Re: [Qemu-devel] [PATCH 00/38] Add double-word addition and widening multiply tcg ops

[Blue Swirl]

Thanks, applied all.

On Wed, Feb 20, 2013 at 7:51 AM, Richard Henderson <address@hidden> wrote:
> ... and use them where appropriate in the targets.  As can be seen,
> most targets can make use of a widening multiply.  And if one is
> sufficiently clever, one can use add2 to significantly improve carry
> generation for the target.
>
> This patch series is based on the target-i386 flags rewrite that I
> just posted, but except for the two target-i386 patches, isn't really
> dependant on it.
>
> This patch series also cleans up target-ppc more ought to be present
> here, but I didn't feel up to breaking it out as a prerequisite.
>
>
> r~
>
>
> Richard Henderson (38):
>   tcg: Make 32-bit multiword operations optional for 64-bit hosts
>   tcg-i386: Always implement 32-bit multiword ops
>   tcg-sparc: Always implement 32-bit multiword ops
>   tcg: Add 64-bit multiword arithmetic operations
>   tcg: Add signed multiword multiplication operations
>   tcg: Implement a 64-bit to 32-bit extraction helper
>   tcg: Implement multiword multiply helpers
>   tcg: Implement multiword addition helpers
>   tcg-i386: Implement multiword arithmetic ops
>   tcg-arm: Implement muls2_i32
>   target-i386: Use mulu2 and muls2
>   target-i386: Use add2 to implement the ADX extension
>   tcg: Implement muls2 with mulu2
>   tcg: Apply life analysis to 64-bit multiword arithmetic ops
>   target-alpha: Use mulu2 for umulh insn
>   target-s390x: Use mulu2 for mlgr insn
>   target-arm: Use mul[us]2 in gen_mul[us]_i64_i32
>   target-arm: Use mul[us]2 and add2 in umlal et al
>   target-arm: Use add2 in gen_add_CC
>   target-arm: Implement adc_cc inline
>   target-arm: Implement sbc_cc inline
>   target-mips: Use mul[us]2 in [D]MULT[U] insns
>   target-cris: Use mul*2 in mul* insns
>   target-ppc: Use mul*2 in mulh* insns
>   target-ppc: Split out SO, OV, CA fields from XER
>   target-ppc: Use setcond in gen_op_cmp
>   target-ppc: Compute addition overflow without branches
>   target-ppc: Compute addition carry with setcond
>   target-ppc: Use add2 for carry generation
>   target-ppc: Implement neg in terms of subf
>   target-ppc: Compute arithmetic shift carry without branches
>   target-ppc: Compute mullwo without branches
>   target-sparc: Use official add2/sub2 interfaces for addx/subx
>   target-sparc: Use mul*2 for multiply
>   target-sh4: Use mul*2 for dmul*
>   target-unicore32: Use mul*2 for do_mult
>   target-xtensa: Use mul*2 for mul*hi
>   target-xtensa: Use add2/sub2 for mac
>
>  target-alpha/helper.h        |   1 -
>  target-alpha/int_helper.c    |   7 -
>  target-alpha/translate.c     |  20 +-
>  target-arm/helper.c          |   5 -
>  target-arm/helper.h          |   5 -
>  target-arm/op_helper.c       |  30 --
>  target-arm/translate.c       | 157 +++++++---
>  target-cris/translate.c      |  44 +--
>  target-i386/helper.h         |   4 -
>  target-i386/int_helper.c     |  40 ---
>  target-i386/translate.c      | 187 +++++-------
>  target-mips/helper.h         |   2 -
>  target-mips/op_helper.c      |  12 -
>  target-mips/translate.c      |  48 ++-
>  target-ppc/cpu.h             |  24 +-
>  target-ppc/helper.h          |   2 -
>  target-ppc/int_helper.c      |  56 +---
>  target-ppc/kvm.c             |   4 +-
>  target-ppc/machine.c         |   8 +-
>  target-ppc/translate.c       | 676 
> ++++++++++++++++++-------------------------
>  target-ppc/translate_init.c  |   4 +-
>  target-s390x/helper.h        |   1 -
>  target-s390x/int_helper.c    |   8 -
>  target-s390x/translate.c     |   3 +-
>  target-sh4/translate.c       |  30 +-
>  target-sparc/translate.c     |  87 +++---
>  target-unicore32/translate.c |  83 +-----
>  target-xtensa/translate.c    |  49 ++--
>  tcg-runtime.c                |  16 +-
>  tcg/README                   |  30 +-
>  tcg/arm/tcg-target.c         |   4 +
>  tcg/arm/tcg-target.h         |   1 +
>  tcg/hppa/tcg-target.h        |   1 +
>  tcg/i386/tcg-target.c        |  49 ++--
>  tcg/i386/tcg-target.h        |   8 +
>  tcg/ia64/tcg-target.h        |   8 +
>  tcg/mips/tcg-target.h        |   1 +
>  tcg/optimize.c               |   5 +-
>  tcg/ppc/tcg-target.h         |   1 +
>  tcg/ppc64/tcg-target.h       |   8 +
>  tcg/s390/tcg-target.h        |   8 +
>  tcg/sparc/tcg-target.c       |   6 +-
>  tcg/sparc/tcg-target.h       |   8 +
>  tcg/tcg-op.h                 | 228 +++++++++++++++
>  tcg/tcg-opc.h                |  12 +-
>  tcg/tcg-runtime.h            |   2 +
>  tcg/tcg.c                    |  28 +-
>  tcg/tcg.h                    |  10 +-
>  tcg/tci/tcg-target.h         |   9 +
>  49 files changed, 1013 insertions(+), 1027 deletions(-)
>
> --
> 1.8.1.2
>