From: Mike Stump <mikestump@comcast.net>
Date: Fri, 21 Oct 2011 02:14:32 +0000 (+0000)
Subject: regcprop.c (copyprop_hardreg_forward_1): Update recog_data after validate_change... 
X-Git-Tag: releases/gcc-4.7.0~2926
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3147591f604b6ce925c1e7d39e62ec973472af58;p=thirdparty%2Fgcc.git

regcprop.c (copyprop_hardreg_forward_1): Update recog_data after validate_change wipes it out.

	* regcprop.c (copyprop_hardreg_forward_1): Update recog_data
	after validate_change wipes it out.

From-SVN: r180284
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b5fc23e9063..a76979d8f753 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-20  Mike Stump  <mikestump@comcast.net>
+
+	* regcprop.c (copyprop_hardreg_forward_1): Update recog_data
+	after validate_change wipes it out.
+
 2011-10-20  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
 	* config/spu/spu.md ("vec_permv16qi"): Reduce selector modulo 32
diff --git a/gcc/regcprop.c b/gcc/regcprop.c
index aca005d7afd9..ad92a64cc298 100644
--- a/gcc/regcprop.c
+++ b/gcc/regcprop.c
@@ -840,6 +840,12 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd)
 		  changed = true;
 		  goto did_replacement;
 		}
+	      /* We need to re-extract as validate_change clobbers
+		 recog_data.  */
+	      extract_insn (insn);
+	      if (! constrain_operands (1))
+		fatal_insn_not_found (insn);
+	      preprocess_constraints ();
 	    }
 
 	  /* Otherwise, try all valid registers and see if its valid.  */
@@ -862,6 +868,12 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd)
 		      changed = true;
 		      goto did_replacement;
 		    }
+		  /* We need to re-extract as validate_change clobbers
+		     recog_data.  */
+		  extract_insn (insn);
+		  if (! constrain_operands (1))
+		    fatal_insn_not_found (insn);
+		  preprocess_constraints ();
 		}
 	    }
 	}