Added a test to make sure that the private methods of a local generic
type are properly exported, if there is a global variable with that
type.
Added comments in crawler.go, to give more detail and to give more about
the overall purpose.
Fixed one place where t.isFullyInstantiated() should be replaced by
isPtrFullyInstantiated(t), so that we catch pointers to generic types
that may be used as a method receiver.
Change-Id: I9c42d14eb6ebe14d249df7c8fa39e889f7cd3f22
Reviewed-on: https://go-review.googlesource.com/c/go/+/374754
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Using type aliases, it's possible to create structs with embedded
fields that have no corresponding type literal notation. However, we
still need to generate a unique name for these types to use for linker
symbols. This CL introduces a new "struct{ Name = Type }" syntax for
use in LinkString formatting to represent these types.
Fixes#50190.
Change-Id: I025ceb09a86e00b7583d3b9885d612f5d6cb44fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/372914
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Finally figured out how to deal with the interaction between generics
and inlining. The problem has been: what to do if you inline a function
that uses a new instantiated type that hasn't been seen in the current
package? This might mean that you need to do another round of
function/method instantiatiations after inlining, which might lead to
more inlining, etc. (which is what we currently do, but it's not clear
when you can stop the inlining/instantiation loop).
We had thought that one solution was to export instantiated types (even
if not marked as exportable) if they are referenced in exported
inlineable functions. But that was quite complex and required changing
the export format. But I realized that we really only need to make sure
the relevant dictionaries and shape instantiations for the instantiated
types are exported, not the instantiated type itself and its wrappers.
The instantiated type is naturally created as needed, and the wrappers
are generated automatically while writing out run-time type (making use
of the exported dictionaries and shape instantiations).
So, we just have to make sure that those dictionaries and shape
instantiations are exported, and then they will be available without any
extra round of instantiations after inlining. We now do this in
crawler.go. This is especially needed when the instantiated type is only
put in an interface, so relevant dictionaries/shape instantiations are
not directly referenced and therefore exported, but are still needed for
the itab.
This fix avoids the phase ordering problem where we might have to keep
creating new type instantiations and instantiated methods after each
round of inlining we do.
Removed the extra round of instantiation/inlining that were added in the
previous fix. The existing tests
test/typeparam{geninline.go,structinit.go} already test this situation
of inlining a function referencing a new instantiated type.
Added the original example from issue 50121 as test (has 5 packages),
since it found a problem with this code that the current simpler test
for 50121 did not find.
Change-Id: Iac5d0dddf4be19376f6de36ee20a83f0d8f213b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/375494
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Similarly to what we do for the built-in function `copy`,
where we allow a string as 2nd argument to append, also
permit a type parameter constrained by string|[]byte.
While at it, change date in the manual.go2 test files so
that we don't need to constantly correct it when copying
a test case from that file into a proper test file.
Fixes#50281.
Change-Id: I23fed66736aa07bb3c481fe97313e828425ac448
Reviewed-on: https://go-review.googlesource.com/c/go/+/376214
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
types2 allows the conversion of a slice of a user-defined byte type B
(not builtin uint8 or byte) to string. But runtime.slicebytetostring
requires a []byte argument, so add in a CONVNOP from []B to []byte if
needed. Same for the conversion of a slice of user-defined rune types to
string.
I made the same change in the transformations of the old typechecker, so
as to keep tcConv() and transformConv() in sync. That fixes the bug for
-G=0 mode as well.
Fixes#23536
Change-Id: Ic79364427f27489187f3f8015bdfbf0769a70d69
Reviewed-on: https://go-review.googlesource.com/c/go/+/376056
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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CL 352870 added extra phase for instantiation after inlining, to take
care of the new fully-instantiated types. However, when fetching inlined
body of these types's methods, we need to allow OADDR operations on
untyped expressions, the same as what main inlining phase does.
The problem does not show up, until CL 371554, which made the compiler
do not re-typecheck while importing, thus leaving a OXDOT node to be
marked as address taken when it's not safe to do that.
Fixes#50437
Change-Id: I20076b872182c520075a4f8b84230f5bcb05b341
Reviewed-on: https://go-review.googlesource.com/c/go/+/375574
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
For #50317.
Change-Id: I24ccf333c380283a36b573ef8fc3e7fcd71bd17f
Reviewed-on: https://go-review.googlesource.com/c/go/+/376215
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Work-around for #50481: report an error for multiple
blank type parameters. It's always possible to use
non-blank names in those cases.
We expect to lift this restriction for 1.19.
For #50481.
Change-Id: Ifdd2d91340aac1da3387f7d80d46e44f5997c2a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/376058
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Move switch to enable method type parameters entirely
to the parser, by adding the mode AllowMethodTypeParams.
Ensure that the error messages are consistent.
Remove unnecessary code in the type checker.
Fixes#50317.
Change-Id: I4f3958722400bdb919efa4c494b85cf62f4002bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/376054
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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This change implements field the access p.f where the type of p
is a type parameter with a structural constraint that is a struct
with a field f. This is only the fix for the type checker. The
compiler will need a separate CL.
