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
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parent
0a7564014a
commit
c608a68464
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@ -1,3 +1,12 @@
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Tue Jul 30 18:31:31 2002 J"orn Rennecke <joern.rennecke@superh.com>
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* sh.md (cond_delay_slot): New attribute.
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(cbranch delay): Use it for anulled-true case.
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(stuff_delay_slot): New pattern.
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* sh.c (print_operand, case '.'): Don't print .s / /s fore zero-length
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delay slot insn.
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(gen_far_branch): Emit stuff_delay_slot pattern.
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Tue Jul 30 11:21:44 2002 J"orn Rennecke <joern.rennecke@superh.com>
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* unroll.c (copy_loop_body): Don't copy NOTE_INSN_LOOP_CONT.
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@ -346,7 +346,8 @@ print_operand (stream, x, code)
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{
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case '.':
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if (final_sequence
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&& ! INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0)))
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&& ! INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0))
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&& get_attr_length (XVECEXP (final_sequence, 0, 1)))
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fprintf (stream, ASSEMBLER_DIALECT ? "/s" : ".s");
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break;
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case ',':
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@ -3212,6 +3213,11 @@ gen_far_branch (bp)
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JUMP_LABEL (jump) = bp->far_label;
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if (! invert_jump (insn, label, 1))
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abort ();
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(emit_insn_after
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(gen_stuff_delay_slot
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(GEN_INT (INSN_UID (XEXP (SET_SRC (PATTERN (jump)), 0))),
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GEN_INT (recog_memoized (insn) == CODE_FOR_branch_false)),
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insn));
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/* Prevent reorg from undoing our splits. */
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gen_block_redirect (jump, bp->address += 2, 2);
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}
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@ -696,6 +696,10 @@
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(eq_attr "length" "2") (const_string "yes")
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] (const_string "no")))
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(define_attr "cond_delay_slot" "yes,no"
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(cond [(eq_attr "in_delay_slot" "yes") (const_string "yes")
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] (const_string "no")))
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(define_attr "is_sfunc" ""
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(if_then_else (eq_attr "type" "sfunc") (const_int 1) (const_int 0)))
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@ -738,7 +742,7 @@
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(define_delay
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(and (eq_attr "type" "cbranch")
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(ne (symbol_ref "TARGET_SH2") (const_int 0)))
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[(eq_attr "in_delay_slot" "yes") (eq_attr "in_delay_slot" "yes") (nil)])
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[(eq_attr "in_delay_slot" "yes") (eq_attr "cond_delay_slot" "yes") (nil)])
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;; -------------------------------------------------------------------------
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;; SImode signed integer comparisons
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@ -5141,6 +5145,18 @@
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"TARGET_SH1"
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""
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[(set_attr "length" "0")])
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;; This one is used to preemt an insn from beyond the bra / braf / jmp
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;; being pulled into the delay slot of a condbranch that has been made to
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;; jump around the unconditional jump because it was out of range.
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(define_insn "stuff_delay_slot"
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[(set (pc)
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(unspec [(match_operand 0 "const_int_operand" "") (pc)] UNSPEC_BBR))
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(set (reg:SI T_REG) (match_operand 1 "const_int_operand" ""))]
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"TARGET_SH1"
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""
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[(set_attr "length" "0")
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(set_attr "cond_delay_slot" "yes")])
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;; Conditional branch insns
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