On 09/18/2017 05:38 AM, Richard Sandiford wrote: > This patch stops combine from changing the mode of an existing register > in-place if doing so would change the size of the underlying register > allocation size, as given by REGMODE_NATURAL_SIZE. Without this, > many tests fail in adjust_reg_mode after SVE is added. One example > is gcc.c-torture/compile/20090401-1.c. > > Tested on aarch64-linux-gnu, x86_64-linux-gnu and powerpc64le-linux-gnu. > Also tested by comparing the testsuite assembly output on at least one > target per CPU directory. OK to install? > > Richard > > > 2017-09-18 Richard Sandiford <richard.sandif...@linaro.org> > Alan Hayward <alan.hayw...@arm.com> > David Sherwood <david.sherw...@arm.com> > > gcc/ > * combine.c (can_change_dest_mode): Reject changes in > REGMODE_NATURAL_SIZE. OK. jeff
