Re: [committed] Add test for PR85770.

[Jakub Jelinek <jakub@redhat.com>]

On Wed, Dec 05, 2018 at 05:41:49PM -0700, Jeff Law wrote:
> 
> PR85770 is fixed by Segher's combiner patch to avoid combining hard
> regs.  Presumably it helps because it gives the allocators more freedom.
> 
> I'm adding the testcase from the PR to the regression suite.
> 
> Jeff

> commit 40fc691eac0ea9414f7908826c91afc70ff78617
> Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
> Date:   Thu Dec 6 00:40:08 2018 +0000
> 
>             PR rtl-optimization/85770
>             * gcc.target/i386/pr85770.c: New test.

The test FAILs on i686-linux, because __int128 is not supported on 32-bit
targets.

Fixed thusly, tested on x86_64-linux and i686-linux, committed as obvious to
trunk.

2018-12-07  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/85770
	* gcc.target/i386/pr85770.c: Require int128 effective target.

--- gcc/testsuite/gcc.target/i386/pr85770.c	(revision 266876)
+++ gcc/testsuite/gcc.target/i386/pr85770.c	(working copy)
@@ -1,4 +1,5 @@
-/* { dg-do compile } */
+/* PR rtl-optimization/85770 */
+/* { dg-do compile { target int128 } } */
 /* { dg-options "-O2 -march=nano-1000 -fnon-call-exceptions -fno-tree-coalesce-vars" } */
 
 unsigned a, b, c, d, e, f, g, h, i;
@@ -14,4 +15,3 @@ __int128 foo(char k, unsigned short l, u
   return k + l + m + n + o + a + b + c + d + j + l + e + f + q + 4294967295 +
          p + g + h + i;
 }
-


	Jakub