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2007-01-03 H.J. Lu <hongjiu.lu@intel.com>

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* config/tc-i386.c (swap_operands): Remove branches.
This commit is contained in:
H.J. Lu 2007-01-04 05:35:52 +00:00
parent 67cf15b768
commit b7c61d9abb
1 changed files with 20 additions and 29 deletions
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51
gas/config/tc-i386.c
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@ -2280,39 +2280,13 @@ swap_operands (void)
union i386_op temp_op; union i386_op temp_op;
unsigned int temp_type; unsigned int temp_type;
enum bfd_reloc_code_real temp_reloc; enum bfd_reloc_code_real temp_reloc;
int xchg1 = 0; int xchg1, xchg2;
int xchg2 = 0;
if (i.operands == 4) switch (i.operands)
/* There will be two exchanges in a 4 operand instruction.
First exchange is the done inside this block.(1st and 4rth operand)
The next exchange is done outside this block.(2nd and 3rd operand) */
{ {
xchg1 = 0; case 4:
xchg2 = 3;
temp_type = i.types[xchg2];
i.types[xchg2] = i.types[xchg1];
i.types[xchg1] = temp_type;
temp_op = i.op[xchg2];
i.op[xchg2] = i.op[xchg1];
i.op[xchg1] = temp_op;
temp_reloc = i.reloc[xchg2];
i.reloc[xchg2] = i.reloc[xchg1];
i.reloc[xchg1] = temp_reloc;
xchg1 = 1; xchg1 = 1;
xchg2 = 2; xchg2 = i.operands - 2;
}
if (i.operands == 2)
{
xchg1 = 0;
xchg2 = 1;
}
else if (i.operands == 3)
{
xchg1 = 0;
xchg2 = 2;
}
temp_type = i.types[xchg2]; temp_type = i.types[xchg2];
i.types[xchg2] = i.types[xchg1]; i.types[xchg2] = i.types[xchg1];
i.types[xchg1] = temp_type; i.types[xchg1] = temp_type;
@ -2322,6 +2296,23 @@ swap_operands (void)
temp_reloc = i.reloc[xchg2]; temp_reloc = i.reloc[xchg2];
i.reloc[xchg2] = i.reloc[xchg1]; i.reloc[xchg2] = i.reloc[xchg1];
i.reloc[xchg1] = temp_reloc; i.reloc[xchg1] = temp_reloc;
case 3:
case 2:
xchg1 = 0;
xchg2 = i.operands - 1;
temp_type = i.types[xchg2];
i.types[xchg2] = i.types[xchg1];
i.types[xchg1] = temp_type;
temp_op = i.op[xchg2];
i.op[xchg2] = i.op[xchg1];
i.op[xchg1] = temp_op;
temp_reloc = i.reloc[xchg2];
i.reloc[xchg2] = i.reloc[xchg1];
i.reloc[xchg1] = temp_reloc;
break;
default:
abort ();
}
if (i.mem_operands == 2) if (i.mem_operands == 2)
{ {