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>
Set TYPE_BRANCH for x(PC) in the parser and the assembler has less work to do.
This also makes the operand test handle -4(PC) correctly.
Also add a special test case for AX:DX, which should be fixed in obj really.
Change-Id: If195e3a8cf3454a73508633e9b317d66030da826
Reviewed-on: https://go-review.googlesource.com/5071
Reviewed-by: Russ Cox <rsc@golang.org>
Generated by reducing all the amd64 operands in the core.
Will add 386 and ARM later; this is a trial balloon.
NOTE: There is at least one anomaly: AX:DX doesn't print correctly in this situation.
Change-Id: I9f327c1890b100e3edb7b1b2a1c01f3e4b798f43
Reviewed-on: https://go-review.googlesource.com/4967
Reviewed-by: Russ Cox <rsc@golang.org>
Apparently when ARM stops at a GDB breakpoint, it appears to be in
syscall.Syscall. The "info goroutines" test expected it to be in a
runtime function. Since this isn't fundamental to the test, simply
tweak the test's regexp to make sure "info goroutines" prints some
running goroutine with an active M, but don't require it to be in any
particular function.
Change-Id: Iba2618b46d3dc49cef62ffb72484b83ea7b0317d
Reviewed-on: https://go-review.googlesource.com/5060
Reviewed-by: Dave Cheney <dave@cheney.net>
All of the other memory-related source files start with "m". Keep up
the tradition.
Change-Id: Idd88fdbf2a1453374fa12109b949b1c4d149a4f8
Reviewed-on: https://go-review.googlesource.com/4853
Reviewed-by: Minux Ma <minux@golang.org>
Rather than reaching in to slices directly in the slice pretty
printer, use the newly introduced SliceValue wrapper.
Change-Id: Ibb25f8c618c2ffb3fe1a8dd044bb9a6a085df5b7
Reviewed-on: https://go-review.googlesource.com/4936
Reviewed-by: Minux Ma <minux@golang.org>
"info goroutines" is failing because it hasn't kept up with changes in
the 1.5 runtime. This fixes three issues preventing "info goroutines"
from working. allg is no longer a linked list, so switch to using the
allgs slice. The g struct's 'status' field is now called
'atomicstatus', so rename uses of 'status'. Finally, this was trying
to parse str(pc) as an int, but str(pc) can return symbolic
information after the raw hex value; fix this by stripping everything
after the first space.
This also adds a test for "info goroutines" to runtime-gdb_test, which
was previously quite skeletal.
Change-Id: I8ad83ee8640891cdd88ecd28dad31ed9b5833b7a
Reviewed-on: https://go-review.googlesource.com/4935
Reviewed-by: Minux Ma <minux@golang.org>
R15 is the real register. PC is a pseudo-register that we are making
illegal in this context as part of the grand assembly unification.
Change-Id: Ie0ea38ce7ef4d2cf4fcbe23b851a570fd312ce8d
Reviewed-on: https://go-review.googlesource.com/4966
Reviewed-by: Minux Ma <minux@golang.org>
Handle the special name of R10 on the ARM - it's g - when it appears
in a register list [R0, g, R3]. Also simplify the pseudo-register parsing
a little.
Should fix the ARM build.
Change-Id: Ifcafc8195dcd3622653b43663ced6e4a144a3e51
Reviewed-on: https://go-review.googlesource.com/4965
Reviewed-by: Russ Cox <rsc@golang.org>
Mishandled the complex addressing mode in masks<>(SB)(CX*8)
as a casualty of the ARM work. Fix by backing all the flows up to
the state where registerIndirect is always called with the input
sitting on the opening paren.
With this, build passes for me with linux-arm, linux-386, and linux-amd64.
Change-Id: I7cae69a6fa9b635c79efd93850bd1e744b22bc79
Reviewed-on: https://go-review.googlesource.com/4964
Reviewed-by: Russ Cox <rsc@golang.org>
A consequence of the ARM work overlooked that SP is a real register
on x86, so we need to detect it specially.
This will be done better soon, but this is a fast fix for the build.
Change-Id: Ia30d111c3f42a5f0b5f4eddd4cc4d8b10470c14f
Reviewed-on: https://go-review.googlesource.com/4963
Reviewed-by: Russ Cox <rsc@golang.org>
The tools have been fixed to not do this, but verifyAsm depends on this
being fixed.
TBR=rsc
Change-Id: Ia8968cc803b3498dfa2f98188c6ed1cf2e11c66d
Reviewed-on: https://go-review.googlesource.com/4962
Reviewed-by: Rob Pike <r@golang.org>
There are many peculiarites of the ARM architecture that require work:
condition codes, new instructions, new instruction arg counts, and more.
Rewrite the parser to do a cleaner job, flowing left to right through the
sequence of elements of an operand.
Add ARM to arch.
