Hi Richard,
On 11/1/18 9:46 PM, Richard Henderson wrote:
From: Richard Henderson <r...@twiddle.net>
Changes since v2:
* Committed half of the patch set.
* Split inline TImode support from out-of-line patches.
* Removed the ST<OP> out-of-line functions, to match inline.
* Moved the out-of-line functions to assembly.
What I have not done, but is now a possibility, is to use a custom
calling convention for the out-of-line routines. I now only clobber
2 (or 3, for TImode) temp regs and set a return value.
I think this patch series would be great to have for GCC 10!
I've rebased them on current trunk and fixed up a couple of minor
conflicts in my local tree.
After that, I've encountered a couple of issues with building a compiler
with these patches.
I'll respond to the individual patches that I think cause the trouble.
Thanks,
Kyrill
r~
Richard Henderson (6):
aarch64: Extend %R for integer registers
aarch64: Implement TImode compare-and-swap
aarch64: Tidy aarch64_split_compare_and_swap
aarch64: Add out-of-line functions for LSE atomics
aarch64: Implement -matomic-ool
Enable -matomic-ool by default
gcc/config/aarch64/aarch64-protos.h | 13 +
gcc/common/config/aarch64/aarch64-common.c | 6 +-
gcc/config/aarch64/aarch64.c | 211 ++++++++++++----
.../atomic-comp-swap-release-acquire.c | 2 +-
.../gcc.target/aarch64/atomic-op-acq_rel.c | 2 +-
.../gcc.target/aarch64/atomic-op-acquire.c | 2 +-
.../gcc.target/aarch64/atomic-op-char.c | 2 +-
.../gcc.target/aarch64/atomic-op-consume.c | 2 +-
.../gcc.target/aarch64/atomic-op-imm.c | 2 +-
.../gcc.target/aarch64/atomic-op-int.c | 2 +-
.../gcc.target/aarch64/atomic-op-long.c | 2 +-
.../gcc.target/aarch64/atomic-op-relaxed.c | 2 +-
.../gcc.target/aarch64/atomic-op-release.c | 2 +-
.../gcc.target/aarch64/atomic-op-seq_cst.c | 2 +-
.../gcc.target/aarch64/atomic-op-short.c | 2 +-
.../aarch64/atomic_cmp_exchange_zero_reg_1.c | 2 +-
.../atomic_cmp_exchange_zero_strong_1.c | 2 +-
.../gcc.target/aarch64/sync-comp-swap.c | 2 +-
.../gcc.target/aarch64/sync-op-acquire.c | 2 +-
.../gcc.target/aarch64/sync-op-full.c | 2 +-
libgcc/config/aarch64/lse-init.c | 45 ++++
gcc/config/aarch64/aarch64.opt | 4 +
gcc/config/aarch64/atomics.md | 185 +++++++++++++-
gcc/config/aarch64/iterators.md | 3 +
gcc/doc/invoke.texi | 14 +-
libgcc/config.host | 4 +
libgcc/config/aarch64/lse.S | 238 ++++++++++++++++++
libgcc/config/aarch64/t-lse | 44 ++++
28 files changed, 717 insertions(+), 84 deletions(-)
create mode 100644 libgcc/config/aarch64/lse-init.c
create mode 100644 libgcc/config/aarch64/lse.S
create mode 100644 libgcc/config/aarch64/t-lse
--
2.17.2
