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310 Commits

Author SHA1 Message Date
Russ Cox
ef46a9ddac gc: fix up floating point NaN comparisons 
Fixes #167.

R=ken2
https://golang.org/cl/155062
 2009-11-15 17:24:14 -08:00
Russ Cox
18ccbc69f8 tweak documentation of commands 
so that first sentence is better for cmd page.

live at http://r45:3456/cmd/

R=gri, r
http://go/go-review/1024034
 2009-11-09 11:45:15 -08:00
Ken Thompson
0eb2a79ff3 8g optimizer 
R=rsc
http://go/go-review/1025011
 2009-11-06 16:51:49 -08:00
Rob Pike
3fa379e797 document the gc go compilers. 
fix the usage message.

R=rsc
CC=go-dev
http://go/go-review/1016033
 2009-11-03 22:00:36 -08:00
Russ Cox
9dd2e1e30f nil pointer checks in 8g. 
fix nil pointer check in 6g.
was dereferencing after the ADD;
dereference before instead.

R=ken@golang.org
CC=iant
http://go/go-review/1016022
 2009-11-01 21:04:16 -08:00
Russ Cox
02fd255a14 bug162, over and over 
R=ken
OCL=35919
CL=35919
 2009-10-20 08:03:43 -07:00
Russ Cox
8fffa1d698 bug190. 
also eliminate float80 dregs

R=ken
OCL=35894
CL=35896
 2009-10-19 18:47:37 -07:00
Russ Cox
11d3805579 clean more 
R=r
DELTA=40  (9 added, 3 deleted, 28 changed)
OCL=35277
CL=35305
 2009-10-03 10:38:03 -07:00
Ken Thompson
2975308125 more inlining of sliceslice 
R=rsc
OCL=34871
CL=34871
 2009-09-21 18:23:16 -07:00
Russ Cox
cb49a999d1 move static init code from 6g into gc. 
hook up to 8g and 5g too.

R=ken
OCL=34768
CL=34768
 2009-09-17 19:15:54 -07:00
Russ Cox
2204cfddea fix bug206. 
delay calls to savex as long as possible.

R=ken
OCL=34535
CL=34546
 2009-09-10 17:33:01 -07:00
Ken Thompson
0631d65dc5 composit literal under 
init function context.
also moved composit literal
code from walk.c to sinit.c

R=rsc
OCL=34503
CL=34503
 2009-09-09 17:48:55 -07:00
Russ Cox
5438be4541 write-only variable _ 
R=ken
OCL=34465
CL=34470
 2009-09-08 23:16:19 -07:00
Ken Thompson
18f2e360a0 composit literals 
plateau - more to come

R=rsc
OCL=34413
CL=34413
 2009-09-05 20:32:24 -07:00
Rob Pike
d4903abeae use %L in listings so we see source line number in easy format 
R=ken
DELTA=9  (0 added, 0 deleted, 9 changed)
OCL=34309
CL=34311
 2009-09-03 10:24:38 -07:00
Rob Pike
9e85c790e5 fix initialization of noreturn 
R=ken
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=34283
CL=34283
 2009-09-02 17:14:30 -07:00
Russ Cox
6e8524be18 array index bug 
x[i]
x not addressable, i >= UINF
double evaluated i
second eval killed live registers

manifested as gob instability

R=ken
OCL=34097
CL=34099
 2009-08-30 18:47:48 -07:00
Ken Thompson
be219c5e9b removed debug print 
R=r
OCL=34087
CL=34087
 2009-08-30 11:36:42 -07:00
Ken Thompson
bc15b94181 sped up optimization by not optimizing 
very large functions.

R=r
OCL=34080
CL=34080
 2009-08-29 20:33:21 -07:00
Ken Thompson
e667e8a4f7 arraytoslice and some cleanup 
R=rsc
OCL=34058
CL=34058
 2009-08-28 15:44:24 -07:00
Ken Thompson
3983171b08 sliceslice bug 
R=rsc
OCL=34050
CL=34050
 2009-08-28 13:45:48 -07:00
Ken Thompson
47c568880d bug in sliceslice 
R=rsc
OCL=34047
CL=34047
 2009-08-28 13:32:09 -07:00
Ken Thompson
bf0130cc0f sliceslice inline 
R=rsc
OCL=34041
CL=34041
 2009-08-28 12:37:39 -07:00
Ken Thompson
c19c933f5a bug in arrayslice 
R=rsc
OCL=33987
CL=33987
 2009-08-27 14:59:26 -07:00
Ken Thompson
9bf597a210 inline slicearray 
R=rsc
OCL=33974
CL=33974
 2009-08-27 13:19:44 -07:00
Russ Cox
89f69bb3be gc: handle iface == nil in back end 
R=ken
OCL=33778
CL=33781
 2009-08-24 15:20:37 -07:00
Russ Cox
7b29dbb866 symbol bugs. 
do not emit unreachable data symbols.

