Commit Graph

206 Commits

Author SHA1 Message Date
Richard Henderson 26a75d12d3 tcg: Move MAX_CODE_GEN_BUFFER_SIZE to tcg-target.h
Remove the ifdef ladder and move each define into the
appropriate header file.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-11 09:27:08 -07:00
Richard Henderson a4fbbd779a tcg: Change parameters for tcg_target_const_match
Change the return value to bool, because that's what is should
have been from the start.  Pass the ct mask instead of the whole
TCGArgConstraint, as that's the only part that's relevant.

Change the value argument to int64_t.  We will need the extra
width for 32-bit hosts wanting to match vector constants.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-04 11:50:11 -07:00
Yasuo Kuwahara 26b1248f66 tcg/aarch64: Fix tcg_out_rotl
The last argument of tcg_out_extr() must be in the range 0-31 if ext==0.
Before the fix, when m==0 it becomes 32 and it crashes with an Illegal
instruction on Apple Silicon.  After the fix, it will be 0.  If m is in
the range 1-31, it is the same as before.

Signed-off-by: Yasuo Kuwahara <kwhr00@gmail.com>
Message-Id: <CAHfJ0vSXnmnTLmT0kR=a8ACRdw_UsLYOhStzUzgVEHoH8U-7sA@mail.gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-26 15:33:59 -07:00
Miroslav Rezanina 5e8892db93 tcg: Fix prototypes for tcg_out_vec_op and tcg_out_op
There are two different versions of prototype for tcg_out_op and
tcg_out_vec_op functions:

1) using const TCGArg *args and const int *const_args arguments
2) using const TCGArg args[TCG_MAX_OP_ARGS] and const int
   const_args[TCG_MAX_OP_ARGS] aguments.

This duality causes warnings on GCC 11 and prevents build using
--enable-werror.  As second version provides more information,
unify functions prototypes to this variant.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Message-Id: <20210312121418.139093-1-mrezanin@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-03-17 09:04:45 -06:00
Richard Henderson d81bad24df tcg/aarch64: Fix generation of "scalar" vector operations
For some vector operations, "1D" is not a valid type, and there
are separate instructions for the 64-bit scalar operation.

Tested-by: Stefan Weil <sw@weilnetz.de>
Buglink: https://bugs.launchpad.net/qemu/+bug/1916112
Fixes: 14e4c1e235 ("tcg/aarch64: Add vector operations")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-03-06 11:45:21 -08:00
Richard Henderson 6c2c7772f6 tcg/aarch64: Fix I3617_CMLE0
Fix a typo in the encodeing of the cmle (zero) instruction.

Fixes: 14e4c1e235 ("tcg/aarch64: Add vector operations")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-03-06 11:45:21 -08:00
Richard Henderson 707b45a247 tcg/aarch64: Fix constant subtraction in tcg_out_addsub2
An hppa guest executing

0x000000000000e05c:  ldil L%10000,r4
0x000000000000e060:  ldo 0(r4),r4
0x000000000000e064:  sub r3,r4,sp

produces

 ---- 000000000000e064 000000000000e068
 sub2_i32 tmp0,tmp4,r3,$0x1,$0x10000,$0x0

after folding and constant propagation.  Then we hit

tcg-target.c.inc:640: tcg_out_insn_3401: Assertion `aimm <= 0xfff' failed.

because aimm is in fact -16, but unsigned.

The ((bl < 0) ^ sub) condition which negates bl is incorrect and will
always lead to this abort.  If the constant is positive, sub will make
it negative; if the constant is negative, sub will keep it negative.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-03-06 11:45:21 -08:00
Richard Henderson 2dfa2f1871 tcg/aarch64: Do not convert TCGArg to temps that are not temps
Fixes INDEX_op_rotli_vec for aarch64 host, where the 3rd
argument is an integer, not a temporary, which now tickles
an assert added in e89b28a635.

