Bernd Schmidt wrote: > On 07/13/11 21:22, Ulrich Weigand wrote: > > several builtin-bitops-1.c tests have been failing recently on SPU > > since the new clrsb builtin is not supported. > > That's odd, it should just have picked the libgcc function rather than > causing test failures. Why didn't that happen?
That's the usual word_mode == TImode problem on SPU. By default, only libgcc functions for word_mode and up are installed into the optabs libfunc table. This means that on SPU, the default behaviour of GCC is to call __clrsbti2, which of course does not exist in libgcc ... This means that on SPU, all SImode/DImode libgcc routines that should be called need to be installed into optabs specifically by the back-end. That's what my patch does for __clrsbdi2. (For __clrsbsi2, I'm just providing an in-line expander instead, no need to call a libfunc.) Bye, Ulrich -- Dr. Ulrich Weigand GNU Toolchain for Linux on System z and Cell BE ulrich.weig...@de.ibm.com