This makes the behavior consistent with the fact that we can
write struct composite literals for type parameters with a
struct structural type.
For #50417.
For #50233.
Change-Id: I87d07e016f97cbf19c45cde19165eae3ec0bad2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/375795
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
For #50439
Change-Id: Ifad6e6f8de42121c695b5a4dc56e0f6606e2917e
Reviewed-on: https://go-review.googlesource.com/c/go/+/375796
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Than McIntosh <thanm@google.com>
Trust: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
In the dict info, we need to save the SelectorExpr of a generic method
call when making its sub-dictionary entry. The generic method call will
eventually be transformed into a function call on the method shape
instantiation, so we may not always have the selector info available
when we need it to create a dictionary. We use this SelectorExpr as
needed if the relevant call node has already been transformed.
Similarly, we save the InstExpr of generic function calls, since the
InstExpr will be dropped when the function call is transformed to a call
to a shape instantiation. We use this InstExpr if the relevant function
call has already been transformed.
Added an extra generic function Some2 and a call to it from Some that
exercises the generic function case. The existing test already tests the
method call case.
Fixes#50264
Change-Id: I2c7c7d79a8e33ca36a5e88e64e913c57500c97f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/373754
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Since we use existing instantiations from the symbol table when possible
(to make sure each instantiation is unique), we need to pop
instantiations of local types when leaving the containing scope.
g.stmts() now pushes and pops scope, and we do a Pushdcl() in g.typ0()
when creating an instantiation of a local type.
Non-instantiated local types (generic or not) are translated directly
from types2, so they don't need to be pushed/popped. We don't export
function bodies with local types, so there is no issue during import.
We still don't support local types in generic functions/methods.
Fixes#50177
Change-Id: If2d2fe71aec003d13f0338565c7a0da2c9580a14
Reviewed-on: https://go-review.googlesource.com/c/go/+/372654
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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The imported code is already typechecked. NodAddrAt typechecks its
argument, which is unnecessary here and leads to errors when
typechecking unexported field references in other packages' code.
Mark the node is question as already typechecked, so we don't
retypecheck it.
Fixes#50148
Change-Id: I9789e3e7dd4d58ec095675e27b1c98389f7a0c44
Reviewed-on: https://go-review.googlesource.com/c/go/+/371554
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Generic instantiations can produce conversions from constant
literal ints or floats to complex values. We could constant literals
during instantiation, but it is just as easy to upgrade the code
generator to do the conversions.
Fixes#50193
Change-Id: I24bdc09226c8e868f6282e0e4057ba6c3ad5c41a
Reviewed-on: https://go-review.googlesource.com/c/go/+/372514
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Thanks to the simpler test case for issue 50109. I'm keeping the old
test case in place, since it's not too complex, and may be useful for
testing other things as well.
Updates #50109
Change-Id: I80cdbd1da473d0cc4dcbd68e45bab7ddb6f9263e
Reviewed-on: https://go-review.googlesource.com/c/go/+/371515
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: roger peppe <rogpeppe@gmail.com>
The builtin "any" type should only be identical to an unnamed empty
interface type, not a defined empty interface type.
Fixes#50169.
Change-Id: Ie5bb88868497cb795de1fd0276133ba9812edfe4
Reviewed-on: https://go-review.googlesource.com/c/go/+/372217
Trust: Cherry Mui <cherryyz@google.com>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
We delay all transformations on generic functions, and only do them on
instantiated functions, for several reasons, of which one is that
otherwise the compiler won't understand the relationship between
constrained type parameters. In an instantiation with shape arguments,
the underlying relationship between the type arguments are clear and
don't lead to compiler errors.
This issue is because I missed delaying assignment transformations for
variable declarations. So, we were trying to transform an assignment,
and the compiler doesn't understand the relationship between the T and U
type parameters.
The fix is to delay assignment transformations for variable declarations
of generic functions, just as we do already for normal assignment
statements.
A work-around for this issue would be to just separate the assignment
from the variable declaration in the generic function (for this case of
an assignment involving both of the constrained type parameters).
Fixes#50147
Change-Id: Icdbcda147e5c4b386e4715811761cbe73d0d837e
Reviewed-on: https://go-review.googlesource.com/c/go/+/371534
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
We can import an shape-instantiated function/method for inlining
purposes. If we are instantiating the methods of a instantiated type
that we have seen, and it happens to need a shape instantiation that we
have imported, then don't re-create the instantiation, since we will end
up with conflicting/duplicate definitions for the instantiation symbol.
Instead, we can just use the existing imported instantation, and enter
it in the instInfoMap[].
Fixes#50121
Change-Id: I6eeb8786faad71106e261e113048b579afad04fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/371414
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
A "RET f(SB)" wasn't assembled correctly in a leaf function with
non-zero frame size. Follows CL 371034, for MIPS(32/64)(be/le)
and S390X. Other architectures seem to do it right. Add a test.
Change-Id: I41349a7ae9862b924f3a3de2bcb55b782061ce21
Reviewed-on: https://go-review.googlesource.com/c/go/+/371214
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
In identical(), we don't want any to match a shape empty-interface type
for the identStrict option, since IdenticalStrict() is specifically not
supposed to match a shape type with a non-shape type.