Previously, the value computed into v2 would be garbage for
rotli_vec, but as the value was unused it caused no harm.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-05 10:24:14 -10:00
Richard Henderson 0c823e5968 tcg: Remove TCG_TARGET_CON_SET_H
All backends have now been converted to tcg-target-con-set.h,
so we can remove the fallback code.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02 12:12:43 -10:00
Richard Henderson 39e7522b4a tcg/aarch64: Split out constraint sets to tcg-target-con-set.h
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02 12:12:43 -10:00
Richard Henderson 8c07f3262e tcg: Remove TCG_TARGET_CON_STR_H
All backends have now been converted to tcg-target-con-str.h,
so we can remove the fallback code.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02 12:12:43 -10:00
Richard Henderson abc730e18e tcg/aarch64: Split out target constraints to tcg-target-con-str.h
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02 12:12:31 -10:00
Richard Henderson 10061ffe56 tcg/aarch64: Use tcg_constant_vec with tcg vec expanders
Improve rotrv_vec to reduce "t1 = -v2, t2 = t1 + c" to
"t1 = -v2, t2 = c - v2".  This avoids a serial dependency
between t1 and t2.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-13 08:39:08 -10:00
Richard Henderson c58f4c97b2 tcg: Remove movi and dupi opcodes
These are now completely covered by mov from a
TYPE_CONST temporary.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-13 08:39:08 -10:00
Richard Henderson 4e18617555 tcg: Increase tcg_out_dupi_vec immediate to int64_t
While we don't store more than tcg_target_long in TCGTemp,
we shouldn't be limited to that for code generation.  We will
be able to use this for INDEX_op_dup2_vec with 2 constants.

Also pass along the minimal vece that may be said to apply
to the constant.  This allows some simplification in the
various backends.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-13 08:39:08 -10:00
Richard Henderson 0a6a8bc8eb tcg: Use tcg_out_dupi_vec from temp_load
Having dupi pass though movi is confusing and arguably wrong.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-13 08:39:08 -10:00
Richard Henderson e5e2e4c739 tcg: Constify TCGLabelQemuLdst.raddr
Now that all native tcg hosts support splitwx,
make this pointer const.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:42 -10:00
Richard Henderson c8bc1168ad tcg: Constify tcg_code_gen_epilogue
Now that all native tcg hosts support splitwx,
make this pointer const.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:42 -10:00
Richard Henderson de2fac62d2 tcg: Remove TCG_TARGET_SUPPORT_MIRROR
Now that all native tcg hosts support splitwx, remove the define.
Replace the one use with a test for CONFIG_TCG_INTERPRETER.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:42 -10:00
Richard Henderson ffba3eb34b tcg/aarch64: Support split-wx code generation
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:42 -10:00
Richard Henderson f716bab3a9 tcg/aarch64: Use B not BL for tcg_out_goto_long
A typo generated a branch-and-link insn instead of plain branch.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:42 -10:00
Richard Henderson a35b3e1415 tcg: Add --accel tcg,split-wx property
Plumb the value through to alloc_code_gen_buffer.  This is not
supported by any os or tcg backend, so for now enabling it will
result in an error.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 1acbad0f27 tcg: Adjust tb_target_set_jmp_target for split-wx
Pass both rx and rw addresses to tb_target_set_jmp_target.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 755bf9e514 tcg: Adjust tcg_register_jit for const
We must change all targets at once, since all must match
the declaration in tcg.c.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 2be7d76b15 tcg: Adjust tcg_out_call for const
We must change all targets at once, since all must match
the declaration in tcg.c.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson ffd0e50736 tcg: Adjust TCGLabel for const
Change TCGLabel.u.value_ptr to const, and initialize it with
tcg_splitwx_to_rx.  Propagate const through tcg/host/ only
as far as needed to avoid errors from the value_ptr change.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 8b5c2b6260 tcg: Move tcg epilogue pointer out of TCGContext
This value is constant across all thread-local copies of TCGContext,
so we might as well move it out of thread-local storage.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 1da8de39a3 util: Enhance flush_icache_range with separate data pointer
We are shortly going to have a split rw/rx jit buffer.  Depending
on the host, we need to flush the dcache at the rw data pointer and
flush the icache at the rx code pointer.

