Commit graph

43 commits

Author SHA1 Message Date
Matthew Dempsky
d18e9407b0 cmd/compile/internal/ir: add Func.DeclareParams
There's several copies of this function. We only need one.

While here, normalize so that we always declare parameters, and always
use the names ~pNN for params and ~rNN for results.

Change-Id: I49e90d3fd1820f3c07936227ed5cfefd75d49a1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/528415
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Than McIntosh <thanm@google.com>
2023-09-14 13:15:50 +00:00
Matthew Dempsky
08a08083c1 cmd/compile/internal/typecheck: merge SubstArgTypes into LookupRuntime
LookupRuntime is the only reason for using SubstArgTypes, and most
callers to LookupRuntime need to immediately call it anyway. So might
as well fuse them together.

Change-Id: Ie0724ed164b949040e898a2a77bea632801b64fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/521415
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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2023-08-22 21:17:13 +00:00
Matthew Dempsky
14f5eb7f31 cmd/compile/internal/types: overhaul and simplify API
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
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Austin Clements <austin@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
2023-08-22 01:53:41 +00:00
Matthew Dempsky
9ac6b00e79 cmd/compile/internal/typecheck: add selector helpers
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
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2023-08-20 05:57:18 +00:00
Matthew Dempsky
009ca22fe2 cmd/compile/internal/typecheck: refactor and simplify DeclFunc
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
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2023-08-20 05:56:49 +00:00
Matthew Dempsky
7af28fa90e cmd/compile/internal/ir: remove AsNode
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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2023-08-18 22:41:47 +00:00
Matthew Dempsky
4089b6a5b1 cmd/compile/internal/typecheck: remove DeclContext
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>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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2023-08-18 22:39:00 +00:00
Matthew Dempsky
78f90511ec cmd/compile/internal/typecheck: replace Temp calls with TempAt
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
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2023-08-18 22:38:47 +00:00
Matthew Dempsky
4e411e7bc4 cmd/compile: cleanup Func construction
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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2023-08-17 19:36:28 +00:00
Matthew Dempsky
5c6fbd2c3e cmd/compile: always construct typechecked closures
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
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2023-08-17 19:36:26 +00:00
Matthew Dempsky
f123f5c768 cmd/compile: mark generated eq/hash functions as //go:noinline
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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2023-08-14 18:39:18 +00:00
Matthew Dempsky
e7e5913161 cmd/compile: cleanup ir.Package
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
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2023-08-11 18:12:07 +00:00
Derek Parker
c5ba9d2232 cmd/compile: prioritize non-CALL struct member comparisons
This patch optimizes reflectdata.geneq to pick apart structs in array
equality and prioritize non-CALL comparisons over those which involve
a runtime function call. This is similar to how arrays of strings
operate currently. Instead of looping over the entire array of structs
once, if there are any comparisons which involve a runtime function
call we instead loop twice. The first loop is all simple, quick
comparisons. If no inequality is found in the first loop the second loop
calls runtime functions for larger memory comparison, which is more
expensive.

For the benchmarks added in this change:

Old:

```
goos: linux
goarch: amd64
pkg: cmd/compile/internal/reflectdata
cpu: AMD Ryzen 9 3950X 16-Core Processor
BenchmarkEqArrayOfStructsEq
BenchmarkEqArrayOfStructsEq-32            797196              1497 ns/op
BenchmarkEqArrayOfStructsEq-32            758332              1581 ns/op
BenchmarkEqArrayOfStructsEq-32            764871              1599 ns/op
BenchmarkEqArrayOfStructsEq-32            760706              1558 ns/op
BenchmarkEqArrayOfStructsEq-32            763112              1476 ns/op
BenchmarkEqArrayOfStructsEq-32            747696              1547 ns/op
BenchmarkEqArrayOfStructsEq-32            756526              1562 ns/op
BenchmarkEqArrayOfStructsEq-32            768829              1486 ns/op
BenchmarkEqArrayOfStructsEq-32            764248              1477 ns/op
BenchmarkEqArrayOfStructsEq-32            752767              1545 ns/op
BenchmarkEqArrayOfStructsNotEq
BenchmarkEqArrayOfStructsNotEq-32         757194              1542 ns/op
BenchmarkEqArrayOfStructsNotEq-32         748942              1552 ns/op
BenchmarkEqArrayOfStructsNotEq-32         766687              1554 ns/op
BenchmarkEqArrayOfStructsNotEq-32         732069              1541 ns/op
BenchmarkEqArrayOfStructsNotEq-32         759163              1576 ns/op
BenchmarkEqArrayOfStructsNotEq-32         796402              1629 ns/op
BenchmarkEqArrayOfStructsNotEq-32         726610              1570 ns/op
BenchmarkEqArrayOfStructsNotEq-32         735770              1584 ns/op
BenchmarkEqArrayOfStructsNotEq-32         745255              1610 ns/op
BenchmarkEqArrayOfStructsNotEq-32         743872              1591 ns/op
PASS
ok      cmd/compile/internal/reflectdata        35.446s
```

New:

```
goos: linux
goarch: amd64
pkg: cmd/compile/internal/reflectdata
cpu: AMD Ryzen 9 3950X 16-Core Processor
BenchmarkEqArrayOfStructsEq
BenchmarkEqArrayOfStructsEq-32            618379              1827 ns/op
BenchmarkEqArrayOfStructsEq-32            619368              1922 ns/op
BenchmarkEqArrayOfStructsEq-32            616023              1910 ns/op
BenchmarkEqArrayOfStructsEq-32            617575              1905 ns/op
BenchmarkEqArrayOfStructsEq-32            610399              1889 ns/op
BenchmarkEqArrayOfStructsEq-32            615378              1823 ns/op
BenchmarkEqArrayOfStructsEq-32            613732              1883 ns/op
BenchmarkEqArrayOfStructsEq-32            613924              1894 ns/op
BenchmarkEqArrayOfStructsEq-32            657799              1876 ns/op
BenchmarkEqArrayOfStructsEq-32            665580              1873 ns/op
BenchmarkEqArrayOfStructsNotEq
BenchmarkEqArrayOfStructsNotEq-32        1834915               627.4 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1806370               660.5 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1828075               625.5 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1819741               641.6 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1813128               632.3 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1865250               643.7 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1828617               632.8 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1862748               633.6 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1825432               638.7 ns/op
BenchmarkEqArrayOfStructsNotEq-32        1804382               628.8 ns/op
PASS
ok      cmd/compile/internal/reflectdata        36.571s
```

Benchstat comparison:

```
name                      old time/op  new time/op  delta
EqArrayOfStructsEq-32     1.53µs ± 4%  1.88µs ± 3%  +22.66%  (p=0.000 n=10+10)
EqArrayOfStructsNotEq-32  1.57µs ± 3%  0.64µs ± 4%  -59.59%  (p=0.000 n=10+10)
```

So, the equal case is a bit slower (unrolling the loop helps with that),
but the non-equal case is now much faster.

Change-Id: I05d776456c79c48a3d6d74b18c45246e58ffbea6
GitHub-Last-Rev: f57ee07d05
GitHub-Pull-Request: golang/go#59409
Reviewed-on: https://go-review.googlesource.com/c/go/+/481895
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2023-05-24 21:55:14 +00:00
David Chase
5a7793b7b8 cmd/compile: add flag to FOR/RANGE to preserve loop semantics across inlines
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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2023-03-06 18:34:53 +00:00
Matthew Dempsky
b94dc384ca cmd/compile/internal/ir: explicit Pos for New{Bool,Int,String}
Stop depending on base.Pos for these.

Change-Id: I58dea44f8141eb37b59a6e9f7db0c6baa516ad93
Reviewed-on: https://go-review.googlesource.com/c/go/+/472296
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2023-03-04 00:00:01 +00:00
Cuong Manh Le
eee2697c38 cmd/compile: use ONAME node directly from generated hash func
This reverts CL 468879

CL 469017 marked type eq/hash functions as non-inlineable, so this
change won't cause ICE anymore.