There is similar code in (*Type).cmp() (TINTER case), but I don't
believe that we want to disqualify shape types from matching any in this
case, since cmp() is used for back-end code, where we don't care about
shape types vs non-shape types.
The issue mainly comes about when 'any' is used as a type argument
(rather than 'interface{}'), but only with some complicated
circumstances, as shown by the test case. (Couldn't reproduce with
simpler test cases.)
Fixes#50109
Change-Id: I3f2f88be158f9ad09273237e1d346bc56aac099f
Reviewed-on: https://go-review.googlesource.com/c/go/+/371154
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Augmented some of the typeswitch*.go tests so that some instantiations
have duplicate cases, in order to ensure we're testing that.
Spacing changes in the tests are due to gofmt.
Change-Id: I5d3678813505c520c544281d4ac8a62ce7e236ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/370155
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Deal with case where a certain instantiation of a generic
function/method leads to an unsatisfiable type assertion or type case.
In that case, the compiler was causing a fatal error while trying to
create an impossible itab for the dictionary. To deal with that case,
allow ITabLsym() to create a dummy itab even when the concrete type
doesn't implement the interface. This dummy itab is analogous to the
"negative" itabs created on-the-fly by the runtime.
We will use the dummy itab in type asserts and type switches in
instantiations that use that dictionary entry. Since the dummy itab can
never be used for any real value at runtime (since the concrete type
doesn't implement the interface), there will always be a failure for the
corresponding type assertion or a non-match for the corresponding
type-switch case.
Fixes#50002
Change-Id: I1df05b1019533e1fc93dd7ab29f331a74fab9202
Reviewed-on: https://go-review.googlesource.com/c/go/+/369894
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The type was changed in https://golang.org/cl/3991043 but the comment
wasn't updated.
Change-Id: I7ba3f625c732e5e801675ffc5d4a28e1d310faa3
Reviewed-on: https://go-review.googlesource.com/c/go/+/369374
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Rob Pike <r@golang.org>
Make sure that we can import/export selects for generics.
Change-Id: Ibf36e98fc574ce9275820aa426b3e6703b0aae6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/369101
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Enable a bunch of types2-related error tests to run successfully, so
they no longer have to be disabled in run.go.
- directive.go: split it into directive.go and directive2.go, since the
possible errors are now split across the parser and noder2, so they
can't all be reported in one file.
- linkname2.go: similarly, split it into linkname2.go and linkname3.go
for the same reason.
- issue16428.go, issue17645.go, issue47201.dir/bo.go: handle slightly
different wording by types2
- issue5609.go: handle slight different error (array length must be
integer vs. array bound too large).
- float_lit3.go: handle slightly different wording (overflows
float vs cannot convert to float)
I purposely didn't try to fix tests yet where there are extra or missing
errors on different lines, since that is not easy to make work for both
-G=3 and -G=0. In a later change, will flip to make the types2 version
match correctly, vs. the -G=0 version.
Change-Id: I6079ff258e3b90146335b9995764e3b1b56cda59
Reviewed-on: https://go-review.googlesource.com/c/go/+/368455
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
First, we need to set base.Pos in varDecl() and typeDecl(), so it will
be correct if we need to report type size errors while converting types.
Changed error calls in types/sizes.go to use Errorf, not ErrorfAt, since
we want to use base.Pos (which will set from t.Pos(), if that is
available).
Second, we need to add an extra call CalcSize(t1.Elem()) in the
TCHANARGS case of CalcSize(). We can use CalcSize() rather than
CheckSize(), since we know the top-level recursive type will have been
calculated by the time we process the fake TCHANARGS type. In -G=0 mode,
the size of the channel element has often been calculated because of
some other processing (but not in the case of #49767). But in -G=3 mode,
we just calculate sizes during the single noder2 pass, so we are more
likely to have not gotten to calculating the size of the element yet,
depending on the order of processing of the deferredTypeStack.
Fixes the tests fixedbugs/issue{42058a,42058b}.go that were
disabled for -G=3 mode.
Had to add exceptions in stdlib_test.go for go/types and types2, because
the types2 typechecker does not know about type size limits.
Fixes#49814Fixes#49771
Updates #49767
Change-Id: I77d058e8ceff68a58c4c386a8cf46799c54b04c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/367955
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
When we set g.curDecl for the type params created during fillinMethods
for an instantiated type, we need to save/restore its value, because
fillinMethods() may be called while processing a typeDecl. We want the
value of g.curDecl to continue to be correct for type params created in
the typeDecl. Because of ordering issues, not restoring g.curDecl
happens to cause problems (which don't always show up visibly) exactly
when a type param is not actually used in a type declaration.
Cleared g.curDecl to "" at the later points in typeDecl() and
funcDecl(). This allows adding asserts that g.curDecl is always empty
("") when we set it in typeDecl() and funcDecl(), and always non-empty
when we use it in typ0().
Fixes#49893
Change-Id: Ic2fb1df791585bd257f2b86ffaae0453c31705c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/368454
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Currently, identical handles any and interface{} by checking against
Types[TINTER]. This is not always true, since when two generated
interface{} types may not use the same *Type instance.
