From 2947d3b29ca4008d6ed4bf53851c04972c56ede1 Mon Sep 17 00:00:00 2001
From: Ilya Enkovich <enkovich.gnu@gmail.com>
Date: Mon, 25 Jan 2016 12:48:54 +0000
Subject: [PATCH] re PR target/69421 (ICE in maybe_legitimize_operand, at
 optabs.c:6888 with -O3)

gcc/

	PR target/69421
	* tree-vect-stmts.c (vectorizable_condition): Check vectype
	of operands is compatible with a statement vectype.

gcc/testsuite/

	PR target/69421
	* gcc.dg/pr69421.c: New test.

From-SVN: r232792
---
 gcc/ChangeLog                  |  6 ++++++
 gcc/testsuite/ChangeLog        |  5 +++++
 gcc/testsuite/gcc.dg/pr69421.c | 16 ++++++++++++++++
 gcc/tree-vect-stmts.c          | 13 +++++++++++--
 4 files changed, 38 insertions(+), 2 deletions(-)
 create mode 100644 gcc/testsuite/gcc.dg/pr69421.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index abf3f2f71fd..bd851ed77f8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-01-25  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	PR target/69421
+	* tree-vect-stmts.c (vectorizable_condition): Check vectype
+	of operands is compatible with a statement vectype.
+
 2016-01-25  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* doc/extend.texi (scalar_storage_order type attribute): Fix typo and
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e91ae134af3..bd3f89229ca 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-01-25  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	PR target/69421
+	* gcc.dg/pr69421.c: New test.
+
 2016-01-25  Bilyan Borisov  <bilyan.borisov@arm.com>
 
 	* gcc.target/aarch64/simd/vcvt_s64_f64_1.c: New.
diff --git a/gcc/testsuite/gcc.dg/pr69421.c b/gcc/testsuite/gcc.dg/pr69421.c
new file mode 100644
index 00000000000..252e22c1852
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr69421.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-O3" } */
+
+struct A { double a; };
+double a;
+
+void
+foo (_Bool *x)
+{
+  long i;
+  for (i = 0; i < 64; i++)
+    {
+      struct A c;
+      x[i] = c.a || a;
+    }
+}
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index c986a002078..1dcd1295930 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -7528,6 +7528,7 @@ vectorizable_condition (gimple *stmt, gimple_stmt_iterator *gsi,
 
   tree vectype = STMT_VINFO_VECTYPE (stmt_info);
   int nunits = TYPE_VECTOR_SUBPARTS (vectype);
+  tree vectype1 = NULL_TREE, vectype2 = NULL_TREE;
 
   if (slp_node || PURE_SLP_STMT (stmt_info))
     ncopies = 1;
@@ -7547,9 +7548,17 @@ vectorizable_condition (gimple *stmt, gimple_stmt_iterator *gsi,
     return false;
 
   gimple *def_stmt;
-  if (!vect_is_simple_use (then_clause, stmt_info->vinfo, &def_stmt, &dt))
+  if (!vect_is_simple_use (then_clause, stmt_info->vinfo, &def_stmt, &dt,
+			   &vectype1))
     return false;
-  if (!vect_is_simple_use (else_clause, stmt_info->vinfo, &def_stmt, &dt))
+  if (!vect_is_simple_use (else_clause, stmt_info->vinfo, &def_stmt, &dt,
+			   &vectype2))
+    return false;
+
+  if (vectype1 && !useless_type_conversion_p (vectype, vectype1))
+    return false;
+
+  if (vectype2 && !useless_type_conversion_p (vectype, vectype2))
     return false;
 
   masked = !COMPARISON_CLASS_P (cond_expr);