https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83905
--- Comment #2 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> --- Author: hjl Date: Tue Jan 23 19:30:32 2018 New Revision: 256996 URL: https://gcc.gnu.org/viewcvs?rev=256996&root=gcc&view=rev Log: i386: Use const reference of struct ix86_frame to avoid copy We can use const reference of struct ix86_frame to avoid making a local copy of ix86_frame. ix86_expand_epilogue makes a local copy of struct ix86_frame and uses the reg_save_offset field as a local variable. This patch uses a separate local variable for reg_save_offset. Tested on x86-64 with ada. PR target/83905 * config/i386/i386.c (ix86_expand_prologue): Use cost reference of struct ix86_frame. (ix86_expand_epilogue): Likewise. Add a local variable for the reg_save_offset field in struct ix86_frame. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c
