Make more use of RecvParams and RecvParamsResults helper methods.
Also, correct misuse of Go spec terminology ("return" is a statement;
"result" is the class of parameters that appear in a function type).
Change-Id: I94807a747c494c9daa5441da7d9e3aea77aae33b
Reviewed-on: https://go-review.googlesource.com/c/go/+/521395
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
This CL removes a lot of the redundant methods for accessing struct
fields and signature parameters. In particular, users never have to
write ".Slice()" or ".FieldSlice()" anymore; the exported APIs just do
what you want.
Further internal refactorings to follow.
Change-Id: I45212f6772fe16aad39d0e68b82d71b0796e5639
Reviewed-on: https://go-review.googlesource.com/c/go/+/521295
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There's no need for distinct hmap and hiter types for each map.
Shaves 9kB off cmd/go binary size.
Change-Id: I7bc3b2d8ec82e7fcd78c1cb17733ebd8b615990a
Reviewed-on: https://go-review.googlesource.com/c/go/+/521615
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This is supposed to be an internal type within package types. At least
for now, users of the types package should stick to the types.Type
APIs as much as possible.
This CL also unexports FuncType and a few others to prevent
backsliding.
Change-Id: I053fc115a5e6a57c148c8149851a45114756072f
Reviewed-on: https://go-review.googlesource.com/c/go/+/521255
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Reviewed-by: Austin Clements <austin@google.com>
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This CL refactors common patterns for constructing field and method
selector expressions. Notably, XDotField and XDotMethod are now the
only two functions where a SelecterExpr with OXDOT is constructed.
Change-Id: I4c087225d8b295c4a6a92281ffcbcabafe2dc94d
Reviewed-on: https://go-review.googlesource.com/c/go/+/520979
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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This CL refactors typecheck.DeclFunc to require the caller to have
already constructed the ir.Func and signature type using ir.NewFunc
and types.NewSignature, and simplifies typecheck.DeclFunc to simply
return the slices of param and results ONAMEs.
typecheck.DeclFunc was the last reason that ir.Field still exists, so
this CL also gets rid of that.
Change-Id: Ib398420bac2fd135a235810b8af1635fa754965c
Reviewed-on: https://go-review.googlesource.com/c/go/+/520977
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This CL reorganizes the top-level functions for handling package-level
declarations, runtime type descriptors, and SSA compilation to work in
a loop. This generalizes the loop that previously existed in dumpdata.
Change-Id: I0e51e60f6ef9e7f96a4a3ccd5801f7baf83eba9a
Reviewed-on: https://go-review.googlesource.com/c/go/+/520611
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Except for a single call site in escape analysis, every use of
ir.AsNode involves a types.Object that's known to contain
an *ir.Name. Asserting directly to that type makes the code simpler
and more efficient.
The one use in escape analysis is extended to handle nil correctly
without it.
Change-Id: I694ae516903e541341d82c2f65a9155e4b0a9809
Reviewed-on: https://go-review.googlesource.com/c/go/+/520775
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
The last use of this was removed in go.dev/cl/518757.
Change-Id: I41ddc9601bfa7e553b83c4c5a055104b2044d5d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/520610
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Steps towards eliminating implicit dependencies on base.Pos and
ir.CurFunc. Mechanical CL produced with gofmt -r.
Change-Id: I070015513cb955cbe87f9a148d81db8c0d4b0dc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/520605
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Now that package initialization ordering is handled by types2 instead
of pkginit, we can get rid of this special case.
Change-Id: I4b94df02813b662498ae7d2e829119e3bb932d6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/520604
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This CL moves more common Func-setup logic into ir.NewFunc. In
particular, it now handles constructing the Name and wiring them
together, setting the Typecheck bit, and setting Sym.Func.
Relatedly, this CL also extends typecheck.DeclFunc to append the
function to typecheck.Target.Funcs, so that callers no longer need to
do this.
Change-Id: Ifa0aded8df0517188eb295d0dccc107af85f1e8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/520338
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This CL extends ir.NewClosureFunc to take the signature type argument,
and to handle naming the closure and adding it to typecheck.Target.
