On 11/25/20 6:06 PM, Marius Hillenbrand wrote: > Historically, float_t has been defined as double on s390 and gcc would > emit double precision insns for evaluating float expressions when in > standard-compliant mode. Configure that behavior at compile-time as prep > for changes in glibc: When glibc ties float_t to double, keep the old > behavior; when glibc derives float_t from FLT_EVAL_METHOD (as on most > other archs), revert to the default behavior (i.e., > FLT_EVAL_METHOD_PROMOTE_TO_FLOAT). Provide a configure option > --enable-s390-excess-float-precision to override the check. > > gcc/ChangeLog: > > 2020-11-25 Marius Hillenbrand <mhil...@linux.ibm.com> > > * configure.ac: Add configure option > --enable-s390-excess-float-precision and check to derive default > from glibc. > * config/s390/s390.c: Guard s390_excess_precision with an ifdef > for ENABLE_S390_EXCESS_FLOAT_PRECISION. > * doc/install.texi: Document --enable-s390-excess-float-precision. > * configure: Regenerate. > * config.in: Regenerate.
Ok. Applied to mainline. Thanks! Andreas
