1) hack regalloc to leave R9 (m) and R10 (g) alone.
the real fix is tricker, but this gets us running
2) fix up the few places in the package sources that
the shortage of registers affects, by simplifying
some expressions.

all of this should be reverted when the right fix is in.

Fixes #1084.

R=rsc
CC=golang-dev
https://golang.org/cl/2132046

R=rsc
CC=golang-dev
https://golang.org/cl/2127045

The gccgo compiler does not always generate a "cannot use"
error message.  It only does so for named types.  Maybe that
should change, but in any case it is irrelevant for this test.

assign1.go:105:4: error: incompatible types in assignment (cannot use type A1 as type A)
assign1.go:107:5: error: incompatible types in assignment (cannot use type A as type A1)
assign1.go:112:4: error: incompatible types in assignment (cannot use type B1 as type B)
assign1.go:114:5: error: incompatible types in assignment (cannot use type B as type B1)
assign1.go:119:4: error: incompatible types in assignment (cannot use type C1 as type C)
assign1.go:121:5: error: incompatible types in assignment (cannot use type C as type C1)
assign1.go:126:4: error: incompatible types in assignment (cannot use type F1 as type F)
assign1.go:128:5: error: incompatible types in assignment (cannot use type F as type F1)
assign1.go:140:4: error: incompatible types in assignment (cannot use type M1 as type M)
assign1.go:142:5: error: incompatible types in assignment (cannot use type M as type M1)
assign1.go:147:4: error: incompatible types in assignment (cannot use type P1 as type P)
assign1.go:149:5: error: incompatible types in assignment (cannot use type P as type P1)
assign1.go:154:4: error: incompatible types in assignment (cannot use type S1 as type S)
assign1.go:156:5: error: incompatible types in assignment (cannot use type S as type S1)
assign1.go:158:6: error: incompatible types in assignment
assign1.go:159:6: error: incompatible types in assignment
assign1.go:160:5: error: incompatible types in assignment
assign1.go:161:5: error: incompatible types in assignment
assign1.go:162:6: error: incompatible types in assignment
assign1.go:163:6: error: incompatible types in assignment
assign1.go:165:6: error: incompatible types in assignment
assign1.go:166:6: error: incompatible types in assignment
assign1.go:167:5: error: incompatible types in assignment
assign1.go:168:5: error: incompatible types in assignment
assign1.go:169:6: error: incompatible types in assignment
assign1.go:170:6: error: incompatible types in assignment
assign1.go:172:6: error: incompatible types in assignment
assign1.go:173:6: error: incompatible types in assignment
assign1.go:174:5: error: incompatible types in assignment
assign1.go:175:5: error: incompatible types in assignment
assign1.go:176:6: error: incompatible types in assignment
assign1.go:177:6: error: incompatible types in assignment
assign1.go:179:6: error: incompatible types in assignment
assign1.go:180:6: error: incompatible types in assignment
assign1.go:181:5: error: incompatible types in assignment
assign1.go:182:5: error: incompatible types in assignment
assign1.go:183:6: error: incompatible types in assignment
assign1.go:184:6: error: incompatible types in assignment
assign1.go:186:6: error: incompatible types in assignment
assign1.go:187:6: error: incompatible types in assignment
assign1.go:188:5: error: incompatible types in assignment
assign1.go:189:5: error: incompatible types in assignment
assign1.go:190:6: error: incompatible types in assignment
assign1.go:191:6: error: incompatible types in assignment
assign1.go:193:6: error: incompatible types in assignment
assign1.go:194:6: error: incompatible types in assignment
assign1.go:195:5: error: incompatible types in assignment
assign1.go:196:5: error: incompatible types in assignment
assign1.go:197:6: error: incompatible types in assignment
assign1.go:198:6: error: incompatible types in assignment
assign1.go:200:6: error: incompatible types in assignment
assign1.go:201:6: error: incompatible types in assignment
assign1.go:202:5: error: incompatible types in assignment
assign1.go:203:5: error: incompatible types in assignment
assign1.go:204:6: error: incompatible types in assignment
assign1.go:205:6: error: incompatible types in assignment
assign1.go:207:6: error: incompatible types in assignment
assign1.go:208:6: error: incompatible types in assignment
assign1.go:209:5: error: incompatible types in assignment
assign1.go:210:5: error: incompatible types in assignment
assign1.go:211:6: error: incompatible types in assignment
assign1.go:212:6: error: incompatible types in assignment

R=rsc
CC=golang-dev
https://golang.org/cl/2163044

The gccgo library generates some garbage in the init routines
because it handles interfaces slightly differently.  Since the
test sets MemStats.Alloc to 0, the first time the garbage
collector runs it goes negative and the test fails.

