From: Jin Ma <jinma@linux.alibaba.com>
Date: Fri, 16 May 2025 07:27:13 +0000 (+0800)
Subject: RISC-V: Since the loop increment i++ is unreachable, the loop body will never execute... 
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55cfd1c8fa2ad2c5d91eadd14daa35f695779a2b;p=thirdparty%2Fgcc.git

RISC-V: Since the loop increment i++ is unreachable, the loop body will never execute more than once

Reported-by: huangcunjian <huangcunjian.huang@alibaba-inc.com>

gcc/ChangeLog:

	* config/riscv/riscv.cc (riscv_gpr_save_operation_p): Remove
	break and fixbug for elt index.
---

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index fd51472dbea..b2794252291 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -11580,11 +11580,10 @@ riscv_gpr_save_operation_p (rtx op)
 	  /* Two CLOBBER and USEs, must check the order.  */
 	  unsigned expect_code = i < 3 ? CLOBBER : USE;
 	  if (GET_CODE (elt) != expect_code
-	      || !REG_P (XEXP (elt, 1))
-	      || (REGNO (XEXP (elt, 1)) != gpr_save_reg_order[i]))
+	      || !REG_P (XEXP (elt, 0))
+	      || (REGNO (XEXP (elt, 0)) != gpr_save_reg_order[i]))
 	    return false;
 	}
-	break;
     }
   return true;
 }