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go/test
Carlos Eduardo Seo 3023d7da49 cmd/compile/internal, cmd/internal/obj/ppc64: generate new count trailing zeros instructions on POWER9
This change adds new POWER9 instructions for counting trailing zeros (CNTTZW/CNTTZD)
to the assembler and generates them in SSA when GOPPC64=power9.

name                 old time/op  new time/op  delta
TrailingZeros-160    1.59ns ±20%  1.45ns ±10%  -8.81%  (p=0.000 n=14+13)
TrailingZeros8-160   1.55ns ±23%  1.62ns ±44%    ~     (p=0.593 n=13+15)
TrailingZeros16-160  1.78ns ±23%  1.62ns ±38%  -9.31%  (p=0.003 n=14+14)
TrailingZeros32-160  1.64ns ±10%  1.49ns ± 9%  -9.15%  (p=0.000 n=13+14)
TrailingZeros64-160  1.53ns ± 6%  1.45ns ± 5%  -5.38%  (p=0.000 n=15+13)

Change-Id: I365e6ff79f3ce4d8ebe089a6a86b1771853eb596
Reviewed-on: https://go-review.googlesource.com/c/go/+/167517
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2019-03-20 20:27:00 +00:00
..
alias3.dir
bench test/bench/go1: add go.mod file 2019-03-06 18:53:12 +00:00
chan test/chan: fix broken link to Squinting at Power Series 2019-02-06 20:54:16 +00:00
closure3.dir cmd/compile: encourage inlining of functions with single-call bodies 2018-11-08 17:29:23 +00:00
codegen cmd/compile/internal, cmd/internal/obj/ppc64: generate new count trailing zeros instructions on POWER9 2019-03-20 20:27:00 +00:00
ddd2.dir
dwarf
fixedbugs cmd/compile: rename init function from init.ializers back to init 2019-03-18 20:41:12 +00:00
import2.dir
import4.dir
interface
intrinsic.dir
ken
linkname.dir
method4.dir
retjmp.dir
stress
syntax
uintptrescapes.dir
64bit.go
235.go
alg.go
alias1.go
alias2.go
alias3.go
alias.go
align.go
append1.go
append.go
args.go
armimm.go
assign1.go
assign.go
atomicload.go
bigalg.go
bigmap.go
blank1.go
blank.go
bom.go
bombad.go
bounds.go
chancap.go runtime: handle 64bits addresses for AIX 2018-11-26 14:06:28 +00:00
chanlinear.go
char_lit1.go
char_lit.go
checkbce.go cmd/compile: fix ordering for short-circuiting ops 2019-03-06 20:04:07 +00:00
clearfat.go
closedchan.go
closure1.go
closure2.go
closure3.go all: fix a bunch of misspellings 2018-10-06 15:40:03 +00:00
closure4.go cmd/compile/internal/gc: add nil check for closure call on wasm 2018-08-14 09:19:38 +00:00
closure.go
cmp6.go
cmp.go
cmplx.go cmd/compile: rewrite f(g()) for multi-value g() during typecheck 2019-03-14 21:00:20 +00:00
cmplxdivide1.go
cmplxdivide.c
cmplxdivide.go
complit1.go
complit.go
compos.go
const1.go
const2.go
const3.go
const4.go
const5.go
const6.go
const.go
convert1.go
convert2.go
convert3.go
convert.go
convlit1.go
convlit.go
convT2X.go
copy1.go cmd/compile: rewrite f(g()) for multi-value g() during typecheck 2019-03-14 21:00:20 +00:00
copy.go
crlf.go
ddd1.go
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
deferfin.go
deferprint.go
deferprint.out
devirt.go
divide.go
divmod.go
empty.go
env.go
eof1.go
eof.go
escape2.go cmd/compile/internal/gc: unify self-assignment checks in esc.go 2018-09-20 09:46:11 +00:00
escape2n.go cmd/compile/internal/gc: unify self-assignment checks in esc.go 2018-09-20 09:46:11 +00:00
escape3.go
escape4.go
escape5.go cmd/compile: fix unnamed parameter handling in escape analysis 2018-12-04 23:01:00 +00:00
escape_array.go
escape_because.go cmd/compile: flow interface data to heap if CONVIFACE of a non-direct interface escapes 2019-02-21 15:14:45 +00:00
escape_calls.go
escape_closure.go
escape_field.go
escape_iface.go
escape_indir.go
escape_level.go
escape_map.go
escape_param.go cmd/compile: flow interface data to heap if CONVIFACE of a non-direct interface escapes 2019-02-21 15:14:45 +00:00
escape_slice.go
escape_struct_param1.go
escape_struct_param2.go
escape_struct_return.go
escape.go
fibo.go
finprofiled.go
float_lit2.go
float_lit3.go
float_lit.go
floatcmp.go
for.go
func1.go
func2.go
func3.go
func4.go
func5.go
func6.go
func7.go
func8.go
func.go
funcdup2.go
funcdup.go
gc1.go
gc2.go
gc.go
gcgort.go
gcstring.go
goprint.go
goprint.out
goto.go
