Re: [PATCH 0/3] [RISCV] Improve bswap for ZBB

[Kito Cheng via Gcc-patches]

Hi Andrew:

LGTM, Just checked what's clang gen, and saw LLVM already did the same
optimization, thanks for improving the code gen!


On Sun, Aug 21, 2022 at 1:15 AM apinski--- via Gcc-patches
 wrote:
>
> From: Andrew Pinski 
>
> Just some improvements for bswap and ZBB including a testsuite change that 
> will
> allow more testing to happen.
>
> Thanks,
> Andrew Pinski
>
>
> Andrew Pinski (3):
>   Fix PR 106600: __builtin_bswap32 is not hooked up for ZBB for 32bit
>   Fix PR 106601: __builtin_bswap16 code gen could be improved with ZBB
> enabled
>   Fix PR 106690: enable effective_target_bswap for RISCV targets with
> ZBB enabled by default
>
>  gcc/config/riscv/bitmanip.md  | 26 ++-
>  .../gcc.target/riscv/zbb_32_bswap-1.c | 11 
>  .../gcc.target/riscv/zbb_32_bswap-2.c | 12 +
>  gcc/testsuite/gcc.target/riscv/zbb_bswap-1.c  | 11 
>  gcc/testsuite/gcc.target/riscv/zbb_bswap-2.c  | 12 +
>  gcc/testsuite/lib/target-supports.exp |  7 +
>  6 files changed, 78 insertions(+), 1 deletion(-)
>  create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_32_bswap-1.c
>  create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_32_bswap-2.c
>  create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_bswap-1.c
>  create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_bswap-2.c
>
> --
> 2.17.1
>

[PATCH 0/3] [RISCV] Improve bswap for ZBB

[apinski--- via Gcc-patches]

From: Andrew Pinski 

Just some improvements for bswap and ZBB including a testsuite change that will
allow more testing to happen.

Thanks,
Andrew Pinski


Andrew Pinski (3):
  Fix PR 106600: __builtin_bswap32 is not hooked up for ZBB for 32bit
  Fix PR 106601: __builtin_bswap16 code gen could be improved with ZBB
enabled
  Fix PR 106690: enable effective_target_bswap for RISCV targets with
ZBB enabled by default

 gcc/config/riscv/bitmanip.md  | 26 ++-
 .../gcc.target/riscv/zbb_32_bswap-1.c | 11 
 .../gcc.target/riscv/zbb_32_bswap-2.c | 12 +
 gcc/testsuite/gcc.target/riscv/zbb_bswap-1.c  | 11 
 gcc/testsuite/gcc.target/riscv/zbb_bswap-2.c  | 12 +
 gcc/testsuite/lib/target-supports.exp |  7 +
 6 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_32_bswap-1.c
 create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_32_bswap-2.c
 create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_bswap-1.c
 create mode 100644 gcc/testsuite/gcc.target/riscv/zbb_bswap-2.c

-- 
2.17.1