re PR target/78227 (ICE: unrecognizable insn: in extract_insn, at recog.c:2311…

re PR target/78227 (ICE: unrecognizable insn: in extract_insn, at recog.c:2311 with -mavx512bw and vector comare)

	PR target/78227
	* config/i386/i386.c (ix86_expand_sse_cmp): Force dest into
	cmp_mode argument even for -O0 if cmp_mode != mode and maskcmp.

	* gcc.target/i386/pr78227-1.c: New test.
	* gcc.target/i386/pr78227-2.c: New test.

From-SVN: r241916

gcc/ChangeLog

+2016-11-07  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/78227
+	* config/i386/i386.c (ix86_expand_sse_cmp): Force dest into
+	cmp_mode argument even for -O0 if cmp_mode != mode and maskcmp.
+
 2016-11-07  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR middle-end/35691

gcc/config/i386/i386.c

@@ -23561,6 +23561,7 @@ ix86_expand_sse_cmp (rtx dest, enum rtx_code code, rtx cmp_op0, rtx cmp_op1,
     cmp_op1 = force_reg (cmp_ops_mode, cmp_op1);
 
   if (optimize
+      || (maskcmp && cmp_mode != mode)
       || (op_true && reg_overlap_mentioned_p (dest, op_true))
       || (op_false && reg_overlap_mentioned_p (dest, op_false)))
     dest = gen_reg_rtx (maskcmp ? cmp_mode : mode);

gcc/testsuite/ChangeLog

+2016-11-07  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/78227
+	* gcc.target/i386/pr78227-1.c: New test.
+	* gcc.target/i386/pr78227-2.c: New test.
+
 2016-11-07  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR middle-end/35691

gcc/testsuite/gcc.target/i386/pr78227-1.c

+/* PR target/78227 */
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -O0 -Wno-psabi" } */
+
+typedef int V __attribute__((vector_size (64)));
+typedef long long int W __attribute__((vector_size (64)));
+
+V
+foo1 (V v)
+{
+  return v > 0;
+}
+
+V
+bar1 (V v)
+{
+  return v != 0;
+}
+
+W
+foo2 (W w)
+{
+  return w > 0;
+}
+
+W
+bar2 (W w)
+{
+  return w != 0;
+}

gcc/testsuite/gcc.target/i386/pr78227-2.c

+/* PR target/78227 */
+/* { dg-do compile } */
+/* { dg-options "-mavx512bw -O0 -Wno-psabi" } */
+
+typedef signed char V __attribute__((vector_size (64)));
+typedef short int W __attribute__((vector_size (64)));
+
+V
+foo1 (V v)
+{
+  return v > 0;
+}
+
+V
+bar1 (V v)
+{
+  return v != 0;
+}
+
+W
+foo2 (W w)
+{
+  return w > 0;
+}
+
+W
+bar2 (W w)
+{
+  return w != 0;
+}