MatCat.OpenSource/8sa1-gcc
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

(casesi_jump): New pattern.

Browse Source 
(casesi): Generate RTL to match it.

From-SVN: r12600
This commit is contained in:
Jim Wilson 1996-08-07 16:02:30 -07:00
parent 61b2fbe73e
commit f1ffca1c5a
1 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
gcc/config/sh/sh.md
View File

@ -1691,6 +1691,18 @@
"jmp @%0%#"
[(set_attr "needs_delay_slot" "yes")])
;; This might seem redundant, but it helps us distinguish case table jumps
;; which can be present in structured code from indirect jumps which can not
;; be present in structured code. This allows -fprofile-arcs to work.
(define_insn "*casesi_jump"
[(set (pc)
(match_operand:SI 0 "arith_reg_operand" "r"))
(use (label_ref (match_operand 1 "" "")))]
""
"jmp @%0%#"
[(set_attr "needs_delay_slot" "yes")])
;; Call subroutine returning any type.
;; ??? This probably doesn't work.
@ -1783,7 +1795,8 @@
(mem:HI (plus:SI (reg:SI 0)
(match_dup 6)))))
(set (match_dup 6) (mem:HI (plus:SI (reg:SI 0) (match_dup 6))))])
(set (pc) (reg:SI 0))]
(parallel [(set (pc) (reg:SI 0))
(use (label_ref (match_dup 3)))])]
""
"
{