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 <ja...@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