R=austin
DELTA=103  (71 added, 4 deleted, 28 changed)
OCL=33325
CL=33622
 2009-08-20 17:33:28 -07:00
Russ Cox
8a45917f3d len and cap on chans 
R=ken
OCL=33599
CL=33599
 2009-08-20 11:12:04 -07:00
Russ Cox
ce9b379c90 no debug symbols for internal-only method types. 
now 15% overhead instead of 30% in binaries.

R=ken
OCL=33235
CL=33288
 2009-08-14 13:07:53 -07:00
Russ Cox
311c0b4807 6g/6l: add go type information to symbol table. 
archive size +70%
  binary size +30%

old

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  1487922 Aug 13 13:21 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng   995995 Aug 13 13:21 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg/
9.5M	/home/rsc/go/pkg/
wreck.mtv=;

new

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  2014390 Aug 13 14:25 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng  1268705 Aug 13 14:25 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg
 16M	/home/rsc/go/pkg
wreck.mtv=;

R=ken
OCL=33217
CL=33220
 2009-08-13 14:41:42 -07:00
Russ Cox
43f29e64a6 mechanism for putting go types into 6.out symbol table. 
no types yet.

R=ken
OCL=33142
CL=33146
 2009-08-12 18:16:24 -07:00
Russ Cox
dd5f32330c 6g: save all 64 bits of AX/DX 
8g: save AX/DX around div

R=ken
OCL=33094
CL=33096
 2009-08-12 13:18:27 -07:00
Russ Cox
3f91f80a21 8-bit div and mod 
R=ken
OCL=32975
CL=32975
 2009-08-10 12:46:23 -07:00
Ken Thompson
f70e285178 bug in int8 mod 
R=rsc
OCL=32971
CL=32971
 2009-08-10 11:20:33 -07:00
Ken Thompson
60238e25bf increase from 3 to 11 floating registers 
R=rsc
OCL=32947
CL=32947
 2009-08-09 16:42:21 -07:00
Ken Thompson
34f76b5de5 1. integer division by a constant done. 
2. moved functions from 6g to gc
for portability to other families.
3. added rotate-carry instructions to
peek and reg.

R=rsc
OCL=32946
CL=32946
 2009-08-09 15:16:06 -07:00
Ken Thompson
812f06b3ca another plateau - almost done 
only need to fix up certain
denominators

R=rsc
OCL=32928
CL=32928
 2009-08-08 16:53:21 -07:00
Ken Thompson
07044ba6e5 plateau in divide by a constant 
still to do - overflow, mod

R=rsc
OCL=32927
CL=32927
 2009-08-08 15:26:09 -07:00
Ken Thompson
8b8a2bd945 more work on divide by constant. 
no real change -- disabled because of bugs

R=rsc
OCL=32923
CL=32923
 2009-08-07 20:21:04 -07:00
Ken Thompson
f1baf78247 divide by a constant power of 2 
R=rsc
OCL=32858
CL=32858
 2009-08-06 22:33:12 -07:00
Russ Cox
ebdbbe0f49 fix amd64 build 
R=ken
OCL=32771
CL=32771
 2009-08-05 00:11:24 -07:00
Russ Cox
a121410541 make Syms smaller. 
collapse a lot of duplication in dcl.c
switch to NodeList* from Dcl*

R=ken
OCL=32770
CL=32770
 2009-08-04 22:59:23 -07:00
Russ Cox
4dec8ef35a get function calls out of the way before 
allocating registers in shift and div.

fix behavior when res == a reserved register.

