[Qemu-devel] [PATCH 0/5] Use tcg_malloc more

[Richard Henderson <rth@twiddle.net>]

We have several statically sized arrays attached to the TCGContext
structure.  For the most part, these arrays are sized unreasonably
large -- there are rarely more than 3 labels in a TB, or more than
a few dozen memory operations.

We already have tcg_malloc, which manages a pooled allocator attached
to the TCGContext.  We can easily use this to dynamically allocate
both of the structures mentioned above.  This both minimizes the memory
that we do use, and also eliminates some arbitrary limits.

In order to convert TCGLabel, we need to stop referencing them via
indicies in an array and instead manipulate them via pointers.  This
is mechanical but pervasive, touching all front ends and all back ends.


r~


Richard Henderson (5):
  tcg: Use tcg_malloc to allocate TCGLabelQemuLdst
  tcg-ia64: Use tcg_malloc to allocate TCGLabelQemuLdst
  tcg: Change translator-side labels to a pointer
  tcg: Change generator-side labels to a pointer
  tcg: Use tcg_malloc to allocate TCGLabel

 include/exec/gen-icount.h     |   4 +-
 target-alpha/translate.c      |   4 +-
 target-arm/translate-a64.c    |  26 ++++-----
 target-arm/translate.c        |   8 +--
 target-arm/translate.h        |   4 +-
 target-cris/translate.c       |  23 +++-----
 target-cris/translate_v10.c   |   6 +--
 target-i386/translate.c       |  33 ++++++------
 target-lm32/translate.c       |  20 ++++---
 target-m68k/translate.c       |   8 +--
 target-microblaze/translate.c |  12 ++---
 target-mips/translate.c       |  94 ++++++++++++++++----------------
 target-moxie/translate.c      |   2 +-
 target-openrisc/translate.c   |  34 ++++++------
 target-ppc/translate.c        | 123 ++++++++++++++++++++----------------------
 target-s390x/translate.c      |   7 +--
 target-sh4/translate.c        |  22 ++++----
 target-sparc/translate.c      |  11 ++--
 target-tricore/translate.c    |   6 +--
 target-unicore32/translate.c  |   6 +--
 target-xtensa/translate.c     |  18 +++----
 tcg/aarch64/tcg-target.c      |  15 +++---
 tcg/arm/tcg-target.c          |  14 ++---
 tcg/i386/tcg-target.c         |  72 ++++++++++++-------------
 tcg/ia64/tcg-target.c         |  35 ++++++------
 tcg/mips/tcg-target.c         |  17 +++---
 tcg/ppc/tcg-target.c          |  20 ++++---
 tcg/s390/tcg-target.c         |  31 +++++------
 tcg/sparc/tcg-target.c        |  22 ++++----
 tcg/tcg-be-ldst.h             |  26 +++++----
 tcg/tcg-op.c                  |  25 ++++-----
 tcg/tcg-op.h                  |  19 +++----
 tcg/tcg.c                     |  45 ++++++++--------
 tcg/tcg.h                     |  34 ++++++++++--
 tcg/tci/tcg-target.c          |  13 +++--
 35 files changed, 417 insertions(+), 442 deletions(-)

-- 
2.1.0