https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90610
Bug ID: 90610
Summary: [10 Regression] 526.blender_r miscompared on znver1
with -Ofast -march=native since r271463
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
Target Milestone: ---
I see following miscomparison:
Running 526.blender_r refrate (ref) peak gcc7-m64 (1 copy) [2019-05-24
10:53:13]
Error with '/home/marxin/Programming/cpu2017/bin/specinvoke -d
/home/marxin/Programming/cpu2017/benchspec/CPU/526.blender_r/run/run_peak_refrate_gcc7-m64.0001
-f compare.cmd -E -e compare.err -o compare.stdout'; no non-empty output files
exist
Command returned exit code 1
****************************************
Contents of imagevalidate_sh3_no_char_0849.err
****************************************
ImageValidator r4696
INFO: threshold set to 0.750000
INFO: max threshold set to 0 absolute, 0.010000 relative
Blocks below threshold: 406 blocks of 144 allowed (14400 total)
AVG SSIM: 0.980123076
MIN SSIM: -0.481028709
SSIM distribution:
[ 1.000]: 5014
[ 0.900, 1.000): 8836
[ 0.800, 0.900): 103
[ 0.700, 0.800): 71
[ 0.600, 0.700): 62
[ 0.500, 0.600): 59
[ 0.400, 0.500): 73
[ 0.300, 0.400): 49
[ 0.200, 0.300): 30
[ 0.100, 0.200): 31
[ 0.000, 0.100): 39
[-0.100, 0.000): 26
[-0.200, -0.100): 5
[-0.300, -0.200): 1
[-0.400, -0.300): 0
[-0.500, -0.400): 1
[-0.600, -0.500): 0
[-0.700, -0.600): 0
[-0.800, -0.700): 0
[-0.900, -0.800): 0
[-1.000, -0.900): 0
