[Bug tree-optimization/91071] [10 Regression] Miscompare of 410.bwaves since r272644
marxin at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Jul 3 12:28:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91071
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |26163
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
The benchmark somehow iterates and we differ in in bwaves2.out, which is: "The
residual for convergence after each time step".
Following configuration tweak fixes the issue:
diff --git a/benchspec/CPU2006/410.bwaves/Spec/object.pm
b/benchspec/CPU2006/410.bwaves/Spec/object.pm
index 242ca26d..0a343023 100644
--- a/benchspec/CPU2006/410.bwaves/Spec/object.pm
+++ b/benchspec/CPU2006/410.bwaves/Spec/object.pm
@@ -4,7 +4,7 @@ $exename = 'bwaves';
$benchlang = 'F'; # was F77, in the olden days
@base_exe = ($exename);
-$reltol = {'bwaves2.out' => 0.015,
+$reltol = {'bwaves2.out' => 0.018,
'bwaves3.out' => 0.000001,
'default' => undef};
I tend to close this as invalid..
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
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