Instead, we must check whether Type is empty interface or not.
Fixes#49875
Change-Id: I28fe4fc0100041a01bb03da795cfe8232b515fc4
Reviewed-on: https://go-review.googlesource.com/c/go/+/367754
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Thanks to emmanuel@orijtech.com who wrote the initial version of
this change (CL 354490).
This change is following CL 354490 in idea but also contains various
simplifications, slightly improved printing of signature/type patterns,
adjustments for types2, and some fine-tuning of error positions.
Also adjusted several ERROR regexp patterns.
Fixes#48834.
Fixes#48835.
Change-Id: I31cf20c81753b1dc84836dbe83a39030ceb9db23
Reviewed-on: https://go-review.googlesource.com/c/go/+/364874
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
This patch revises the fix for issue 46234, fixing a bug that was
accidentally introduced by CL 320913. When inlining a chunk of code
with a closure expression, we want to avoid updating the source
positions in the function being closed over, but we do want to update
the position for the ClosureExpr itself (since it is part of the
function we are inlining). CL 320913 unintentionally did away with the
closure expr source position update; here we restore it again.
Updates #46234.
Fixes#49171.
Change-Id: Iaa51bc498e374b9e5a46fa0acd7db520edbbbfca
Reviewed-on: https://go-review.googlesource.com/c/go/+/366494
Trust: Than McIntosh <thanm@google.com>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
When we have a typed nil, we already say so; thus it is sufficient
to use "nil" in all the other cases.
This is closer to (1.17) compiler behavior. In cases where the
1.17 compiler prints "untyped nil" (e.g., wrong uses of "copy"),
we already print a different message. We can do better in those
cases as well; will be addressed in a separate CL (see #49735).
Fixes#48852.
Change-Id: I9a7a72e0f99185b00f80040c5510a693b1ea80f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/366276
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
For -G=3 for test using 'any'.
Change-Id: Ia37ee944a38be4f4330e62ad187f10f2d42e41bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/365839
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
In the case where we need to re-export a generic function/method from
another package in the export data of the current package, make sure it
is loaded before trying to write it out.
Fixed#49667
Change-Id: I177754bb762689f34cf5c8ad246d43f1cdbbf195
Reviewed-on: https://go-review.googlesource.com/c/go/+/365837
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
`types.Types[types.TINTER]` is already used for `interface{}`, so we
can conveniently just extend the existing logic that substitutes
`byte` and `rune` with `uint8` and `int32` to also substitute `any`.
Fixes#49665.
Change-Id: I1ab1954699934150aab899b35037d5611c8ca47e
Reviewed-on: https://go-review.googlesource.com/c/go/+/365354
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
It causes a crash because of the unexpected XDOT operation. It's not
needed, since we will run ComputeAddrTaken() on function instantiations
after stenciling. And it's not always correct, since we may not be able
to distinguish between a array and a slice, if a type is dependent on a
type param.
However, we do need to call ComputeAddrTaken on instantiations created
during inlining, since that is after the main ComputeAddrTaken pass.
Fixes#49659
Change-Id: I0bb610cf11f14e4aa9068f6ca2a012337b069c79
Reviewed-on: https://go-review.googlesource.com/c/go/+/365214
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Use actual unmapped memory instead of small integers to make
pointers that will fault when accessed.
Fixes#49562
Change-Id: I2c60c97cf80494dd962a07d10cfeaff6a00f4f8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/364914
Trust: Keith Randall <khr@golang.org>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
CL 364377 emitted definition of 'any' when compiling runtime. But 'any'
is only available when generic enabled. Thus emitting its definition
unconditionally causes the compiler crashes.
Updates #49619
Change-Id: I0888ca1cbc7a7df300310a99a344f170636333f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/364614
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
Include the predefined type 'any' in the list of other important
predefined types that are emitted when compiling the runtime package
(uintptr, string, etc).
Fixes#49619.
Change-Id: I4a851ba2f302fbc3a425e65daa325c6bf83659da
Reviewed-on: https://go-review.googlesource.com/c/go/+/364377
Trust: Than McIntosh <thanm@google.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
Type constraint satisfaction is interface implementation.
Adjusted a few error messages.
Change-Id: I4266af78e83131a76b1e3e44c847a21de760ac6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/363839
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
We hope to support this feature one day, but it doesn't work currently.
Issue a nice error message instead of having the compiler crash.
Update #47631
Change-Id: I0359411410acbaf9a5b9dbb988cd933de1bb8438
Reviewed-on: https://go-review.googlesource.com/c/go/+/364054
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
A recent change to error message formatting was missing a nil check.
Fixes#49592
Change-Id: Ic1843e0277ba75eec0e8e41fe34b59c323d7ea31
Reviewed-on: https://go-review.googlesource.com/c/go/+/364034
Trust: Robert Findley <rfindley@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Robert Findley <rfindley@google.com>
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TryBot-Result: Go Bot <gobot@golang.org>
We want package names exposed by reflect to be things like
main.F[main.foo], not main.F["".foo].
