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* config/tc-mips.c (insn_insert_operand): New function.
	(macro_build, mips16_macro_build): Put null character check
	in the for loop and convert continues to breaks.  Use operand
	structures to handle constant operands.
This commit is contained in:
Richard Sandiford 2013-07-14 13:37:51 +00:00
parent c3c0747817
commit e077a1c8de
2 changed files with 53 additions and 238 deletions
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7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2013-07-14 Richard Sandiford <rdsandiford@googlemail.com>
* config/tc-mips.c (insn_insert_operand): New function.
(macro_build, mips16_macro_build): Put null character check
in the for loop and convert continues to breaks. Use operand
structures to handle constant operands.
2013-07-14 Richard Sandiford <rdsandiford@googlemail.com>
* config/tc-mips.c (validate_mips_insn): Move further up file.

284
gas/config/tc-mips.c
View File

@ -2044,6 +2044,15 @@ create_insn (struct mips_cl_insn *insn, const struct mips_opcode *mo)
insn->cleared_p = 0;
}
/* Install UVAL as the value of OPERAND in INSN. */
static inline void
insn_insert_operand (struct mips_cl_insn *insn,
const struct mips_operand *operand, unsigned int uval)
{
insn->insn_opcode = mips_insert_operand (operand, insn->insn_opcode, uval);
}
/* Record the current MIPS16/microMIPS mode in now_seg. */
static void
@ -5401,9 +5410,11 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
const struct mips_opcode *mo = NULL;
bfd_reloc_code_real_type r[3];
const struct mips_opcode *amo;
const struct mips_operand *operand;
struct hash_control *hash;
struct mips_cl_insn insn;
va_list args;
unsigned int uval;
va_start (args, fmt);
@ -5453,152 +5464,15 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
gas_assert (mo);
create_insn (&insn, mo);
for (;;)
for (; *fmt; ++fmt)
{
switch (*fmt++)
switch (*fmt)
{
case '\0':
break;
case ',':
case '(':
case ')':
continue;
case '+':
switch (*fmt++)
{
case 'A':
case 'E':
INSERT_OPERAND (mips_opts.micromips,
EXTLSB, insn, va_arg (args, int));
continue;
case 'B':
case 'F':
/* Note that in the macro case, these arguments are already
in MSB form. (When handling the instruction in the
non-macro case, these arguments are sizes from which
MSB values must be calculated.) */
INSERT_OPERAND (mips_opts.micromips,
INSMSB, insn, va_arg (args, int));
continue;
case 'J':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, CODE10, insn, va_arg (args, int));
continue;
case 'C':
case 'G':
case 'H':
/* Note that in the macro case, these arguments are already
in MSBD form. (When handling the instruction in the
non-macro case, these arguments are sizes from which
MSBD values must be calculated.) */
INSERT_OPERAND (mips_opts.micromips,
EXTMSBD, insn, va_arg (args, int));
continue;
case 'Q':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, SEQI, insn, va_arg (args, int));
continue;
case 'j':
INSERT_OPERAND (mips_opts.micromips, EVAOFFSET, insn, va_arg (args, int));
continue;
default:
abort ();
}
continue;
case '2':
INSERT_OPERAND (mips_opts.micromips, BP, insn, va_arg (args, int));
continue;
case 'n':
gas_assert (mips_opts.micromips);
case 't':
case 'w':
case 'E':
INSERT_OPERAND (mips_opts.micromips, RT, insn, va_arg (args, int));
continue;
case 'c':
INSERT_OPERAND (mips_opts.micromips, CODE, insn, va_arg (args, int));
continue;
case 'W':
gas_assert (!mips_opts.micromips);
case 'T':
INSERT_OPERAND (mips_opts.micromips, FT, insn, va_arg (args, int));
continue;
case 'G':
if (mips_opts.micromips)
INSERT_OPERAND (1, RS, insn, va_arg (args, int));
else
INSERT_OPERAND (0, RD, insn, va_arg (args, int));
continue;
case 'K':
gas_assert (!mips_opts.micromips);
case 'd':
INSERT_OPERAND (mips_opts.micromips, RD, insn, va_arg (args, int));
continue;
case 'U':
gas_assert (!mips_opts.micromips);
{
int tmp = va_arg (args, int);
INSERT_OPERAND (0, RT, insn, tmp);
INSERT_OPERAND (0, RD, insn, tmp);
}
continue;
case 'V':
case 'S':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, FS, insn, va_arg (args, int));
continue;
case 'z':
continue;
case '<':
INSERT_OPERAND (mips_opts.micromips,
SHAMT, insn, va_arg (args, int));
continue;
case 'D':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, FD, insn, va_arg (args, int));
continue;
case 'B':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, CODE20, insn, va_arg (args, int));
continue;
case 'J':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, CODE19, insn, va_arg (args, int));
continue;
case 'q':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, CODE2, insn, va_arg (args, int));
continue;
case 'b':
case 's':
case 'r':
case 'v':
INSERT_OPERAND (mips_opts.micromips, RS, insn, va_arg (args, int));
continue;
break;
case 'i':
case 'j':
@ -5608,11 +5482,11 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
|| *r == BFD_RELOC_HI16_S
|| *r == BFD_RELOC_LO16
|| *r == BFD_RELOC_MIPS_GOT_OFST);
continue;
break;
case 'o':
macro_read_relocs (&args, r);
continue;
break;
case 'u':
macro_read_relocs (&args, r);
@ -5625,7 +5499,7 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
|| *r == BFD_RELOC_GPREL16
|| *r == BFD_RELOC_MIPS_GOT_HI16
|| *r == BFD_RELOC_MIPS_CALL_HI16))));
continue;
break;
case 'p':
gas_assert (ep != NULL);
@ -5654,73 +5528,29 @@ macro_build (expressionS *ep, const char *name, const char *fmt, ...)
