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* config/tc-mipc.c (ISA_HAS_ODD_SINGLE_FPR): New define.

Browse Source 
(mips_oddfpreg_ok): New function.
	(mips_ip): Use it.
-------------------------------------------------------------------
This commit is contained in:
Thiemo Seufer 2006-05-19 13:03:06 +00:00
parent 707bfff6e6
commit 7455baf866
2 changed files with 54 additions and 12 deletions
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7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2006-05-19 Thiemo Seufer <ths@mips.com>
Nigel Stephens <nigel@mips.com>
* config/tc-mipc.c (ISA_HAS_ODD_SINGLE_FPR): New define.
(mips_oddfpreg_ok): New function.
(mips_ip): Use it.
2006-05-19 Thiemo Seufer <ths@mips.com>
David Ung <davidu@mips.com>

59
gas/config/tc-mips.c
View File

@ -326,6 +326,12 @@ static int mips_32bitmode = 0;
|| (ISA) == ISA_MIPS64R2 \
|| mips_opts.ase_smartmips)
/* Return true if ISA supports single-precision floats in odd registers. */
#define ISA_HAS_ODD_SINGLE_FPR(ISA) \
((ISA) == ISA_MIPS32 \
|| (ISA) == ISA_MIPS32R2 \
|| (ISA) == ISA_MIPS64 \
|| (ISA) == ISA_MIPS64R2)
#define HAVE_32BIT_GPRS \
(mips_opts.gp32 || ! ISA_HAS_64BIT_REGS (mips_opts.isa))
@ -8209,6 +8215,46 @@ static const struct mips_immed mips_immed[] = {
{ 0,0,0,0 }
};
/* Check whether an odd floating-point register is allowed. */
static int
mips_oddfpreg_ok (const struct mips_opcode *insn, int argnum)
{
const char *s = insn->name;
if (insn->pinfo == INSN_MACRO)
/* Let a macro pass, we'll catch it later when it is expanded. */
return 1;
if (ISA_HAS_ODD_SINGLE_FPR (mips_opts.isa))
{
/* Allow odd registers for single-precision ops. */
switch (insn->pinfo & (FP_S | FP_D))
{
case FP_S:
case 0:
return 1; /* both single precision - ok */
case FP_D:
return 0; /* both double precision - fail */
default:
break;
}
/* Cvt.w.x and cvt.x.w allow an odd register for a 'w' or 's' operand. */
s = strchr (insn->name, '.');
if (argnum == 2)
s = s != NULL ? strchr (s + 1, '.') : NULL;
return (s != NULL && (s[1] == 'w' || s[1] == 's'));
}
/* Single-precision coprocessor loads and moves are OK too. */
if ((insn->pinfo & FP_S)
&& (insn->pinfo & (INSN_COPROC_MEMORY_DELAY | INSN_STORE_MEMORY
| INSN_LOAD_COPROC_DELAY | INSN_COPROC_MOVE_DELAY)))
return 1;
return 0;
}
/* This routine assembles an instruction into its binary format. As a
side effect, it sets one of the global variables imm_reloc or
offset_reloc to the type of relocation to do if one of the operands
@ -9074,18 +9120,7 @@ do_msbd:
{
if ((regno & 1) != 0
&& HAVE_32BIT_FPRS
&& ! (strcmp (str, "mtc1") == 0
|| strcmp (str, "mfc1") == 0
|| strcmp (str, "lwc1") == 0
|| strcmp (str, "swc1") == 0
|| strcmp (str, "l.s") == 0
|| strcmp (str, "s.s") == 0
|| strcmp (str, "mftc1") == 0
|| strcmp (str, "mfthc1") == 0
|| strcmp (str, "cftc1") == 0
|| strcmp (str, "mttc1") == 0
|| strcmp (str, "mtthc1") == 0
|| strcmp (str, "cttc1") == 0))
&& ! mips_oddfpreg_ok (ip->insn_mo, argnum))
as_warn (_("Float register should be even, was %d"),
regno);