Commit Graph

131 Commits

Author SHA1 Message Date
Richard Henderson
de8301e542 tcg-sparc: Use UMULXHI instruction
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:27 -04:00
Richard Henderson
c470b663f7 tcg-sparc: Rename ADDX/SUBX insns
The pre-v9 ADDX/SUBX insns were renamed ADDC/SUBC for v9.
Standardizing on the v9 name makes things less confusing.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:27 -04:00
Richard Henderson
9d6a7a8542 tcg-sparc: Use ADDXC in setcond_i64
Similar to the ADDC tricks we use in setcond_i32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:27 -04:00
Richard Henderson
321b6c0585 tcg-sparc: Fix setcond_i32 uninitialized value
We failed to swap c1 and c2 correctly for NE c2 == 0.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:27 -04:00
Richard Henderson
90379ca84e tcg-sparc: Use ADDXC in addsub2_i64
On T4 and newer Sparc chips we have an add-with-carry insn
that takes its input from %xcc instead of %icc.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:27 -04:00
Richard Henderson
609ac1e164 tcg-sparc: Support addsub2_i64
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29 14:55:26 -04:00
Richard Henderson
ae18b28dd1 tcg-sparc: Make debug_frame const
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:56 -07:00
Richard Henderson
96d0ee7f09 tcg: Remove unreachable code in tcg_out_op and op_defs
The INDEX_op_call case has just been obsoleted; the mov and movi
cases have not been reachable for years.  Attempt to document this
both in each tcg_out_op switch, and via TCG_OPF_NOT_PRESENT.

Because of the TCG_OPF_NOT_PRESENT change, this must be done for
all targets in a single commit.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12 11:13:13 -07:00
Richard Henderson
4e9cf8409a tcg-sparc: Create tcg_out_call
Rename the existing tcg_out_calli to tcg_out_call_nodelay.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12 11:13:12 -07:00
Richard Henderson
abce5964be tcg-sparc: Define TCG_TARGET_INSN_UNIT_SIZE
And use tcg pointer differencing functions as appropriate.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12 10:03:04 -07:00
Richard Henderson
ebd0c614d7 tcg-sparc: Accept stores of zero
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
035b239826 tcg-sparc: Fix small 32-bit movi
We tested imm13 before discarding garbage high bits.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
35e2da1556 tcg-sparc: Fixup function argument types
Use TCGReg everywhere appropriate.  Use int32_t for all arguments
that may be registers or immediate constants.  Merge tcg_out_addi
into its only caller.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
b357f902bf tcg-sparc: Hoist common argument loads in tcg_out_op
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
98b90bab3f tcg-sparc: Don't handle mov/movi in tcg_out_op
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
425532d71d tcg-sparc: Tidy check_fit_* tests
Use sextract instead of raw bit shifting for the tests.  Introduce
a new check_fit_ptr macro to make it clear we're looking at pointers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
f4c166619e tcg-sparc: Implement muls2_i32
Using the 32-bit SMUL is a tad more efficient than
resorting to extending and using the 64-bit MULX.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
8b66eefe0d tcg-sparc: Use the RETURN instruction
Saves one insn per TB exit over JMPL+RESTORE.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
34b1a49cb1 tcg-sparc: Use 64-bit registers with sparcv8plus
Quite a lot of effort was spent composing and decomposing 64-bit
quantities in registers, when we should just create them and leave
them as one 64-bit register.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
a24fba935a tcg-sparc: Support trunc_shr_i32
Unlike a 64-bit shift op, allows the output to be in %l or %i registers
for sparcv8plus.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
9f44adc573 tcg-sparc: Remove most uses of TCG_TARGET_REG_BITS
Replace with SPARC64 define.  Soon even sparcv8plus will use
64-bit register as far as TCG is concerned.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:35 -07:00
Richard Henderson
4b304cfae1 tcg-sparc: Use the type parameter to tcg_target_const_match
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-18 16:57:36 -07:00
Richard Henderson
f6c6afc1d4 tcg: Add TCGType parameter to tcg_target_const_match
Most 64-bit targets need to be able to ignore the high bits
of a TCG_TYPE_I32 value.

