Lu Yahan

build: add a flag v8_enable_simulator

29

The v8 simulator can help we run test for non-x64 backend on x64 machine. So I add a flag to build v8 smulator.

Fix build error about variable 'third' is uninitialized when used here

1

toolchain version ``` luyahan@plct-c7:~/source/highway$ clang -v clang version 17.0.2 (https://github.com/llvm/llvm-project.git b2417f51dbbd7435eb3aaf203de24de6754da50e) Target: riscv64-unknown-linux-gnu Thread model: posix InstalledDir: /home/luyahan/toolchain/llvm/bin Found candidate GCC installation: /home/luyahan/toolchain/llvm/bin/../lib/gcc/riscv64-unknown-linux-gnu/13.2.0 Selected GCC installation: /home/luyahan/toolchain/llvm/bin/../lib/gcc/riscv64-unknown-linux-gnu/13.2.0 ```

gdb/infrun.c:5300: internal-error

4

error log: ``` ../../gdb/infrun.c:5300: internal-error: int finish_step_over(execution_control_state*): Assertion `ecs->event_thread->control.trap_expected' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. ``` Gdb info: ``` GNU gdb (GDB)...

funct3 of OPIVV dones't show any number.

1

 It should show '0 0 0'

tools: fix riscv64 build failed

3

fix https://github.com/nodejs/node/issues/52678

ENH: Convert loop unary fp into highway

7

refer https://github.com/numpy/numpy/pull/24384, https://github.com/numpy/numpy/pull/24385 x64 Intel(R) Xeon(R) Gold 6278C CPU @ 2.60GHz [benchmark]( https://gist.github.com/luyahan/9a89262c295b224c3a2fbc9d1bd32f29) macos m1 [benchmark](https://gist.github.com/luyahan/cc3fe5aa9746e54c75e16b8b5463d700)