R=ken
OCL=32765
CL=32767
 2009-08-04 19:16:57 -07:00
Russ Cox
d169dcee3b fix division bug 
R=ken
OCL=32760
CL=32760
 2009-08-04 17:59:10 -07:00
Russ Cox
b754b4348f delete some code from walkexpr that is now 
handled by typecheck.

second switch is gone

move floating point minus into back end

R=ken
OCL=32558
CL=32558
 2009-07-30 18:56:44 -07:00
Russ Cox
ff3a73b407 typechecking checkpoint. 
started to move typechecking to another file.
can build entire tree still, but lots of work
is duplicated.  much to clean up.

R=ken
OCL=32536
CL=32543
 2009-07-30 16:53:08 -07:00
Russ Cox
517e3457cc fix build on amd64 
R=ken
OCL=32521
CL=32521
 2009-07-30 11:03:58 -07:00
Russ Cox
2946069e3f break and continue fixes 
labeled break/continue was using
first loop with any label,
not first loop with the right label.

R=ken
OCL=32453
CL=32458
 2009-07-29 14:49:01 -07:00
Phil Pennock
d6f89c69c4 Support use of $GOBINDIR to override $HOME/bin 
R=r,gri,rsc
APPROVED=rsc
DELTA=53  (12 added, 6 deleted, 35 changed)
OCL=31822
CL=32282
 2009-07-28 11:23:24 -07:00
Russ Cox
30228a3bc6 avoid register computing len(x), cap(x) 
for slice or string x.

R=ken
OCL=32249
CL=32249
 2009-07-27 15:55:27 -07:00
Russ Cox
db508ccbff baby step: const decls can refer to future 
consts in the same factored block

	const (
		X = Y;
		Y = 2;
	)

R=ken
OCL=31782
CL=31782
 2009-07-17 13:38:16 -07:00
Russ Cox
e52e9ca82e another step toward eliminating forward declarations. 
introduce NodeList* type in compiler to replace OLIST.
this clarifies where lists can and cannot occur.
list append and concatenation are now cheap.
the _r rules are gone from yacc.
rev and unrev are gone.
no more lists of lists.

the representation of assignments is a bit clunkier.
split into OAS (1=1) and OAS2 (2 or more on one side).

delete dead chanrecv3 code.

delay construction of func types.

R=ken
OCL=31745
CL=31762
 2009-07-17 01:00:44 -07:00
Russ Cox
a6799963ef update 6g to new REGARG convention. 
silence gcc warning.

R=ken
OCL=31583
CL=31583
 2009-07-13 23:30:30 -07:00
Russ Cox
541e638f9b 6g, 8g: generate data structures for new reflect interface (CL 31107) 
R=ken
OCL=31122
CL=31278
 2009-07-07 11:03:04 -07:00
Russ Cox
2acbc37166 various 6g cleanup: 
* give genwrapper and genembedtramp the same signature.
* move duint8, duint16, duint32, duint64, duintptr into gc.
* tidy genwrapper.
* bug involving struct field symbols in signature list.
  (hash-order dependent so hard to trigger)
* new Type print format %#-T like %#T but omits
  names on function arguments.

R=ken
OCL=31237
CL=31237
 2009-07-06 22:31:20 -07:00
Russ Cox
0aef57e37f fix a 6g crash after type errors. 
do not bother warning about marks left
on stack after syntax errors.

leave OCONV nodes in tree to avoid type errors
arising from multiple walks.

R=ken
OCL=30639
CL=30662
 2009-06-23 15:30:59 -07:00
Russ Cox
e9e388412c 6g: add TODO about float constants back 
R=ken
OCL=29984
CL=29997
 2009-06-06 19:27:30 -07:00
Russ Cox
f1f970ad21 minor cleanup, 64-bit /= and %= on 32-bit 
R=ken
OCL=29806
CL=29808
 2009-06-02 23:21:58 -07:00
Ken Thompson
1c7bee0567 bug 155 
R=r
OCL=29619
CL=29619
 2009-05-29 14:42:24 -07:00
Russ Cox
3aa006b8cd better 64-bit handling in 8g. 
fewer moves, fewer stupid LEALs.
powser1 runs (with evaln commented out).
beginnings of floating point.