Suggested-by: Stuart Brady <sdb@zubnet.me.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-18 16:57:36 -07:00
Richard Henderson
cab0a7ea00 tcg-sparc: Convert to new ldst opcodes
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
7ea5d7256d tcg-sparc: Convert to new ldst helpers
All of the helpers with the explicit big/little endian option
require the return address as a parameter.  Acquire this via
a trampoline.

Move the load of areg0 into the trampoline.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
a8b12c108c tcg-sparc: Tidy tcg_out_tlb_load interface
Pass address registers explicitly, rather than as indicies of args[].
It's two argument registers either way.  Use more TCGReg as appropriate.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
eef0d9e740 tcg-sparc: Use TCGMemOp within qemu_ldst routines
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
a9c7d27bd1 tcg-sparc: Improve tcg_out_movi
If bits 31:13 are zero, reduce the insn count by one.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
1d0a60681a tcg-sparc: Dont handle constant arguments to ext32 ops
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
5f9eb02555 tcg-sparc: Don't handle remainder
The generic fallback is exactly what we implemented.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
c8fc56cedd tcg-sparc: Use intptr_t as appropriate
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:26 -07:00
Richard Henderson
aad2f06a7f tcg-sparc: Tidy call+jump patterns
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:25 -07:00
Richard Henderson
d801a8f2ce tcg-sparc: Fix tlb read
We were computing the full address into %o0 and then not using it.
Adjust some of the computation to rely less on having to pull immediate
values into registers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:25 -07:00
Richard Henderson
e7bc9004e7 tcg-sparc: Fix ld64 for 32-bit mode
Since were not using an annulled branch, we need to put a nop
in the delay slot.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-17 11:13:25 -07:00
Richard Henderson
3cf246f0d4 tcg: Add tcg-be-null.h
This is a no-op backend data implementation, for those targets that
are not currently using the load/store optimization path.

This is prepatory to always requiring these functions in all backends.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-10-10 11:44:26 -07:00
Richard Henderson
e58eb53413 exec: Split softmmu_defs.h
The _cmmu helpers can be moved to exec-all.h.  The helpers that are
used from TCG will shortly need access to tcg_target_long so move
their declarations into tcg.h.

This requires minor include adjustments to all TCG backends.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Richard Henderson
a05b5b9be0 tcg: Change tcg_out_ld/st offset to intptr_t
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Richard Henderson
2ba7fae29e tcg: Change relocation offsets to intptr_t
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:29 -07:00
Richard Henderson
497a22eb87 tcg: Move the CIE and FDE header definitions to common code
These will necessarily be the same layout for all hosts.  This limits
the amount of boilerplate required to implement jit debug for a host.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-07-09 07:15:24 -07:00
Blue Swirl
07ca08bac8 tcg-sparc: fix build
Fix build breakage by 803d805bce:
make tcg_out_addsub2() always available.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-03 08:25:50 +00:00
Richard Henderson
803d805bce tcg-sparc: Always implement 32-bit multiword ops
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23 17:25:28 +00:00
Paolo Bonzini
022c62cbbc exec: move include files to include/exec/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:31 +01:00
Richard Henderson
203342d8dc tcg-sparc: Emit MOVR insns for setcond_i64 and movcond_64
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
ab1339b9b4 tcg-sparc: Emit BPr insns for brcond_i64
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
a115f3ea47 tcg-sparc: Drop use of Bicc in favor of BPcc
Now that we're always sparcv9, we can not bother using Bicc for
32-bit branches and BPcc for 64-bit branches and instead always
use BPcc.

New interfaces allow less direct use of tcg_out32 and raw numbers
inside the qemu_ld/st routines.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
fd84ea2391 tcg-sparc: Optimize setcond2 equality compare with 0.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
89269f6cea tcg-sparc: Use Z constraint for %g0
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
4ec28e255f tcg-sparc: Fix add2/sub2
We must care not to clobber the high parts before we consume them.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
7d458a7567 tcg-sparc: Fix setcond
The set of comparisons that can immediately use the carry are LTU/GEU,
not LTU/LEU.  Don't swap operands when we need a temp register; the
register may already be in use from setcond2.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00
Richard Henderson
a7a49843d7 tcg-sparc: Fix qemu_st for 32-bit
The datalo variable is still live in the miss path.  Use another
when reconstructing the full data value.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-13 10:39:53 +00:00