It also removes the code for typechecking OCLOSURE and ODCLFUNC nodes,
by having them always constructed as typechecked. ODCLFUNC node
construction will be further simplified in the followup CL.
Change-Id: Iabde4557d33051ee470a3bc4fd49599490024cba
Reviewed-on: https://go-review.googlesource.com/c/go/+/520337
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Remove these in favor of the explicit *At variants that take a
src.XPos.
Change-Id: I2c095b75e43b58fe31e3e1b15c811a66ac5a0f83
Reviewed-on: https://go-review.googlesource.com/c/go/+/518956
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
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Instead of having the inliner specially recognize that eq/hash
functions can't be inlined, change the geneq and genhash to mark them
as //go:noinline.
This is a prereq for a subsequent CL that will move more logic for
handling rtypes from package types to package reflectdata.
Change-Id: I091a9ededcc083fe8305cf5443a9af7d3a9053b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/518955
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Run-TryBot: Matthew Dempsky <mdempsky@google.com>
This CL removes a bunch of obsolete code, which made the overall
possible data flow of the compiler much harder to understand. In
particular, it:
1. Removes typecheck.Declare by inlining its only two remaining uses,
and simplifying them down to just the couple of relevant assignments
for each remaining caller.
2. Renames ir.Package.{Asms,Exports} to {AsmHdrDecls,PluginExports},
respectively, to better describe what they're used for. In particular,
PluginExports now actually holds only the subset of Exports that used
to be confusingly called "ptabs" in package reflectdata.
3. Renames reflectdata.WriteTabs to reflectdata.WritePluginTable, to
make it clearer what it does.
4. Removes the consistency checks on len(Exports) and len(ptabs),
since now it's plainly obvious that only the unified importer ever
appends to PluginExports.
Change-Id: Iedc9d0a4e7648de4e734f7e3e7df302580fed542
Reviewed-on: https://go-review.googlesource.com/c/go/+/518757
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Decls used to contain initializer statement for package-level
variables, but now it only contains ir.Funcs. So we might as well
rename it to Funcs and tighten its type to []*ir.Func.
Similarly, Externs always contains *ir.Names, so its type can be
constrained too.
Change-Id: I85b833e2f83d9d3559ab0ef8ab5d8324f4bc37b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/517855
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Replace reflect.PtrTo with reflect.PointerTo.
Fixes#59599
Change-Id: I49407193e2050543ef983cd637703acc682d9f51
Change-Id: I49407193e2050543ef983cd637703acc682d9f51
GitHub-Last-Rev: 7bc9ccf1dc
GitHub-Pull-Request: golang/go#61440
Reviewed-on: https://go-review.googlesource.com/c/go/+/511035
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Change-Id: I8ae86200675dcad0f1d4c9924459d8196da9740f
Reviewed-on: https://go-review.googlesource.com/c/go/+/501755
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Retrying the original CL with a small modification. The original CL
did not handle the case of reading an itab out of a dictionary
correctly. When we read an itab out of a dictionary, we must treat
the type inside that itab as maybe being put in an interface.
Original CL: 486895
Revert CL: 490156
Change-Id: Id2dc1699d184cd8c63dac83986a70b60b4e6cbd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/491495
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This touches a lot of files, which is bad, but it is also good,
since there's N copies of this information commoned into 1.
The new files in internal/abi are copied from the end of the stack;
ultimately this will all end up being used.
Change-Id: Ia252c0055aaa72ca569411ef9f9e96e3d610889e
Reviewed-on: https://go-review.googlesource.com/c/go/+/462995
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This reverts CL 486895.
Reason for revert: This breaks internal tests at Google, see b/280035614.
Change-Id: I48772a44f5f6070a7f06b5704e9f9aa272b5f978
Reviewed-on: https://go-review.googlesource.com/c/go/+/490156
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This modifies the loopvar change to be tied to the
package if it is specified that way, and preserves
the change across inlining.
Down the road, this will be triggered (and flow correctly)
if the changed semantics are tied to Go version specified
in go.mod (or rather, for the compiler, by the specified
version for compilation).
Includes tests.
Change-Id: If54e8b6dd23273b86be5ba47838c90d38af9bd1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/463595
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Stop depending on base.Pos for these.
