Hi!

I've noticed the avx512f-vgetmantpd-2.c testcase eats lots of
CPU time on KNL with -m32 and FAILs.  The problem is
excess precision, I've added -mfpmath=sse to it to fix that.

Tested with                                                                     
                                                                   
make -j272 -k check-gcc RUNTESTFLAGS='--target_board=unix\{-m32,-m64\} 
i386.exp'                                                                   
on KNL, ok for trunk?

2017-04-07  Jakub Jelinek  <ja...@redhat.com>

        * gcc.target/i386/avx512f-vgetmantps-2.c: Add -mfpmath=sse to
        dg-options.
        * gcc.target/i386/avx512f-vgetmantpd-2.c: Likewise.

--- gcc/testsuite/gcc.target/i386/avx512f-vgetmantps-2.c.jj     2017-04-07 
05:52:04.000000000 -0400
+++ gcc/testsuite/gcc.target/i386/avx512f-vgetmantps-2.c        2017-04-07 
09:22:13.051209011 -0400
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-O2 -mavx512f -std=c99" } */
+/* { dg-options "-O2 -mavx512f -std=c99 -mfpmath=sse" } */
 /* { dg-require-effective-target avx512f } */
 /* { dg-require-effective-target c99_runtime } */
 
--- gcc/testsuite/gcc.target/i386/avx512f-vgetmantpd-2.c.jj     2017-04-07 
05:51:49.000000000 -0400
+++ gcc/testsuite/gcc.target/i386/avx512f-vgetmantpd-2.c        2017-04-07 
09:21:46.648317195 -0400
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-O2 -mavx512f -std=c99" } */
+/* { dg-options "-O2 -mavx512f -std=c99 -mfpmath=sse" } */
 /* { dg-require-effective-target avx512f } */
 /* { dg-require-effective-target c99_runtime } */
 

        Jakub

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