[Bug target/50725] [4.7 regression] -O3 -mstackrealign -march=core2 generates invalid prologue code in callee procedure

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50725

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-30 
22:00:33 UTC ---
Author: jakub
Date: Wed Nov 30 22:00:28 2011
New Revision: 181860

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181860
Log:
    PR target/50725
    * function.c (thread_prologue_and_epilogue_insns): If
    stack_realign_drap, add drap_reg to SET_UP_BY_PROLOGUE
    regset.

    * gcc.target/i386/pr50725.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr50725.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/function.c
    trunk/gcc/testsuite/ChangeLog