aboutsummaryrefslogtreecommitdiff
path: root/tcg
AgeCommit message (Collapse)AuthorFilesLines
2023-03-05tcg: Remove tcg_check_temp_count, tcg_clear_temp_countRichard Henderson1-46/+8
Since all temps allocated by guest front-ends are now TEMP_TB, and we don't recycle TEMP_TB, there's no point in requiring that the front-ends free the temps at all. Begin by dropping the inner-most checks that all temps have been freed. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05tcg: Decode the operand to INDEX_op_mb in dumpsRichard Henderson1-0/+79
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05tcg/i386: Mark Win64 call-saved vector regs as reservedRichard Henderson1-0/+13
While we do not include these in tcg_target_reg_alloc_order, and therefore they ought never be allocated, it seems safer to mark them reserved as well. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05include/qemu/cpuid: Introduce xgetbv_lowRichard Henderson1-7/+4
Replace the two uses of asm to expand xgetbv with an inline function. Since one of the two has been using the mnemonic, assume that the comment about "older versions of the assember" is obsolete, as even that is 4 years old. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05tcg: Merge two sequential labelsRichard Henderson1-1/+43
Remove the first label and redirect all uses to the second. Tested-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05tcg: Link branches to the labelsRichard Henderson2-13/+39
This allows us to easily find all branches that use a label. Since 'refs' is only tested vs zero, remove it and test for an empty list instead. Drop the use of bitfields, which had been used to pack refs into a single 32-bit word. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05tcg: Include "qemu/timer.h" for profile_getclockRichard W.M. Jones1-0/+1
When CONFIG_PROFILER is set there are various undefined references to profile_getclock. Include the header which defines this function. For example: ../tcg/tcg.c: In function ‘tcg_gen_code’: ../tcg/tcg.c:4905:51: warning: implicit declaration of function ‘profile_getclock’ [-Wimplicit-function-declaration] 4905 | qatomic_set(&prof->opt_time, prof->opt_time - profile_getclock()); | ^~~~~~~~~~~~~~~~ Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230303084948.3351546-1-rjones@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Remove tcg_temp_local_new_*, tcg_const_local_*Richard Henderson1-16/+0
These symbols are now unused. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Don't re-use TEMP_TB temporariesRichard Henderson1-51/+54
Reusing TEMP_TB interferes with detecting whether the temp can be adjusted to TEMP_EBB. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Use tcg_constant_ptr in do_dupRichard Henderson1-2/+1
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Use tcg_temp_ebb_new_* in tcg/Richard Henderson3-223/+223
All of these have obvious and quite local scope. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Pass TCGTempKind to tcg_temp_new_internalRichard Henderson1-4/+4
While the argument can only be TEMP_EBB or TEMP_TB, it's more obvious this way. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Remove TEMP_NORMALRichard Henderson1-16/+3
TEMP_NORMAL is a subset of TEMP_EBB. Promote single basic block temps to single extended basic block. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Add liveness_pass_0Richard Henderson1-0/+70
Attempt to reduce the lifetime of TEMP_TB. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Use noinline for major tcg_gen_code subroutinesRichard Henderson1-3/+6
This makes it easier to assign blame with perf. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Rename TEMP_LOCAL to TEMP_TBRichard Henderson2-10/+10
Use TEMP_TB as that is more explicit about the default lifetime of the data. While "global" and "local" used to be contrasting, we have more lifetimes than that now. Do not yet rename tcg_temp_local_new_*, just the enum. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Remove branch-to-next regardless of reference countRichard Henderson1-16/+17
Just because the label reference count is more than 1 does not mean we cannot remove a branch-to-next. By doing this first, the label reference count may drop to 0, and then the label itself gets removed as before. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01tcg: Adjust TCGContext.temps_in_use checkRichard Henderson1-6/+4
Change the temps_in_use check to use assert not fprintf. Move the assert for double-free before the check for count, since that is the more immediate problem. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-27tcg/tcg-op-gvec: Remove unused "qemu/main-loop.h" headerPhilippe Mathieu-Daudé1-1/+0
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221219170806.60580-3-philmd@linaro.org>
2023-02-27tcg: Silent -Wmissing-field-initializers warningPhilippe Mathieu-Daudé1-1/+1
Silent when compiling with -Wextra: tcg/i386/tcg-target.opc.h:34:1: warning: missing field 'args_ct' initializer [-Wmissing-field-initializers] DEF(x86_punpckl_vec, 1, 2, 0, IMPLVEC) ^ ../tcg/tcg-common.c:30:66: note: expanded from macro 'DEF' { #s, oargs, iargs, cargs, iargs + oargs + cargs, flags }, ^ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20221220143532.24958-2-philmd@linaro.org>
2023-02-27exec: Remove unused 'qemu/timer.h' timerPhilippe Mathieu-Daudé1-1/+0
