go/test at f12461cb0f3878b6d332f4be3a02fa44cc744df6 - go

History

Paul E. Murphy 0c43878baa cmd/compile: lower Add64/Sub64 into ssa on PPC64 math/bits.Add64 and math/bits.Sub64 now lower and optimize directly in SSA form. The optimization of carry chains focuses around eliding XER<->GPR transfers of the CA bit when used exclusively as an input to a single carry operations, or when the CA value is known. This also adds support for handling XER spills in the assembler which could happen if carry chains contain inter-dependencies on each other (which seems very unlikely with practical usage), or a clobber happens (SRAW/SRAD/SUBFC operations clobber CA). With PPC64 Add64/Sub64 lowering into SSA and this patch, the net performance difference in crypto/elliptic benchmarks on P9/ppc64le are: name old time/op new time/op delta ScalarBaseMult/P256 46.3µs ± 0% 46.9µs ± 0% +1.34% ScalarBaseMult/P224 356µs ± 0% 209µs ± 0% -41.14% ScalarBaseMult/P384 1.20ms ± 0% 0.57ms ± 0% -52.14% ScalarBaseMult/P521 3.38ms ± 0% 1.44ms ± 0% -57.27% ScalarMult/P256 199µs ± 0% 199µs ± 0% -0.17% ScalarMult/P224 357µs ± 0% 212µs ± 0% -40.56% ScalarMult/P384 1.20ms ± 0% 0.58ms ± 0% -51.86% ScalarMult/P521 3.37ms ± 0% 1.44ms ± 0% -57.32% MarshalUnmarshal/P256/Uncompressed 2.59µs ± 0% 2.52µs ± 0% -2.63% MarshalUnmarshal/P256/Compressed 2.58µs ± 0% 2.52µs ± 0% -2.06% MarshalUnmarshal/P224/Uncompressed 1.54µs ± 0% 1.40µs ± 0% -9.42% MarshalUnmarshal/P224/Compressed 1.54µs ± 0% 1.39µs ± 0% -9.87% MarshalUnmarshal/P384/Uncompressed 2.40µs ± 0% 1.80µs ± 0% -24.93% MarshalUnmarshal/P384/Compressed 2.35µs ± 0% 1.81µs ± 0% -23.03% MarshalUnmarshal/P521/Uncompressed 3.79µs ± 0% 2.58µs ± 0% -31.81% MarshalUnmarshal/P521/Compressed 3.80µs ± 0% 2.60µs ± 0% -31.67% Note, P256 uses an asm implementation, thus, little variation is expected. Change-Id: I88a24f6bf0f4f285c649e40243b1ab69cc452b71 Reviewed-on: https://go-review.googlesource.com/c/go/+/346870 Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>		2022-05-10 20:03:53 +00:00
..
abi	cmd/compile: restore tail call for method wrappers	2021-09-17 22:59:44 +00:00
alias3.dir	…
asmhdr.dir	cmd/compile: use exact constant in go_asm.h	2022-01-10 21:27:19 +00:00
bench	…
chan	…
closure3.dir	cmd/compile/internal/inline: revise closure inl position fix	2021-11-24 15:55:56 +00:00
closure5.dir	test: use dot-relative imports where appropriate	2022-03-24 02:14:15 +00:00
codegen	cmd/compile: lower Add64/Sub64 into ssa on PPC64	2022-05-10 20:03:53 +00:00
ddd2.dir	…
dwarf	…
fixedbugs	cmd/compile: be sure to export types mentioned in f.i.g. method signature	2022-05-10 19:15:31 +00:00
import2.dir	…
import4.dir	…
interface	cmd/compile: require -p flag	2022-03-09 21:31:58 +00:00
intrinsic.dir	…
ken	test/ken/slicearray.go: correct type width in comment	2021-12-05 12:50:44 +00:00
linkname.dir	test: compile source files as if from "test" module	2022-03-24 17:50:47 +00:00
method4.dir	…
retjmp.dir	cmd/internal/obj: fix tail call in non-zero frame leaf function on MIPS and S390X	2021-12-13 22:42:08 +00:00
runtime	…
stress	…
syntax	cmd/compile/internal/syntax: better errors for syntax errors in lists	2022-03-31 00:26:58 +00:00
typeparam	test: add test case for #51840	2022-05-10 19:40:04 +00:00
uintptrescapes.dir	…
64bit.go	…
235.go	…
README.md	…
alg.go	…
alias.go	…
alias1.go	…
alias2.go	cmd/compile: match Go 1.17 compiler error messages more closely	2021-11-12 23:07:01 +00:00
alias3.go	…
align.go	…
append.go	…
append1.go	cmd/compile: match Go 1.17 compiler error messages more closely	2021-11-12 23:07:01 +00:00
args.go	…
armimm.go	…
asmhdr.go	cmd/compile: emit sensible go_asm.h consts for big ints	2021-10-30 18:30:05 +00:00
assign.go	…
assign1.go	…
atomicload.go	…
bigalg.go	…
bigmap.go	…
blank.go	…
blank1.go	…
bom.go	…
bombad.go	…
bounds.go	…