R=ken
OCL=29540
CL=29543
 2009-05-28 15:48:47 -07:00
Russ Cox
e81d97ea84 clean up gmove: 
* conversions all in one place.
	* no separate load, store phases;
	  direct memory addressing when possible
	  (this is the x86 after all!).
	  avoids extra registers, extra MOVQs.
	* fixes int32 -> uint64 bug
	  (was zero-extending)

R=ken
OCL=29482
CL=29484
 2009-05-27 23:55:14 -07:00
Ken Thompson
798b19bf77 improvement in registerization 
R=r
OCL=29317
CL=29317
 2009-05-23 16:36:43 -07:00
Ken Thompson
4238b18344 1. check for dups in complex literals 
structtype{a:1, a:2}
   maptypetype{"xx":1, "xx":2}
   arraytypetype{5:1, 5:2}
2. bug in registerization concerning
   alias of a struct and one of its elements
3. code optimization of struct.field
   (which exposed bug in 2)

R=r
OCL=29315
CL=29315
 2009-05-23 15:34:29 -07:00
Ken Thompson
bba10b3f49 some array init bugs 
renamed 6g/(gen|align|obj).c

R=r
OCL=29205
CL=29205
 2009-05-21 15:44:06 -07:00
Ken Thompson
a016081f43 added key:val extension to 
structure and array literals

R=r
OCL=29190
CL=29190
 2009-05-21 13:46:07 -07:00
Ken Thompson
da49bfe664 static initialization of strings 
R=r
OCL=29036
CL=29036
 2009-05-19 13:37:36 -07:00
Ken Thompson
b91a043d02 static initialization of slices 
R=r
OCL=29016
CL=29016
 2009-05-18 22:11:22 -07:00
Ken Thompson
62231e91d0 static initialization with DATA statements 
structs and arrays are done
slices and maps are yet to do

R=r
OCL=28977
CL=28977
 2009-05-17 19:16:16 -07:00
Ken Thompson
52b0f77bf9 static initialization 
structure set up - no change yet

R=r
OCL=28966
CL=28966
 2009-05-16 13:29:08 -07:00
Russ Cox
b3533dfd72 6g: 
new type equality restrictions
	better handling of renamed packages
	"sys" is no longer available to programs

R=ken
OCL=28553
CL=28578
 2009-05-08 15:40:31 -07:00
Russ Cox
d4fa253837 eqtype(t1, t2, 0) => eqtype(t1, t2) 
R=ken
OCL=28559
CL=28562
 2009-05-08 14:40:38 -07:00
Russ Cox
5a67ea3883 6g: simplify trampoline by postponing load. 
TEXT tramp
		MOVQ 8(SP), AX
		ADDQ $40, AX
		MOVQ AX, 8(SP)
		JMP oldfunc

	is now

	TEXT tramp
		ADDQ $40, 8(SP)
		JMP oldfunc

	and if s/40/0/, then it simplifies to

	TEXT tramp
		JMP oldfunc

	(the tramp is still needed to satisfy
	symbol references from other object files)

R=ken
OCL=28377
CL=28381
 2009-05-06 17:06:06 -07:00
Russ Cox
83cd4ee070 6g: generate string data as individual symbols, 
so that 6l can discard strings used by dead code.
also, for short strings, generate DUPOK global
symbols so that references to, say, "%s: %s" in
multiple files result in only a single symbol.

R=ken
OCL=28361
CL=28361
 2009-05-06 13:47:40 -07:00
Ken Thompson
567a7bf664 more code optimization 
1. dont clear external and heap objects
2. propagate constant assignment

R=r
OCL=28254
CL=28254
 2009-05-04 21:48:46 -07:00
Ken Thompson
a5a878986c more code fiddling 
R=r
OCL=28201
CL=28201
 2009-05-03 15:17:03 -07:00
Ken Thompson
91ce0ef8f3 bug 139 
R=r
OCL=27987
CL=27987
 2009-04-28 13:52:56 -07:00
Ben Eitzen
155ec1d904 Clear upper bits of 64-bit indexing register when using types smaller than 64 bits. 
APPROVED=ken
OCL=27811
CL=27823
 2009-04-23 18:23:34 -07:00
Ken Thompson
c18db5aa18 bug in shift of longer operand 
by a shorter operand. the bits
in the difference were not cheared.