Updates #58572

Change-Id: I3e6ec9ba2217102693acd1848a0eba0886dc9fda
Reviewed-on: https://go-review.googlesource.com/c/go/+/469018
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2023-02-28 17:47:51 +00:00
Matthew Dempsky
95be547e0a Revert "cmd/compile: use ONAME node directly from generated hash func"
This reverts commit 25f5d9d4a2.

Causes ICE on valid code.

Updates #58572.

Change-Id: Ib276c87d9b0362bbd2a760ac2a242f82d4e20400
Reviewed-on: https://go-review.googlesource.com/c/go/+/468879
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2023-02-17 03:58:59 +00:00
Cuong Manh Le
25f5d9d4a2 cmd/compile: use ONAME node directly from generated hash func
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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2023-02-04 07:03:16 +00:00
Cuong Manh Le
4636c57fe1 cmd/compile: factor out code to generate hash func
Passes toolstash-check.

Change-Id: I86a078ffc5948cbcbec84ce8012f3dfb1c2269b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/436960
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2023-02-04 07:03:06 +00:00
Cuong Manh Le
fcff7226f3 cmd/compile: use runtime hash func for known types
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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2023-02-04 07:02:59 +00:00
Cuong Manh Le
b1fd277318 cmd/compile: use memhash from package runtime
Simplify the code, and prevent creating ONAME node with nil Func.

Passes toolstash-check.

Change-Id: I5e5be660510dc0ef5521d278c6b9214a80b994eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/436958
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2023-02-04 07:02:52 +00:00
Cuong Manh Le
864b54e2c3 cmd/compile: generate type equal func during walk
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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2023-02-04 07:02:44 +00:00
Cuong Manh Le
ea3054aecc cmd/compile: factor out code to generate equal func
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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2023-02-04 07:02:31 +00:00
Matthew Dempsky
13c70b12d7 cmd/compile/internal/types: remove Markdcl/Pushdcl/Popdcl
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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2023-01-26 21:56:56 +00:00
Matthew Dempsky
f0b1563535 cmd/compile/internal/types: remove unneeded functionality
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
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2023-01-26 21:56:49 +00:00
Matthew Dempsky
5073c1c740 cmd/compile: construct ir.FuncType within typecheck.DeclFunc
Currently all typecheck.DeclFunc callers already construct a fresh new
ir.FuncType, which is the last type expression kind that we represent
in IR.

This CL pushes all of the ir.FuncType construction down into
typecheck.DeclFunc. The next CL will simplify the internals so that we
can get rid of ir.FuncType altogether.

Change-Id: I221ed324f157eb38bb57c8886609f53cc4fd99fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/403848
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
2022-05-05 18:49:17 +00:00
Matthew Dempsky
73fb829f59 cmd/compile: remove ir.NewField's ntyp parameter
ir.NewField is always called with ntyp as nil.

Change-Id: Iccab4ce20ae70d056370a6469278e68774e685f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/403834
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
2022-05-05 18:47:47 +00:00
Derek Parker
3c29aca436 cmd/compile: Unify & improve struct comparisons
Partially fixes https://github.com/golang/go/issues/38674

The first commit has the actual unification, the second commit just cleans things up by moving shared code into its own package for clarity.

Change-Id: I85067f8b247df02f94684ec1297a1a42263bba0c
GitHub-Last-Rev: 370a4ecad3
GitHub-Pull-Request: golang/go#52315
Reviewed-on: https://go-review.googlesource.com/c/go/+/399542
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-04-21 23:45:31 +00:00
Russ Cox
19309779ac all: gofmt main repo
[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.

For #51082.

Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2022-04-11 16:34:30 +00:00
vpachkov
1a955bcdb7 reflectdata: unroll a loop in array equal function generation
As josharian mentioned, a compare function could benefit from
unrolling a loop for arrays. This commit introduces such
functionality.

name                     old time/op  new time/op  delta
EqArrayOfStrings5-12     12.5ns ± 1%   8.4ns ± 1%  -33.05%  (p=0.008 n=5+5)
EqArrayOfStrings64-12    71.7ns ± 1%  64.1ns ± 1%  -10.57%  (p=0.008 n=5+5)
EqArrayOfStrings1024-12  1.12µs ± 1%  1.01µs ± 0%   -9.77%  (p=0.008 n=5+5)
[Geo mean]                100ns         81ns       -18.56%

name                    old time/op  new time/op  delta
EqArrayOfFloats5-12     4.50ns ± 2%  3.32ns ± 1%  -26.09%  (p=0.008 n=5+5)
EqArrayOfFloats64-12    41.3ns ± 1%  35.7ns ± 0%  -13.63%  (p=0.016 n=5+4)
EqArrayOfFloats1024-12   619ns ± 1%   557ns ± 1%   -9.95%  (p=0.008 n=5+5)
[Geo mean]              48.6ns       40.4ns       -16.85%

Change-Id: If1b69c5cf3fb246bb0275a292118b0b93ad9c9a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/368614
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-04-05 14:34:18 +00:00
Matthew Dempsky
72c003ef82 cmd/compile: unexport Type.Width and Type.Align [generated]
[git-generate]
cd src/cmd/compile/internal

: Workaround rf issue with types2 tests.
rm types2/*_test.go

: Rewrite uses. First a type-safe rewrite,
: then a second pass to fix unnecessary conversions.
rf '
ex ./abi ./escape ./gc ./liveness ./noder ./reflectdata ./ssa ./ssagen ./staticinit ./typebits ./typecheck ./walk {
  import "cmd/compile/internal/types"
  var t *types.Type
  t.Width -> t.Size()
  t.Align -> uint8(t.Alignment())
}

ex ./abi ./escape ./gc ./liveness ./noder ./reflectdata ./ssa ./ssagen ./staticinit ./typebits ./typecheck ./walk {
  import "cmd/compile/internal/types"
  var t *types.Type
  int64(uint8(t.Alignment())) -> t.Alignment()
}
'

: Rename fields to lower case.
(
cd types
rf '
mv Type.Width Type.width
mv Type.Align Type.align
'
)

: Revert types2 changes.
git checkout HEAD^ types2

Change-Id: I42091faece104c4ef619d9d4d50514fd48c8f029
Reviewed-on: https://go-review.googlesource.com/c/go/+/345480
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-08-27 20:43:31 +00:00
Matthew Dempsky
cd00499c61 [dev.typeparams] cmd/compile: better Call constructor
Historically, it's been tedious to create and typecheck ir.OCALL
nodes, except by handing them off entirely to typecheck. This is
because typecheck needed context on whether the call is an expression
or statement, and to set flags like Func.ClosureCalled and
CallExpr.Use.

However, those flags have now been removed entirely by recent CLs, so
we can instead just provide a better typecheck.Call function for
constructing and typechecking arbitrary call nodes. Notably, this
simplifies things for unified IR, which can now incrementally
typecheck call expressions as it goes without worrying about context.

Change-Id: Icbdc55c3bd8be84a242323bc45006f9dec09fdcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/332692
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-07-04 00:19:36 +00:00
Keith Randall
873401df5b cmd/compile: ensure equal functions don't do unaligned loads
On architectures which don't support unaligned loads, make sure we
don't generate code that requires them.

Generated hash functions also matter in this respect, but they all look ok.

Update #37716
Fixes #46283

Change-Id: I6197fdfe04da4428092c99bd871d93738789e16b
Reviewed-on: https://go-review.googlesource.com/c/go/+/322151
Trust: Keith Randall <khr@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: eric fang <eric.fang@arm.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-05-24 19:06:05 +00:00
Cherry Zhang
411860251e cmd/compile: reference ABIInternal memequal_varlen
memequal_varlen is put into a closure and is called in internal
ABI in the runtime. Emit an ABIInternal reference.