R=rsc, r2
CC=golang-dev
https://golang.org/cl/2110044

nonblock.go wants to test nonblocking operations on
synchronous channels, so it is inherently racy.  This
introduces loops to make the race conditions much more likely
to succeed when using gccgo.

R=r
CC=golang-dev
https://golang.org/cl/2161043

Fixes #1037.

R=adg, rsc1
CC=golang-dev
https://golang.org/cl/2107048

R=adg
CC=golang-dev
https://golang.org/cl/2111045

gccgo does not handle 'new' specially here.

varerr.go:10:6: error: reference to undefined name ‘asdf’
varerr.go:12:6: error: invalid left hand side of assignment

R=rsc
CC=golang-dev
https://golang.org/cl/2139045

undef.go:12:6: error: reference to undefined name ‘x’
undef.go:13:6: error: reference to undefined name ‘x’
undef.go:14:6: error: reference to undefined name ‘x’
undef.go:22:25: error: reference to undefined name ‘y’
undef.go:42:11: error: reference to undefined name ‘v’

R=rsc
CC=golang-dev
https://golang.org/cl/2152045

vareq.go:10:25: error: expected ';' or '}' or newline

vareq1.go:9:24: error: expected ';' or newline after top level declaration

R=rsc
CC=golang-dev
https://golang.org/cl/2132045

R=adg
CC=golang-dev
https://golang.org/cl/2174043

Add windows NOTEST list to pkg make file.
5a make file. the change removes a space
character that was included when appending
an extension to TARG.

R=brainman, rsc
CC=golang-dev
https://golang.org/cl/2140046

Fixes #1087.

R=rsc
CC=golang-dev
https://golang.org/cl/2172041

R=r
CC=golang-dev
https://golang.org/cl/2140045

R=ken2
CC=golang-dev
https://golang.org/cl/2107047

Fixes #829.

R=ken2
CC=golang-dev
https://golang.org/cl/2124044

R=r, nigeltao
CC=golang-dev
https://golang.org/cl/2145045

The min is typically zero, which is why this hasn't bitten us yet.

R=r
CC=golang-dev
https://golang.org/cl/2119048

tests have not been run yet

R=stephenm
CC=golang-dev
https://golang.org/cl/2165046

With the recursive descent parser that gccgo uses, I think
that it doesn't make sense to try to match a statement where a
statement is not expected.  If the construct is not a
statement, you will just get bizarre error messages.

topexpr.go:9:1: error: expected declaration
topexpr.go:14:1: error: expected declaration
topexpr.go:19:1: error: expected declaration

R=rsc, r2
CC=golang-dev
https://golang.org/cl/2175041

Fixes #1092.

R=golang-dev, r2
CC=golang-dev
https://golang.org/cl/2121048

Awaiting the lower-bound change before checkin.

Fixes #1067.

R=rsc, iant, gri
CC=golang-dev
https://golang.org/cl/2105043

R=rsc, ken2
CC=golang-dev
https://golang.org/cl/2118050

and other begin and end of function code

R=ken2
CC=golang-dev
https://golang.org/cl/2158044

tmp.go:4:20: error: invalid NUL byte
tmp.go:6:24: error: invalid NUL byte
tmp.go:8:15: error: invalid NUL byte
tmp.go:10:21: error: invalid NUL byte
tmp.go:12:22: error: invalid NUL byte
tmp.go:14:21: error: invalid UTF-8 encoding
tmp.go:14:22: error: invalid UTF-8 encoding
tmp.go:16:25: error: invalid UTF-8 encoding
tmp.go:18:15: error: invalid UTF-8 encoding
tmp.go:18:16: error: invalid UTF-8 encoding
tmp.go:20:21: error: invalid UTF-8 encoding
tmp.go:20:22: error: invalid NUL byte
tmp.go:20:23: error: invalid NUL byte
tmp.go:23:6: error: invalid UTF-8 encoding
tmp.go:23:7: error: invalid UTF-8 encoding
tmp.go:25:22: error: invalid UTF-8 encoding

R=rsc
CC=golang-dev
https://golang.org/cl/2151046

image: introduce Intersect and Union rectangle methods.

