go/src/cmd/compile/doc.go, branch fix-runtime-test-GOMAXPROCS

cmd/compile: document that nosplit directive is unsafe

2025-07-08T15:04:03Z

For #74478 Change-Id: I902e9a92cdacb5ad6dafa9896640f8196ba1d56a Reviewed-on: https://go-review.googlesource.com/c/go/+/686115 LUCI-TryBot-Result: Go LUCI Reviewed-by: Keith Randall Auto-Submit: Keith Randall Reviewed-by: Keith Randall Reviewed-by: Carlos Amedee

cmd/compile: document -embedcfg flag

2025-02-25T20:26:38Z

Fixes #71942 Change-Id: Ie7e795506a9c8781f0e0963012233a7ed1093855 Reviewed-on: https://go-review.googlesource.com/c/go/+/652475 LUCI-TryBot-Result: Go LUCI Auto-Submit: Ian Lance Taylor Reviewed-by: Michael Pratt Reviewed-by: Robert Griesemer

cmd/compile: improve compiler directive docs

2024-12-27T16:31:59Z

This section has gotten long enough that it deserves to be multiple sections. This also allows us to better structure information shared by subsets of directives. In particular, this enables a self-contained section on the wasm directives. Updates #66984. Change-Id: I062081d46c6b0aef7887fdaf9efae80f32ad4b21 Reviewed-on: https://go-review.googlesource.com/c/go/+/638881 LUCI-TryBot-Result: Go LUCI Auto-Submit: Austin Clements Reviewed-by: Cherry Mui

cmd/compile: document wasmexport directive, update permitted types for wasmimport

2024-12-05T19:35:30Z

For #65199, #66984. Change-Id: I9b651a00265fa7d3438d8a73ff04ddca7c4bed99 Reviewed-on: https://go-review.googlesource.com/c/go/+/633776 LUCI-TryBot-Result: Go LUCI Reviewed-by: Johan Brandhorst-Satzkorn Reviewed-by: Michael Knyszek

cmd/compile: document go:wasmimport directive

2024-01-11T16:53:50Z

Fixes #64972 Change-Id: I784a8728afbdef9736681d56f0a79c82a00609d6 GitHub-Last-Rev: bf158dbeaaa495dc258c590c7a21cf9e25e76ee7 GitHub-Pull-Request: golang/go#64991 Reviewed-on: https://go-review.googlesource.com/c/go/+/554455 Reviewed-by: Achille Roussel Reviewed-by: Johan Brandhorst-Satzkorn Reviewed-by: Cherry Mui Reviewed-by: Austin Clements TryBot-Result: Gopher Robot

src/cmd/compile: clarify //go:linkname documentation

2023-02-02T16:02:34Z

Change-Id: I0407950bfc84082683012944b2051e46dc682ba0 Reviewed-on: https://go-review.googlesource.com/c/go/+/463136 Reviewed-by: Ian Lance Taylor Run-TryBot: Alan Donovan TryBot-Result: Gopher Robot Reviewed-by: Cherry Mui

cmd/compile: revert "remove -installsuffix flag"

2022-07-18T18:00:52Z

This reverts CL 415236 (commit 558785a0a9df5fbb7e9617c05059cf2892884620). Reason for revert: Google's internal build system uses -installsuffix. Restoring -installsuffix for Go 1.19, and will try again for Go 1.20. Change-Id: Id6571f34f99f01bcf55e8e949e6fe7b6c1896134 Reviewed-on: https://go-review.googlesource.com/c/go/+/418036 TryBot-Result: Gopher Robot Auto-Submit: Matthew Dempsky Run-TryBot: Matthew Dempsky Reviewed-by: David Chase

cmd/compile: remove -installsuffix flag

2022-07-13T21:42:33Z

Obsoleted by -importcfg. cmd/link has a similar flag, but it seems to still be needed at least for misc/cgo/testshared.TestGopathShlib. I can't immediately tell why (has something to do with finding .so files), but it doesn't appear to possibly affect cmd/compile. Updates #51225. Change-Id: I80c6aef860bd162c010ad4a1a4f532b400cf901c Reviewed-on: https://go-review.googlesource.com/c/go/+/415236 Reviewed-by: David Chase Run-TryBot: Matthew Dempsky Reviewed-by: Russ Cox TryBot-Result: Gopher Robot

cmd/compile: remove -importmap flag

2022-07-13T21:42:13Z

Obsoleted by -importcfg, and no longer used by anything. Updates #51225. Change-Id: I49e646d2728347f862f90805051bb03dd4f4bed2 Reviewed-on: https://go-review.googlesource.com/c/go/+/415235 Reviewed-by: Russ Cox Run-TryBot: Matthew Dempsky TryBot-Result: Gopher Robot Reviewed-by: David Chase

cmd/compile: add //go:uintptrkeepalive

2022-04-21T18:06:38Z

This CL exports the existing ir.UintptrKeepAlive via the new directive //go:uintptrkeepalive. This makes the compiler insert KeepAlives for pointers converted to uintptr in calls, keeping them alive for the duration of the call. //go:uintptrkeepalive requires //go:nosplit, as stack growth can't handle these arguments (it cannot know which are pointers). We currently check this on the immediate function, but the actual restriction applies to all transitive calls. The existing //go:uintptrescapes is an extension of //go:uintptrkeepalive which forces pointers to escape to the heap, thus eliminating the stack growth issue. This pragma is limited to the standard library. For #51087 Change-Id: If9a19d484d3561b4219e5539b70c11a3cc09391e Reviewed-on: https://go-review.googlesource.com/c/go/+/388095 Run-TryBot: Michael Pratt Reviewed-by: Matthew Dempsky TryBot-Result: Gopher Robot