Updates #40724.

Change-Id: I914555f8188561882625e008b595389e50a3a167
Reviewed-on: https://go-review.googlesource.com/c/go/+/307233
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Austin Clements <austin@google.com>
2021-04-05 17:22:53 +00:00
Austin Clements
0d1423583b cmd/compile: set ir.Name.Func in more cases
ir.Name.Func is non-nil for *almost* all function names. This CL fixes
a few more major cases that leave it nil, though there are still a few
cases left: interface method values, and algorithms generated by
eqFor, hashfor, and hashmem.

We'll need this for mapping from ir.Names to function ABIs shortly.
The remaining cases would be nice to fix, but they're all guaranteed
to be ABIInternal, so we can at least work around them.

For #40724.

Change-Id: Ifcfa781c78899ccea0bf155d80f8cfc27f30351e
Reviewed-on: https://go-review.googlesource.com/c/go/+/305271
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-03-29 18:46:28 +00:00
Dan Scales
e633f343ba [dev.typeparams] cmd/compile: add OFUNCINST/OTYPEINST nodes for generic func/type instantiation
Expresses things more clearly, especially in cases like 'f := min[int]'
where we create a xsgeneric function instantiation, but don't immediately
call it.

min[int](2, 3) now looks like:

.   CALLFUNC tc(1) Use:1 int # min1.go:11 int
.   .   FUNCINST tc(1) FUNC-func(int, int) int # min1.go:11 FUNC-func(int, int) int
.   .   .   NAME-main.min tc(1) Class:PFUNC Offset:0 Used FUNC-func[T](T, T) T # min1.go:3
.   .   FUNCINST-Targs
.   .   .   TYPE .int Offset:0 type int
.   CALLFUNC-Args
.   .   LITERAL-2 tc(1) int # min1.go:11
.   .   LITERAL-3 tc(1) int # min1.go:11

Remove the targs parameter from ir.NewCallExpr(), not needed anymore,
since type arguments are included in the FUNCINST.

Change-Id: I23438b75288330475294d7ace239ba64acfa641e
Reviewed-on: https://go-review.googlesource.com/c/go/+/288951
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-02-03 01:18:23 +00:00
Dan Scales
2440dd457a [dev.typeparams] cmd/compile: start adding info needed for typeparams in types & ir
We are focusing on generic functions first, and ignoring type lists for
now.

The signatures of types.NewSignature() and ir.NewCallExpr() changed (with
addition of type args/params).

Change-Id: I57480be3d1f65690b2946e15dd74929bf42873f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/287416
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
2021-01-28 20:28:11 +00:00
Dan Scales
a956a0e909 [dev.regabi] cmd/compile, runtime: fix up comments/error messages from recent renames
Went in a semi-automated way through the clearest renames of functions,
and updated comments and error messages where it made sense.

Change-Id: Ied8e152b562b705da7f52f715991a77dab60da35
Reviewed-on: https://go-review.googlesource.com/c/go/+/284216
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2021-01-16 02:31:08 +00:00
Baokun Lee
b241938e04 [dev.regabi] cmd/compile: fix some methods error text
Change-Id: Ie9b034efba30d66a869c5e991b60c76198fd330f
Reviewed-on: https://go-review.googlesource.com/c/go/+/279444
Run-TryBot: Baokun Lee <bk@golangcn.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-01-08 11:05:29 +00:00
Matthew Dempsky
a5ec920160 [dev.regabi] cmd/compile: more Linksym cleanup
This largely gets rid of the remaining direct Linksym calls, hopefully
enough to discourage people from following bad existing practice until
Sym.Linksym can be removed entirely.

Passes toolstash -cmp.

