[RFC PATCH 3/9] Add TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV target macro

This was discussed in PR55212 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c25 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c58 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c69 and is to fix another ICEs in assign_by_spills. This patch introduces a new target hook to disable rep

Re: [RFC PATCH 3/9] Add TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV target macro

On 2014-12-17 8:00 PM, Kaz Kojima wrote: This was discussed in PR55212 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c25 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c58 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c69 and is to fix another ICEs in assign_by_spills. This patch

Re: [RFC PATCH 3/9] Add TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV target macro

Vladimir Makarov wrote: > I don't think it will be easy to solve this problem by following reg > pressure. I guess R0 will be in the same pressure reg class. I > believe some hook is an adequate solution here. > >> -- >> * lra-constraints.c (get_equiv): Don't return memory equivalence >>