Fixes#49547
Change-Id: I182411a75d56ce1f64fde847e5b9ee74ce44e00b
Reviewed-on: https://go-review.googlesource.com/c/go/+/363656
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
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Reviewed-by: Dan Scales <danscales@google.com>
This test is failing with -G=0, so specify -G=3.
Change-Id: I4c74707d0a43f8191cb0b156204604458ba85136
Reviewed-on: https://go-review.googlesource.com/c/go/+/363699
Trust: Robert Findley <rfindley@google.com>
Trust: Dan Scales <danscales@google.com>
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When being used by the compiler, augment the types2 missing method
message with extra info, if a method is missing, but a method with the
correct name except for case (i.e. equal via string.EqualFold()) is
present. In that case, print out the wanted method and the method that
is present (that has the wrong case).
In the 1.17 compiler, we don't do this case-folding check when assigning
an interface to an interface, so I didn't add that check, but we could
add that.
Fixes#48471
Change-Id: Ic54549c1f66297c9221d979d49c1daa719aa66cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/363437
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
When being used by the compiler, fix up types2 error messages to be more
like Go 1.17 compiler errors. In particular:
- add information about which method is missing when a type is not
assignable/convertible/etc. to an interface.
- add information about any existing method which has the same name,
but wrong type.
- add extra hint in the case that the source or destination type is a
pointer to an interface, rather than an interface.
- add extra hint "need type assertion" in the case that the source is
an interface that is implemented by the destination.
- the following change in the CL stack also adds information about any
existing method with a different name that only differs in case.
Include much of the new logic in a new common function
(*Checker).missingMethodReason().
types2 still adds a little more information in some cases then the Go
1.17 compiler. For example, it typically says "(value of type T)",
rather than "(type T)", where "value" could also be "constant",
"variable", etc.
I kept the types2 error messages almost all the same when types2 is not
used by the compiler. The only change (to reduce amount of compatibility
code) was to change "M method" phrasing in one case to "method M"
phrasing in one error message (which is the phrasing it uses in all
other cases). That is the reason that there are a few small changes in
types2/testdata/check/*.src.
Added new test test/fixedbugs/issue48471.go to test that the added
information is appearing correctly.
Also adjusted the pattern matching in a bunch of other
test/fixedbugs/*.go, now that types2 is producing error messages closer
to Go 1.17. Was able to remove a couple test files from the types2
exception list in run.go.
Updated #48471
Change-Id: I8af1eae6eb8a5541d8ea20b66f494e2e795e1956
Reviewed-on: https://go-review.googlesource.com/c/go/+/363436
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Like OFUNCINST, in case of OXDOT call expression, the arguments need
to be transformed earlier, so any needed CONVIFACE nodes are exposed.
Fixes#49538
Change-Id: I275ddf6f53a9cadc8708e805941cdf7bdffabba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/363554
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Currently the recover4 test, which recovers from a panic created from a
fault, generates a fault by creating a hole in a mapping. It does this
via munmap. However, it's possible the runtime can create a new mapping
that ends up in that hole, for example if the GC executes, causing the
test to fail.
In fact, this is the case now with a smaller minimum heap size.
Modify the test to use mprotect, and clean up the code a little while
we're here: define everything in terms of the length of original
mapping, deduplicate some constants and expressions, and have the test
recover properly even if recover() returns nil (right now it panics
because it fails to type assert nil as error).
Fixes#49381.
Change-Id: If399eca564466e5e8aeb2dc6f86a246d0fce7b5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/363534
Trust: Michael Knyszek <mknyszek@google.com>
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Our compiler gets confused between functions that were declared
with no body, and those which have a body but it is empty.
Ensure that when stenciling, we generate a nonempty body.
The particular test that causes this problem is in
cmd/compile/internal/gc/main.go:enqueueFunc. It thinks that if
a function has no body, then we need to generate ABI wrappers for
it, but not compile it.
Fixes#49524
Change-Id: Id962666a2098f60a2421484b6a776eafdc4f4a63
Reviewed-on: https://go-review.googlesource.com/c/go/+/363395
Trust: Keith Randall <khr@golang.org>
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When building a call expression for function instantiation closure, if
it's a variadic function, the CallExpr.IsDDD must be set for typecheck
to work properly. Otherwise, there will be a mismatch between the
arguments type and the function signature.
Fixes#49516
Change-Id: I0af90ee3fcc3e6c8bba8b20e331e044cbce17985
Reviewed-on: https://go-review.googlesource.com/c/go/+/363314
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Keith Randall <khr@golang.org>
For #49512
Change-Id: Ic08652a4ec611b27150bf10b1118c1395715e5d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/363156
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Than McIntosh <thanm@google.com>
For generic functions, we can export untransformed OKEY nodes, and the
key identifier is written as an ONONAME. But in this case, we do not
want to call Resolve() on the identifier, since we may resolve to a
global type (as happens in this issue) or other global symbol with the
same name, if it exists. We just want to keep the key identifier as an
Ident node.
To solve this, I added an extra bool when exporting an ONONAME entry,
which indicates if this entry is for a key or for a global (external)
symbol. When the bool is true (this is for a key), we avoid calling
Resolve().
