_worthwhile_p (cfg_bb, curr_block_info))
+       continue;
        continue;
 
       edge e;
-- 
2.36.1