R=r, rog, nigeltao
CC=golang-dev
https://golang.org/cl/2115043

exp/draw/x11: allow clean shutdown when the user closes the window.

R=r
CC=golang-dev
https://golang.org/cl/2134045

R=rsc, brainman, vcc
CC=golang-dev
https://golang.org/cl/2165044

R=rsc
CC=golang-dev
https://golang.org/cl/2145043

R=rsc, imkrasin, r
CC=golang-dev
https://golang.org/cl/1969042

Suggested by paulzhol@gmail.com

R=rsc
CC=golang-dev
https://golang.org/cl/2122049

Fixes #1089.

R=rsc
CC=golang-dev
https://golang.org/cl/2172043

Need to correct for deferproc's extra 2 words of stack or in some
cases (such as memory profiling) traceback can cause a crash.
Also bulletproof the closure test.

R=rsc
CC=golang-dev
https://golang.org/cl/2138047

named1.go:40:11: error: argument 1 has incompatible type (cannot use type bool as type Bool)
named1.go:41:11: error: argument 1 has incompatible type (cannot use type bool as type Bool)
named1.go:43:7: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:44:12: error: argument 4 has incompatible type (cannot use type Bool as type bool)
named1.go:46:4: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:48:11: error: argument 1 has incompatible type (cannot use type bool as type Bool)
named1.go:50:7: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:54:7: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:60:7: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:63:9: error: argument 1 has incompatible type (cannot use type bool as type Bool)
named1.go:64:4: error: incompatible types in assignment (cannot use type bool as type Bool)
named1.go:67:17: error: invalid type conversion (cannot use type Slice as type String)

R=rsc
CC=golang-dev
https://golang.org/cl/2146044

explicit.go:36:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:41:4: error: incompatible types in assignment (type has no methods)
explicit.go:42:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:45:5: error: incompatible types in assignment (need explicit conversion; missing method ‘N’)
explicit.go:48:9: error: invalid type conversion (need explicit conversion; missing method ‘N’)
explicit.go:51:4: error: incompatible types in assignment
explicit.go:51:7: error: invalid type conversion (need explicit conversion)
explicit.go:57:10: error: impossible type assertion: type does not implement interface (type has no methods)
explicit.go:62:10: error: impossible type assertion: type does not implement interface (incompatible type for method ‘M’ (different number of parameters))
explicit.go:67:5: error: incompatible type in initialization (type has no methods)
explicit.go:68:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different number of parameters))
explicit.go:70:11: error: invalid type conversion (type has no methods)
explicit.go:71:11: error: invalid type conversion (incompatible type for method ‘M’ (different number of parameters))

R=rsc
CC=golang-dev
https://golang.org/cl/2139044

R=r
CC=golang-dev
https://golang.org/cl/2128047

Use OS rather than compiler specific flag the same way that
__FreeBSD__, __APPLE__, __OpenBSD__, and __linux__ are used.

_WIN32 is defined by GCC (and others) on windows for Win32
and Win64 applications. _WIN32 is set by default for several
other windows based compilers: DMC, MSVC, Intel, Watcom, LCC.

Although the change is for consistency, it allows the Go tools
to be compiled with non-Mingw GCC distributions and non-GCC
compilers that support the GCC extensions.

R=rsc, brainman, vcc
CC=golang-dev
https://golang.org/cl/2168043

Fixes #382.

R=gri, cw, r, rsc
CC=golang-dev
https://golang.org/cl/1957045

R=rsc, r2
CC=golang-dev
https://golang.org/cl/2135045

Fixes #1046.

R=rsc, iant
CC=golang-dev
https://golang.org/cl/2102043