aboutsummaryrefslogtreecommitdiff
path: root/tcg/s390/tcg-target.c
AgeCommit message (Collapse)Author
2015-08-24tcg: implement real ext_i32_i64 and extu_i32_i64 opsAurelien Jarno
Implement real ext_i32_i64 and extu_i32_i64 ops. They ensure that a 32-bit value is always converted to a 64-bit value and not propagated through the register allocator or the optimizer. Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Stefan Weil <sw@weilnetz.de> Acked-by: Claudio Fontana <claudio.fontana@huawei.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-01tcg/s390x: Mask TCGMemOp appropriately for indexingAurelien Jarno
Commit 2b7ec66f fixed TCGMemOp masking following the MO_AMASK addition, but two cases were forgotten in the TCG S390 backend. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2015-07-07tcg/s390: fix branch target change during code retranslationAurelien Jarno
Make sure to not modify the branch target. This ensure that the branch target is not corrupted during partial retranslation. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Tested-by: Alexander Graf <agraf@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-09tcg: Mask TCGMemOp appropriately for indexingRichard Henderson
The addition of MO_AMASK means that places that used inverted masks need to be changed to use positive masks, and places that failed to mask the intended bits need updating. Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com> Tested-by: Yongbok Kim <yongbok.kim@imgtec.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-14tcg: Push merged memop+mmu_idx parameter to softmmu routinesRichard Henderson
The extra information is not yet used but it is now available. This requires minor changes through all of the tcg backends. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-14tcg: Merge memop and mmu_idx parameters to qemu_ld/stRichard Henderson
At the tcg opcode level, not at the tcg-op.h generator level. This requires minor changes through all of the tcg backends, but none of the cpu translators. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> 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>
2014-05-28tcg-s390: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Implement direct chaining of TBsRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Improve setcondRichard Henderson
There are a variety of common cases for which we can use carry tricks to avoid a conditional branch. On very new hardware, use LOAD ON CONDITION instead of a conditional branch. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Allow immediate operands to add2 and sub2Richard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Implement tcg_register_jitRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Use more risbg in the tlb sequenceRichard Henderson
Elides two insns from the sequence. The resulting tlb compare sequence is satisfyingly minimal: risbg %r2,%r8,51,186,56 risbg %r3,%r8,61,178,0 cg %r3,904(%r10,%r2) lg %r2,920(%r10,%r2) jlh tlb_miss Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Move ldst helpers out of lineRichard Henderson
That is, the old LDST_OPTIMIZATION. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Convert to new ldst opcodesRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Integrate endianness into TCGMemOpRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Convert to TCGMemOpRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Fix off-by-one in wraparound andiRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12tcg: Remove unreachable code in tcg_out_op and op_defsRichard Henderson
The INDEX_op_call case has just been obsoleted; the mov and movi cases have not been reachable for years. Attempt to document this both in each tcg_out_op switch, and via TCG_OPF_NOT_PRESENT. Because of the TCG_OPF_NOT_PRESENT change, this must be done for all targets in a single commit. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12tcg-s390: Rename tgen_calli to tcg_out_callRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12tcg-s390: Define TCG_TARGET_INSN_UNIT_SIZERichard Henderson
And use tcg pointer differencing functions as appropriate. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-18tcg-s390: Remove W constraintRichard Henderson
Now redundant with the type parameter to tcg_target_const_match. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-18tcg: Add TCGType parameter to tcg_target_const_matchRichard Henderson
Most 64-bit targets need to be able to ignore the high bits of a TCG_TYPE_I32 value. Suggested-by: Stuart Brady <sdb@zubnet.me.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-01tcg/s390: Remove sigill_handlerRichard Henderson
Commit c9baa30f42a87f61627391698f63fa4d1566d9d8 failed to delete all of the relevant code, leading to Werrors about unused symbols. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-11-30tcg-s390: Use qemu_getauxval in query_facilitiesRichard Henderson
No need to set up a SIGILL signal handler for detection anymore. Remove a ton of sanity checks that must be true, given that we're requiring a 64-bit build (the note about 31-bit KVM is satisfied by configuring with TCI). Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-10-10tcg: Add tcg-be-null.hRichard Henderson
This is a no-op backend data implementation, for those targets that are not currently using the load/store optimization path. This is prepatory to always requiring these functions in all backends. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02exec: Split softmmu_defs.hRichard Henderson
