re PR tree-optimization/69820 (Test miscompiled with -O3 option)

	PR target/69820
	* config/i386/sse.md (VI_512): Only include V64QImode and V32HImode
	if TARGET_AVX512BW.

	* gcc.target/i386/pr69820.c: New test.

From-SVN: r233558

gcc/ChangeLog

+2016-02-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/69820
+	* config/i386/sse.md (VI_512): Only include V64QImode and V32HImode
+	if TARGET_AVX512BW.
+
 2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
 	* config/s390/vector.md: Add missing commutative operand markers

gcc/config/i386/sse.md

@@ -522,7 +522,10 @@
 (define_mode_iterator VI_256 [V32QI V16HI V8SI V4DI])
 
 ;; All 512bit vector integer modes
-(define_mode_iterator VI_512 [V64QI V32HI V16SI V8DI])
+(define_mode_iterator VI_512
+  [(V64QI "TARGET_AVX512BW")
+   (V32HI "TARGET_AVX512BW")
+   V16SI V8DI])
 
 ;; Various 128bit vector integer mode combinations
 (define_mode_iterator VI12_128 [V16QI V8HI])

gcc/testsuite/ChangeLog

+2016-02-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/69820
+	* gcc.target/i386/pr69820.c: New test.
+
 2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
 	* gcc.target/s390/vector/int128-1.c: New test.

gcc/testsuite/gcc.target/i386/pr69820.c

+/* PR target/69820 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -mavx512f -mno-avx512bw" } */
+
+int a[100], b[100];
+short c[100];
+
+void
+foo ()
+{
+  int i;
+  for (i = 0; i < 100; ++i)
+    b[i] = a[i] * (_Bool) c[i];
+}