diff mbox

Fix PR52329

Message ID alpine.LNX.2.00.1202221217460.4999@zhemvz.fhfr.qr
State New
Headers show

Commit Message

Richard Biener Feb. 22, 2012, 11:18 a.m. UTC 
This fixes PR52329 and avoids invalid MEM_REFs to be passed to
RTL expansion.

Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.

Richard.

2012-02-22  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52329
	* gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
	for GIMPLE_DEBUG stmts.
diff mbox

Patch

Index: gcc/gimple-fold.c
===================================================================
--- gcc/gimple-fold.c	(revision 184460)
+++ gcc/gimple-fold.c	(working copy)
@@ -1250,6 +1250,18 @@  fold_stmt_1 (gimple_stmt_iterator *gsi,
 		  changed = true;
 		}
 	    }
+	  else if (val
+		   && TREE_CODE (val) == ADDR_EXPR)
+	    {
+	      tree ref = TREE_OPERAND (val, 0);
+	      tree tem = maybe_fold_reference (ref, false);
+	      if (tem)
+		{
+		  tem = build_fold_addr_expr_with_type (tem, TREE_TYPE (val));
+		  gimple_debug_bind_set_value (stmt, tem);
+		  changed = true;
+		}
+	    }
 	}
       break;