Change-Id: I58dea44f8141eb37b59a6e9f7db0c6baa516ad93
Reviewed-on: https://go-review.googlesource.com/c/go/+/472296
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This global variable was used by the old frontend to decide whether to
perform escape analysis during method wrapper generation.
The old frontend is gone now, the variable is not used anywhere else.
Change-Id: I448f2761ea608a9a2ec39a9920fcf7aa12d98799
Reviewed-on: https://go-review.googlesource.com/c/go/+/466278
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Same as CL 436436, but for hashfor.
However, this passes toolstash-check, because the order of compiling
functions do not change.
Change-Id: Icc7d042e9c28b0fe4bb40a2b98b7f60cf3549bd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/436961
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Those functions are defined in package runtime already, so just use them
instead of creating ONAME nodes with nil Func.
Change-Id: If29814a5254793c578c15b70f9c194b7414911d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/436959
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So we don't generate ONAME node with nil Func.
Do not pass toolstash-check because the CL changes the order of
compiling functions.
Change-Id: Ib967328f36b8c59a5525445667103c0c80ccdc82
Reviewed-on: https://go-review.googlesource.com/c/go/+/436436
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So next CL can use it for generating equal func during walk compare.
Passes toolstash-check.
Change-Id: I76545c1d471eb496be352908db1b05feae83fc33
Reviewed-on: https://go-review.googlesource.com/c/go/+/436435
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Sym.Def used to be used for symbol resolution during the
old (pre-types2) typechecker. But since moving to types2-based IR
construction, we haven't really had a need for Sym.Def to ever refer
to anything but the package-scope definition, because types2 handles
symbol resolution for us.
This CL finally removes the Markdcl/Pushdcl/Popdcl functions that have
been a recurring source of issues in the past.
Change-Id: I2b012a0f17203efdd724ebd1e9314bd128cc2d61
Reviewed-on: https://go-review.googlesource.com/c/go/+/458625
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This CL removes a handful of features that were only needed for the
pre-unified frontends.
In particular, Type.Pkg was a hack for iexport so that
go/types.Var.Pkg could be precisely populated for struct fields and
signature parameters by gcimporter, but it's no longer necessary with
the unified export data format because we now write export data
directly from types2-supplied type descriptors.
Several other features (e.g., OrigType, implicit interfaces, type
parameters on signatures) are no longer relevant to the unified
frontend, because it only uses types1 to represent instantiated
generic types.
Updates #57410.
Change-Id: I84fd1da5e0b65d2ab91d244a7bb593821ee916e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/458622
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These were used by the nounified frontend for representing
uninstantiated generic types; however, the unified frontend only needs
types1 to represent instantiated types.
Updates #57410.
Change-Id: Iac417fbf2b86f4e08bd7fdd26ae8ed17395ce833
Reviewed-on: https://go-review.googlesource.com/c/go/+/458621
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Reviewed-by: Keith Randall <khr@google.com>
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This CL removes most of the code specific to the nounified
frontend. To simplify review, it's a strict remove-only CL.
Updates #57410.
Change-Id: Ic3196570aa4286618c1d5e7fd0d0e6601a18195b
Reviewed-on: https://go-review.googlesource.com/c/go/+/458620
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Reviewed-by: Keith Randall <khr@golang.org>
This CL removes the GOEXPERIMENT=nounified knob, and any conditional
statements that depend on that knob. Further CLs to remove unreachable
code follow this one.
Updates #57410.
Change-Id: I39c147e1a83601c73f8316a001705778fee64a91
Reviewed-on: https://go-review.googlesource.com/c/go/+/458615
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Previously TryBot-tested with bucket bits = 4.
Also tested locally with bucket bits = 5.
This makes it much easier to change the size of map
buckets, and hopefully provides pointers to all the
code that in some way depends on details of map layout.
Change-Id: I9f6669d1eadd02f182d0bc3f959dc5f385fa1683
Reviewed-on: https://go-review.googlesource.com/c/go/+/462115
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Reviewed-by: Austin Clements <austin@google.com>
We already emit types for any and func(error) string in runtime.a
but unlike the other pre-emitted types, we don't then exclude them
from being emitted in other packages. Fix that.
