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* config/tc-mips.c: Add define for $zero register. 

(md_begin): Add $zero as alias name for $0.
	(insn_uses_reg): Use ZERO define.
	(mips_ip): Add $zero as alias name for $0.
	(mips16_ip): Likewise.
	(s_cplocal): Demand empty rest of input line.
	(tc_get_register): Likewise. Add support for $kt0, kt1 register
	names. Use ZERO define. Fix input_line_pointer progress.
This commit is contained in:
Thiemo Seufer 2002-06-07 22:54:47 +00:00
parent 577d8c4b5a
commit 85b5171940
2 changed files with 67 additions and 11 deletions
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11
gas/ChangeLog
View File

@ -1,3 +1,14 @@
2002-06-08 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
* config/tc-mips.c: Add define for $zero register.
(md_begin): Add $zero as alias name for $0.
(insn_uses_reg): Use ZERO define.
(mips_ip): Add $zero as alias name for $0.
(mips16_ip): Likewise.
(s_cplocal): Demand empty rest of input line.
(tc_get_register): Likewise. Add support for $kt0, kt1 register
names. Use ZERO define. Fix input_line_pointer progress.
2002-06-07 Alan Modra <amodra@bigpond.net.au>
* symbols.c: Replace CONST by const throughout.

67
gas/config/tc-mips.c
View File

@ -82,6 +82,7 @@ static int mips_output_flavor () { return OUTPUT_FLAVOR; }
static char *mips_regmask_frag;
#endif
#define ZERO 0
#define AT 1
#define TREG 24
#define PIC_CALL_REG 25
@ -1121,6 +1122,8 @@ md_begin ()
&zero_address_frag));
symbol_table_insert (symbol_new ("$kt1", reg_section, KT1,
&zero_address_frag));
symbol_table_insert (symbol_new ("$zero", reg_section, ZERO,
&zero_address_frag));
symbol_table_insert (symbol_new ("$pc", reg_section, -1,
&zero_address_frag));
@ -1304,8 +1307,8 @@ insn_uses_reg (ip, reg, class)
class = MIPS_GR_REG;
}
/* Don't report on general register 0, since it never changes. */
if (class == MIPS_GR_REG && reg == 0)
/* Don't report on general register ZERO, since it never changes. */
if (class == MIPS_GR_REG && reg == ZERO)
return 0;
if (class == MIPS_FP_REG)
@ -8001,6 +8004,11 @@ mips_ip (str, ip)
s += 4;
regno = KT1;
}
else if (s[1] == 'z' && s[2] == 'e' && s[3] == 'r' && s[4] == 'o')
{
s += 5;
regno = ZERO;
}
else if (itbl_have_entries)
{
char *p, *n;
@ -8959,6 +8967,11 @@ mips16_ip (str, ip)
s += 4;
regno = KT1;
}
else if (s[1] == 'z' && s[2] == 'e' && s[3] == 'r' && s[4] == 'o')
{
s += 5;
regno = ZERO;
}
else
break;
}
@ -11954,6 +11967,7 @@ s_cplocal (ignore)
}
mips_gp_register = tc_get_register (0);
demand_empty_rest_of_line ();
}
/* Handle the .cprestore pseudo-op. This stores $gp into a given
@ -12212,7 +12226,7 @@ tc_get_register (frame)
if (*input_line_pointer++ != '$')
{
as_warn (_("expected `$'"));
reg = 0;
reg = ZERO;
}
else if (ISDIGIT (*input_line_pointer))
{
@ -12220,27 +12234,58 @@ tc_get_register (frame)
if (reg < 0 || reg >= 32)
{
as_warn (_("Bad register number"));
reg = 0;
reg = ZERO;
}
}
else
{
if (strncmp (input_line_pointer, "ra", 2) == 0)
reg = RA;
{
reg = RA;
input_line_pointer += 2;
}
else if (strncmp (input_line_pointer, "fp", 2) == 0)
reg = FP;
{
reg = FP;
input_line_pointer += 2;
}
else if (strncmp (input_line_pointer, "sp", 2) == 0)
reg = SP;
{
reg = SP;
input_line_pointer += 2;
}
else if (strncmp (input_line_pointer, "gp", 2) == 0)
reg = GP;
{
reg = GP;
input_line_pointer += 2;
}
else if (strncmp (input_line_pointer, "at", 2) == 0)
reg = AT;
{
reg = AT;
input_line_pointer += 2;
}
else if (strncmp (input_line_pointer, "kt0", 3) == 0)
{
reg = KT0;
input_line_pointer += 3;
}
else if (strncmp (input_line_pointer, "kt1", 3) == 0)
{
reg = KT1;
input_line_pointer += 3;
}
else if (strncmp (input_line_pointer, "zero", 4) == 0)
{
reg = ZERO;
input_line_pointer += 4;
}
else
{
as_warn (_("Unrecognized register name"));
reg = 0;
reg = ZERO;
while (ISALNUM(*input_line_pointer))
input_line_pointer++;
}
input_line_pointer += 2;
}
if (frame)
{