Three TODO instances are never happen cases.
Other uses of tcg_abort are also indicating unreachable cases.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The existing check was incomplete:
(1) Only applied to two of the 7 stores, and not to the loads at all.
(2) Only checked the upper, but not the lower bound of the stack.
Doing this at compile time means that we don't need to do it
at runtime as well.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Eliminating a TODO for ld16s_i64.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Eliminating a TODO for ld16u_i32.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Eliminating a TODO for ld8s_i32.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Note that we had two functions of the same name: a 32-bit version
which took two register numbers and a 64-bit version which was a
no-op wrapper for tcg_write_reg. After this, we are left with
only the 32-bit version.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For a 64-bit TCI, the upper bits of a 32-bit operation are
undefined (much like a native ppc64 32-bit operation). It
simplifies everything if we don't force-extend the result.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
That TCG opcode is used by debian-buster (arm64) running ffmpeg:
qemu-aarch64 /usr/bin/ffmpeg -i theora.mkv theora.webm
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20210128020425.2055454-1-sw@weilnetz.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
That TCG opcode is used by debian-buster (arm64) running ffmpeg:
qemu-aarch64 /usr/bin/ffmpeg -i theora.mkv theora.webm
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20210128024814.2056958-1-sw@weilnetz.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Each thread must have its own pc, even under TCI.
Remove the GETPC ifdef, because GETPC is always available for
helpers, and thus is always required. Move the assignment
under INDEX_op_call, because the value is only visible when
we make a call to a helper function.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210204014509.882821-6-richard.henderson@linaro.org>
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>
The code is currently comparing c2 to the type promotion of
uint32_t and int32_t. That is, the conversion rules are as:
(common_type) c2 == (common_type) (uint32_t)
(is_unsigned
? (uint32_t)c2
: (uint32_t)(int32_t)c2)
In the signed case we lose the desired sign extensions because
of the argument promotion rules of the ternary operator.
Solve the problem by doing the round-trip parsing through the
intermediate type and back to the desired common type (all at
one expression).
Fixes: a534bb15f3 ("tcg/s390: Use constant pool for cmpi")
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reported-by: Miroslav Rezanina <mrezanin@redhat.com>
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210204182902.1742826-1-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
This requires finishing the conversion to tcg_target_op_def.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
This exports the constraint sets from tcg_target_op_def to
a place we will be able to manipulate more in future.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This eliminates the target-specific function target_parse_constraint
and folds it into the single caller, process_op_defs. Since this is
done directly into the switch statement, duplicates are compilation
errors rather than silently ignored at runtime.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Create symbolic constants for all low-byte-addressable
and second-byte-addressable registers. Create a symbol
for the registers that need reserving for softmmu.
There is no functional change for 's', as this letter is
only used for i386. The BYTEL name is correct for the
action we wish from the constraint.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rather than check the type when filling in the constraint,
check it when matching the constant. This removes the only
use of the type argument to target_parse_constraint.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The opcodes always exist, regardless of whether or not they
are enabled. Remove the unnecessary ifdefs.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These are identical to the 'r' constraint.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Restrict tci_write_reg16() to 64-bit hosts to fix on 32-bit ones:
[520/1115] Compiling C object libqemu-arm-linux-user.fa.p/tcg_tci.c.o
FAILED: libqemu-arm-linux-user.fa.p/tcg_tci.c.o
tcg/tci.c:132:1: error: 'tci_write_reg16' defined but not used [-Werror=unused-function]
tci_write_reg16(tcg_target_ulong *regs, TCGReg index, uint16_t value)
^~~~~~~~~~~~~~~
Fixes: 2f160e0f97 ("tci: Add implementation for INDEX_op_ld16u_i64")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20210123094107.2340222-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Some large translation blocks can generate so many unique
constants that we run out of temps to hold them. In this
case, longjmp back to the start of code generation and
restart with a smaller translation block.
Buglink: https://bugs.launchpad.net/bugs/1912065
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Pages can't be both write and executable at the same time on Apple
Silicon. macOS provides public API to switch write protection [1] for
JIT applications, like TCG.
1. https://developer.apple.com/documentation/apple_silicon/porting_just-in-time_compilers_to_apple_silicon
Tested-by: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20210113032806.18220-1-r.bolshakov@yadro.com>
[rth: Inline the qemu_thread_jit_* functions;
drop the MAP_JIT change for a follow-on patch.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
Improve expand_vec_shi to use sign-extraction for MO_32.
This allows a single VSPLTISB instruction to load all of
the valid shift constants.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These interfaces have been replaced by tcg_gen_dupi_vec
and tcg_constant_vec.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
