From 9b9a1ac14cdca6eef8dbcab0d33f3c03774a6c77 Mon Sep 17 00:00:00 2001
From: Ju-Zhe Zhong <juzhe.zhong@rivai.ai>
Date: Wed, 18 Jan 2023 11:09:21 +0800
Subject: [PATCH] RISC-V: Fix bug of before_p function

compare_with will return other than -1, so it should check less than 0
rather than check exactly with -1.

gcc/ChangeLog:

	* config/riscv/riscv-vsetvl.cc (before_p): Fix bug.
---
 gcc/config/riscv/riscv-vsetvl.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc
index 45e14d0ff03..a18ccd72ab6 100644
--- a/gcc/config/riscv/riscv-vsetvl.cc
+++ b/gcc/config/riscv/riscv-vsetvl.cc
@@ -187,7 +187,7 @@ real_insn_and_same_bb_p (const insn_info *insn, const bb_info *bb)
 static bool
 before_p (const insn_info *insn1, const insn_info *insn2)
 {
-  return insn1->compare_with (insn2) == -1;
+  return insn1->compare_with (insn2) < 0;
 }
 
 static bool