OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

sh.md (cond_delay_slot): New attribute. 

* sh.md (cond_delay_slot): New attribute.
	(cbranch delay): Use it for anulled-true case.
	(stuff_delay_slot): New pattern.
	* sh.c (print_operand, case '.'): Don't print .s / /s fore zero-length
	delay slot insn.
	(gen_far_branch): Emit stuff_delay_slot pattern.

From-SVN: r55878
This commit is contained in:
J"orn Rennecke 2002-07-30 17:39:27 +00:00 committed by Joern Rennecke
parent 0a7564014a
commit c608a68464
3 changed files with 33 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
Tue Jul 30 18:31:31 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh.md (cond_delay_slot): New attribute.
(cbranch delay): Use it for anulled-true case.
(stuff_delay_slot): New pattern.
* sh.c (print_operand, case '.'): Don't print .s / /s fore zero-length
delay slot insn.
(gen_far_branch): Emit stuff_delay_slot pattern.
Tue Jul 30 11:21:44 2002 J"orn Rennecke <joern.rennecke@superh.com>
* unroll.c (copy_loop_body): Don't copy NOTE_INSN_LOOP_CONT.

8
gcc/config/sh/sh.c
View File

@ -346,7 +346,8 @@ print_operand (stream, x, code)
{
case '.':
if (final_sequence
&& ! INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0)))
&& ! INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0))
&& get_attr_length (XVECEXP (final_sequence, 0, 1)))
fprintf (stream, ASSEMBLER_DIALECT ? "/s" : ".s");
break;
case ',':
@ -3212,6 +3213,11 @@ gen_far_branch (bp)
JUMP_LABEL (jump) = bp->far_label;
if (! invert_jump (insn, label, 1))
abort ();
(emit_insn_after
(gen_stuff_delay_slot
(GEN_INT (INSN_UID (XEXP (SET_SRC (PATTERN (jump)), 0))),
GEN_INT (recog_memoized (insn) == CODE_FOR_branch_false)),
insn));
/* Prevent reorg from undoing our splits. */
gen_block_redirect (jump, bp->address += 2, 2);
}

18
gcc/config/sh/sh.md
View File

@ -696,6 +696,10 @@
(eq_attr "length" "2") (const_string "yes")
] (const_string "no")))
(define_attr "cond_delay_slot" "yes,no"
(cond [(eq_attr "in_delay_slot" "yes") (const_string "yes")
] (const_string "no")))
(define_attr "is_sfunc" ""
(if_then_else (eq_attr "type" "sfunc") (const_int 1) (const_int 0)))
@ -738,7 +742,7 @@
(define_delay
(and (eq_attr "type" "cbranch")
(ne (symbol_ref "TARGET_SH2") (const_int 0)))
[(eq_attr "in_delay_slot" "yes") (eq_attr "in_delay_slot" "yes") (nil)])
[(eq_attr "in_delay_slot" "yes") (eq_attr "cond_delay_slot" "yes") (nil)])
;; -------------------------------------------------------------------------
;; SImode signed integer comparisons
@ -5141,6 +5145,18 @@
"TARGET_SH1"
""
[(set_attr "length" "0")])
;; This one is used to preemt an insn from beyond the bra / braf / jmp
;; being pulled into the delay slot of a condbranch that has been made to
;; jump around the unconditional jump because it was out of range.
(define_insn "stuff_delay_slot"
[(set (pc)
(unspec [(match_operand 0 "const_int_operand" "") (pc)] UNSPEC_BBR))
(set (reg:SI T_REG) (match_operand 1 "const_int_operand" ""))]
"TARGET_SH1"
""
[(set_attr "length" "0")
(set_attr "cond_delay_slot" "yes")])
;; Conditional branch insns