The _cmmu helpers can be moved to exec-all.h. The helpers that are used from TCG will shortly need access to tcg_target_long so move their declarations into tcg.h. This requires minor include adjustments to all TCG backends. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change tcg_out_ld/st offset to intptr_tRichard Henderson
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change relocation offsets to intptr_tRichard Henderson
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-06-05tcg: Remove redundant tcg_target_init checksRichard Henderson
We've got a compile-time check for the condition in exec/cpu-defs.h. Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Fix merge error in tgen_brcondRichard Henderson
When the TCG condition codes were re-organized last year, we failed to update all of the "old-style" tests for unsigned. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Use all 20 bits of the offset in tcg_out_memRichard Henderson
This can save one insn, if the constant has any bits in 32-63 set, but no bits in 21-31 set. It never results in more insns. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Use load-address for additionRichard Henderson
Since we're always in 64-bit mode, load address performs a full 64-bit add. Use that for 3-address addition, as well as for larger constant addends when we lack extended-immediates facility. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Cleanup argument shuffling fixme in softmmu codeRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Use risbgz for andiRichard Henderson
This is immediately usable by the tlb lookup code. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Remove constraint letters for andRichard Henderson
Since we have a free temporary and can always just load the constant, we ought to do so, rather than spending the same effort constraining the const. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Implement deposit opcodesRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Implement movcond opcodesRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Implement mulu2_i64 opcodeRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Implement add2/sub2 opcodesRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Remove useless preprocessor conditionsRichard Henderson
We only support 64-bit code generation for s390x. Don't clutter the code with ifdefs that suggest otherwise. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Properly allocate a stack frame.Richard Henderson
Set TCG_TARGET_CALL_STACK_OFFSET properly for the abi. Allocate the standard TCG_STATIC_CALL_ARGS_SIZE. And while we're at it, allocate space for CPU_TEMP_BUF_NLONGS. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-05tcg-s390: Fix moviRichard Henderson
The code to load the high 64 bits assumed that the insn used to load the low 64 bits zero-extended. Enforce that.
2012-12-19exec: move include files to include/exec/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-06tcg: Add TCG_COND_NEVER, TCG_COND_ALWAYSRichard Henderson
There are several cases that can be handled easier inside both translators and code generators if we have out-of-band values for conditions. It's easy enough to handle ALWAYS and NEVER in the natural way inside the tcg middle-end. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06tcg: Add is_unsigned_condRichard Henderson
Before we rearrange the TCG_COND enumeration, add a predicate for the (single) use of comparisons vs TCGCond. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06tcg: remove obsolete jmp opAurelien Jarno
The TCG jmp operation doesn't really make sense in the QEMU context, it is unused, it is not implemented by some targets, and it is wrongly implemented by some others. This patch simply removes it. Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Stefan Weil<sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-22tcg: Remove tcg_target_get_call_iarg_regs_countStefan Weil
The TCG targets no longer need individual implementations. Since commit 6a18ae2d2947532d5c26439548afa0481c4529f9, 'flags' is no longer used in tcg_target_get_call_iarg_regs_count. The remaining tcg_target_get_call_iarg_regs_count is trivial and only called once. Therefore the patch eliminates it completely. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15Remove unused CONFIG_TCG_PASS_AREG0 and dead codeBlue Swirl
Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets, remove dead code and support for !CONFIG_TCG_PASS_AREG0 case. Remove dyngen-exec.h and all references to it. Although included by hw/spapr_hcall.c, it does not seem to use it. Remove unused HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-09-10tcg/s390: fix ld/st with CONFIG_TCG_PASS_AREG0Aurelien Jarno
The load/store slow path has been broken in e141ab52d: - We need to move 4 registers for store functions and 3 registers for load functions and not the reverse. - According to the s390x calling convention the arguments of a function should be zero extended. This means that the register shift should be done with TCG_TYPE_I64 to ensure the higher word is correctly zero extended when needed. I am aware that CONFIG_TCG_PASS_AREG0 is being removed and thus that this patch can be improved, but doing so means it can also be applied to the 1.1 and 1.2 stable branches. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-11 01:09:14 +0000