mirror of https://github.com/golang/go.git
6a801d3082
When inlining function calls, we rewrite the position information on all of the nodes to keep track of the inlining context. This is necessary so that at runtime, we can synthesize additional stack frames so that the inlining is transparent to the user. However, for function literals, we *don't* want to apply this rewriting to the underlying function. Because within the function literal (when it's not itself inlined), the inlining context (if any) will have already be available at the caller PC instead. Unified IR was already getting this right in the case of user-written statements within the function literal, which is what the unit test for #46234 tested. However, it was still using inline-adjusted positions for the function declaration and its parameters, which occasionally end up getting used for generated code (e.g., loading captured values from the closure record). I've manually verified that this fixes the hang in https://go.dev/play/p/avQ0qgRzOgt, and spot-checked the -d=pctab=pctoinline output for kube-apiserver and kubelet and they seem better. However, I'm still working on a more robust test for this (hence "Updates" not "Fixes") and internal assertions to verify that we're emitting correct inline trees. In particular, there are still other cases (even in the non-unified frontend) where we're producing corrupt (but at least acyclic) inline trees. Updates #54625. Change-Id: Iacfd2e1eb06ae8dc299c0679f377461d3d46c15a Reviewed-on: https://go-review.googlesource.com/c/go/+/425395 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Auto-Submit: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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| abi | ||
| alias3.dir | ||
| asmhdr.dir | ||
| bench | ||
| chan | ||
| closure3.dir | ||
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| codegen | ||
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| syntax | ||
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| 64bit.go | ||
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| README.md | ||
| alg.go | ||
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| inline.go | ||
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| literal.go | ||
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| live.go | ||
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| nosplit.go | ||
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| prove.go | ||
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| sizeof.go | ||
| slice3.go | ||
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| slicecap.go | ||
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| solitaire.go | ||
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| strength.go | ||
| string_lit.go | ||
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| tinyfin.go | ||
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| turing.go | ||
| typecheck.go | ||
| typecheckloop.go | ||
| typeswitch.go | ||
| typeswitch1.go | ||
| typeswitch2.go | ||
| typeswitch2b.go | ||
| typeswitch3.go | ||
| uintptrescapes.go | ||
| uintptrescapes2.go | ||
| uintptrescapes3.go | ||
| uintptrkeepalive.go | ||
| undef.go | ||
| unsafebuiltins.go | ||
| used.go | ||
| utf.go | ||
| varerr.go | ||
| varinit.go | ||
| winbatch.go | ||
| writebarrier.go | ||
| zerodivide.go | ||
README.md
The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.
To run just these tests, execute:
../bin/go run run.go
To run just tests from specified files in this directory, execute:
../bin/go run run.go -- file1.go file2.go ...
Standard library tests should be written as regular Go tests in the appropriate package.
The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:
- it is most naturally expressed using the test runner; or
- it is also applicable to
gccgoand other Go tool chains.