For now, the two passed pointers are identical, so there is no
effective change in behaviour.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:41 -10:00
Richard Henderson 07ce0b0530 tcg: Introduce INDEX_op_qemu_st8_i32
Enable this on i386 to restrict the set of input registers
for an 8-bit store, as required by the architecture.  This
removes the last use of scratch registers for user-only mode.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07 05:09:06 -10:00
Richard Henderson 084cfca143 util: Extract flush_icache_range to cacheflush.c
This has been a tcg-specific function, but is also in use
by hardware accelerators via physmem.c.  This can cause
link errors when tcg is disabled.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214140314.18544-3-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-02 21:03:36 +01:00
Richard Henderson cae5d53b9e tcg: Remove TCG_TARGET_HAS_cmp_vec
The cmp_vec opcode is mandatory; this symbol is unused.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 74a117906b tcg: Remove TCG_CT_REG
This wasn't actually used for anything, really.  All variable
operands must accept registers, and which are indicated by the
set in TCGArgConstraint.regs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Richard Henderson 9be0d08019 tcg: Drop union from TCGArgConstraint
The union is unused; let "regs" appear in the main structure
without the "u.regs" wrapping.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-10-08 05:57:32 -05:00
Stefan Hajnoczi d73415a315 qemu/atomic.h: rename atomic_ to qatomic_
clang's C11 atomic_fetch_*() functions only take a C11 atomic type
pointer argument. QEMU uses direct types (int, etc) and this causes a
compiler error when a QEMU code calls these functions in a source file
that also included <stdatomic.h> via a system header file:

  $ CC=clang CXX=clang++ ./configure ... && make
  ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid)

Avoid using atomic_*() names in QEMU's atomic.h since that namespace is
used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h
and <stdatomic.h> can co-exist. I checked /usr/include on my machine and
searched GitHub for existing "qatomic_" users but there seem to be none.

This patch was generated using:

  $ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \
    sort -u >/tmp/changed_identifiers
  $ for identifier in $(</tmp/changed_identifiers); do
        sed -i "s%\<$identifier\>%q$identifier%g" \
            $(git grep -I -l "\<$identifier\>")
    done

I manually fixed line-wrap issues and misaligned rST tables.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
2020-09-23 16:07:44 +01:00
Paolo Bonzini 139c1837db meson: rename included C source files to .c.inc
With Makefiles that have automatically generated dependencies, you
generated includes are set as dependencies of the Makefile, so that they
are built before everything else and they are available when first
building the .c files.

Alternatively you can use a fine-grained dependency, e.g.

        target/arm/translate.o: target/arm/decode-neon-shared.inc.c

With Meson you have only one choice and it is a third option, namely
"build at the beginning of the corresponding target"; the way you
express it is to list the includes in the sources of that target.

The problem is that Meson decides if something is a source vs. a
generated include by looking at the extension: '.c', '.cc', '.m', '.C'
are sources, while everything else is considered an include---including
'.inc.c'.

Use '.c.inc' to avoid this, as it is consistent with our other convention
of using '.rst.inc' for included reStructuredText files.  The editorconfig
file is adjusted.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:18:30 -04:00
Richard Henderson 7cff8988fa tcg/aarch64: Implement INDEX_op_rotl{i,v}_vec
For immediate rotate , we can implement this in two instructions,
using SLI.  For variable rotate, the oddness of aarch64 right-shift-
as-negative-left-shift means a backend-specific expansion works best.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-02 08:42:37 -07:00
Richard Henderson 23850a74af tcg: Implement gvec support for rotate by scalar
No host backend support yet, but the interfaces for rotls
are in place.  Only implement left-rotate for now, as the
only known use of vector rotate by scalar is s390x, so any
right-rotate would be unused and untestable.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-02 08:42:37 -07:00
Richard Henderson 5d0ceda902 tcg: Implement gvec support for rotate by vector
No host backend support yet, but the interfaces for rotlv
and rotrv are in place.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Drop the generic expansion from rot to shift; we can do better
    for each backend, and then this code becomes unused.
2020-06-02 08:42:37 -07:00
Richard Henderson b0f7e7444c tcg: Implement gvec support for rotate by immediate
No host backend support yet, but the interfaces for rotli
are in place.  Canonicalize immediate rotate to the left,
based on a survey of architectures, but provide both left
and right shift interfaces to the translators.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-02 08:42:37 -07:00
Philippe Mathieu-Daudé 2b434dd127 tcg: Search includes in the parent source directory
All the *.inc.c files included by tcg/$TARGET/tcg-target.inc.c
are in tcg/, their parent directory. To simplify the preprocessor
search path, include the relative parent path: '..'.

