Commit graph

18 commits

Author SHA1 Message Date
Josh Bleecher Snyder
75883bae28 cmd/internal/gc: convert yet more Node fields to bools
Convert Embedded, Method, and Colas to bools.

I believe that this is the last of the Node fields
that can be trivially converted to bools.

No functional changes. Passes toolstash -cmp.

Change-Id: I81962ee47866596341fc60d24d6959c20cd7fc1c
Reviewed-on: https://go-review.googlesource.com/8440
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-04-07 03:10:30 +00:00
Dave Cheney
01d005c616 cmd/8g, cmd/internal/gc: clean up GO386 handling
This change cleans up some of the uglyness introduced in 8fc73a39ef
by moving the gc.Use_sse into the gc.Arch struct and adjusting its
zero value to be more useful.

Change-Id: I26ff5d9ac57b3f25e936519e443de6583cdafa56
Reviewed-on: https://go-review.googlesource.com/7994
Reviewed-by: Russ Cox <rsc@golang.org>
2015-04-02 20:44:20 +00:00
Josh Bleecher Snyder
3ed9e4ca3c cmd/internal/gc: unembed Node.Func
This is a follow-up to CL 7360.

It was generated with eg and gofmt -r.

The only manual changes are the unembedding in syntax.go
and backporting changes from y.go to go.y.

Passes toolstash -cmp.

Change-Id: I3d6d06ecb659809a4bc8592395d5b9a18967218e
Reviewed-on: https://go-review.googlesource.com/8053
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
2015-04-01 18:21:22 +00:00
Josh Bleecher Snyder
b09925b31d cmd/5g etc: merge simple case expressions onto fewer lines
The c2go translation left a lot of case expressions on separate lines.
Merge expressions onto single lines subject to these constraints:

* Max 4 clauses, all literals or names
* Don't move expressions with comments

The change was created by running http://play.golang.org/p/yHajs72h-g:

$ mergecase cmd/internal/{ld,gc,obj}/*.go cmd/internal/obj/*/*.go

Passes toolstash -cmp.

Change-Id: Iba41b390d302e5486e5dc6ba7599a92270676556
Reviewed-on: https://go-review.googlesource.com/7593
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
2015-04-01 17:27:22 +00:00
Dave Cheney
8fc73a39ef cmd/8g, cmd/internal/gc: fix GO386=387 build
Adjust Thearch.FREG_MIN/MAX when using non sse2 mode in 8g.

Also, gc.Use_sse is treated as a bool, so make it a bool.

Change-Id: I840411605344bb31c32f492b3e6729166c084f0c
Reviewed-on: https://go-review.googlesource.com/7993
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
2015-03-24 21:57:54 +00:00
Russ Cox
b115c35ee3 cmd/internal/gc: move cgen, regalloc, et al to portable code
This CL moves the bulk of the code that has been copy-and-pasted
since the initial 386 port back into a shared place, cutting 5 copies to 1.

The motivation here is not cleanup per se but instead to reduce the
cost of introducing changes in shared concepts like regalloc or general
expression evaluation. For example, a change after this one will
implement x.(*T) without a call into the runtime. This CL makes that
followup work 5x easier.

The single copy still has more special cases for architecture details
than I'd like, but having them called out explicitly like this at least
opens the door to generalizing the conditions and smoothing out
the distinctions in the future.

This is a LARGE CL. I started by trying to pull in one function at a time
in a sequence of CLs and it became clear that everything was so
interrelated that it had to be moved as a whole. Apologies for the size.

It is not clear how many more releases this code will matter for;
eventually it will be replaced by Keith's SSA work. But as noted above,
the deduplication was necessary to reduce the cost of working on
the current code while we have it.

Passes tests on amd64, 386, arm, and ppc64le.
Can build arm64 binaries but not tested there.
Being able to build binaries means it is probably very close.

Change-Id: I735977f04c0614f80215fb12966dfe9bbd1f5861
Reviewed-on: https://go-review.googlesource.com/7853
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-03-20 20:03:52 +00:00
Russ Cox
532ccae154 cmd/internal/obj: replace Addr.U struct {...} with Val interface{}
An interface{} is more in the spirit of the original union.
By my calculations, on 64-bit systems this reduces
Addr from 120 to 80 bytes, and Prog from 592 to 424 bytes.

Change-Id: I0d7b0981513c2a3c94c9ac76bb4f8816485b5a3c
Reviewed-on: https://go-review.googlesource.com/7744
Reviewed-by: Rob Pike <r@golang.org>
2015-03-20 04:47:08 +00:00
Russ Cox
8b9a3d4752 cmd/internal/gc: change Naddr to take a *Addr to fill in
This allows gins to let Naddr fill in p.From and p.To directly,
avoiding the zeroing and copying of a temporary.