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221219170806.60580-2-philmd@linaro.org>
2023-02-08Don't include headers already included by qemu/osdep.hMarkus Armbruster1-1/+0
This commit was created with scripts/clean-includes. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20230202133830.2152150-19-armbru@redhat.com>
2023-02-04tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_targetRichard Henderson1-1/+1
'offset' should be bits [23:5] of LDR instruction, rather than [4:0]. Fixes: d59d83a1c388 ("tcg/aarch64: Reorg goto_tb implementation") Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Reported-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Split out tcg_gen_nonatomic_cmpxchg_i{32,64}Richard Henderson1-48/+88
Normally this is automatically handled by the CF_PARALLEL checks with in tcg_gen_atomic_cmpxchg_i{32,64}, but x86 has a special case of !PREFIX_LOCK where it always wants the non-atomic version. Split these out so that x86 does not have to roll its own. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add tcg_gen_{non}atomic_cmpxchg_i128Richard Henderson1-0/+85
This will allow targets to avoid rolling their own. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add guest load/store primitives for TCGv_i128Richard Henderson1-0/+134
These are not yet considering atomicity of the 16-byte value; this is a direct replacement for the current target code which uses a pair of 8-byte operations. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add basic data movement for TCGv_i128Richard Henderson2-0/+33
Add code generation functions for data movement between TCGv_i128 (mov) and to/from TCGv_i64 (concat, extract). Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add temp allocation for TCGv_i128Richard Henderson1-18/+42
This enables allocation of i128. The type is not yet usable, as we have not yet added data movement ops. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128Richard Henderson9-3/+21
Fill in the parameters for the host ABI for Int128 for those backends which require no extra modification. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg/tci: Add TCG_TARGET_CALL_{RET,ARG}_I128Richard Henderson4-26/+48
Fill in the parameters for libffi for Int128. Adjust the interpreter to allow for 16-byte return values. Adjust tcg_out_call to record the return value length. Call parameters are no longer all the same size, so we cannot reuse the same call_slots array for every function. Compute it each time now, but only fill in slots required for the call we're about to make. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg/tci: Fix big-endian return register orderingRichard Henderson1-9/+10
We expect the backend to require register pairs in host-endian ordering, thus for big-endian the first register of a pair contains the high part. We were forcing R0 to contain the low part for calls. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg/i386: Add TCG_TARGET_CALL_{RET,ARG}_I128Richard Henderson2-1/+39
Fill in the parameters for the host ABI for Int128. Adjust tcg_target_call_oarg_reg for _WIN64, and tcg_out_call for i386 sysv. Allow TCG_TYPE_V128 stores without AVX enabled. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add TCG_CALL_RET_BY_VECRichard Henderson2-0/+20
This will be used by _WIN64 to return i128. Not yet used, because allocation is not yet enabled. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Introduce tcg_target_call_oarg_regRichard Henderson11-46/+72
Replace the flat array tcg_target_call_oarg_regs[] with a function call including the TCGCallReturnKind. Extend the set of registers for ARM to r0-r3 to match the ABI: https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#result-return Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add TCG_CALL_{RET,ARG}_BY_REFRichard Henderson2-3/+135
These will be used by some hosts, both 32 and 64-bit, to pass and return i128. Not yet used, because allocation is not yet enabled. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Introduce tcg_out_addi_ptrRichard Henderson11-0/+86
Implement the function for arm, i386, and s390x, which will use it. Add stubs for all other backends. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Allocate objects contiguously in temp_allocate_frameRichard Henderson1-8/+26
When allocating a temp to the stack frame, consider the base type and allocate all parts at once. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Handle dh_typecode_i128 with TCG_CALL_{RET,ARG}_NORMALRichard Henderson1-4/+33
Many hosts pass and return 128-bit quantities like sequential 64-bit quantities. Treat this just like we currently break down 64-bit quantities for a 32-bit host. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Init temp_subindex in liveness_pass_2Richard Henderson1-0/+1
Correctly handle large types while lowering. Fixes: fac87bd2a49b ("tcg: Add temp_subindex to TCGTemp") Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-03Merge tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu into stagingPeter Maydell9-139/+278
