Re: [PATCH] Don't error about x86 return value in SSE reg (or x86 reg) or argument in SSE reg too early (PR target/80298)

[Uros Bizjak <ubizjak@gmail.com>]

On Wed, Apr 5, 2017 at 5:37 PM, Uros Bizjak <ubizjak@gmail.com> wrote:

> 2017-04-05  Uros Bizjak  <ubizjak@gmail.com>
>
>     PR target/80298
>     * config/i386/mmintrin.h: Add -msse target option when __SSE__ is
>     not defined for x86_64 target.  Add -mmmx target option when __SSE2__
>     is not defined.
>     * config/i386/mm3dnow.h: Add -msse target when __SSE__ is not defined
>     for x86_64 target.  Handle -m3dnowa option.
>
> I choose not to include testcases, since mm_malloc includes stdlib.h,
> which uses SSE register return with -O2, resulting in:

Including only <mm3dnow.h> and its dependant mmintrin.h tests the
issue as well while avoiding external include files.

2017-04-06  Uros Bizjak  <ubizjak@gmail.com>

    PR target/80298
    * gcc.target/i386/pr80298-1.c: New test.
    * gcc.target/i386/pr80298-2.c: Ditto.

Tested on x86_64-linux-gnu {,-m32} and committed to mainline SVN.

Uros.

Index: gcc.target/i386/pr80298-1.c
===================================================================
--- gcc.target/i386/pr80298-1.c (nonexistent)
+++ gcc.target/i386/pr80298-1.c (working copy)
@@ -0,0 +1,7 @@
+/* PR target/80298 */
+/* { dg-do compile } */
+/* { dg-options "-mno-sse -mmmx" } */
+
+#include <mm3dnow.h>
+
+int i;
Index: gcc.target/i386/pr80298-2.c
===================================================================
--- gcc.target/i386/pr80298-2.c (nonexistent)
+++ gcc.target/i386/pr80298-2.c (working copy)
@@ -0,0 +1,7 @@
+/* PR target/80298 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mno-sse -mmmx" } */
+
+#include <mm3dnow.h>
+
+int i;