https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86101
Bug ID: 86101
Summary: [8/9 Regression] IEEE_UNDERFLOW_FLAG in 416.gamess
with -Ofast -march=native on bdver4
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Blocks: 26163
Target Milestone: ---
Starting from r259592 the benchmark fails:
****************************************
Contents of h2ocu2+.gradient.err
****************************************
Note: The following floating-point exceptions are signalling:
IEEE_UNDERFLOW_FLAG
****************************************
****************************************
Contents of triazolium.err
****************************************
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
****************************************
*** Miscompare of cytosine.2.out; for details see
/home/gcc/buildworker/source/cpu2006/benchspec/CPU2006/416.gamess/run/run_peak_ref_amd64-m64-mine.0001/cytosine.2.out.mis
Flags:
-Ofast -march=native -g -std=legacy
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)
