From: Sebastian Pop <sebastian.pop@amd.com>
Date: Wed, 11 Aug 2010 20:29:35 +0000 (+0000)
Subject: Use SSA_NAME_DEF_STMT only on SSA_NAMEs.
X-Git-Tag: releases/gcc-4.6.0~5054
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=320532a81769a0dca7e2514aaedf977291a8054d;p=thirdparty%2Fgcc.git

Use SSA_NAME_DEF_STMT only on SSA_NAMEs.

2010-07-22  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Use
	SSA_NAME_DEF_STMT only on SSA_NAMEs.

	* gcc.dg/graphite/id-24.c: New.

From-SVN: r163156
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4b46d2631fbc..15b5acf22b5b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Use
+	SSA_NAME_DEF_STMT only on SSA_NAMEs.
+
 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* tree-scalar-evolution.c (instantiate_scev_name): Do not
diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite
index 155e39616568..1ae2bf2163b2 100644
--- a/gcc/ChangeLog.graphite
+++ b/gcc/ChangeLog.graphite
@@ -1,3 +1,10 @@
+2010-07-22  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Use
+	SSA_NAME_DEF_STMT only on SSA_NAMEs.
+
+	* gcc.dg/graphite/id-24.c: New.
+
 2010-07-22  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* tree-scalar-evolution.c (instantiate_scev_name): Do not
diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c
index 81b2dc250aa2..084dd31cf52c 100644
--- a/gcc/graphite-sese-to-poly.c
+++ b/gcc/graphite-sese-to-poly.c
@@ -2256,7 +2256,8 @@ rewrite_phi_out_of_ssa (gimple_stmt_iterator *psi)
 
       /* Avoid the insertion of code in the loop latch to please the
 	 pattern matching of the vectorizer.  */
-      if (e->src == bb->loop_father->latch)
+      if (TREE_CODE (arg) == SSA_NAME
+	  && e->src == bb->loop_father->latch)
 	insert_out_of_ssa_copy (zero_dim_array, arg, SSA_NAME_DEF_STMT (arg));
       else
 	insert_out_of_ssa_copy_on_edge (e, zero_dim_array, arg);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 553e567ae89c..fe463045de79 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* gcc.dg/graphite/id-24.c: New.
+
 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* gcc.dg/tree-ssa/pr20742.c: New.
diff --git a/gcc/testsuite/gcc.dg/graphite/id-24.c b/gcc/testsuite/gcc.dg/graphite/id-24.c
new file mode 100644
index 000000000000..d4660694ca30
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/id-24.c
@@ -0,0 +1,22 @@
+/* gcc.dg/tree-ssa/loadpre23.c used to ICE with Graphite.  */
+
+struct {
+  int a;
+  int large[100];
+} x;
+
+int foo(int argc)
+{
+  int b;
+  int c;
+  int i;
+  int d, e;
+
+  for (i = 0; i < argc; i++)
+    {
+      e = x.a;
+      x.a = 9;
+    }
+  return d + e;
+}
+