R=r
OCL=27705
CL=27705
 2009-04-21 19:38:58 -07:00
Ken Thompson
f9854978e2 bug 142 
order of evaluation && and ||

R=r
OCL=27294
CL=27294
 2009-04-09 19:11:24 -07:00
Ken Thompson
3657061550 change representation of strings 
R=r
OCL=27293
CL=27293
 2009-04-09 18:16:21 -07:00
Russ Cox
b199035ba8 move tiny gsubr functions together at the top of the file. 
delete unused mkenam file

R=ken
OCL=26940
CL=26940
 2009-03-31 00:19:38 -07:00
Russ Cox
441da9af0d fix build (moved decl to go.h earlier 
and changed vlong to int64).

R=ken
OCL=26934
CL=26934
 2009-03-30 21:39:10 -07:00
Russ Cox
5e792b6c09 move portable object routines (especially 
signature generation) into gc.

R=ken
OCL=26933
CL=26933
 2009-03-30 21:31:29 -07:00
Russ Cox
bac922c6e1 move portable code generation (basic statements) to gc. 
R=ken
OCL=26929
CL=26929
 2009-03-30 19:15:07 -07:00
Russ Cox
d30285a6f5 move some portable pieces of 6g/gsubr.c into gc/subr.c 
int	brcom(int);
	int	brrev(int);
	void	setmaxarg(Type*);
	Sig*	lsort(Sig*, int(*)(Sig*, Sig*));
	int	dotoffset(Node*, int*, Node**);
	void	stringpool(Node*);
	void	tempname(Node*, Type*);

R=ken
OCL=26922
CL=26922
 2009-03-30 17:52:21 -07:00
Russ Cox
e5ba266e93 delete dregs: inarggen, genpanic, regret 
R=ken
OCL=26916
CL=26918
 2009-03-30 17:15:54 -07:00
Russ Cox
8e54729b5a move alignment calculations into gc 
R=ken
OCL=26914
CL=26914
 2009-03-30 17:09:28 -07:00
Russ Cox
531f242f5d move bits.c from 6g to gc 
R=ken
OCL=26909
CL=26909
 2009-03-30 16:13:11 -07:00
Ken Thompson
0f469a99a3 binary search on type switches. 
new feature 'case nil:' in type switch
will match iff the interface is nil.

R=r
OCL=26404
CL=26404
 2009-03-17 13:58:38 -07:00
Ken Thompson
5136a9e1f7 change format of Sigt and Sigi 
to allow room for type hash
needed for log-time type switch.

R=r
OCL=26354
CL=26354
 2009-03-16 15:27:08 -07:00
Russ Cox
8f194bf5ff make 6g constants behave as ken proposes. (i hope.) 
various bug fixes and tests involving constants.

test/const1.go is the major new test case.

R=ken
OCL=26216
CL=26224
 2009-03-12 19:04:38 -07:00
Ken Thompson
48f6b516e2 bug 137 
R=r
OCL=26142
CL=26142
 2009-03-11 16:25:45 -07:00
Ken Thompson
0c4f4587d7 bug with interaction of variables 
declared in cases and heap allocation

R=r
OCL=26064
CL=26064
 2009-03-10 16:49:34 -07:00
Ken Thompson
bf983477a2 new switch implementation 
in preparation of type switch.
no functional change (yet).

R=r
OCL=25784
CL=25788
 2009-03-05 15:49:34 -08:00
Ken Thompson
751d13cbce bug 130 (go/defer) interface.method() 
R=r
OCL=25356
CL=25356
 2009-02-23 22:43:04 -08:00
Ken Thompson
56003374d3 change array padding in structures 
to pad to size of element rather
than size of array.

R=r
OCL=24641
CL=24641
 2009-02-07 13:31:34 -08:00
Russ Cox
0970c46863 closures - 6g support 
R=ken
OCL=24501
CL=24566
 2009-02-06 13:47:10 -08:00
Russ Cox
f61639d4e2 6g return struct fix: 
make t->width of funarg struct be width of struct.

emit MOVSL for 4-byte copy.

R=ken
OCL=24108
CL=24111
 2009-02-02 13:41:38 -08:00
Russ Cox
7b6bdfb735 two uses of uninitialized memory, 
picked up by valgrind.
fixes test/escape.go on linux.

R=ken
OCL=23971
CL=23971
 2009-01-30 15:11:46 -08:00
Russ Cox
122ed3e988 print format bug 
R=ken
OCL=23965
CL=23965
 2009-01-30 14:54:49 -08:00