cannotassign.go	…
chancap.go	…
chanlinear.go	…
char_lit.go	…
char_lit1.go	…
checkbce.go	…
clearfat.go	…
closedchan.go	…
closure.go	…
closure1.go	…
closure2.go	…
closure3.go	…
closure4.go	…
closure5.go	…
closure6.go	…
closure7.go	…
cmp.go	…
cmp6.go	…
cmplx.go	…
cmplxdivide.c	…
cmplxdivide.go	…
cmplxdivide1.go	…
complit.go	…
complit1.go	…
compos.go	…
const.go	…
const1.go	…
const2.go	…
const3.go	…
const4.go	…
const5.go	…
const6.go	…
const7.go	cmd/compile: require -p flag	2022-03-09 21:31:58 +00:00
convT2X.go	…
convert.go	…
convert1.go	…
convert2.go	…
convert3.go	…
convert4.go	…
convlit.go	…
convlit1.go	…
copy.go	…
copy1.go	…
crlf.go	…
ddd.go	…
ddd1.go	cmd/compile: match Go 1.17 compiler error messages more closely	2021-11-12 23:07:01 +00:00
ddd2.go	…
decl.go	…
declbad.go	…
defer.go	…
defererrcheck.go	…
deferfin.go	…
defernil.go	…
deferprint.go	…
deferprint.out	…
devirt.go	[dev.typeparams] cmd/compile: simplify interface conversions	2021-08-09 16:10:20 +00:00
directive.go	test: re-enable a bunch of tests with types2	2021-12-03 16:24:32 +00:00
directive2.go	test: re-enable a bunch of tests with types2	2021-12-03 16:24:32 +00:00
divide.go	…
divmod.go	…
embedfunc.go	…
embedvers.go	…
empty.go	…
env.go	…
eof.go	…
eof1.go	…
escape.go	…
escape2.go	…
escape2n.go	…
escape3.go	…
escape4.go	…
escape5.go	[dev.typeparams] test: rename blank functions	2021-07-28 21:41:07 +00:00
escape_array.go	…
escape_calls.go	…
escape_closure.go	…
escape_field.go	…
escape_goto.go	[dev.typeparams] test: rename blank functions	2021-07-28 21:41:07 +00:00
escape_hash_maphash.go	…
escape_iface.go	…
escape_indir.go	…
escape_level.go	…
escape_map.go	…
escape_param.go	…
escape_runtime_atomic.go	…
escape_selfassign.go	…
escape_slice.go	…
escape_struct_param1.go	…
escape_struct_param2.go	…
escape_struct_return.go	…
escape_sync_atomic.go	…
escape_unsafe.go	…
fibo.go	…
finprofiled.go	…
float_lit.go	…
float_lit2.go	…
float_lit3.go	test: re-enable a bunch of tests with types2	2021-12-03 16:24:32 +00:00
floatcmp.go	…
for.go	…
func.go	…
func1.go	…
func2.go	…
func3.go	…
func4.go	…
func5.go	…
func6.go	…
func7.go	…
func8.go	…
funcdup.go	…
funcdup2.go	…
fuse.go	…
gc.go	…
gc1.go	…
gc2.go	…
gcgort.go	…
gcstring.go	…
goprint.go	…
goprint.out	…
goto.go	…
heapsampling.go	…
helloworld.go	…
helloworld.out	…
if.go	…
import.go	…
import1.go	test: re-enable most go/tests that were disabled because of types2 differences	2022-01-11 02:26:58 +00:00
import2.go	…
import4.go	…
import5.go	…
import6.go	test: re-enable most go/tests that were disabled because of types2 differences	2022-01-11 02:26:58 +00:00
index.go	…
index0.go	…
index1.go	…
index2.go	…
indirect.go	…
indirect1.go	…
init.go	…
init1.go	…
initcomma.go	…
initempty.go	…
initexp.go	…
initialize.go	…
initializerr.go	test: re-enable most go/tests that were disabled because of types2 differences	2022-01-11 02:26:58 +00:00
initloop.go	…
inline.go	cmd/compile: constant-fold switches early in compilation	2022-04-14 19:37:30 +00:00
inline_big.go	…
inline_caller.go	…
inline_callers.go	…
inline_endian.go	test: skip endian inlining test on noopt builder	2021-10-07 00:39:17 +00:00
inline_literal.go	…
inline_math_bits_rotate.go	…
inline_sync.go	…
inline_variadic.go	…
int_lit.go	…
intcvt.go	…
intrinsic.go	…
intrinsic_atomic.go	…
iota.go	…
label.go	…
label1.go	…
linkmain.go	…
linkmain_run.go	cmd/compile: require -p flag	2022-03-09 21:31:58 +00:00
linkname.go	…
linkname3.go	test: re-enable a bunch of tests with types2	2021-12-03 16:24:32 +00:00
linkobj.go	cmd/compile: require -p flag	2022-03-09 21:31:58 +00:00
linkx.go	…
linkx_run.go	…
literal.go	…
literal2.go	…
live.go	[dev.typeparams] cmd/compile: simplify interface conversions	2021-08-09 16:10:20 +00:00
live1.go	…
live2.go	…
live_regabi.go	test: enable regabi test on arm64	2021-08-20 19:58:13 +00:00
