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2011-10-14tcg: Fix spelling in comment (varables -> variables)Stefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-01tcg-i386: Introduce limited deposit supportJan Kiszka
x86 cannot provide an optimized generic deposit implementation. But at least for a few special cases, namely for writing bits 0..7, 8..15, and 0..15, versions using only a single instruction are feasible. Introducing such limited support improves emulating 16-bit x86 code on x86, but also rarer cases where 32-bit or 64-bit code accesses bytes or words. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Declare TCG_TARGET_REG_BITS in tcg.hStefan Weil
TCG_TARGET_REG_BITS can be determined by the compiler, so there is no need to declare it for each individual tcg target. This is especially important for new tcg targets which will be supported by the tcg interpreter. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-21tcg: Always define all of the TCGOpcode enum members.Richard Henderson
By always defining these symbols, we can eliminate a lot of ifdefs. To allow this to be checked reliably, the semantics of the TCG_TARGET_HAS_* macros must be changed from def/undef to true/false. This allows even more ifdefs to be removed, converting them into C if statements. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-21tcg: Add and use TCG_OPF_64BIT.Richard Henderson
This allows the simplification of the op_bits function from tcg/optimize.c. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-07TCG: fix copy propagationBlue Swirl
Copy propagation introduced in 22613af4a6d9602001e6d0e7b6d98aa40aa018dc considered only global registers. However, register temps and stack allocated locals must be handled differently because register temps don't survive across brcond. Fix by propagating only within same class of temps. Tested-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-30Add TCG optimizations stubKirill Batuzov
Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize is called from tcg_gen_code_common. It calls other functions performing specific optimizations. Stub for constant folding was added. Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu-exec.c: avoid AREG0 useBlue Swirl
Make functions take a parameter for CPUState instead of relying on global env. Pass CPUState pointer to TCG prologue, which moves it to AREG0. Thanks to Peter Maydell and Laurent Desnogues for the ARM prologue change. Revert the hacks to avoid AREG0 use on Sparc hosts. Move cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. Compile the file without HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-03tcg: If DEBUG_TCGV, distinguish TCGv_ptr from TCGv_i32/TCGv_i64Peter Maydell
When compiling with DEBUG_TCGV enabled, make the TCGv_ptr type distinct from TCGv_i32/TCGv_i64. This means that using an i32 or i64 TCG op to manipulate a TCGv_ptr will always be detected at compile time, rather than only if compiling on a host system with the other word size. NB: the tcg_add_ptr and tcg_sub_ptr macros have been removed as they were not used anywhere. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-05-29Fix spelling in comment (additon -> addition)Stefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-05-23tcg: replace op_dead_iargs by op_dead_argsAurelien Jarno
Allow all args to be dead by replacing the input specific op_dead_iargs variable by op_dead_args. Note this is a purely mechanical change. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-05-08Fix typos in comments (accross -> across)Stefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-07tcg: Add support for debugging leakage of temporariesPeter Maydell
Add support (if CONFIG_DEBUG_TCG is defined) for debugging leakage of temporary variables. Generally any temporaries created by a target while it is translating an instruction should be freed by the end of that instruction; otherwise carefully crafted guest code could cause TCG to run out of temporaries and assert. By calling tcg_check_temp_count() after each instruction we can check that we are not leaking temporaries in this way. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-10-30tcg: Use fprintf_function (format checking)Stefan Weil
fprintf_function uses format checking with GCC_FMT_ATTR. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-09tcg: get rid of DEF2 in tcg-opc.hAurelien Jarno
Now that tcg-opc.h is only used in TCG code, get rid of DEF2 in tcg-opc.h. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09tcg: get rid of copy_size in TCGOpDefAurelien Jarno
copy_size is a left-over from the dyngen era, remove it. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09tcg: Make some tcg-target.c routines static.Richard Henderson
Both tcg_target_init and tcg_target_qemu_prologue are unused outside of tcg.c. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09tcg: Add TYPE parameter to tcg_out_mov.Richard Henderson
Mirror tcg_out_movi in having a TYPE parameter. This allows x86_64 to perform the move at the proper width, which may elide a REX prefix. Introduce a TCG_TYPE_REG enumerator to represent the "native width" of the host register, and to distinguish the usage from "pointer data" as represented by the existing TCG_TYPE_PTR. Update all targets to match. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-21tcg: Initialize the prologue after GUEST_BASE is fixed.Richard Henderson
This will allow backends to make intelligent choices about how to implement GUEST_BASE. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-07tcg: Add missing 'static' attributeStefan Weil
tcg_out_reloc is only used locally (in */target.c which is included in tcg.c). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-26tcg: Change TCGType to an enumeration.Richard Henderson
The TCGType name was already used consistently. Changing it to an enumeration instead of a set of defines aids debugging. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26tcg: Name the opcode enumeration.Richard Henderson
Give the enumeration formed from tcg-opc.h a name: TCGOpcode. Use that enumeration type instead of "int" whereever appropriate. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-02-18tcg: Add consistency checks for op definitionsStefan Weil