Also add slices of non-func types that we already emit.
Saves 0.3% of .a files in std cmd deps, computed by adding sizes from:
ls -l $(go list -export -f '{{.Export}}' -deps std cmd
The effect is small and not worth doing on its own.
The real improvement is making “what to write always in runtime”
and “what not to write in other packages” more obviously aligned.
Change-Id: Ie5cb5fd7e5a3025d2776d9b4cece775fdf92d3b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/450135
Reviewed-by: Keith Randall <khr@golang.org>
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Reviewed-by: Keith Randall <khr@google.com>
Since pgo is a new package, it is reasonably straightforward to
encapsulate its state into a non-global object that we pass around,
which will help keep it isolated.
There are no functional changes in this CL, just packaging up the
globals into a new object.
There are two major pieces of cleanup remaining:
1. reflectdata and noder have separate InlineCalls calls for method
wrappers. The Profile is not plumbed there yet, but this is not a
regression as the globals were previously set only right around the
main inlining pass in gc.Main.
2. pgo.ListOfHotCallSites is still global, as it will require more work
to clean up. It is effectively a local variable in InlinePackage,
except that it assumes that InlineCalls is immediately preceded by a
CanInline call for the same function. This is not necessarily true
due to the recursive nature of CanInline. This also means that some
InlineCalls calls may be missing the list of hot callsites right now.
For #55022.
Change-Id: Ic1fe41f73df96861c65f8bfeecff89862b367290
Reviewed-on: https://go-review.googlesource.com/c/go/+/446303
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
This CL changes the heuristic used to determine whether we can inline a
struct equality check or if we must generate a function and call that
function for equality.
The old method was to count struct fields, but this can lead to poor
in lining decisions. We should really be determining the cost of the
equality check and use that to determine if we should inline or generate
a function.
The new benchmark provided in this CL returns the following when compared
against tip:
```
name old time/op new time/op delta
EqStruct-32 2.46ns ± 4% 0.25ns ±10% -89.72% (p=0.000 n=39+39)
```
Fixes#38494
Change-Id: Ie06b80a2b2a03a3fd0978bcaf7715f9afb66e0ab
GitHub-Last-Rev: e9a18d9389
GitHub-Pull-Request: golang/go#53326
Reviewed-on: https://go-review.googlesource.com/c/go/+/411674
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
CL 327871 changes methodWrapper to always perform inlining after global
escape analysis. However, inlining the method may reveal closures, which
require walking all function bodies to decide whether to capture free
variables by value or by ref.
To fix it, just not doing inline if the method contains any closures.
Fixes#53702
Change-Id: I4b0255b86257cc6fe7e5fafbc545cc5cff9113e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/426334
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
[This is a retry of CL 407036 + its revert CL 422394. The only
content change is the 1-line change in cmd/internal/obj/objfile.go.]
Read the bitmaps one uintptr at a time instead of one byte at a time.
Performance so far:
Allocation heavy, no retention: ~30% faster in heapBitsSetType
Scan heavy, ~no allocation: ~even in scanobject
Change-Id: I04d899e1dbd23e989e9f552cdc1880318779c14c
Reviewed-on: https://go-review.googlesource.com/c/go/+/422635
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
When a generic interface method is used, we use a special
relocation R_USEGENERICIFACEMETHOD to tell the linker the name of
the generic interface method, so it can keep methods with that
name live. The relocation references a symbol whose content is the
name. Currently this is a string symbol, which is content
addessable and may have trailing zero bytes (for better
deduplication). The trailing bytes can cause confusion for the
linker. This symbol doesn't need to be in the final binary and
doesn't need to be deduplicated with other symbol. So we don't use
content addressable symbol but make an (unnamed) symbol
specifically for this.
May fix#54346.
Change-Id: If0c34f7844c3553a7be3846b66cf1c103bc231c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/422300
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This reverts commit c3833a5543.
Reason for revert: Bug somewhere in this code, causing wasm and maybe linux/386 to fail.
Change-Id: I05f7cfa467598ca0c2c84fd4f752cc4ef117cc51
Reviewed-on: https://go-review.googlesource.com/c/go/+/422394
Run-TryBot: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