Add ARM-specific details to the arch in a new file, internal/arch/arm.
These are probably better kept away from the "portable" asm. However
there are some pieces, like MRC, that are hard to disentangle. They
can be cleaned up later.
Change-Id: I8c06aedcf61f8a3960a406c094e168182d21b972
Reviewed-on: https://go-review.googlesource.com/4923
Reviewed-by: Russ Cox <rsc@golang.org>
Because text/scanner hides the spaces, the lexer treated
#define A(x)
and
#define A (x)
the same, but they are not: the first is an argument with macros, the
second is a simple one-word macro whose definition contains parentheses.
Fix this by noticing the relative column number as we move from A to (.
Hacky but simple.
Also add a helper to recognize the peculiar ARM shifted register operators.
Change-Id: I2cad22f5f1e11d8dad40ad13955793d178afb3ae
Reviewed-on: https://go-review.googlesource.com/4872
Reviewed-by: Russ Cox <rsc@golang.org>
This just adds test cases. Optimizing CMYK draws will be a follow-up
change.
Change-Id: Ic0d6343d420cd021e21f88623ad7182e93017da9
Reviewed-on: https://go-review.googlesource.com/4941
Reviewed-by: Rob Pike <r@golang.org>
We can use processor architecture or hardware platform as part of
hostname and it leads to misconfiguration of GOHOSARCH.
For example,
$ uname -m -v
FreeBSD 10.1-RELEASE-p5 #0: Tue Jan 27 08:52:50 UTC 2015 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386
Change-Id: I499efd98338beff6a27c03f03273331ecb6fd698
Reviewed-on: https://go-review.googlesource.com/4944
Reviewed-by: Minux Ma <minux@golang.org>
There is currently no way to ignore signals using the os/signal package.
It is possible to catch a signal and do nothing but this is not the same
as ignoring it. The new function Ignore allows a set of signals to be
ignored. The new function Reset allows the initial handlers for a set of
signals to be restored.
Fixes#5572
Change-Id: I5c0f07956971e3a9ff9b9d9631e6e3a08c20df15
Reviewed-on: https://go-review.googlesource.com/3580
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The new testdata was created by:
convert video-001.png -colorspace cmyk video-001.cmyk.jpeg
video-001.cmyk.jpeg was then converted back to video-001.cmyk.png via
the GIMP. ImageMagick (convert) wasn't used for this second conversion
because IM's default color profiles complicates things.
Fixes#4500.
Change-Id: Ibf533f6a6c7e76883acc493ce3a4289d7875df3f
Reviewed-on: https://go-review.googlesource.com/4801
Reviewed-by: Rob Pike <r@golang.org>
Change 85e7bee introduced a bug:
it marks map buckets as noscan when key and val do not contain pointers.
However, buckets with large/outline key or val do contain pointers.
This change takes key/val size into consideration when
marking buckets as noscan.
Change-Id: I7172a0df482657be39faa59e2579dd9f209cb54d
Reviewed-on: https://go-review.googlesource.com/4901
Reviewed-by: Keith Randall <khr@golang.org>
Some rounding modes are affected by the sign of the value to
be rounded. Make sure the sign is set before round is called.
Added tests (that failed before the fix).
Change-Id: Idd09b8fcbab89894fede0b9bc922cda5ddc87930
Reviewed-on: https://go-review.googlesource.com/4876
Reviewed-by: Rob Pike <r@golang.org>
e.g. ·Name instead of package·Name for automatic stack map to
be applied from its Go prototype.
The underlying reason is that liblink look up name with suffix
".args_stackmap" for the stackmap coming from its Go prototype,
but all the Go functions are named "".Name as this stage. Thus
an assembly function named package·Name will never find its
stackmap, which is named "".package.Name.args_stackmap.
Perhaps cmd/vet should give a warning for this.
Change-Id: I10d154a73ec969d574d20af877f747424350fbd1
Reviewed-on: https://go-review.googlesource.com/2588
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Also: remove NewFloat - not needed anymore. Work-around for places
where has been used so far:
NewFloat(x, prec, mode) === new(Float).SetMode(mode).SetPrec(prec).SetFloat64(x)
However, if mode == ToNearestEven, SetMode is not needed. SetPrec
is needed if the default precision (53 after SetFloat64) is not
adequate.
TBR adonovan
Change-Id: Ifda12c479ba157f2dea306c32b47c7afbf31e759
Reviewed-on: https://go-review.googlesource.com/4842
Reviewed-by: Robert Griesemer <gri@golang.org>
Also:
- make representation more flexible (no need to store trailing 0 digits to match precision)
- simplify rounding as a consequence
- minor related fixes
TBR adonovan
Change-Id: Ie91075990688b506d28371ec3b633b8267397ebb
Reviewed-on: https://go-review.googlesource.com/4841
Reviewed-by: Rob Pike <r@golang.org>
