Remove one of the many lookup variants.
Change-Id: I4095aa030da4227540badd6724bbf50b728fbe93
Reviewed-on: https://go-review.googlesource.com/38990
Reviewed-by: Dave Cheney <dave@cheney.net>
Previously the compiler rewrote constant division into OHMUL
operations, but that rewriting was moved to SSA in CL 37015. Now OHMUL
is unused, so we can get rid of it.
Change-Id: Ib6fc7c2b6435510bafb5735b3b4f42cfd8ed8cdb
Reviewed-on: https://go-review.googlesource.com/37750
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
mkbuiltin.go now generates builtin.go using go/ast instead of running
the compiler, so we don't need the -A flag anymore.
Passes toolstash -cmp.
Change-Id: Ifa70f4f3c9feae10c723cbec81a0a47c39610090
Reviewed-on: https://go-review.googlesource.com/31497
Reviewed-by: Robert Griesemer <gri@golang.org>
Reuse the same mechanisms for handling universal builtins like len to
handle unsafe.Sizeof, etc. Allows us to drop package unsafe's export
data, and simplifies some code.
Updates #17508.
Change-Id: I620e0617c24e57e8a2d7cccd0e2de34608779656
Reviewed-on: https://go-review.googlesource.com/31433
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Follow up to CL 29134. Generated with gofmt -r 'Nod -> nod', plus
three manual adjustments to the comments in syntax/parser.go
Change-Id: I02920f7ab10c70b6e850457b42d5fe35f1f3821a
Reviewed-on: https://go-review.googlesource.com/29136
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
After the removal of the old backend many types are no longer referenced
outside internal/gc. Make these functions private so that tools like
honnef.co/go/unused can spot when they become dead code. In doing so
this CL identified several previously public helpers which are no longer
used, so removes them.
This should be the last of the public functions.
Change-Id: I7e9c4e72f86f391b428b9dddb6f0d516529706c3
Reviewed-on: https://go-review.googlesource.com/29134
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
We already explicitly construct the "unsafe.Pointer" type in typeinit
because we need it for Types[TUNSAFEPTR]. No point in also having it
in builtin/unsafe.go if it just means (*importer).importtype needs to
fix it.
Change-Id: Ife8a5a73cbbe2bfcabe8b25ee4f7e0f5fd0570b4
Reviewed-on: https://go-review.googlesource.com/29082
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
These were a hack abstraction for before FuncType existed.
The result value from calling FuncType() could be saved, but this
maintains the current idiom of consistently using t.FuncType().foo
everywhere in case we choose to evolve the API further.
Change-Id: I81f19aaeab6fb7caa2d4da8bf0bbbc358ab970d0
Reviewed-on: https://go-review.googlesource.com/28150
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
The main check here is that liveness now crashes if it finds an instruction
using a variable that should be tracked but is not.
Comments and adjustments in nodarg to explain what's going on and
to remove the "-1" argument added a few months ago, plus a sketch
of a future simplification.
The need for n.Orig in the earlier CL seems to have been an intermediate
problem rather than fundamental: the new explanations in nodarg make
clear that nodarg is not causing the problem I thought, and in fact now
using n instead of n.Orig works fine in plive.go.
Change-Id: I3f5cf9f6e4438a6d27abac7d490e7521545cd552
Reviewed-on: https://go-review.googlesource.com/23450
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Instead of using TARRAY for both arrays and slices, create a new
TSLICE kind to handle slices.
Also, get rid of the "DDDArray" distinction. While kinda ugly, it
seems likely we'll need to defer evaluating the constant bounds
expressions for golang.org/issue/13890.
Passes toolstash/buildall.
Change-Id: I8e45d4900e7df3a04cce59428ec8b38035d3cc3a
Reviewed-on: https://go-review.googlesource.com/22329
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Many of Type's fields are etype-specific.
This CL organizes them into their own auxiliary types,
duplicating a few fields as necessary,
and adds an Extra field to hold them.
