wasm-micro-runtime/core/iwasm/interpreter
Wenyong Huang 76be848ec3
Implement the segue optimization for LLVM AOT/JIT (#2230)
Segue is an optimization technology which uses x86 segment register to store
the WebAssembly linear memory base address, so as to remove most of the cost
of SFI (Software-based Fault Isolation) base addition and free up a general
purpose register, by this way it may:
- Improve the performance of JIT/AOT
- Reduce the footprint of JIT/AOT, the JIT/AOT code generated is smaller
- Reduce the compilation time of JIT/AOT

This PR uses the x86-64 GS segment register to apply the optimization, currently
it supports linux and linux-sgx platforms on x86-64 target. By default it is disabled,
developer can use the option below to enable it for wamrc and iwasm(with LLVM
JIT enabled):
```bash
wamrc --enable-segue=[<flags>] -o output_file wasm_file
iwasm --enable-segue=[<flags>] wasm_file [args...]
```
`flags` can be:
    i32.load, i64.load, f32.load, f64.load, v128.load,
    i32.store, i64.store, f32.store, f64.store, v128.store
Use comma to separate them, e.g. `--enable-segue=i32.load,i64.store`,
and `--enable-segue` means all flags are added.

Acknowledgement:
Many thanks to Intel Labs, UC San Diego and UT Austin teams for introducing this
technology and the great support and guidance!

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>
Co-authored-by: Vahldiek-oberwagner, Anjo Lucas <anjo.lucas.vahldiek-oberwagner@intel.com>
2023-05-26 10:13:33 +08:00
..
iwasm_interp.cmake Implement wasm mini loader and refine footprint of loader and runtime (#276) 2020-06-08 11:19:09 +08:00
SConscript add porting codes of rt-thread (#494) 2021-01-14 11:26:35 +08:00
wasm_interp_classic.c Implement the segue optimization for LLVM AOT/JIT (#2230) 2023-05-26 10:13:33 +08:00
wasm_interp_fast.c Implement the segue optimization for LLVM AOT/JIT (#2230) 2023-05-26 10:13:33 +08:00
wasm_interp.h Fix issue of restoring wasm operand stack (#1721) 2022-11-18 18:51:13 +08:00
wasm_loader.c Implement the segue optimization for LLVM AOT/JIT (#2230) 2023-05-26 10:13:33 +08:00
wasm_loader.h Fix build error when enable custom section without interpreter (#1229) 2022-06-15 18:14:39 +08:00
wasm_mini_loader.c Implement the segue optimization for LLVM AOT/JIT (#2230) 2023-05-26 10:13:33 +08:00
wasm_opcode.h Fix data races in atomic wait/notify and interp goto table (#1971) 2023-02-22 11:43:49 +08:00
wasm_runtime.c Refine aot compiler check suspend_flags and fix issue of multi-tier jit (#2111) 2023-04-07 06:47:24 +08:00
wasm_runtime.h Use pre-created exec_env for instantiation and module_malloc/free (#2047) 2023-03-23 19:19:47 +08:00
wasm.h Fix issue of Multi-tier JIT (#2056) 2023-03-25 11:15:05 +08:00