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2015-04-09tcg/tcg-op.c: Fix ld/st of 64 bit values on 32-bit bigendian hostsPeter Maydell
Commit 951c6300f7 out-of-lined the 32-bit-host versions of tcg_gen_{ld,st}_i64, but in the process it inadvertently changed an #ifdef HOST_WORDS_BIGENDIAN to #ifdef TCG_TARGET_WORDS_BIGENDIAN. Since the latter doesn't get defined anywhere this meant we always took the "LE host" codepath, and stored the two halves of the value in the wrong order on BE hosts. This typically breaks any 64-bit guest on a 32-bit BE host completely, and will have possibly more subtle effects even for 32-bit guests. Switch the ifdef back to HOST_WORDS_BIGENDIAN. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Tested-by: Andreas Färber <afaerber@suse.de> Message-id: 1428523029-13620-1-git-send-email-peter.maydell@linaro.org
2015-03-16tcg/optimize: Handle or r,a,a with constant aRichard Henderson
As seen with ubuntu-5.10-live-powerpc.iso. Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg: Complete handling of ALWAYS and NEVERRichard Henderson
Missing from movcond, and brcondi_i32 (but not brcondi_i64). Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg: Use tcg_malloc to allocate TCGLabelRichard Henderson
Pre-allocating 512 of them per TB is a waste. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg: Change generator-side labels to a pointerRichard Henderson
This is less about improved type checking than enabling a subsequent change to the representation of labels. Acked-by: Claudio Fontana <claudio.fontana@huawei.com> Tested-by: Claudio Fontana <claudio.fontana@huawei.com> Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Stefan Weil <sw@weilnetz.de> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg: Change translator-side labels to a pointerRichard Henderson
This is improved type checking for the translators -- it's no longer possible to accidentally swap arguments to the branch functions. Note that the code generating backends still manipulate labels as int. With notable exceptions, the scope of the change is just a few lines for each target, so it's not worth building extra machinery to do this change in per-target increments. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg-ia64: Use tcg_malloc to allocate TCGLabelQemuLdstRichard Henderson
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13tcg: Use tcg_malloc to allocate TCGLabelQemuLdstRichard Henderson
Pre-allocating 640 of them per TB is a waste. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Remove unused opcodesRichard Henderson
We no longer need INDEX_op_end to terminate the list, nor do we need 5 forms of nop, since we just remove the TCGOp instead. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Implement insert_op_beforeRichard Henderson
Rather reserving space in the op stream for optimization, let the optimizer add ops as necessary. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Remove opcodes instead of noping them outRichard Henderson
With the linked list scheme we need not leave nops in the stream that we need to process later. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Put opcodes in a linked listRichard Henderson
The previous setup required ops and args to be completely sequential, and was error prone when it came to both iteration and optimization. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Introduce tcg_op_buf_count and tcg_op_buf_fullRichard Henderson
The method by which we count the number of ops emitted is going to change. Abstract that away into some inlines. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Reduce ifdefs in tcg-op.cRichard Henderson
Almost completely eliminates the ifdefs in this file, improving confidence in the lesser used 32-bit builds. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12tcg: Move some opcode generation functions out of lineRichard Henderson
Some of these functions are really quite large. We have a number of things that ought to be circularly dependent, but we duplicated code to break that chain for the inlines. This saved 25% of the code size of one of the translators I examined. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-12-17tcg: add separate monitor command to dump opcode countersMax Filippov
Currently 'info jit' outputs half of the information to monitor and the rest to qemu log. Dumping opcode counts to monitor as a part of 'info jit' command doesn't sound useful. Add new monitor command 'info opcount' that only dumps opcode counters. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2014-11-02tcg/mips: fix store softmmu slow pathAurelien Jarno
Commit 9d8bf2d1 moved the softmmu slow path out of line and introduce a regression at the same time by always calling tcg_out_tlb_load with is_load=1. This makes impossible to run any significant code under qemu-system-mips*. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: qemu-stable@nongnu.org Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2014-09-29tcg: Always enable TCGv type checkingRichard Henderson
Instead of using structures, which imply some amount of overhead on certain ABIs, use pointer types. This actually reduces the size of the binaries vs a NON-debug build on ppc64 and x86_64, due to a reduction in the number of sign-extension insns. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-aarch64: Use 32-bit loads for qemu_ld_i32Richard Henderson
The "old" qemu_ld opcode did not specify the size of the result, and so we had to assume full register width. With the new opcodes, we can narrow the result. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Use UMULXHI instructionRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Rename ADDX/SUBX insnsRichard Henderson
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>