It also sorts the remaining fields for better struct packing.
It also improves documentation for most fields.
This reduces the size of Type at the cost of some extra allocations.
There's no CPU impact; memory impact below.
It also makes the natural structure of Type clearer.
Passes toolstash -cmp on all architectures.
Ideas for future work in this vein:
(1) Width and Align probably only need to be
stored for Struct and Array types.
The refactoring to accomplish this would hopefully
also eliminate TFUNCARGS and TCHANARGS entirely.
(2) Maplineno is sparsely used and could probably better be
stored in a separate map[*Type]int32, with mapqueue updated
to store both a Node and a line number.
(3) The Printed field may be removable once the old (non-binary)
importer/exported has been removed.
(4) StructType's fields field could be changed from *[]*Field to []*Field,
which would remove a common allocation.
(5) I believe that Type.Nod can be moved to ForwardType. Separate CL.
name old alloc/op new alloc/op delta
Template 57.9MB ± 0% 55.9MB ± 0% -3.43% (p=0.000 n=50+50)
Unicode 38.3MB ± 0% 37.8MB ± 0% -1.39% (p=0.000 n=50+50)
GoTypes 185MB ± 0% 180MB ± 0% -2.56% (p=0.000 n=50+50)
Compiler 824MB ± 0% 806MB ± 0% -2.19% (p=0.000 n=50+50)
name old allocs/op new allocs/op delta
Template 486k ± 0% 497k ± 0% +2.25% (p=0.000 n=50+50)
Unicode 377k ± 0% 379k ± 0% +0.55% (p=0.000 n=50+50)
GoTypes 1.39M ± 0% 1.42M ± 0% +1.63% (p=0.000 n=50+50)
Compiler 5.52M ± 0% 5.57M ± 0% +0.84% (p=0.000 n=47+50)
Change-Id: I828488eeb74902b013d5ae4cf844de0b6c0dfc87
Reviewed-on: https://go-review.googlesource.com/21611
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This allows us to get rid of Isptr and Issigned. Still some code to
clean up for Isint, Isfloat, and Iscomplex.
CL produced mechanically using gofmt -w -r.
Passes toolstash -cmp.
Change-Id: If4f807bb7f2b357288d2547be2380eb511875786
Reviewed-on: https://go-review.googlesource.com/21339
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Also give them more idiomatic Go names. Adding godocs is outside the
scope of this CL. (Besides, the method names almost all directly
parallel an underlying math/big.Int or math/big.Float method.)
CL prepared mechanically with sed (for rewriting mpint.go/mpfloat.go)
and gofmt (for rewriting call sites).
Passes toolstash -cmp.
Change-Id: Id76f4aee476ba740f48db33162463e7978c2083d
Reviewed-on: https://go-review.googlesource.com/20909
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Boolean expressions involving t.Thistuple were converted to use
t.Recv(), because it's a bit clearer and will hopefully reveal cases
where we could remove redundant calls to t.Recv() (in followup CLs).
The other cases were all converted to use t.Recvs().NumFields(),
t.Params().NumFields(), or t.Results().NumFields().
Change-Id: I4df91762e7dc4b2ddae35995f8dd604a52c09b09
Reviewed-on: https://go-review.googlesource.com/20796
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Switch TSTRUCT and TINTER to use Fields instead of Type, which wrings
out the remaining few direct uses of the latter.
Preparation for converting fields to use a separate "Field" type.
Passes toolstash/buildall.
Change-Id: I5a2ea7e159d0dde1be2c9afafc10a8f739d95743
Reviewed-on: https://go-review.googlesource.com/20675
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Move lexinit, typeinit, lexinit1, and lexfini into new universe.go
file, and give them a more idiomatic and descriptive API. No code
changes.
Change-Id: I0e9b25dcc86ad10f4b990dc02bd33477b488cc85
Reviewed-on: https://go-review.googlesource.com/20604
Reviewed-by: Robert Griesemer <gri@golang.org>