Fixes#49497
Change-Id: Ic8fa93d37bcad2110e0e0d060080b733e07e35d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/363074
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
If we reach a generic type that is part of a cycle
and we are in a type parameter list, we have a cycle
through a type parameter list, which is invalid.
Fixes#49439.
Change-Id: Ia6cf97e1748ca0c0e61c02841202050091365b0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/361922
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
When bulding formal arguments of newly created closure, irgen forgets to
set "..." field attribute, causing type mismatched between the closure
function and the ONAME node represents that closure function.
Fixes#49432
Change-Id: Ieddaa64980cdd3d8cea236a5a9de0204ee21ee39
Reviewed-on: https://go-review.googlesource.com/c/go/+/361961
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
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CL 361411 improved error message for go version requirement, but forgot
to update the test in cmd/go to match new error message. That causes
longtest builders failed.
This CL changes mod_vendor_goversion.txt to match compiler error, and
limit fixedbugs/issue49368.go to run with -G=3 only.
Updates #49368
Change-Id: I125fe0a8c2a1595066d39c03e97819e7a1274e0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/361963
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Bryan C. Mills <bcmills@google.com>
The openDeferRecord always insert vardef/varlive pairs into the entry block, it may destroy the mem chain when LECall's args are writing into the same block. So create a new block before that happens.
Fixes#49282
Change-Id: Ibda6c4a45d960dd412a641f5e02276f663c80785
Reviewed-on: https://go-review.googlesource.com/c/go/+/361410
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
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Trust: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
CL 360057 fixed missing update source type in storeArgOrLoad. However,
we should only update the type when processing struct/array. If we
update the type right before calling storeArgOrLoad, we may generate a
value with invalid type, e.g, OpStructSelect with non-struct type.
Fixes#49378
Change-Id: Ib7e10f72f818880f550aae5c9f653db463ce29b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/361594
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: David Chase <drchase@google.com>
This adds a debugging hook for optionally calling a "maymorestack"
function in the prologue of any function that might call morestack
(whether it does at run time or not). The maymorestack function will
let us improve lock checking and add debugging modes that stress
function preemption and stack growth.
Passes toolstash-check -all (except on js/wasm, where toolstash
appears to be broken)
Fixes#48297.
Change-Id: I27197947482b329af75dafb9971fc0d3a52eaf31
Reviewed-on: https://go-review.googlesource.com/c/go/+/359795
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Adjust TypeDefn(), which is used by reportTypeLoop(), to work for nodes
with no Ntype set (which are all nodes in -G=3 mode). Normally,
reportTypeLoop() would not be called, because the types2 typechecker
would have already caught it. This is a possible way to report an
unusual type loop involving type params, which is not being caught by
the types2 type checker.
Updates #48962
Change-Id: I55edee46026eece2e8647c5b5b4d8dfb39eeb5f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/361398
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Don't inline a function fn that has no shape parameters, but is passed
at least one shape arg. This means we must be inlining a non-generic
function fn that was passed into a generic function, and can be called
with a shape arg because it matches an appropriate type parameter. But
fn may include an interface conversion (that may be applied to a shape
arg) that was not apparent when we first created the instantiation of
the generic function. We can't handle this if we actually do the
inlining, since we want to know all interface conversions immediately
after stenciling. So, we avoid inlining in this case.
Fixes#49309.
Change-Id: I7b8ab7b13e58fdb0111db91bc92a91d313f7c2c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/361260
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
After removing trivial wrapper types, the source needs to be updated
with new type, otherwise, it leads to mismatch between field offset and
the source type for selecting struct/array.
Fixes#49249
Change-Id: I26f9440bcb2e78bcf0617afc21d9d40cdbe4aca6
Reviewed-on: https://go-review.googlesource.com/c/go/+/360057
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Pointers to arrays can be used to cast from a slice. We need
the shape of such type params to be different so we can compile
those casts correctly.
This is kind of a big hammer to fix#49295. It would be nice to
only do this when we know there's a []T->*[N]T conversion.
Fixes#49295
Change-Id: Ibda33057fab2dd28162537aab0f1244211d68e3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/361135
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Add test for indexing on variables whose types are constrained to
various kinds of types.
Change-Id: I991eecfe39dba5d817c0fbe259ba558d4881ea84
Reviewed-on: https://go-review.googlesource.com/c/go/+/360867
Trust: Dan Scales <danscales@google.com>
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The types of the two interfaces should be equal, but they aren't.
We end up with multiple descriptors for a type when we need type
descriptors to be unique.
Fixes#49241
Change-Id: I8a6c70da541c6088a92a01392bc83b61cc130eba
Reviewed-on: https://go-review.googlesource.com/c/go/+/360134
Trust: Keith Randall <khr@golang.org>
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When seeing Key:Value expression in slice literal, the compiler only
needs to emit tmp var for the Value, not the whole expression.
Fixes#49240
Change-Id: I7bda3c796a93c0fa1974f7c5930f38025dfa665c
Reviewed-on: https://go-review.googlesource.com/c/go/+/360055
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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In case of reference to method call of an imported fully-instantiated
type, nameNode.Func will be nil causes checkFetchBody panic. To fix
this, make sure checkFetchBody is only called when Func is not nil.