When compiled with CONFIG_DEBUG_TCG, this code looks for missing, duplicate and wrong entries in the op definitions. Errors will raise an assertion at program start (all checks are done in the initial phase). The current code contains such errors, at least for i386 guest on i386 host. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-16tcg: Add tcg_swap_cond.Richard Henderson
Returns the condition as if with swapped comparison operands. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-06tcg: add tcg_invert_condRichard Henderson
It is very handy to have a reliable mapping of a condition to its inverse. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-27tcg: Add tcg_unsigned_cond.Richard Henderson
Returns an unsigned version of a signed condition; returns the original condition otherwise. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-11-24tcg: fix tcg_regset_{set,reset}_reg with more than 32 registersAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-04tcg: remove dead codeAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-09-20Compile TCG runtime library only onceBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-27rename DEBUG_TCG to CONFIG_DEBUG_TCGJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-13Add a --enable-debug-tcg option to configureaurel32
This patch allows DEBUG_TCGV to be defined (and also prevents NDEBUG from being defined) when passing an option to the configure script. This should help to prevent any accidental changes that enable DEBUG_TCGV in tcg/tcg.h from being committed in future, and may help to encourage testing with DEBUG_TCGV enabled. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7105 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-07tcg/tcg.h: fix a few typosaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7024 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-06tcg: add a CONST flag to TCG helpersaurel32
A const function only reads its arguments and does not use TCG globals variables. Hence a call to such a function does not save TCG globals variabes back to their canonical location. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7008 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-06tcg: improve comment about pure functionsaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7007 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-10Fix tcg after commit 6800aurel32
The introduction of TCGV_EQUAL and not op is slightly broken. The definition of DEBUG_TCGV shows that. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6802 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-10tcg: define TCGV_EQUAL_I{32,64}aurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6799 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11TCG: remove obsolete old_op_count profiler fieldblueswir1
Since we don't generate any "old op" anymore, the old_op_count is unneeded. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6614 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-10Add "static"blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6588 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Remove all traces of __powerpc__malc
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the ubiquitous define which should be used to test whether gcc targets PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-03tcg: remove tcg_global_reg2_new_hack()aurel32
This patch removes the unused tcg_global_reg2_new_hack() function, which was added in r4438 to work around a register shortage problem regarding dyngen. The only ever user of this function was removed in r4577. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6150 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07Some cleanups after dyngen removalaurel32
1. hostregs_helper.h: fix comment 2. translate-all.c: rename dyngen_code(_search_pc) to tcg_gen_code(_search_pc) 3. tcg.c: - rename dyngen_table_op_count to tcg_table_op_count - no need to generate a log of dyngen ops generated - rename dyngen_code(_search_pc) to tcg_gen_code(_search_pc) 4. tcg.h: rename dyngen_code(_search_pc) to tcg_gen_code(_search_pc) Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5936 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07Some cleanups after dyngen removalaurel32
this patch removes some now unused things after dyngen removal. 1. dyngen-exec.h: op_param, op _jmp and some associated macros are now unused; 2. Makefile.target: tcg-dyngen is not needed anymore 2. tcg/tcg-op.h, tcg/tcg-opc.h: gen-op.h is dead 3. tcg.c: - INDEX_op_end is now the first op - CONFIG_DYNGEN_OP is never defined 4. tcg.h: dyngen_op not needed anymore 5. exec-all.h: remove some ASM macros. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5922 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07Some fixes for TCG debuggingblueswir1
This fixes a few things after Paul's improvements for TCG debugging: - change TCGv_i64 field name to something different from TCGv_i32 - fix things in tcg that the above change made visible. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5919 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-17TCG variable type checking.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5729 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-21TCG: add tcg_const_local_tl()aurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5504 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-05Revert "TCG: enable debug"aurel32
This reverts commit 5166, commited by error. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5169 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-05TCG: enable debugaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5166 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-24Emit and use adhoc function descriptor for code_gen_prologue on PPC64malc
Thus avoiding fragile inline assembly hackery to call into generated code. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4939 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-23Preliminary PPC64/Linux host supportmalc
ppc64.ld from Heikki Lindholm's patch http://marc.info/?l=qemu-devel&m=114086179024634&w=2 Issues: x86_64 tripple faults shortly after decompressing the kernel No immediate versions of most 64 bit operations More... git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4932 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-29Suppress bogus compiler warnings.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4803 c046a42c-6fe2-441c-8c8c-71466251a162
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