2014-09-29tcg-sparc: Use ADDXC in setcond_i64Richard Henderson
Similar to the ADDC tricks we use in setcond_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Fix setcond_i32 uninitialized valueRichard Henderson
We failed to swap c1 and c2 correctly for NE c2 == 0. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Use ADDXC in addsub2_i64Richard Henderson
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>
2014-09-29tcg-sparc: Support addsub2_i64Richard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-08-24tcg: dump op count into qemu logzhanghailiang
fopen() may fail and it does not check its return vaule here, it is better to dump op count to the normal log file. Signed-off-by: Li Liu <john.liuli@huawei.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-29tcg/ppc: Fix support for 64-bit PPC MacOSX hostsPeter Maydell
Add back in the support for 64-bit PPC MacOSX hosts that was broken in the recent merge of the 32-bit and 64-bit TCG backends. Reported-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Tested-by: Andreas Färber <andreas.faerber@web.de>
2014-06-27tcg/ppc: Fix failure in tcg_out_mem_longRichard Henderson
With rt != r0 on loads, we use rt for scratch. If we need an index register different from base, we can't use rt, but r0 is usable. Signed-off-by: Richard Henderson <rth@twiddle.net> Message-id: 1403843160-30332-1-git-send-email-rth@twiddle.net Tested-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-24tcg: mark tcg_out* and tcg_patch* with attribute 'unused'Peter Maydell
The tcg_out* and tcg_patch* functions are utility routines that may or may not be used by a particular backend; mark them with the 'unused' attribute to suppress spurious warnings if they aren't used. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-24Fix new typos (found by codespell)Stefan Weil
* accomodate -> accommodate * aquiring -> acquiring * beacuse -> because * loosing -> losing * prefering -> preferring * threshhold -> threshold Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-23tcg-ppc: Use the return address as a base pointerRichard Henderson
This can significantly reduce code size for generation of (some) 64-bit constants. With the side effect that we know for a fact that exit_tb can use the register to good effect. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Merge cache-utils into the backendRichard Henderson
As a "utility", it only supported ppc, and in a way that other tcg backends provided directly in tcg-target.h. Removing this disparity is easier now that the two ppc backends are merged. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Rename the tcg/ppc64 backendRichard Henderson
The other tcg backends that support 32- and 64-bit modes use the 32-bit name for the port. Follow suit. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Remove the backendRichard Henderson
Vectoring the 32-bit build to the ppc64 directory. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 shiftsRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Support mulsh_i32Richard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 register usageRichard Henderson
Good enough to run some instructions before things go awry. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 qemu_ld/stRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 brcond2, setcond2, muluhRichard Henderson
Now passes tcg_add_target_add_op_defs assertions, but not complete enough to function. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Begin merging ppc32 with ppc64Richard Henderson
Just enough to compile, assuming you edit config-host.mak manually. It will still abort at runtime, due to missing brcond2, setcond2, mulu2. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Fix sub2 implementationRichard Henderson
All sorts of confusion on argument ordering. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge 32-bit ABIs into the prologue / frame codeRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Adjust tcg_out_call for ELFv2Ulrich Weigand
The new ELFv2 ABI, used by default on powerpc64le-linux hosts, introduced some changes that are incompatible with code currently generated by the ppc64 TGC target. In particular, we no longer use function descriptors. This patch adds support for the ELFv2 ABI in the ppc64 TGC function call and function prologue sequences. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Ulrich Weigand <ulrich.weigand@de.ibm.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Support the ppc64 elfv2 ABIRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Use the correct test in tcg_out_callRichard Henderson
The correct test uses the _CALL_AIX macro, not a host-specific macro. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Better parameterize the stack frameRichard Henderson
In preparation for supporting other ABIs. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Fix TCG_TARGET_CALL_STACK_OFFSETRichard Henderson
The calling convention reserves space for the 8 register parameters on the stack, so using only 6*8=48 as the offset was wrong. We never saw this bug because we don't have any helpers with more than 5 parameters. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Move call macros out of tcg-target.hRichard Henderson
These values are private to tcg.c; we don't need to expose this nonsense to the translators. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Make TCG_AREG0 and TCG_REG_CALL_STACK enum constantsRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Use tcg_out_{ld,st,cmp} internallyRichard Henderson
Rather than using tcg_out32 and opcodes directly. This allows us to remove LD_ADDR and CMP_L macros. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
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