Fixes#49246
Change-Id: I32e9208385a86d4600d8ebf6f5efd8fca571ea16
Reviewed-on: https://go-review.googlesource.com/c/go/+/360056
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Updated multiple tests in test/codegen/arithmetic.go to verify
on ppc64/ppc64le as well
Change-Id: I79ca9f87017ea31147a4ba16f5d42ba0fcae64e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/358546
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
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Currently, the compiler will emit any const that doesn't fit in an
int64 to go_asm.h like
#define const_stackPreempt constant.intVal{val:(*big.Int)(0xc000c06c40)}
This happens because dumpasmhdr formats the constant.Value using the
verb "%#v". Since constant.Value doesn't implement the GoString()
method, this just prints the Go-syntax representation of the value.
This happens to work for small integer constants, which go/constant
represents directly as an int64, but not for integer constants that
don't fit in an int64, which go/constant represents as a big.Int.
Make these constants usable by changing the formatting verb to "%v",
which will call the String() method, giving a reasonable result in all
cases.
Change-Id: I365eeb88c8acfc43ff377cc873432269bde3f541
Reviewed-on: https://go-review.googlesource.com/c/go/+/359954
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Use types2.Structure() to get single underlying type of typeparams, to
handle some unusual cases where a type param is constrained to a single
underlying struct or map type.
Fixes#48538
Change-Id: I289fb7b31d489f7586f2b04aeb1df74e15a9f965
Reviewed-on: https://go-review.googlesource.com/c/go/+/359335
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Fix two defer bugs related to adding/removing open defer entries.
The bugs relate to the way that we add and remove open defer entries
from the defer chain. At the point of a panic, when we want to start
processing defer entries in order during the panic process, we need to
add entries to the defer chain for stack frames with open defers, since
the normal fast-defer code does not add these entries. We do this by
calling addOneOpenDeferFrame() at the beginning of each time around the
defer loop in gopanic(). Those defer entries get sorted with other open
and non-open-coded defer frames.
However, the tricky part is that we also need to remove defer entries if
they end not being needed because of a recover (which means we are back
to executing the defer code inline at function exits). But we need
to deal with multiple panics and in-process defers on the stack, so we
can't just remove all open-coded defers from the the defer chain during
a recover.
The fix (and new invariant) is that we should not add any open-coded
defers to the defer chain that are higher up the stack than an open-coded
defer that is in progress. We know that open-coded defer will still be
run until completed, and when it is completed, then a more outer frame
will be added (if there is one). This fits with existing code in gopanic
that only removes open-coded defer entries up to any defer in progress.
These bugs were because of the previous inconsistency between adding and
removing open defer entries, which meant that stale defer entries could
be left on the list, in these unusual cases with both recursive
panics plus multiple independent (non-nested) cases of panic & recover.
The test for #48898 was difficult to add to defer_test.go (while keeping
the failure mode), so I added as a go/test/fixedbug test instead.
Fixes#43920
Updates #43941Fixes#48898
Change-Id: I593b77033e08c33094315abf8089fbc4cab07376
Reviewed-on: https://go-review.googlesource.com/c/go/+/356011
Trust: Dan Scales <danscales@google.com>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Austin Clements <austin@google.com>
We may revisit this decision in a future release. By disallowing this
for Go 1.18 we are ensuring that we don't lock in the generics design
in a place that may need to change later. (Type declarations are the
primary construct where it crucially matters what the underlying type
of a type parameter is.)
Comment out all tests that rely on this feature; add comments referring
to issue so we can find all places easily should we change our minds.
Fixes#45639.
Change-Id: I730510e4da66d3716d455a9071c7778a1e4a1152
Reviewed-on: https://go-review.googlesource.com/c/go/+/359177
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Now that we permit arbitrary types as constraints, we no longer need them.
For #48424
Change-Id: I15fef26a563988074650cb0801895b002c44148a
Reviewed-on: https://go-review.googlesource.com/c/go/+/359258
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Fixes#49110
Change-Id: I32c2cb26cca067a4a676ce4bbc3e51f1e0cdb259
Reviewed-on: https://go-review.googlesource.com/c/go/+/357959
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dan Kortschak <dan@kortschak.io>
Reviewed-by: Sebastien Binet <s@sbinet.org>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
For base generic type that is written to export file, we need to mark
all of its methods, include exported+unexported methods, as reachable,
so they can be available for instantiation if necessary. But markType
only looks for exported methods, thus causing the crash in #49143.
To fix this, we introduce new method p.markGeneric, to mark all methods
of the base generic type.
This issue has happend for a while (maybe since we add generic
import/export during go1.18 cycle), and was un-intentionally "fixed" in
CL 356254, when we agresssively call p.markEmbed(t). CL 357232 fixed
that wrong agressive behavior, thus reproduce the bug on tip.