common-user: Re-enable ppc32 host tcg: Avoid recursion in tcg_gen_mulu2_i32 tcg: Mark tcg helpers noinline to avoid an issue with LTO tcg/arm: Use register pair allocation for qemu_{ld,st}_i64 disas: Enable loongarch disassembler, and fixes tcg/loongarch64: Improve move immediate tcg/loongarch64: Improve add immediate tcg/loongarch64: Improve setcond tcg/loongarch64: Implement movcond tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst tcg/loongarch64: Reorg goto_tb implementation # -----BEGIN PGP SIGNATURE----- # # iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmPPO+0dHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV93jwgAhG+H5XHtJqF2isCc # a6pYuUWRbhsOFL23FmWKx2O41tHlJ2Seort8M9eIHOu21L9DUJFd291O/4ckiMQM # 13+KH/Kl5fumM+uEkO9YMyplOddmvygdTd5dCi5y349Gi3CgJH3n4HUl0qnioM/7 # Dy3n8JIvYsBp+8jUsLXo1gSl5P1kLMLwJmP68qgy8z8Xly4bDco1Nb2UKb7qKevO # lMr6L+2/ALbKLZ6OU50erdUrlbgNs0eiQyJAfJ47SQ57RGuqF4pZ09+9yRI2FPZt # UlSn+srsec1ieYyM2e5krVWbNcXaj6FouV7CkbgFXoUZt29xA1HTXsso+8vLgDPu # g8vvuw== # =Up0b # -----END PGP SIGNATURE----- # gpg: Signature made Tue 24 Jan 2023 02:01:17 GMT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu: tcg/loongarch64: Reorg goto_tb implementation tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst tcg/loongarch64: Implement movcond tcg/loongarch64: Improve setcond expansion tcg/loongarch64: Introduce tcg_out_addi tcg/loongarch64: Update tcg-insn-defs.c.inc tcg/loongarch64: Optimize immediate loading target/loongarch: Disassemble pcadd* addresses target/loongarch: Disassemble jirl properly target/loongarch: Enable the disassembler for host tcg tcg: Mark tcg helpers noinline to avoid an issue with LTO linux-user: Implment host/ppc/host-signal.h common-user/host/ppc: Implement safe-syscall.inc.S tcg/arm: Use register pair allocation for qemu_{ld,st}_i64 tcg: Avoid recursion in tcg_gen_mulu2_i32 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-02tcg: exclude non-memory effecting helpers from instrumentationEmilio Cota1-2/+4
There are actually a whole bunch of helpers that don't affect memory that we shouldn't instrument. They are helpfully identified by the TCG_CALL_NO_SIDE_EFFECTS flag which marks out lookup_tb_ptr as well as a lot of the maths helpers. To avoid the string compare we introduce a new flag for plugin internals so we skip that too. Related: #1381 Signed-off-by: Emilio Cota <cota@braap.org> Message-Id: <20230108164731.61469-4-cota@braap.org> [AJB: updated to skip all no SE plugins, add flag for plugin helper] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230124180127.1881110-34-alex.bennee@linaro.org>
2023-01-23tcg/loongarch64: Reorg goto_tb implementationRichard Henderson2-46/+33
The old implementation replaces two insns, swapping between b <dest> nop and pcaddu18i tmp, <dest> jirl zero, tmp, <dest> & 0xffff There is a race condition in which a thread could be stopped at the jirl, i.e. with the top of the address loaded, and when restarted we have re-linked to a different TB, so that the top half no longer matches the bottom half. Note that while we never directly re-link to a different TB, we can link, unlink, and link again all while the stopped thread remains stopped. The new implementation replaces only one insn, swapping between b <dest> and pcadd tmp, <jmp_addr> falling through to load the address from tmp, and branch. Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldstRichard Henderson1-1/+1
Take the w^x split into account when computing the pc-relative distance to an absolute pointer. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Implement movcondRichard Henderson3-2/+36
Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Improve setcond expansionRichard Henderson1-42/+107
Split out a helper function, tcg_out_setcond_int, which does not always produce the complete boolean result, but returns a set of flags to do so. Accept all int32_t as constant input, so that LE/GT can adjust the constant to LT. Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Introduce tcg_out_addiRichard Henderson3-10/+53
Adjust the constraints to allow any int32_t for immediate addition. Split immediate adds into addu16i + addi, which covers quite a lot of the immediate space. For the hole in the middle, load the constant into TMP0 instead. Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Update tcg-insn-defs.c.incRichard Henderson1-1/+9
Regenerate with ADDU16I included: $ cd loongarch-opcodes/scripts/go $ go run ./genqemutcgdefs > $QEMU/tcg/loongarch64/tcg-insn-defs.c.inc Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/loongarch64: Optimize immediate loadingRui Wang1-23/+12
diff: Imm Before After 0000000000000000 addi.w rd, zero, 0 addi.w rd, zero, 0 lu52i.d rd, zero, 0 00000000fffff800 lu12i.w rd, -1 addi.w rd, zero, -2048 ori rd, rd, 2048 lu32i.d rd, 0 lu32i.d rd, 0 Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Rui Wang <wangrui@loongson.cn> Message-Id: <20221107144713.845550-1-wangrui@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg/arm: Use register pair allocation for qemu_{ld,st}_i64Richard Henderson3-13/+24
Although we still can't use ldrd and strd for all operations, increase the chances by getting the register allocation correct. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23tcg: Avoid recursion in tcg_gen_mulu2_i32Richard Henderson1-1/+3
We have a test for one of TCG_TARGET_HAS_mulu2_i32 or TCG_TARGET_HAS_muluh_i32 being defined, but the test became non-functional when we changed to always define all of these macros. Replace this with a build-time test in tcg_gen_mulu2_i32. Fixes: 25c4d9cc845 ("tcg: Always define all of the TCGOpcode enum members.") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1435 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.1 at 2024-12-25 05:27:01 +0000