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sh.md (divsi3_i4_media): Use match_operand for input values rather than hard registers. 

* sh.md (divsi3_i4_media): Use match_operand for input values
	rather than hard registers.
	(divsi3 - TARGET_SHMEDIA_FPU case): Don't ferry values
	unnecessarily through hard registers.  Keep copies of pseudo
	registers outside of the libcall sequence.

	* sh.md (casesi_shift_media): Add modes.

From-SVN: r52732
This commit is contained in:
J"orn Rennecke 2002-04-24 21:35:43 +00:00 committed by Joern Rennecke
parent b700634a64
commit 51214775d0
2 changed files with 30 additions and 17 deletions
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10
gcc/ChangeLog
View File

@ -1,4 +1,12 @@
Wed Apr 24 21:20:58 2002 J"orn Rennecke <joern.rennecke@superh.com>
Wed Apr 24 21:25:59 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh.md (divsi3_i4_media): Use match_operand for input values
rather than hard registers.
(divsi3 - TARGET_SHMEDIA_FPU case): Don't ferry values
unnecessarily through hard registers. Keep copies of pseudo
registers outside of the libcall sequence.
* sh.md (casesi_shift_media): Add modes.
* sh.h (RETURN_IN_MEMORY): Return variable size BLKmode
values in memory.

37
gcc/config/sh/sh.md
View File

@ -1412,21 +1412,17 @@
"blink %1, r18")
(define_expand "divsi3_i4_media"
[(set (match_dup 2) (reg:SI R4_REG))
(set (match_dup 3) (reg:SI R5_REG))
(set (match_dup 4) (float:DF (match_dup 2)))
(set (match_dup 5) (float:DF (match_dup 3)))
(set (match_dup 6) (div:DF (match_dup 4) (match_dup 5)))
[(set (match_dup 3) (float:DF (match_operand:SI 1 "register_operand" "r")))
(set (match_dup 4) (float:DF (match_operand:SI 2 "register_operand" "r")))
(set (match_dup 5) (div:DF (match_dup 3) (match_dup 4)))
(set (match_operand:SI 0 "register_operand" "=r")
(fix:SI (match_dup 6)))]
(fix:SI (match_dup 5)))]
"TARGET_SHMEDIA_FPU"
"
{
operands[2] = gen_reg_rtx (SImode);
operands[3] = gen_reg_rtx (SImode);
operands[3] = gen_reg_rtx (DFmode);
operands[4] = gen_reg_rtx (DFmode);
operands[5] = gen_reg_rtx (DFmode);
operands[6] = gen_reg_rtx (DFmode);
}")
(define_insn "divsi3_i4"
@ -1472,7 +1468,7 @@
""
"
{
rtx first, last;
rtx first = 0, last;
operands[3] = gen_reg_rtx (Pmode);
/* Emit the move of the address to a pseudo outside of the libcall. */
@ -1486,7 +1482,12 @@
last = gen_divsi3_i4 (operands[0], operands[3]);
}
else if (TARGET_SHMEDIA_FPU)
last = gen_divsi3_i4_media (operands[0]);
{
operands[1] = force_reg (SImode, operands[1]);
operands[2] = force_reg (SImode, operands[2]);
last = gen_divsi3_i4_media (operands[0], operands[1], operands[2]);
first = XVECEXP (last, 0, 0);
}
else if (TARGET_SH5)
{
emit_move_insn (operands[3],
@ -1511,8 +1512,11 @@
emit_move_insn (operands[3], gen_rtx_SYMBOL_REF (SImode, \"__sdivsi3\"));
last = gen_divsi3_i1 (operands[0], operands[3]);
}
first = emit_move_insn (gen_rtx_REG (SImode, 4), operands[1]);
emit_move_insn (gen_rtx_REG (SImode, 5), operands[2]);
if (! first)
{
first = emit_move_insn (gen_rtx_REG (SImode, 4), operands[1]);
emit_move_insn (gen_rtx_REG (SImode, 5), operands[2]);
}
last = emit_insn (last);
/* Wrap the sequence in REG_LIBCALL / REG_RETVAL notes so that loop
invariant code motion can move it. */
@ -6458,9 +6462,10 @@
[(set_attr "length" "4")])
(define_insn "casesi_shift_media"
[(set (match_operand 0 "arith_reg_operand" "=r")
(ashift (match_operand 1 "arith_reg_operand" "r")
(unspec [(label_ref:DI (match_operand 2 "" ""))] 2)))]
[(set (match_operand:DI 0 "arith_reg_operand" "=r")
(ashift:DI (match_operand:DI 1 "arith_reg_operand" "r")
(unspec:DI [(label_ref:DI (match_operand 2 "" ""))]
UNSPEC_CASESI)))]
"TARGET_SHMEDIA"
"*
{