live_uintptrkeepalive.go	cmd/compile: add //go:uintptrkeepalive	2022-04-21 18:06:38 +00:00
locklinear.go	…
loopbce.go	…
mainsig.go	…
makechan.go	…
makemap.go	…
makenew.go	…
makeslice.go	…
mallocfin.go	…
map.go	…
map1.go	…
mapclear.go	…
maplinear.go	…
maymorestack.go	cmd/{asm,compile,internal/obj}: add "maymorestack" support	2021-11-05 00:52:06 +00:00
mergemul.go	…
method.go	…
method1.go	…
method2.go	go/types, types2: better error message when using *interface instead of interface	2022-01-10 22:48:40 +00:00
method3.go	…
method4.go	…
method5.go	…
method6.go	…
method7.go	…
named.go	…
named1.go	…
nil.go	…
nilcheck.go	…
nilptr.go	…
nilptr2.go	…
nilptr3.go	…
nilptr4.go	…
nilptr5.go	…
nilptr5_aix.go	…
nilptr5_wasm.go	…
nilptr_aix.go	…
nosplit.go	cmd/link: faster algorithm for nosplit stack checking, better errors	2022-04-19 15:59:26 +00:00
notinheap.go	…
notinheap2.go	…
notinheap3.go	…
nowritebarrier.go	…
nul1.go	…
opt_branchlikely.go	…
parentype.go	…
peano.go	…
phiopt.go	…
print.go	…
print.out	…
printbig.go	…
printbig.out	…
prove.go	cmd/compile: teach prove about and operation	2022-05-08 20:10:06 +00:00
prove_constant_folding.go	cmd/compile: fold constants found by prove	2022-05-04 20:30:17 +00:00
range.go	…
recover.go	…
recover1.go	…
recover2.go	…
recover3.go	…
recover4.go	test/recover4.go: use mprotect to create a hole instead of munmap	2021-11-12 16:58:34 +00:00
recover5.go	…
reflectmethod1.go	…
reflectmethod2.go	…
reflectmethod3.go	…
reflectmethod4.go	…
reflectmethod5.go	…
reflectmethod6.go	…
reflectmethod7.go	all: use reflect.{Pointer,PointerTo}	2021-10-26 14:24:17 +00:00
reflectmethod8.go	[dev.typeparams] cmd/compile: fix missing condition in usemethod	2021-07-22 17:48:41 +00:00
rename.go	…
rename1.go	…
reorder.go	…
reorder2.go	…
retjmp.go	…
return.go	…
rotate.go	…
rotate0.go	…
rotate1.go	…
rotate2.go	…
rotate3.go	…
run.go	go/types,types2: delay the check for conflicting struct field names	2022-05-03 14:14:31 +00:00
rune.go	…
runtime.go	…
shift1.go	test: re-enable a bunch of tests with types2	2021-12-03 16:24:32 +00:00
shift2.go	…
shift3.go	cmd/compile: adjust types2 shift check to match go/types (cleanup)	2022-04-07 17:19:55 +00:00
sieve.go	…
sigchld.go	…
sigchld.out	…
simassign.go	…
sinit.go	…
sinit_run.go	cmd/compile: require -p flag	2022-03-09 21:31:58 +00:00
sizeof.go	…
slice3.go	…
slice3err.go	…
slicecap.go	…
sliceopt.go	…
solitaire.go	…
stack.go	…
stackobj.go	…
stackobj2.go	…
stackobj3.go	…
strcopy.go	…
strength.go	…
string_lit.go	…
stringrange.go	…
struct0.go	…
switch.go	…
switch2.go	…
switch3.go	…
switch4.go	…
switch5.go	…
switch6.go	cmd/compile, types2: better error message for invalid type assertion	2021-10-19 17:01:35 +00:00
switch7.go	…
tinyfin.go	…
torture.go	…
turing.go	…
typecheck.go	test: re-enable most go/tests that were disabled because of types2 differences	2022-01-11 02:26:58 +00:00
typecheckloop.go	…
typeswitch.go	…
typeswitch1.go	…
typeswitch2.go	…
typeswitch2b.go	…
typeswitch3.go	cmd/compile/internal/types2: better error for type assertion/switch on type parameter value	2021-11-12 22:20:51 +00:00
uintptrescapes.go	…
uintptrescapes2.go	…
uintptrescapes3.go	…
uintptrkeepalive.go	cmd/compile: add //go:uintptrkeepalive	2022-04-21 18:06:38 +00:00
undef.go	…
unsafebuiltins.go	unsafe: allow unsafe.Slice up to end of address space	2021-10-13 18:15:16 +00:00
used.go	…
utf.go	…
varerr.go	…
varinit.go	…
winbatch.go	…
writebarrier.go	cmd/compile: don't emit write barriers for offsets of global addresses	2021-08-23 19:46:36 +00:00
zerodivide.go	all: use bytes.Cut, strings.Cut	2021-10-06 15:53:04 +00:00

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 run run.go

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

../bin/go run run.go -- 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.