re PR target/53383 (Allow -mpreferred-stack-boundary=3 on x86-64)

	PR target/53383
	* config/i386/i386.c (ix86_option_override_internal): Always
	allow -mincoming-stack-boundary=3 for 64-bit targets.

testsuite/ChangeLog:

	PR target/53383
	* gcc.target/i386/pr53383-1.c (dg-options): Remove -mno-sse.
	* gcc.target/i386/pr53383-2.c (dg-options): Ditto.
	* gcc.target/i386/pr53383-3.c (dg-options): Ditto.

From-SVN: r246543

gcc/ChangeLog

+2017-03-28  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/53383
+	* config/i386/i386.c (ix86_option_override_internal): Always
+	allow -mincoming-stack-boundary=3 for 64-bit targets.
+
 2017-03-28  Bin Cheng  <bin.cheng@arm.com>
 
-	* tree-vect-loop.c (optimize_mask_stores): Add bb to the right
-	loop.
+	* tree-vect-loop.c (optimize_mask_stores): Add bb to the right loop.
 
 2017-03-28  Bin Cheng  <bin.cheng@arm.com>
 

gcc/config/i386/i386.c

@@ -5927,9 +5927,8 @@ ix86_option_override_internal (bool main_args_p,
   ix86_preferred_stack_boundary = PREFERRED_STACK_BOUNDARY_DEFAULT;
   if (opts_set->x_ix86_preferred_stack_boundary_arg)
     {
-      int min = (TARGET_64BIT_P (opts->x_ix86_isa_flags)
-		 ? (TARGET_SSE_P (opts->x_ix86_isa_flags) ? 4 : 3) : 2);
-      int max = (TARGET_SEH ? 4 : 12);
+      int min = TARGET_64BIT_P (opts->x_ix86_isa_flags)? 3 : 2;
+      int max = TARGET_SEH ? 4 : 12;
 
       if (opts->x_ix86_preferred_stack_boundary_arg < min
 	  || opts->x_ix86_preferred_stack_boundary_arg > max)

gcc/testsuite/ChangeLog

+2017-03-28  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/53383
+	* gcc.target/i386/pr53383-1.c (dg-options): Remove -mno-sse.
+	* gcc.target/i386/pr53383-2.c (dg-options): Ditto.
+	* gcc.target/i386/pr53383-3.c (dg-options): Ditto.
+
 2017-03-28  Bin Cheng  <bin.cheng@arm.com>
 
 	* gcc.c-torture/compile/irreducible-loop.c: New.

gcc/testsuite/gcc.target/i386/pr53383-1.c

 /* { dg-do compile } */
-/* { dg-options "-O2 -mno-sse -mpreferred-stack-boundary=3" } */
+/* { dg-options "-O2 -mpreferred-stack-boundary=3" } */
 
 int
 bar (int x)

gcc/testsuite/gcc.target/i386/pr53383-2.c

 /* { dg-do compile } */
-/* { dg-options "-O2 -mno-sse -mpreferred-stack-boundary=3 -mincoming-stack-boundary=3" } */
+/* { dg-options "-O2 -mpreferred-stack-boundary=3 -mincoming-stack-boundary=3" } */
 
 int
 bar (int x)

gcc/testsuite/gcc.target/i386/pr53383-3.c

 /* { dg-do compile } */
-/* { dg-options "-O2 -mno-sse -mincoming-stack-boundary=3 -mpreferred-stack-boundary=3" } */
+/* { dg-options "-O2 -mincoming-stack-boundary=3 -mpreferred-stack-boundary=3" } */
 
 int
 bar (int x)