Patch created mechanically by running:

  $ for x in tcg-pool.inc.c tcg-ldst.inc.c; do \
    sed -i "s,#include \"$x\",#include \"../$x\"," \
      $(git grep -l "#include \"$x\""); \
    done

Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200101112303.20724-3-philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-15 15:13:10 -10:00
Peter Maydell 97105f2921 tcg/aarch64/tcg-target.opc.h: Add copyright/license
Add the copyright/license boilerplate for target/aarch64/tcg-target.opc.h.
This file has only had two commits: 14e4c1e235
and 79525dfd08, both by the same Linaro engineer.
The license is GPL-2-or-later, since that's what the
rest of tcg/aarch64 uses.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20191025155848.17362-2-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-11-11 15:11:21 +01:00
Tony Nguyen 14776ab5a1 tcg: TCGMemOp is now accelerator independent MemOp
Preparation for collapsing the two byte swaps, adjust_endianness and
handle_bswap, along the I/O path.

Target dependant attributes are conditionalized upon NEED_CPU_H.

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <81d9cd7d7f5aaadfa772d6c48ecee834e9cf7882.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-09-03 08:30:38 -07:00
Richard Henderson 1789d4274b tcg/aarch64: Fix output of extract2 opcodes
This patch fixes two problems:
(1) The inputs to the EXTR insn were reversed,
(2) The input constraints use rZ, which means that we need to use
    the REG0 macro in order to supply XZR for a constant 0 input.

Fixes: 464c2969d5
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-07-14 12:19:00 +02:00
Richard Henderson 65b23204d6 tcg/aarch64: Use LDP to load tlb mask+table
This changes the code generation for the tlb from e.g.

	ldur     x0, [x19, #0xffffffffffffffe0]
	ldur     x1, [x19, #0xffffffffffffffe8]
	and      x0, x0, x20, lsr #8
	add      x1, x1, x0
	ldr      x0, [x1]
	ldr      x1, [x1, #0x18]

to

	ldp      x0, x1, [x19, #-0x20]
	and      x0, x0, x20, lsr #8
	add      x1, x1, x0
	ldr      x0, [x1]
	ldr      x1, [x1, #0x18]

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson 269bd5d8f6 cpu: Move the softmmu tlb to CPUNegativeOffsetState
We have for some time had code within the tcg backends to
handle large positive offsets from env.  This move makes
sure that need not happen.  Indeed, we are able to assert
at build time that simple offsets suffice for all hosts.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson a40ec84ee2 tcg: Create struct CPUTLB
Move all softmmu tlb data into this structure.  Arrange the
members so that we are able to place mask+table together and
at a smaller absolute offset from ENV.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
Richard Henderson 9e27f58b99 tcg/aarch64: Allow immediates for vector ORR and BIC
The allows immediates to be used for ORR and BIC,
as well as the trivial inversions, ORC and AND.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson 02f3a5b474 tcg/aarch64: Build vector immediates with two insns
Use MOVI+ORR or MVNI+BIC in order to build some vector constants,
as opposed to dropping them to the constant pool.  This includes
all 16-bit constants and a similar set of 32-bit constants.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson 7e308e003e tcg/aarch64: Use MVNI in tcg_out_dupi_vec
The compliment of a subset of immediates can be computed
with a single instruction.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson 984fdcee34 tcg/aarch64: Split up is_fimm
There are several sub-classes of vector immediate, and only MOVI
can use them all.  This will enable usage of MVNI and ORRI, which
use progressively fewer sub-classes.

This patch adds no new functionality, merely splits the function
and moves part of the logic into tcg_out_dupi_vec.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00