From: Richard Kenner <kenner@gcc.gnu.org>
Date: Tue, 6 Jun 1995 02:43:28 +0000 (-0400)
Subject: (reg_dead_at_p): When scanning backwards, stop at BARRIER.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=60715d0bef40ecaebd6753e865173648a20a1306;p=gcc.git

(reg_dead_at_p): When scanning backwards, stop at BARRIER.

From-SVN: r9885
---

diff --git a/gcc/combine.c b/gcc/combine.c
index 11c941ab70b..81c62e65dfe 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -10185,7 +10185,7 @@ reg_dead_at_p (reg, insn)
 
   /* Scan backwards until we find a REG_DEAD note, SET, CLOBBER, label, or
      beginning of function.  */
-  for (; insn && GET_CODE (insn) != CODE_LABEL;
+  for (; insn && GET_CODE (insn) != CODE_LABEL && GET_CODE (insn) != BARRIER;
        insn = prev_nonnote_insn (insn))
     {
       note_stores (PATTERN (insn), reg_dead_at_p_1);