The Polyhedron 2005 induct benchmark averages 12.44 seconds run-time when compiled with...
gfortran -ffast-math -funroll-loops -msse3 -O3 induct.f90 -o induct but averages 20.2 seconds when compiled with -fgraphite-identity added to the compilation flags. This issue remains after... http://gcc.gnu.org/ml/gcc-patches/2009-08/msg00220.html http://gcc.gnu.org/ml/gcc-patches/2009-08/msg00294.html are applied to r150500. -- Summary: induct benchmark 60% slower when compiled with - fgraphite-identity Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: howarth at nitro dot med dot uc dot edu GCC build triplet: x86_64-apple-darwin10 GCC host triplet: x86_64-apple-darwin10 GCC target triplet: x86_64-apple-darwin10 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40979
