From: Jeff Law <law@gcc.gnu.org>
Date: Sat, 22 Aug 1998 23:21:23 +0000 (-0600)
Subject: recog.c (validate_replace_rtx_group): New function.
X-Git-Tag: prereleases/libgcj-0.1~3481
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=edfac33e828bec837550da110999793dd436a551;p=thirdparty%2Fgcc.git

recog.c (validate_replace_rtx_group): New function.

�
        * recog.c (validate_replace_rtx_group): New function.
        * recog.h (validate_replace_rtx_group): Declare it.
        * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
        the entire group of substitutions.

From-SVN: r21909
---

diff --git a/gcc/recog.c b/gcc/recog.c
index dd73a46bdc90..d472df0d267e 100644
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -550,6 +550,16 @@ validate_replace_rtx (from, to, insn)
   return apply_change_group ();
 }
 
+/* Try replacing every occurrence of FROM in INSN with TO.  After all
+   changes have been made, validate by seeing if INSN is still valid.  */
+
+void
+validate_replace_rtx_group (from, to, insn)
+     rtx from, to, insn;
+{
+  validate_replace_rtx_1 (&PATTERN (insn), from, to, insn);
+}
+
 /* Try replacing every occurrence of FROM in INSN with TO, avoiding
    SET_DESTs.  After all changes have been made, validate by seeing if
    INSN is still valid.  */