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| author | Keith Randall <khr@golang.org> | 2022-11-01 16:46:43 -0700 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2023-02-24 00:21:13 +0000 |
| commit | 21d82e6ac80fc2aea1eac9c8eec9afdd79cb5bdd (patch) | |
| tree | 293b975ed4dc782a0d68ab64dc6167b6d6486066 /src/cmd/link | |
| parent | f684f3dc434f9199ceee175c07d28e8b2b0f28dc (diff) | |
| download | go-21d82e6ac80fc2aea1eac9c8eec9afdd79cb5bdd.tar.xz | |
cmd/compile: batch write barrier calls
Have the write barrier call return a pointer to a buffer into which
the generated code records pointers that need write barrier treatment.
Change-Id: I7871764298e0aa1513de417010c8d46b296b199e
Reviewed-on: https://go-review.googlesource.com/c/go/+/447781
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Bypass: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/cmd/link')
| -rw-r--r-- | src/cmd/link/internal/wasm/asm.go | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/src/cmd/link/internal/wasm/asm.go b/src/cmd/link/internal/wasm/asm.go index 99018c8079..b5685701f2 100644 --- a/src/cmd/link/internal/wasm/asm.go +++ b/src/cmd/link/internal/wasm/asm.go @@ -55,19 +55,27 @@ type wasmFuncType struct { } var wasmFuncTypes = map[string]*wasmFuncType{ - "_rt0_wasm_js": {Params: []byte{}}, // - "wasm_export_run": {Params: []byte{I32, I32}}, // argc, argv - "wasm_export_resume": {Params: []byte{}}, // - "wasm_export_getsp": {Results: []byte{I32}}, // sp - "wasm_pc_f_loop": {Params: []byte{}}, // - "runtime.wasmDiv": {Params: []byte{I64, I64}, Results: []byte{I64}}, // x, y -> x/y - "runtime.wasmTruncS": {Params: []byte{F64}, Results: []byte{I64}}, // x -> int(x) - "runtime.wasmTruncU": {Params: []byte{F64}, Results: []byte{I64}}, // x -> uint(x) - "runtime.gcWriteBarrier": {Params: []byte{I64, I64}}, // ptr, val - "cmpbody": {Params: []byte{I64, I64, I64, I64}, Results: []byte{I64}}, // a, alen, b, blen -> -1/0/1 - "memeqbody": {Params: []byte{I64, I64, I64}, Results: []byte{I64}}, // a, b, len -> 0/1 - "memcmp": {Params: []byte{I32, I32, I32}, Results: []byte{I32}}, // a, b, len -> <0/0/>0 - "memchr": {Params: []byte{I32, I32, I32}, Results: []byte{I32}}, // s, c, len -> index + "_rt0_wasm_js": {Params: []byte{}}, // + "wasm_export_run": {Params: []byte{I32, I32}}, // argc, argv + "wasm_export_resume": {Params: []byte{}}, // + "wasm_export_getsp": {Results: []byte{I32}}, // sp + "wasm_pc_f_loop": {Params: []byte{}}, // + "runtime.wasmDiv": {Params: []byte{I64, I64}, Results: []byte{I64}}, // x, y -> x/y + "runtime.wasmTruncS": {Params: []byte{F64}, Results: []byte{I64}}, // x -> int(x) + "runtime.wasmTruncU": {Params: []byte{F64}, Results: []byte{I64}}, // x -> uint(x) + "gcWriteBarrier": {Params: []byte{I64}, Results: []byte{I64}}, // #bytes -> bufptr + "runtime.gcWriteBarrier1": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier2": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier3": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier4": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier5": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier6": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier7": {Results: []byte{I64}}, // -> bufptr + "runtime.gcWriteBarrier8": {Results: []byte{I64}}, // -> bufptr + "cmpbody": {Params: []byte{I64, I64, I64, I64}, Results: []byte{I64}}, // a, alen, b, blen -> -1/0/1 + "memeqbody": {Params: []byte{I64, I64, I64}, Results: []byte{I64}}, // a, b, len -> 0/1 + "memcmp": {Params: []byte{I32, I32, I32}, Results: []byte{I32}}, // a, b, len -> <0/0/>0 + "memchr": {Params: []byte{I32, I32, I32}, Results: []byte{I32}}, // s, c, len -> index } func assignAddress(ldr *loader.Loader, sect *sym.Section, n int, s loader.Sym, va uint64, isTramp bool) (*sym.Section, int, uint64) { |