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Michael Pratt 63ba2b9d84 cmd/compile,internal/runtime/maps: stack allocated maps and small alloc 
The compiler will stack allocate the Map struct and initial group if
possible.

Stack maps are initialized inline without calling into the runtime.
Small heap allocated maps use makemap_small.

These are the same heuristics as existing maps.

For #54766.

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: I6c371d1309716fd1c38a3212d417b3c76db5c9b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/622042
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
2024-10-30 15:43:54 +00:00
..
abi test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
alias3.dir
arenas
asmhdr.dir
chan
closure3.dir cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
closure5.dir
codegen cmd/compile: add rules to optimize go codes to constant 0 on loong64 2024-10-29 01:17:54 +00:00
ddd2.dir
dwarf
fixedbugs go/types, types2: qualify named types in error messages with type kind 2024-10-23 04:43:01 +00:00
import2.dir
import4.dir
interface
internal/runtime/sys runtime: move getcallersp to internal/runtime/sys 2024-09-17 17:01:20 +00:00
intrinsic.dir runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
ken
linkname.dir
linknameasm.dir cmd/compile: generate args_stackmap for ABI0 assembly func regardless of linkname 2024-06-07 15:22:22 +00:00
method4.dir
retjmp.dir
stress test/stress: fix typo in comment 2024-03-25 19:21:35 +00:00
syntax
typeparam cmd/compile: export/import materialized aliases 2024-04-05 16:29:58 +00:00
uintptrescapes.dir
wasmmemsize.dir test: add a test for wasm memory usage 2024-10-28 13:27:58 +00:00
64bit.go
235.go
alg.go
alias1.go
alias2.go go/types, types2: qualify named types in error messages with type kind 2024-10-23 04:43:01 +00:00
alias3.go
alias.go
align.go
append1.go
append.go
args.go
armimm.go
asmhdr.go
assign1.go
assign.go
atomicload.go
bigalg.go
bigmap.go
blank1.go
blank.go
bom.go
bombad.go
bounds.go
cannotassign.go
chancap.go
chanlinear.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
char_lit1.go
char_lit.go
checkbce.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
clear.go
clearfat.go
closedchan.go
closure1.go
closure2.go
closure3.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
closure4.go
closure5.go
closure6.go
closure7.go
closure.go
cmp6.go
cmp.go
cmplx.go
cmplxdivide1.go
cmplxdivide.c
cmplxdivide.go
complit1.go
complit.go
compos.go
const1.go
const2.go
const3.go
const4.go
const5.go
const6.go
const7.go
const8.go
const.go
convert1.go
convert2.go
convert3.go
convert4.go
convert.go
convinline.go
convlit1.go
convlit.go
convT2X.go
copy1.go
copy.go
crlf.go
ddd1.go
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
defererrcheck.go test: add open-coded defer tests for too many exits path 2024-07-29 14:30:07 +00:00
deferfin.go
defernil.go
deferprint.go
deferprint.out
devirt.go
directive2.go
directive.go
divide.go
divmod.go
embedfunc.go
embedvers.go
empty.go
env.go
eof1.go
eof.go
escape2.go all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
escape2n.go all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
escape3.go
escape4.go cmd/compile: retire "IsHiddenClosure" and "IsDeadcodeClosure" 2024-07-22 21:27:37 +00:00
escape5.go cmd/compile/internal/noder: stop preserving original const strings 2023-09-08 18:50:24 +00:00
escape_array.go
escape_calls.go cmd/compile: fix escape analysis of string min/max 2023-12-05 22:06:07 +00:00
escape_closure.go cmd/compile: retire "IsHiddenClosure" and "IsDeadcodeClosure" 2024-07-22 21:27:37 +00:00
escape_field.go
escape_goto.go
escape_hash_maphash.go
escape_iface.go
escape_indir.go
escape_level.go
escape_map.go
escape_mutations.go cmd/compile: restore zero-copy string->[]byte optimization 2023-08-18 11:58:37 +00:00
escape_param.go
escape_reflect.go reflect: remove calling mapiterkey, mapiterelem 2024-09-18 20:57:20 +00:00
escape_runtime_atomic.go runtime: migrate internal/atomic to internal/runtime 2024-03-25 19:53:03 +00:00
escape_selfassign.go
escape_slice.go cmd/compile/internal/noder: stop preserving original const strings 2023-09-08 18:50:24 +00:00
escape_struct_param1.go
escape_struct_param2.go
escape_struct_return.go
escape_sync_atomic.go
escape_unsafe.go
escape.go
fibo.go
finprofiled.go test: ignore MemProfileRecords with no live objects in finprofiled.go 2023-11-16 05:48:00 +00:00
float_lit2.go
float_lit3.go
float_lit.go
floatcmp.go
for.go
func1.go
func2.go
func3.go go/parser, syntax: better error message for parameter missing type 2024-09-30 22:04:40 +00:00
func4.go
func5.go
func6.go
func7.go
func8.go
func.go
funcdup2.go
funcdup.go
fuse.go cmd/compile: handle boolean and pointer relations 2024-08-07 16:07:55 +00:00
gc1.go
gc2.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
gc.go
gcgort.go
gcstring.go
goprint.go
goprint.out
goto.go
heapsampling.go
helloworld.go
helloworld.out
if.go
import1.go
import2.go
import4.go
import5.go
import6.go
import.go
index0.go
index1.go
index2.go
index.go
indirect1.go
indirect.go
init1.go
init.go
initcomma.go
initexp.go
initialize.go
initializerr.go
initloop.go go/types: improve recursive type error message 2024-10-22 22:20:29 +00:00
