diff options
Diffstat (limited to 'gcc-4.9/gcc/postreload.c')
| -rw-r--r-- | gcc-4.9/gcc/postreload.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/postreload.c b/gcc-4.9/gcc/postreload.c index 9bfffe5f4..797668b19 100644 --- a/gcc-4.9/gcc/postreload.c +++ b/gcc-4.9/gcc/postreload.c @@ -493,7 +493,13 @@ reload_cse_simplify_operands (rtx insn, rtx testreg) continue; for (l = v->locs; l; l = l->next) - if (REG_P (l->loc)) + if (REG_P (l->loc) + /* If postreload cse replace an expr in call insn with + frame pointer reg, we will end up getting call (...bp...), + this is wrong for frame pointer shrinkwrapping. */ + && !(frame_pointer_partially_needed + && CALL_P (insn) + && REGNO (l->loc) == HARD_FRAME_POINTER_REGNUM)) SET_HARD_REG_BIT (equiv_regs[i], REGNO (l->loc)); } |