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sync.md (atomic_exchange<mode>): New expander. 

* config/sh/sync.md (atomic_exchange<mode>): New expander.
	(atomic_exchange<mode>_soft): New insn.

From-SVN: r184827
This commit is contained in:
Oleg Endo 2012-03-02 21:07:21 +00:00
parent 349e6f0526
commit b5ea803681
2 changed files with 46 additions and 2 deletions
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9
gcc/ChangeLog
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@ -1,9 +1,14 @@
2012-03-02 Oleg Endo <olegendo@gcc.gnu.org>
* config/sh/sync.md: Update copyright notice dates.
* config/sh/sync.md (atomic_exchange<mode>): New expander.
(atomic_exchange<mode>_soft): New insn.
2012-03-02 Oleg Endo <olegendo@gcc.gnu.org>
* config/sh/sync.md: Update copyright notice dates.
(atomic_compare_and_swap<mode>): Use SImode for return value instead
of QImode.
(atomic_compare_and_swap<mode>_soft): Likewise.
(atomic_compare_and_swap<mode>_soft): Likewise.
2012-03-02 Oleg Endo <olegendo@gcc.gnu.org>

39
gcc/config/sh/sync.md
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@ -164,6 +164,45 @@
}
[(set_attr "length" "20")])
(define_expand "atomic_exchange<mode>"
[(match_operand:I124 0 "register_operand" "") ;; oldval output
(match_operand:I124 1 "memory_operand" "") ;; memory
(match_operand:I124 2 "register_operand" "") ;; newval input
(match_operand:SI 3 "const_int_operand" "")] ;; memory model
"TARGET_SOFT_ATOMIC && !TARGET_SHMEDIA"
{
rtx addr = force_reg (Pmode, XEXP (operands[1], 0));
emit_insn (gen_atomic_exchange<mode>_soft
(operands[0], addr, operands[2]));
if (<MODE>mode == QImode)
emit_insn (gen_zero_extendqisi2 (gen_lowpart (SImode, operands[0]),
operands[0]));
else if (<MODE>mode == HImode)
emit_insn (gen_zero_extendhisi2 (gen_lowpart (SImode, operands[0]),
operands[0]));
DONE;
})
(define_insn "atomic_exchange<mode>_soft"
[(set (match_operand:I124 0 "register_operand" "=&u")
(mem:I124 (match_operand:SI 1 "register_operand" "u")))
(set (mem:I124 (match_dup 1))
(unspec:I124
[(match_operand:I124 2 "register_operand" "u")] UNSPEC_ATOMIC))
(clobber (reg:SI R0_REG))
(clobber (reg:SI R1_REG))]
"TARGET_SOFT_ATOMIC && !TARGET_SHMEDIA"
{
return "mova 1f,r0" "\n"
" .align 2" "\n"
" mov r15,r1" "\n"
" mov #(0f-1f),r15" "\n"
"0: mov.<i124suffix> @%1,%0" "\n"
" mov.<i124suffix> %2,@%1" "\n"
"1: mov r1,r15";
}
[(set_attr "length" "14")])
(define_expand "atomic_fetch_<fetchop_name><mode>"
[(set (match_operand:I124 0 "register_operand" "")
(match_operand:I124 1 "memory_operand" ""))