}
else
*r = BFD_RELOC_16_PCREL_S2;
continue;
break;
case 'a':
gas_assert (ep != NULL);
*r = BFD_RELOC_MIPS_JMP;
continue;
case 'C':
gas_assert (!mips_opts.micromips);
INSERT_OPERAND (0, COPZ, insn, va_arg (args, int));
continue;
case 'k':
INSERT_OPERAND (mips_opts.micromips,
CACHE, insn, va_arg (args, int));
continue;
case '|':
gas_assert (mips_opts.micromips);
INSERT_OPERAND (1, TRAP, insn, va_arg (args, int));
continue;
case '.':
gas_assert (mips_opts.micromips);
INSERT_OPERAND (1, OFFSET10, insn, va_arg (args, int));
continue;
case '\\':
INSERT_OPERAND (mips_opts.micromips,
3BITPOS, insn, va_arg (args, int));
continue;
case '~':
INSERT_OPERAND (mips_opts.micromips,
OFFSET12, insn, va_arg (args, int));
continue;
case 'N':
gas_assert (mips_opts.micromips);
INSERT_OPERAND (1, BCC, insn, va_arg (args, int));
continue;
case 'm': /* Opcode extension character. */
gas_assert (mips_opts.micromips);
switch (*fmt++)
{
case 'j':
INSERT_OPERAND (1, MJ, insn, va_arg (args, int));
break;
case 'p':
INSERT_OPERAND (1, MP, insn, va_arg (args, int));
break;
case 'F':
INSERT_OPERAND (1, IMMF, insn, va_arg (args, int));
break;
default:
abort ();
}
continue;
break;
default:
abort ();
operand = (mips_opts.micromips
? decode_micromips_operand (fmt)
: decode_mips_operand (fmt));
if (!operand)
abort ();
uval = va_arg (args, int);
if (operand->type == OP_CLO_CLZ_DEST)
uval |= (uval << 5);
insn_insert_operand (&insn, operand, uval);
if (*fmt == '+' || *fmt == 'm')
++fmt;
break;
}
break;
}
va_end (args);
gas_assert (*r == BFD_RELOC_UNUSED ? ep == NULL : ep != NULL);
@ -5734,6 +5564,7 @@ mips16_macro_build (expressionS *ep, const char *name, const char *fmt,
{
struct mips_opcode *mo;
struct mips_cl_insn insn;
const struct mips_operand *operand;
bfd_reloc_code_real_type r[3]
= {BFD_RELOC_UNUSED, BFD_RELOC_UNUSED, BFD_RELOC_UNUSED};
@ -5749,48 +5580,23 @@ mips16_macro_build (expressionS *ep, const char *name, const char *fmt,
}
create_insn (&insn, mo);
for (;;)
for (; *fmt; ++fmt)
{
int c;
c = *fmt++;
c = *fmt;
switch (c)
{
case '\0':
break;
case ',':
case '(':
case ')':
continue;
case 'y':
case 'w':
MIPS16_INSERT_OPERAND (RY, insn, va_arg (*args, int));
continue;
case 'x':
case 'v':
MIPS16_INSERT_OPERAND (RX, insn, va_arg (*args, int));
continue;
case 'z':
MIPS16_INSERT_OPERAND (RZ, insn, va_arg (*args, int));
continue;
case 'Z':
MIPS16_INSERT_OPERAND (MOVE32Z, insn, va_arg (*args, int));
continue;
break;
case '0':
case 'S':
case 'P':
case 'R':
continue;
case 'X':
MIPS16_INSERT_OPERAND (REGR32, insn, va_arg (*args, int));
continue;
break;
case '<':
case '>':
@ -5822,14 +5628,16 @@ mips16_macro_build (expressionS *ep, const char *name, const char *fmt,
*r = BFD_RELOC_UNUSED;
}
}
continue;
break;
case '6':
MIPS16_INSERT_OPERAND (IMM6, insn, va_arg (*args, int));
continue;
default:
operand = decode_mips16_operand (c, FALSE);
if (!operand)
abort ();
insn_insert_operand (&insn, operand, va_arg (args, int));
break;
}
break;
}
gas_assert (*r == BFD_RELOC_UNUSED ? ep == NULL : ep != NULL);