backport: re PR target/79807 (ICE in extract_insn, at recog.c:2311 (error: unrecogniz...

	Backported from mainline
	2017-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR target/79807
	* config/i386/i386.c (ix86_expand_multi_arg_builtin): If target
	is a memory operand, increase num_memory.
	(ix86_expand_args_builtin): Likewise.

	* gcc.target/i386/pr79807.c: New test.

From-SVN: r248653

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ad692eb55f35b41f8d1dc0557a6f132ce6933f29..67739ea67bad3e2dab6fe834b3412d510bfeb856 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,13 @@
 2017-05-30  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2017-03-03  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/79807
+       * config/i386/i386.c (ix86_expand_multi_arg_builtin): If target
+       is a memory operand, increase num_memory.
+       (ix86_expand_args_builtin): Likewise.
+
        2017-02-28  Jakub Jelinek  <jakub@redhat.com>
 
        PR target/79729

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 0fd46a7f21756f7b35f3ded2266b3fdefd5a4d54..8d91946a157b47db41c623c1660750b72436dfd9 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -36236,6 +36236,8 @@ ix86_expand_multi_arg_builtin (enum insn_code icode, tree exp, rtx target,
       || GET_MODE (target) != tmode
       || !insn_data[icode].operand[0].predicate (target, tmode))
     target = gen_reg_rtx (tmode);
+  else if (memory_operand (target, tmode))
+    num_memory++;
 
   gcc_assert (nargs <= 4);
 
@@ -37561,6 +37563,8 @@ ix86_expand_args_builtin (const struct builtin_description *d,
          || GET_MODE (target) != tmode
          || !insn_p->operand[0].predicate (target, tmode))
        target = gen_reg_rtx (tmode);
+      else if (memory_operand (target, tmode))
+       num_memory++;
       real_target = target;
     }
   else

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5a0617d211ad3ff8d32742f4360c107e3ba1880b..78fbbe328ae8a80492a958611fde8a279bda9bf2 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
 2017-05-30  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2017-03-03  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/79807
+       * gcc.target/i386/pr79807.c: New test.
+
        2017-02-28  Jakub Jelinek  <jakub@redhat.com>
 
        PR target/79729

diff --git a/gcc/testsuite/gcc.target/i386/pr79807.c b/gcc/testsuite/gcc.target/i386/pr79807.c
new file mode 100644 (file)
index 0000000..e491a4d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr79807.c
@@ -0,0 +1,12 @@
+/* PR target/79807 */
+/* { dg-do compile } */
+/* { dg-options "-O0 -mavx -ffloat-store" } */
+
+typedef double __v2df __attribute__ ((__vector_size__ (16)));
+typedef double __v4df __attribute__ ((__vector_size__ (32)));
+
+__v2df
+foo (__v4df x)
+{
+  return __builtin_ia32_pd_pd256 (x);
+}