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2013-01-05target-s390: Use TCG_CALL_NO_WG for memory helpersRichard Henderson1-15/+15
Those that do not read or write tcg registers, but can raise exceptions via memory faults. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Perform COMPARE AND SWAP inlineRichard Henderson4-96/+124
Still no proper solution for CONFIG_USER_ONLY, but the system version is significantly better. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Optimize get_addressRichard Henderson1-26/+18
Don't load the displacement into a register first, add it second so that tcg_gen_addi_i64 can eliminate zeros. Don't mask the displacement first so that we don't turn small negative numbers into large positive numbers. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Optimize ADDC/SUBBRichard Henderson1-19/+37
Giving the proper mask to disas_jcc allows us to generate an inline comparison generating the carry/borrow with setcond. In the very worst case, when we must use the external helper to compute a value for CC, we generate (cc > 1) instead of (cc >> 1), which is only very slightly slower on common cpus. In the very best case, when the CC comes from a COMPARE insn and the compiler is using ALCG with zero, everything folds out to become just the setcond that the compiler wanted. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Optimize ADDU/SUBU CC testingRichard Henderson1-0/+68
We can easily generate some masks for logical add/subtract inline. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Tidy comparisonsRichard Henderson1-22/+17
After full conversion, we can audit the uses of LTGT cc ops and see that none of the instructions can ever set CC=3. Thus we can extend the table to treat that bit as ignored. This fixes a regression wrt the pre-conversion translation in which NE was used for both m=6 and m=7. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Optmize emitting discardsRichard Henderson1-6/+24
While they aren't expensive, they aren't free to process. When we know that the three cc helper variables are dead, don't kill them. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Optimize XCRichard Henderson2-4/+48
Notice XC with same address and convert that to store of zero. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Fix cpu_clone_regsRichard Henderson1-1/+1
R2 is the syscall return register, not R0. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement LOAD/SET FP AND SIGNALRichard Henderson4-8/+40
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement SET ROUNDING MODERichard Henderson2-0/+44
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Use uint64_to_float128Richard Henderson1-2/+1
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement LCDFRRichard Henderson1-0/+1
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Check insn operand specificationsRichard Henderson1-36/+159
Removes all the fixmes for even register numbers, etc. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement CPSDRRichard Henderson2-0/+19
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement POPCNTRichard Henderson4-0/+22
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement CONVERT FROM LOGICALRichard Henderson4-0/+66
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement CONVERT TO LOGICALRichard Henderson4-0/+133
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement STORE ON CONDITIONRichard Henderson2-0/+32
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement LOAD ON CONDITIONRichard Henderson2-0/+35
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement COMPARE AND TRAPRichard Henderson2-0/+40
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement COMPARE RELATIVE LONGRichard Henderson1-0/+4
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement PREFETCHRichard Henderson1-0/+5
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement R[NOX]SBGRichard Henderson2-0/+57
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement LDGR, LGDRRichard Henderson1-0/+4
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement RISBGRichard Henderson2-0/+88
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement COMPARE AND BRANCHRichard Henderson2-0/+47
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Tidy s->op_cc handlingRichard Henderson1-40/+55
There's no need to force computation of the true cc_op when taking an exception or single stepping. In either case we'll enter the next TB with s->cc_op = DYNAMIC and recompute anyway. Just make sure that s->cc_op is stored back to env->cc_op as needed. Delete some dead functions, avoid allocating unused TCG temps, drop the old s->is_jmp setting. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Implement BRANCH ON INDEXRichard Henderson2-0/+62
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Delete dead code from old translatorRichard Henderson1-291/+27
The use of inline restricts detection of static functions that are no longer used. Limit the use of inline to those functions that are conditionally used based on CONFIG_USER_ONLY. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SERVCRichard Henderson4-25/+14
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert LPSWERichard Henderson2-19/+20
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STFLRichard Henderson2-9/+16
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STSIRichard Henderson4-17/+15
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SACFRichard Henderson2-13/+10
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STCKERichard Henderson4-24/+24
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert CSPRichard Henderson4-16/+18
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STURARichard Henderson4-15/+13
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert subchannel instructionsRichard Henderson2-10/+22
While we're at it, list all of the chapter 14 subchannel insns. Which is easy since all merely need indicate non-operation. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert RRBERichard Henderson4-14/+14
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SSKERichard Henderson4-13/+11
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert ISKERichard Henderson2-12/+9
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert IPTERichard Henderson2-11/+11
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STAPRichard Henderson2-14/+12
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SPX, STPXRichard Henderson3-24/+21
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert PTLBRichard Henderson2-5/+11
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SPKARichard Henderson2-12/+10
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SPT, STPTRichard Henderson4-24/+22
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SCKC, STCKCRichard Henderson4-24/+22
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert STCKRichard Henderson4-14/+14
Signed-off-by: Richard Henderson <rth@twiddle.net>
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