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

[Richard Henderson]

... 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(-)

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1.8.1.2