Fixes#49143
Change-Id: Ie64574a05fffb282e9dcc8739df4378c5b6b0468
Reviewed-on: https://go-review.googlesource.com/c/go/+/358814
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
There were two main outer switch statements in node() that can just be
combined. Also, for simplicity, changed an IsCmp() conditional into just
another case in the switch statement.
Also, the inner OCALL switch statement had a bunch of fairly duplicate
cases. Combined the cases that all had no special semantics, into a
single default case calling transformCall().
In the OCALL case in dictPass(), got rid of a check for OFUNCINST (which
will always have been removed by this point). Also, eliminated an assert
that could cause unneded failures. transformCall() should always be
called if the node op is still OCALL, so no need to assert on the ops of
call.X.
Added an extra test in issue47078.go, to explicitly check for case where
the X argument of a call is a DOTTYPE.
Change-Id: Ifb3f812ce12820a4ce08afe2887f00f7fc00cd2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/358596
Trust: Dan Scales <danscales@google.com>
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To capture the fact that a method was called on a generic interface,
so we can make sure the linker doesn't throw away any implementations
that might be the method called.
See the comment in reflect.go for details.
Fixes#49049
Change-Id: I0be74b6e727c1ecefedae072b149f59d539dc1e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/357835
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
CL 357649 fixes inlining labeled FOR/RANGE loops,
we should do same translation for inlined SWITCH's label
Fixes#49145
Change-Id: I9a6f365f57e974271a1eb279b38e81f9b5148788
Reviewed-on: https://go-review.googlesource.com/c/go/+/358315
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
removePred and removeArg do different things. removePred moves the last
predecessor to index k, whereas removeArg slides all the args k or
greater down by 1 index.
Kind of unfortunate different behavior in things named similarly.
Fixes#49122
Change-Id: I9ae409bdac744e713f4c121f948e43db6fdc8542
Reviewed-on: https://go-review.googlesource.com/c/go/+/358117
Trust: Keith Randall <khr@golang.org>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Since CL 282892, functions are always compiled before closures. To do
that, when walking the closure, it is added to its outer function queue
for scheduling compilation later. Thus, a closure may be added to queue
more than once, causing the ICE dues to being compiled twice.
To fix this, catching the re-walking of the closure expression and do
not add it to the compilation queue.
Fixes#49029
Change-Id: I7d188e8f5b4d5c4248a0d8e6389da26f1084e464
Reviewed-on: https://go-review.googlesource.com/c/go/+/357960
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CL 356254 fixed crawling of embeddable types during inline. However, we
are too agressive, since when we call markEmbed for every type seen
during inlining function body. That leads to false positive that for a
non-embedded type, its unexported methods are also marked inline.
Instead, we should only look at struct type that we seen during inlining
function body, and calling markEmbed for all of its embedded fields.
Fixes#49094
Change-Id: I6ef9a8bf1fc649ec6bf75e4883f6031ec8560ba1
Reviewed-on: https://go-review.googlesource.com/c/go/+/357232
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
There is already a mechanism using inlgen to rename labels insided
inlined functions so that they are unique and don't clash with loops in
the outer function. This is used for OLABEL and OGOTO. Now that we are
doing inlining of OFOR loops, we need to do this translation for OBREAK,
OCONTINUE, and OFOR. I also added the translation for ORANGE loops, in
anticipation of a CL that will allow inlining of ORANGE for loops.
Fixes#49100
Change-Id: I2ccddc3350370825c386965f4a1e4bc54d3c369b
Reviewed-on: https://go-review.googlesource.com/c/go/+/357649
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Trust: Dan Scales <danscales@google.com>
In CL 327872, there's a fix for crawling of embeddable types directly
reached by the user, so all of its methods need to be re-exported. But
we missed the cased when an un-exported type may be reachable by
embedding in exported type. Example:
type t struct {}
func (t) M() {}
func F() interface{} { return struct{ t }{} }
We generate the wrapper for "struct{ t }".M, and when inlining call to
"struct{ t }".M makes "t.M" reachable.
It works well, and only be revealed in CL 327871, when we changed
methodWrapper to always call inline.InlineCalls, thus causes the crash
in #49016, which involve dot type in inlined function.
Fixes#49016
Change-Id: If174fa5575132da5cf60e4bd052f7011c4e76c5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/356254
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Change-Id: I2fca7a801c85ed93c002c23bfcb0cf9593f1bdf4
Reviewed-on: https://go-review.googlesource.com/c/go/+/356571
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
This CL addresses the 2nd part of the issue below.
- For types2, now use the same error messages as the compiler in this case.
- Make the mechanism for reporting clarifying error messages handle the case
where we don't have additional position information.
- Provide context information (type assertion vs type switch).
Fixes#49005.
Change-Id: I4eeaf4f0c3f2f8735b63993778f58d713fef21ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/356512
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Findley <rfindley@google.com>
In CL 354670, I copied some existing rules for convenience but forgot
to update the last rule which broke `GOAMD64=v3 ./make.bat`
Revive CL 354670
Change-Id: Ic1e2047c603f0122482a4b293ce1ef74d806c019
Reviewed-on: https://go-review.googlesource.com/c/go/+/356810
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Daniel Martí <mvdan@mvdan.cc>
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