Change-Id: I5d8f8f703ace7256538fc79648891ede0d879dc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/280641
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-29 07:55:00 +00:00
Matthew Dempsky
ec59b197d5 [dev.regabi] cmd/compile: rewrite to use linksym helpers [generated]
Passes toolstash -cmp.

[git-generate]
cd src/cmd/compile/internal/gc
pkgs=$(grep -l -w Linksym ../*/*.go | xargs dirname | grep -v '/gc$' | sort -u)
rf '
	ex . '"$(echo $pkgs)"' {
		import "cmd/compile/internal/ir"
		import "cmd/compile/internal/reflectdata"
		import "cmd/compile/internal/staticdata"
		import "cmd/compile/internal/types"

		avoid reflectdata.TypeLinksym
		avoid reflectdata.TypeLinksymLookup
		avoid reflectdata.TypeLinksymPrefix
		avoid staticdata.FuncLinksym

		var f *ir.Func
		var n *ir.Name
		var s string
		var t *types.Type

		f.Sym().Linksym() -> f.Linksym()
		n.Sym().Linksym() -> n.Linksym()

		reflectdata.TypeSym(t).Linksym() -> reflectdata.TypeLinksym(t)
		reflectdata.TypeSymPrefix(s, t).Linksym() -> reflectdata.TypeLinksymPrefix(s, t)
		staticdata.FuncSym(n.Sym()).Linksym() -> staticdata.FuncLinksym(n)
		types.TypeSymLookup(s).Linksym() -> reflectdata.TypeLinksymLookup(s)
	}
'

Change-Id: I7a3ae1dcd61bcdf4a29f708ff12f7f80c2b280c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/280640
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-29 07:54:55 +00:00
Matthew Dempsky
addade2cce [dev.regabi] cmd/compile: prefer types constructors over typecheck
Similar to the earlier mkbuiltin cleanup, there's a bunch of code that
calls typecheck.NewFuncType or typecheck.NewStructType, which can now
just call types.NewSignature and types.NewStruct, respectively.

Passes toolstash -cmp.

Change-Id: Ie6e09f1a7efef84b9a2bb5daa7087a6879979668
Reviewed-on: https://go-review.googlesource.com/c/go/+/279955
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 11:59:23 +00:00
Russ Cox
de65151e50 [dev.regabi] cmd/compile: split out package reflectdata [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	ex {
		import "cmd/compile/internal/base"
		thearch.LinkArch.Name -> base.Ctxt.Arch.Name
	}

	# Move out of reflect.go a few functions that should stay.
	mv addsignats obj.go
	mv deferstruct ssa.go

	# Export reflectdata API.
	mv zerosize ZeroSize
	mv hmap MapType
	mv bmap MapBucketType
	mv hiter MapIterType
	mv addsignat NeedRuntimeType
	mv typename TypePtr
	mv typenamesym TypeSym
	mv typesymprefix TypeSymPrefix
	mv itabsym ITabSym
	mv tracksym TrackSym
	mv zeroaddr ZeroAddr
	mv itabname ITabAddr
	mv ifaceMethodOffset InterfaceMethodOffset
	mv peekitabs CompileITabs
	mv addptabs CollectPTabs
	mv algtype AlgType
	mv dtypesym WriteType
	mv dumpbasictypes WriteBasicTypes
	mv dumpimportstrings WriteImportStrings
	mv dumpsignats WriteRuntimeTypes
	mv dumptabs WriteTabs
	mv eqinterface EqInterface
	mv eqstring EqString

	mv GCProg gcProg
	mv EqCanPanic eqCanPanic
	mv IsRegularMemory isRegularMemory
	mv Sig typeSig

	mv hashmem alg.go
	mv CollectPTabs genwrapper ZeroSize reflect.go
	mv alg.go reflect.go cmd/compile/internal/reflectdata
'

Change-Id: Iaae9da9e9fad5f772f5216004823ccff2ea8f139
Reviewed-on: https://go-review.googlesource.com/c/go/+/279475
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:23 +00:00
Renamed from src/cmd/compile/internal/gc/alg.go (Browse further)