https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66253
Bug ID: 66253
Summary: [6 Regression] 459.GemsFDTD in SPEC CPU 2006 is
miscompiled
Product: gcc
Version: 5.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
On Linux/x86-64, 459.GemsFDTD in SPEC CPU 2006 is miscompiled:
gfortran -O3 -funroll-loops -ffast-math -DSPEC_CPU_LP64 errorcheck.o
parameter.o globalvar.o excite.o fourier_transf.o huygens.fppized.o posvector.o
NFT.fppized.o readline.o PEC.o UPML.fppized.o calcflops.o progress.o
update.fppized.o leapfrog.o readdata.o GemsFDTD.o timerRoutine.o
-o GemsFDTD
Running Benchmarks
Running 459.GemsFDTD ref peak lnx32e-gcc default
*** Miscompare of sphere_td.nft; for details see
r223425 is OK and r223491 is bad.
