diff options
Diffstat (limited to 'contrib/gcc/config/ia64/ia64.md')
| -rw-r--r-- | contrib/gcc/config/ia64/ia64.md | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/contrib/gcc/config/ia64/ia64.md b/contrib/gcc/config/ia64/ia64.md index 4baa5d3..3b88d9f 100644 --- a/contrib/gcc/config/ia64/ia64.md +++ b/contrib/gcc/config/ia64/ia64.md @@ -73,6 +73,7 @@ (UNSPEC_BUNDLE_SELECTOR 23) (UNSPEC_ADDP4 24) (UNSPEC_PROLOGUE_USE 25) + (UNSPEC_RET_ADDR 26) ]) (define_constants @@ -416,6 +417,25 @@ DONE; }) +;; This is used as a placeholder for the return address during early +;; compilation. We won't know where we've placed this until during +;; reload, at which point it can wind up in b0, a general register, +;; or memory. The only safe destination under these conditions is a +;; general register. + +(define_insn_and_split "*movdi_ret_addr" + [(set (match_operand:DI 0 "register_operand" "=r") + (unspec:DI [(const_int 0)] UNSPEC_RET_ADDR))] + "" + "#" + "reload_completed" + [(const_int 0)] +{ + ia64_split_return_addr_rtx (operands[0]); + DONE; +} + [(set_attr "itanium_class" "ialu")]) + (define_insn "*movdi_internal" [(set (match_operand:DI 0 "destination_operand" "=r,r,r,r, m, r,*f,*f,*f, Q, r,*b, r,*e, r,*d, r,*c") |