Change-Id: I96d120afe266e68f94d5e82b00886bf6bd458f85
Reviewed-on: https://go-review.googlesource.com/7742
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-03-20 00:02:52 +00:00
Aram Hăvărneanu
02c1a9d87d cmd/7g: add ARM64 Go compiler, based on 9g
No peep optimizer yet.

Change-Id: Ifa5f993cd6ac5e34783c0df41faf772fbce96ae2
Reviewed-on: https://go-review.googlesource.com/7049
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:26 +00:00
Michael Hudson-Doyle
6582d1cf8b cmd/internal/gc, etc: remove canemitecode of Naddr
The argument is never consulted apart from passing it to recursive
calls.  So delete it.

Change-Id: Ia15eefb6385b3c99ea4def88f564f4e5a94c68ab
Reviewed-on: https://go-review.googlesource.com/7032
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-13 22:56:42 +00:00
Keith Randall
cd5b144d98 runtime,reflect,cmd/internal/gc: Fix comments referring to .c/.h files
Everything has moved to Go, but comments still refer to .c/.h files.
Fix all of those up, at least for these three directories.

Fixes #10138

Change-Id: Ie5efe89b247841e0b3f82aac5256b2c606ef67dc
Reviewed-on: https://go-review.googlesource.com/7431
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-11 20:19:43 +00:00
Dave Cheney
44e903158f cmd/internal/gc: more Node cleanups
More Node cleanups, these ones touch go.y.

- convert Node.Implicit to bool
- convert Node.Used to bool

Change-Id: I85c7ff9e66cee7122b560adedc995166c874f2f2
Reviewed-on: https://go-review.googlesource.com/7124
Reviewed-by: Keith Randall <khr@golang.org>
2015-03-09 05:01:14 +00:00
Dave Cheney
4a174ee4be cmd/internal/gc: make Node.Readonly a bool
Convert Node.Readonly to a bool.

Change-Id: Ide9f6f657f498d70d7b9544a38046325d7c82dc8
Reviewed-on: https://go-review.googlesource.com/6809
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-06 06:47:25 +00:00
Russ Cox
cdb7d7dcc2 cmd/5l etc: restore comments lost during C -> Go conversion
It appears that c2go dropped comments inside struct { ... } and enum { ... }.
Restore them.

Identified missing comments by checking for comments present
in the C code but not the Go code, made a list, and then reapplied
with some mechanical help.

Missing comment finder: http://play.golang.org/p/g6qNUAo1Y0

Change-Id: I323ab45c7ef9d51e28eab3b699eb14bee1eef66b
Reviewed-on: https://go-review.googlesource.com/6899
Reviewed-by: Rob Pike <r@golang.org>
2015-03-05 21:49:39 +00:00
Russ Cox
4492811c05 cmd/internal/gc: manual goto removal + grind to move var decls
Also change gc.Naddr to return the Addr instead of filling it in.

Change-Id: I98a86705d23bee49626a12a042a4d51cabe290ea
Reviewed-on: https://go-review.googlesource.com/6601
Reviewed-by: Rob Pike <r@golang.org>
2015-03-03 20:33:57 +00:00
Russ Cox
382b44eb7c [dev.cc] cmd/5g etc: code cleanup: delay var decls and eliminate dead code
Ran rsc.io/grind rev 6f0e601 on the source files.

The cleanups move var declarations as close to the use
as possible, splitting disjoint uses of the var into separate
variables. They also remove dead code (especially in
func sudoaddable), which helps with the var moving.

There's more cleanup to come, but this alone cuts the
time spent compiling html/template on my 2013 MacBook Pro
from 3.1 seconds to 2.3 seconds.

Change-Id: I4de499f47b1dd47a560c310bbcde6b08d425cfd6
Reviewed-on: https://go-review.googlesource.com/5637
Reviewed-by: Rob Pike <r@golang.org>
2015-02-23 21:36:06 +00:00
Russ Cox
dc7b54bed2 [dev.cc] cmd/internal/obj, cmd/internal/gc, new6g: reconvert
Reconvert using rsc.io/c2go rev 27b3f59.

Changes to converter:
 - fatal does not return, so no fallthrough after fatal in switch
 - many more function results and variables identified as bool
 - simplification of negated boolean expressions

Change-Id: I3bc67da5e46cb7ee613e230cf7e9533036cc870b
Reviewed-on: https://go-review.googlesource.com/5171
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-02-20 00:17:03 +00:00
Russ Cox
8c195bdf12 [dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc
First draft of converted Go compiler, using rsc.io/c2go rev 83d795a.

Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3
Reviewed-on: https://go-review.googlesource.com/4851
Reviewed-by: Rob Pike <r@golang.org>
2015-02-17 23:28:51 +00:00