Il 29/11/2012 23:47, Uros Bizjak ha scritto: > This one-liner causes following runtime test failure [1] for > alphaev68-linux-gnu: > > FAIL: gfortran.fortran-torture/execute/save_1.f90 execution, -O2 > FAIL: gfortran.fortran-torture/execute/save_1.f90 execution, -O2 > -fomit-frame-pointer -finline-functions > FAIL: gfortran.fortran-torture/execute/save_1.f90 execution, -O2 > -fomit-frame-pointer -finline-functions -funroll-loops > FAIL: gfortran.fortran-torture/execute/save_1.f90 execution, -O2 > -fbounds-check > > The patch miscompiles libgfortran library. > > I will provide more info tomorrow, any hint what/where should I look > for differences?
Anywhere. The bug disabled a large part of alias analysis. Perhaps you can bisect it and backport the fix along the steps. Paolo
