On 11/16/23 22:12, Li Xu wrote:
From: xuli<xu...@eswincomputing.com>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112537
-mmemcpy-strategy=[auto|libcall|scalar|vector]
auto: Current status, use scalar or vector instructions.
libcall: Always use a library call.
scalar: Only use scalar instructions.
vector: Only use vector instructions.
PR target/112537
gcc/ChangeLog:
* config/riscv/riscv-opts.h (enum riscv_stringop_strategy_enum):
Strategy enum.
* config/riscv/riscv-string.cc (riscv_expand_block_move): Disabled
based on options.
(expand_block_move): Ditto.
* config/riscv/riscv.opt: Add -mmemcpy-strategy=.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/cpymem-strategy-1.c: New test.
* gcc.target/riscv/rvv/base/cpymem-strategy-2.c: New test.
* gcc.target/riscv/rvv/base/cpymem-strategy-3.c: New test.
* gcc.target/riscv/rvv/base/cpymem-strategy-4.c: New test.
* gcc.target/riscv/rvv/base/cpymem-strategy-5.c: New test.
* gcc.target/riscv/rvv/base/cpymem-strategy.h: New test.
This is OK assuming you have tested it to ensure there aren't any
regressions in the testsuite. I don't expect problems, but let's be
sure :-)
Thanks,
jeff
