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* [PATCH 00/72] Convert floatx80 and float128 to FloatParts
@ 2021-05-08  1:46 Richard Henderson
  2021-05-08  1:46 ` [PATCH 01/72] qemu/host-utils: Use __builtin_bitreverseN Richard Henderson
                   ` (76 more replies)
  0 siblings, 77 replies; 151+ messages in thread
From: Richard Henderson @ 2021-05-08  1:46 UTC (permalink / raw)
  To: qemu-devel; +Cc: alex.bennee, david

Reorg everything using QEMU_GENERIC and multiple inclusion to
reduce the amount of code duplication between the formats.

The use of QEMU_GENERIC means that we need to use pointers instead
of structures, which means that even the smaller float formats
need rearranging.

I've carried it through to completion within fpu/, so that we don't
have (much) of the legacy code remaining.  There is some floatx80
stuff in target/m68k and target/i386 that's still hanging around.


Alex Bennée (1):
  tests/fp: add quad support to the benchmark utility

Richard Henderson (71):
  qemu/host-utils: Use __builtin_bitreverseN
  qemu/host-utils: Add wrappers for overflow builtins
  qemu/host-utils: Add wrappers for carry builtins
  accel/tcg: Use add/sub overflow routines in tcg-runtime-gvec.c
  softfloat: Move the binary point to the msb
  softfloat: Inline float_raise
  softfloat: Use float_raise in more places
  softfloat: Tidy a * b + inf return
  softfloat: Add float_cmask and constants
  softfloat: Use return_nan in float_to_float
  softfloat: fix return_nan vs default_nan_mode
  target/mips: Set set_default_nan_mode with set_snan_bit_is_one
  softfloat: Do not produce a default_nan from parts_silence_nan
  softfloat: Rename FloatParts to FloatParts64
  softfloat: Move type-specific pack/unpack routines
  softfloat: Use pointers with parts_default_nan
  softfloat: Use pointers with unpack_raw
  softfloat: Use pointers with ftype_unpack_raw
  softfloat: Use pointers with pack_raw
  softfloat: Use pointers with ftype_pack_raw
  softfloat: Use pointers with ftype_unpack_canonical
  softfloat: Use pointers with ftype_round_pack_canonical
  softfloat: Use pointers with parts_silence_nan
  softfloat: Rearrange FloatParts64
  softfloat: Convert float128_silence_nan to parts
  softfloat: Convert float128_default_nan to parts
  softfloat: Move return_nan to softfloat-parts.c.inc
  softfloat: Move pick_nan to softfloat-parts.c.inc
  softfloat: Move pick_nan_muladd to softfloat-parts.c.inc
  softfloat: Move sf_canonicalize to softfloat-parts.c.inc
  softfloat: Move round_canonical to softfloat-parts.c.inc
  softfloat: Use uadd64_carry, usub64_borrow in softfloat-macros.h
  softfloat: Move addsub_floats to softfloat-parts.c.inc
  softfloat: Implement float128_add/sub via parts
  softfloat: Move mul_floats to softfloat-parts.c.inc
  softfloat: Move muladd_floats to softfloat-parts.c.inc
  softfloat: Use mulu64 for mul64To128
  softfloat: Use add192 in mul128To256
  softfloat: Tidy mul128By64To192
  softfloat: Introduce sh[lr]_double primitives
  softfloat: Move div_floats to softfloat-parts.c.inc
  softfloat: Split float_to_float
  softfloat: Convert float-to-float conversions with float128
  softfloat: Move round_to_int to softfloat-parts.c.inc
  softfloat: Move rount_to_int_and_pack to softfloat-parts.c.inc
  softfloat: Move rount_to_uint_and_pack to softfloat-parts.c.inc
  softfloat: Move int_to_float to softfloat-parts.c.inc
  softfloat: Move uint_to_float to softfloat-parts.c.inc
  softfloat: Move minmax_flags to softfloat-parts.c.inc
  softfloat: Move compare_floats to softfloat-parts.c.inc
  softfloat: Move scalbn_decomposed to softfloat-parts.c.inc
  softfloat: Move sqrt_float to softfloat-parts.c.inc
  softfloat: Split out parts_uncanon_normal
  softfloat: Reduce FloatFmt
  softfloat: Introduce Floatx80RoundPrec
  softfloat: Adjust parts_uncanon_normal for floatx80
  tests/fp/fp-test: Reverse order of floatx80 precision tests
  softfloat: Convert floatx80_add/sub to FloatParts
  softfloat: Convert floatx80_mul to FloatParts
  softfloat: Convert floatx80_div to FloatParts
  softfloat: Convert floatx80_sqrt to FloatParts
  softfloat: Convert floatx80_round to FloatParts
  softfloat: Convert floatx80_round_to_int to FloatParts
  softfloat: Convert integer to floatx80 to FloatParts
  softfloat: Convert floatx80 float conversions to FloatParts
  softfloat: Convert floatx80 to integer to FloatParts
  softfloat: Convert floatx80_scalbn to FloatParts
  softfloat: Convert floatx80 compare to FloatParts
  softfloat: Convert float32_exp2 to FloatParts
  softfloat: Move floatN_log2 to softfloat-parts.c.inc
  softfloat: Convert modrem operations to FloatParts

 include/fpu/softfloat-helpers.h  |    5 +-
 include/fpu/softfloat-macros.h   |  247 +-
 include/fpu/softfloat-types.h    |   10 +-
 include/fpu/softfloat.h          |   11 +-
 include/qemu/host-utils.h        |  291 ++
 target/mips/fpu_helper.h         |   10 +-
 accel/tcg/tcg-runtime-gvec.c     |   36 +-
 fpu/softfloat.c                  | 7760 ++++++++++--------------------
 linux-user/arm/nwfpe/fpa11.c     |   41 +-
 target/i386/tcg/fpu_helper.c     |   79 +-
 target/m68k/fpu_helper.c         |   50 +-
 target/m68k/softfloat.c          |   90 +-
 tests/fp/fp-bench.c              |   88 +-
 tests/fp/fp-test-log2.c          |  118 +
 tests/fp/fp-test.c               |   11 +-
 fpu/softfloat-parts-addsub.c.inc |   62 +
 fpu/softfloat-parts.c.inc        | 1480 ++++++
 fpu/softfloat-specialize.c.inc   |  424 +-
 tests/fp/wrap.c.inc              |   12 +
 tests/fp/meson.build             |   11 +
 20 files changed, 4886 insertions(+), 5950 deletions(-)
 create mode 100644 tests/fp/fp-test-log2.c
 create mode 100644 fpu/softfloat-parts-addsub.c.inc
 create mode 100644 fpu/softfloat-parts.c.inc


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