re PR rtl-optimization/52113 ([lower-subreg.c] ICE: in extract_insn, at recog.c:2123)

	PR rtl-optimization/52113
	* lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
	even for decomposable shift/zext insns.

	* gcc.target/avr/pr52113.c: New test.

From-SVN: r183894

gcc/ChangeLog

+2012-02-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/52113
+	* lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
+	even for decomposable shift/zext insns.
+
 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
 	    Zdenek Dvorak  <ook@ucw.cz>
 

gcc/lower-subreg.c

 /* Decompose multiword subregs.
-   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+   Free Software Foundation, Inc.
    Contributed by Richard Henderson <rth@redhat.com>
 		  Ian Lance Taylor <iant@google.com>
 
@@ -1135,10 +1136,11 @@ decompose_multiword_subregs (void)
 	      || GET_CODE (PATTERN (insn)) == USE)
 	    continue;
 
+	  recog_memoized (insn);
+
 	  if (find_decomposable_shift_zext (insn))
 	    continue;
 
-	  recog_memoized (insn);
 	  extract_insn (insn);
 
 	  set = simple_move (insn);

gcc/testsuite/ChangeLog

+2012-02-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/52113
+	* gcc.target/avr/pr52113.c: New test.
+
 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/52092

gcc/testsuite/gcc.c-torture/compile/pr52113.c

+/* PR rtl-optimization/52113 */
+
+unsigned long v1;
+unsigned char v2;
+
+void
+foo (void)
+{
+  if (v1 > (v2 * 1000L))
+    v1 = 0;
+}