+2002-03-18 Bernd Schmidt <bernds@redhat.com>
+
+ * config/arm/arm.c (arm_gen_movstrqi): Use gen_lowpart instead
+ of gen_rtx_SUBREG.
+ (arm_reload_out_hi): Use gen_lowpart instead of
+ gen_rtx_SUBREG to access QImode components.
+ * config/arm/arm.md: Disable zero_extend split for QImode
+ subregs in BIG_ENDIAN mode.
+ (storehi_bigend): Match use of least significant byte.
+ (storeinthi): Remove extraneous SUBREG.
+ Add missing sonstruction of operands[2].
+ (movhi): Use gen_lowpart in place of gen_rtx_SUBREG.
+ (movqi): Use gen_lowpart in place of gen_rtx_SUBREG.
+ Replace gen_rtx (SUBREG) with gen_rtx_SUBREG.
+
2002-03-18 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.h (PREDICATE_CODES): Add PARALLEL to
* config/arm/arm.c (arm_hard_regno_mode_ok): Allow any value in
any geenral register.
-2001-02-04 Bernd Schmidt <bernds@redhat.com>
+2001-02-04 Bernd Schmidt <bernds@redhat.com>s
* cfgrtl.c (force_nonfallthru_and_redirect): Don't try to redirect
the entry block.
RTX_UNCHANGING_P (mem) = dst_unchanging_p;
MEM_IN_STRUCT_P (mem) = dst_in_struct_p;
MEM_SCALAR_P (mem) = dst_scalar_p;
- emit_move_insn (mem, gen_rtx_SUBREG (QImode, part_bytes_reg, 0));
-
+ emit_move_insn (mem, gen_lowpart (QImode, part_bytes_reg));
+
if (--last_bytes)
{
tmp = gen_reg_rtx (SImode);
RTX_UNCHANGING_P (mem) = dst_unchanging_p;
MEM_IN_STRUCT_P (mem) = dst_in_struct_p;
MEM_SCALAR_P (mem) = dst_scalar_p;
- emit_move_insn (mem, gen_rtx_SUBREG (HImode, part_bytes_reg, 0));
+ emit_move_insn (mem, gen_lowpart (HImode, part_bytes_reg));
last_bytes -= 2;
if (last_bytes)
{
RTX_UNCHANGING_P (mem) = dst_unchanging_p;
MEM_IN_STRUCT_P (mem) = dst_in_struct_p;
MEM_SCALAR_P (mem) = dst_scalar_p;
- emit_move_insn (mem, gen_rtx_SUBREG (QImode, part_bytes_reg, 0));
+ emit_move_insn (mem, gen_lowpart (QImode, part_bytes_reg));
}
}
{
emit_insn (gen_movqi (gen_rtx_MEM (QImode,
plus_constant (base, offset + 1)),
- gen_rtx_SUBREG (QImode, outval, 0)));
+ gen_lowpart (QImode, outval)));
emit_insn (gen_lshrsi3 (scratch,
gen_rtx_SUBREG (SImode, outval, 0),
GEN_INT (8)));
emit_insn (gen_movqi (gen_rtx_MEM (QImode, plus_constant (base, offset)),
- gen_rtx_SUBREG (QImode, scratch, 0)));
+ gen_lowpart (QImode, scratch)));
}
else
{
emit_insn (gen_movqi (gen_rtx_MEM (QImode, plus_constant (base, offset)),
- gen_rtx_SUBREG (QImode, outval, 0)));
+ gen_lowpart (QImode, outval)));
emit_insn (gen_lshrsi3 (scratch,
gen_rtx_SUBREG (SImode, outval, 0),
GEN_INT (8)));
emit_insn (gen_movqi (gen_rtx_MEM (QImode,
plus_constant (base, offset + 1)),
- gen_rtx_SUBREG (QImode, scratch, 0)));
+ gen_lowpart (QImode, scratch)));
}
}
\f
[(set (match_operand:SI 0 "s_register_operand" "")
(zero_extend:SI (subreg:QI (match_operand:SI 1 "" "") 0)))
(clobber (match_operand:SI 2 "s_register_operand" ""))]
- "TARGET_ARM && (GET_CODE (operands[1]) != MEM)"
+ "TARGET_ARM && (GET_CODE (operands[1]) != MEM) && ! BYTES_BIG_ENDIAN"
[(set (match_dup 2) (match_dup 1))
(set (match_dup 0) (and:SI (match_dup 2) (const_int 255)))]
""
[(set (match_dup 4) (match_dup 3))
(set (match_dup 2)
(ashiftrt:SI (match_operand 0 "" "") (const_int 8)))
- (set (match_operand 1 "" "") (subreg:QI (match_dup 2) 0))]
+ (set (match_operand 1 "" "") (subreg:QI (match_dup 2) 3))]
"TARGET_ARM"
"
{
(define_expand "storeinthi"
[(set (match_operand 0 "" "")
(subreg:QI (match_operand 1 "" "") 0))
- (set (match_dup 3) (subreg:QI (match_dup 2) 0))]
+ (set (match_dup 3) (match_dup 2))]
"TARGET_ARM"
"
{
operands[3] = adjust_address (op0, QImode, 1);
operands[0] = adjust_address (operands[0], QImode, 0);
+ operands[2] = gen_lowpart (QImode, operands[2]);
}"
)
}
emit_insn (gen_movsi (reg, GEN_INT (val)));
- operands[1] = gen_rtx_SUBREG (HImode, reg, 0);
+ operands[1] = gen_lowpart (HImode, reg);
}
else if (!arm_arch4)
{
rtx reg = gen_reg_rtx (SImode);
emit_insn (gen_movsi (reg, operands[1]));
- operands[1] = gen_rtx_SUBREG (QImode, reg, 0);
+ operands[1] = gen_lowpart (QImode, reg);
}
if (GET_CODE (operands[0]) == MEM)
operands[1] = force_reg (QImode, operands[1]);
if (GET_CODE (operands[0]) != REG)
abort ();
- operands[0] = gen_rtx (SUBREG, SImode, operands[0], 0);
+ operands[0] = gen_rtx_SUBREG (SImode, operands[0], 0);
emit_insn (gen_movsi (operands[0], operands[1]));
DONE;
}