Update from v2:
1. Support -fexcess-precision=16 which will enable
FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 when backend supports _Float16.
2. Update ix86_get_excess_precision, so -fexcess-precision=standard
should not do anything different from -fexcess-precision=fast
regarding _Float16.
3. Avoiding macroization of HFmode patterns.
4. Allow (subreg:SI (reg:HF)).
5. Update documents corresponding exactly to the code changes in
the same patch.
6. According to 32bit abi, pass vector _Float16 by sse registers
for 32-bit mode, not stack.
Guo, Xuepeng (1):
AVX512FP16: Initial support for AVX512FP16 feature and scalar _Float16
instructions.
liuhongt (5):
Update hf soft-fp from glibc.
[i386] Enable _Float16 type for TARGET_SSE2 and above.
[i386] libgcc: Enable hfmode soft-sf/df/xf/tf extensions and
truncations.
Support -fexcess-precision=16 which will enable
FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 when backend supports _Float16.
AVX512FP16: Support vector init/broadcast/set/extract for FP16.
gcc/ada/gcc-interface/misc.c | 3 +
gcc/c-family/c-common.c | 6 +-
gcc/c-family/c-cppbuiltin.c | 6 +-
gcc/common.opt | 5 +-
gcc/common/config/i386/cpuinfo.h | 2 +
gcc/common/config/i386/i386-common.c | 26 +-
gcc/common/config/i386/i386-cpuinfo.h | 1 +
gcc/common/config/i386/i386-isas.h | 1 +
gcc/config.gcc | 2 +-
gcc/config/aarch64/aarch64.c | 1 +
gcc/config/arm/arm.c | 1 +
gcc/config/i386/avx512fp16intrin.h | 225 ++++++++++
gcc/config/i386/cpuid.h | 1 +
gcc/config/i386/i386-builtin-types.def | 7 +-
gcc/config/i386/i386-builtins.c | 23 +
gcc/config/i386/i386-c.c | 2 +
gcc/config/i386/i386-expand.c | 129 +++++-
gcc/config/i386/i386-isa.def | 1 +
gcc/config/i386/i386-modes.def | 13 +-
gcc/config/i386/i386-options.c | 4 +-
gcc/config/i386/i386.c | 243 +++++++++--
gcc/config/i386/i386.h | 29 +-
gcc/config/i386/i386.md | 291 ++++++++++++-
gcc/config/i386/i386.opt | 4 +
gcc/config/i386/immintrin.h | 4 +
gcc/config/i386/sse.md | 397 +++++++++++++-----
gcc/config/m68k/m68k.c | 2 +
gcc/config/s390/s390.c | 2 +
gcc/coretypes.h | 3 +-
gcc/doc/extend.texi | 22 +
gcc/doc/invoke.texi | 10 +-
gcc/doc/tm.texi | 14 +-
gcc/doc/tm.texi.in | 3 +
gcc/emit-rtl.c | 5 +
gcc/flag-types.h | 3 +-
gcc/fortran/options.c | 3 +
gcc/lto/lto-lang.c | 3 +
gcc/target.def | 11 +-
gcc/testsuite/g++.dg/other/i386-2.C | 2 +-
gcc/testsuite/g++.dg/other/i386-3.C | 2 +-
gcc/testsuite/g++.target/i386/float16-1.C | 8 +
gcc/testsuite/g++.target/i386/float16-2.C | 14 +
gcc/testsuite/g++.target/i386/float16-3.C | 10 +
gcc/testsuite/gcc.target/i386/avx-1.c | 2 +-
gcc/testsuite/gcc.target/i386/avx-2.c | 2 +-
gcc/testsuite/gcc.target/i386/avx512-check.h | 3 +
.../gcc.target/i386/avx512fp16-12a.c | 21 +
.../gcc.target/i386/avx512fp16-12b.c | 27 ++
gcc/testsuite/gcc.target/i386/float16-3a.c | 10 +
gcc/testsuite/gcc.target/i386/float16-3b.c | 10 +
gcc/testsuite/gcc.target/i386/float16-4a.c | 10 +
gcc/testsuite/gcc.target/i386/float16-4b.c | 10 +
gcc/testsuite/gcc.target/i386/float16-5.c | 12 +
gcc/testsuite/gcc.target/i386/float16-6.c | 8 +
gcc/testsuite/gcc.target/i386/funcspec-56.inc | 2 +
gcc/testsuite/gcc.target/i386/pr54855-12.c | 14 +
gcc/testsuite/gcc.target/i386/sse-13.c | 2 +-
gcc/testsuite/gcc.target/i386/sse-14.c | 2 +-
gcc/testsuite/gcc.target/i386/sse-22.c | 4 +-
gcc/testsuite/gcc.target/i386/sse-23.c | 2 +-
.../gcc.target/i386/sse2-float16-1.c | 8 +
.../gcc.target/i386/sse2-float16-2.c | 16 +
.../gcc.target/i386/sse2-float16-3.c | 12 +
gcc/testsuite/lib/target-supports.exp | 13 +-
gcc/tree.c | 3 +-
libgcc/config.host | 5 +-
libgcc/config/i386/32/sfp-machine.h | 1 +
libgcc/config/i386/32/t-softfp | 1 +
libgcc/config/i386/64/sfp-machine.h | 1 +
libgcc/config/i386/64/t-softfp | 1 +
libgcc/config/i386/sfp-machine.h | 1 +
libgcc/config/i386/t-softfp | 5 +
libgcc/soft-fp/eqhf2.c | 49 +++
libgcc/soft-fp/extendhfdf2.c | 53 +++
libgcc/soft-fp/extendhfsf2.c | 49 +++
libgcc/soft-fp/half.h | 1 +
libgcc/soft-fp/truncdfhf2.c | 52 +++
libgcc/soft-fp/truncsfhf2.c | 48 +++
78 files changed, 1781 insertions(+), 223 deletions(-)
create mode 100644 gcc/config/i386/avx512fp16intrin.h
create mode 100644 gcc/testsuite/g++.target/i386/float16-1.C
create mode 100644 gcc/testsuite/g++.target/i386/float16-2.C
create mode 100644 gcc/testsuite/g++.target/i386/float16-3.C
create mode 100644 gcc/testsuite/gcc.target/i386/avx512fp16-12a.c
create mode 100644 gcc/testsuite/gcc.target/i386/avx512fp16-12b.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-3a.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-3b.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-4a.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-4b.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-5.c
create mode 100644 gcc/testsuite/gcc.target/i386/float16-6.c
create mode 100644 gcc/testsuite/gcc.target/i386/pr54855-12.c
create mode 100644 gcc/testsuite/gcc.target/i386/sse2-float16-1.c
create mode 100644 gcc/testsuite/gcc.target/i386/sse2-float16-2.c
create mode 100644 gcc/testsuite/gcc.target/i386/sse2-float16-3.c
create mode 100644 libgcc/config/i386/64/t-softfp
create mode 100644 libgcc/soft-fp/eqhf2.c
create mode 100644 libgcc/soft-fp/extendhfdf2.c
create mode 100644 libgcc/soft-fp/extendhfsf2.c
create mode 100644 libgcc/soft-fp/truncdfhf2.c
create mode 100644 libgcc/soft-fp/truncsfhf2.c
--
2.27.0
