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gas/arc: Limit special handling of t/nt flag to ARCv2

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In a later commit I'll be adding a new version of the ".nt" flag for an
ARC700 extension (NPS400) which does not require this same special
handling.

In this commit I have restricted the special flag handling to only apply
if we are assembling for ARCv2.  This is a restructuring commit, and
there should be no user visible changes after this commit.

gas/ChangeLog:

	* config/tc-arc.c (assemble_insn): Only handle ".t" and ".nt"
	specially for ARCv2.
This commit is contained in:
Rinat Zelig 2017-03-16 10:05:22 +00:00 committed by Andrew Burgess
parent e189bfe660
commit 2c52e2e8c9
2 changed files with 18 additions and 5 deletions
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5
gas/ChangeLog
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@ -1,3 +1,8 @@
2017-03-16 Rinat Zelig <rinat@mellanox.com>
* config/tc-arc.c (assemble_insn): Only handle ".t" and ".nt"
specially for ARCv2.
2017-03-14 Kito Cheng <kito.cheng@gmail.com>
* config/tc-riscv.c (validate_riscv_insn): Add 'o' RVC immediate

18
gas/config/tc-arc.c
View File

@ -4010,11 +4010,19 @@ assemble_insn (const struct arc_opcode *opcode,
if (!strcmp (flg_operand->name, "d"))
has_delay_slot = TRUE;
/* There is an exceptional case when we cannot insert a flag
just as it is. The .T flag must be handled in relation with
the relative address. */
if (!strcmp (flg_operand->name, "t")
|| !strcmp (flg_operand->name, "nt"))
/* There is an exceptional case when we cannot insert a flag just as
it is. On ARCv2 the '.t' and '.nt' flags must be handled in
relation with the relative address. Unfortunately, some of the
ARC700 extensions (NPS400) also have a '.nt' flag that should be
handled in the normal way.
Flag operands don't have an architecture field, so we can't
directly validate that FLAG_OPERAND is valid for the current
architecture, what we do instead is just validate that we're
assembling for an ARCv2 architecture. */
if ((selected_cpu.flags & ARC_OPCODE_ARCV2)
&& (!strcmp (flg_operand->name, "t")
|| !strcmp (flg_operand->name, "nt")))
{
unsigned bitYoperand = 0;
/* FIXME! move selection bbit/brcc in arc-opc.c. */