inline_big.go cmd/compile: restore zero-copy string->[]byte optimization 2023-08-18 11:58:37 +00:00
inline_caller.go
inline_callers.go
inline_endian.go
inline_literal.go
inline_math_bits_rotate.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
inline_sync.go sync: use atomic.Uint32 in Once 2023-10-06 21:01:50 +00:00
inline_variadic.go
inline.go cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
intrinsic.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
iota.go
label1.go
label.go
linkmain_run.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkmain.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkname3.go cmd/compile: disallow linkname referring to instantiations 2024-05-15 19:27:25 +00:00
linkname.go
linknameasm.go cmd/compile: generate args_stackmap for ABI0 assembly func regardless of linkname 2024-06-07 15:22:22 +00:00
linkobj.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkx_run.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkx.go
literal2.go
literal.go
live1.go
live2.go cmd/compile,internal/runtime/maps: add extendible hashing 2024-10-21 14:16:20 +00:00
live_regabi.go cmd/compile,internal/runtime/maps: stack allocated maps and small alloc 2024-10-30 15:43:54 +00:00
live_uintptrkeepalive.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
live.go cmd/compile,internal/runtime/maps: stack allocated maps and small alloc 2024-10-30 15:43:54 +00:00
loopbce.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
mainsig.go
makechan.go all: fix some comments 2024-04-04 14:29:45 +00:00
makemap.go
makenew.go
makeslice.go
mallocfin.go
map1.go
map.go
mapclear.go
maplinear.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
maymorestack.go
mergemul.go
method1.go
method2.go
method3.go
method4.go
method5.go
method6.go
method7.go
method.go
named1.go
named.go
newinline.go cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
nil.go
nilcheck.go
nilptr2.go
nilptr3.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr4.go
nilptr5_aix.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr5_wasm.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr5.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr_aix.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
noinit.go
nosplit.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nowritebarrier.go cmd/compile: redo IsRuntimePkg/IsReflectPkg predicate 2023-08-22 19:18:21 +00:00
nul1.go
opt_branchlikely.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
parentype.go
peano.go
phiopt.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
print.go
print.out
printbig.go
printbig.out
prove_constant_folding.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
prove_invert_loop_with_unused_iterators.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
prove.go cmd/compile: teach prove about min/max phi operations 2024-10-29 16:46:48 +00:00
range2.go all: rename GOEXPERIMENT=range to rangefunc 2023-11-08 15:32:14 +00:00
range3.go cmd/compile: fix typecheck range over rune literal 2023-12-01 17:20:08 +00:00
range4.go cmd/compile: handle defined iter func type correctly 2024-01-08 16:00:53 +00:00
range.go
rangegen.go test: skip rangegen.go on 32-bit platforms 2023-12-18 23:35:19 +00:00
README.md
recover1.go
recover2.go
recover3.go
recover4.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
recover5.go
recover.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
reflectmethod5.go
reflectmethod6.go
reflectmethod7.go
reflectmethod8.go
rename1.go
rename.go
reorder2.go
reorder.go
retjmp.go
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
rune.go
runtime.go
shift1.go
shift2.go
shift3.go
sieve.go
sigchld.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
sigchld.out
simassign.go
sizeof.go
slice3.go
slice3err.go
slicecap.go
sliceopt.go
solitaire.go
stack.go
stackobj2.go
stackobj3.go
stackobj.go
strcopy.go
strength.go
string_lit.go
stringrange.go
struct0.go
switch2.go
switch3.go
switch4.go
switch5.go
switch6.go
switch7.go
switch.go
tailcall.go cmd/compile: emit tail call wrappers when possible 2024-09-09 20:20:10 +00:00
tighten.go
tinyfin.go
torture.go
turing.go
typecheck.go
typecheckloop.go
typeswitch1.go
typeswitch2.go
typeswitch2b.go
typeswitch3.go
typeswitch.go
uintptrescapes2.go
uintptrescapes3.go
uintptrescapes.go
uintptrkeepalive.go
undef.go
unsafe_slice_data.go
unsafe_string_data.go
unsafe_string.go
unsafebuiltins.go
used.go
utf.go
varerr.go
varinit.go
wasmexport2.go cmd/compile: correct wasmexport result type checking 2024-09-11 20:01:21 +00:00
wasmexport.go cmd/compile: add basic wasmexport support 2024-08-09 20:07:54 +00:00
wasmmemsize.go test: add a test for wasm memory usage 2024-10-28 13:27:58 +00:00
winbatch.go
writebarrier.go
zerodivide.go
zerosize.go

README.md

The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.

To run just these tests, execute:

../bin/go test cmd/internal/testdir

To run just tests from specified files in this directory, execute:

../bin/go test cmd/internal/testdir -run='Test/(file1.go|file2.go|...)'

Standard library tests should be written as regular Go tests in the appropriate package.

The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:

  • it is most naturally expressed using the test runner; or
  • it is also applicable to gccgo and other Go tool chains.