heapsampling.go test: improve test coverage for heap sampling 2019-03-07 21:05:15 +00:00
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 cmd/compile: reorganize init functions 2019-03-18 20:10:55 +00:00
initcomma.go
initialize.go
initializerr.go
initloop.go
inline_big.go cmd/compile: set stricter inlining threshold in large functions 2018-07-24 16:11:08 +00:00
inline_caller.go runtime: make FuncForPC return the innermost inlined frame 2019-01-08 21:54:04 +00:00
inline_callers.go runtime: make FuncForPC return the innermost inlined frame 2019-01-08 21:54:04 +00:00
inline_literal.go
inline_math_bits_rotate.go cmd/compile: make math/bits.RotateLeft* an intrinsic on amd64 2018-08-30 22:48:28 +00:00
inline_sync.go sync: allow inlining the RWMutex.RUnlock fast path 2019-03-09 16:34:17 +00:00
inline_variadic.go
inline.go cmd/compile: encourage inlining of functions with single-call bodies 2018-11-08 17:29:23 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go
intrinsic.go
iota.go
label1.go
label.go
linkmain_run.go
linkmain.go
linkname.go
linkobj.go
linkx_run.go
linkx.go
literal2.go cmd/compile: accept 'i' suffix orthogonally on all numbers 2019-02-19 22:45:09 +00:00
literal.go
live1.go
live2.go cmd/compile,runtime: remove ambiguously live logic 2018-10-03 19:54:16 +00:00
live_syscall.go cmd/compile: encourage inlining of functions with single-call bodies 2018-11-08 17:29:23 +00:00
live.go cmd/compile: fix ordering for short-circuiting ops 2019-03-06 20:04:07 +00:00
locklinear.go
loopbce.go cmd/compile: reverse order of slice bounds checks 2019-03-09 00:52:45 +00:00
makechan.go
makemap.go
makenew.go
mallocfin.go
map1.go
map.go
mapclear.go
maplinear.go
mergemul.go
method1.go
method2.go
method3.go
method4.go
method5.go
method6.go
method7.go
method.go
named1.go
named.go
nil.go
nilcheck.go
nilptr2.go
nilptr3.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nilptr4.go
nilptr5_aix.go test: fix nilptr5 for AIX 2018-11-27 15:36:08 +00:00
nilptr5_wasm.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nilptr5.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nilptr_aix.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nilptr.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nosplit.go ../test: set GOPATH in nosplit.go 2019-03-12 20:46:29 +00:00
notinheap2.go
notinheap3.go cmd/compile: omit write barriers for slice clears of go:notinheap pointers 2018-12-05 21:54:54 +00:00
notinheap.go cmd/compile: disallow converting string to notinheap slice 2018-11-02 19:53:59 +00:00
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: reverse order of slice bounds checks 2019-03-09 00:52:45 +00:00
range.go
README.md
recover1.go
recover2.go
recover3.go
recover4.go
recover5.go
recover.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
rename1.go
rename.go
reorder2.go
reorder.go
retjmp.go
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
run.go math, math/bits: add intrinsics for wasm 2019-03-14 19:46:19 +00:00
rune.go
runtime.go
shift1.go
shift2.go
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit_run.go
sinit.go cmd/compile: fix static initializer 2018-12-03 16:48:21 +00:00
sizeof.go
slice3.go
slice3err.go
slicecap.go
sliceopt.go
solitaire.go
stack.go
stackobj2.go test: stress test for stack objects 2018-10-03 19:54:29 +00:00
stackobj3.go cmd/compile,runtime: remove ambiguously live logic 2018-10-03 19:54:16 +00:00
stackobj.go cmd/compile,runtime: remove ambiguously live logic 2018-10-03 19:54:16 +00:00
strcopy.go
strength.go
string_lit.go
stringrange.go
struct0.go
switch2.go
switch3.go
switch4.go
switch5.go Revert "fmt: fix incorrect format of whole-number floats when using %#v" 2018-10-16 21:54:35 +00:00
switch6.go
switch7.go
switch.go
tinyfin.go
torture.go
turing.go
typecheck.go
typecheckloop.go
typeswitch1.go
typeswitch2.go test: fix spelling of caught be the compiler to caught by the compiler 2018-10-04 00:49:49 +00:00
typeswitch3.go test: fix spelling of caught be the compiler to caught by the compiler 2018-10-04 00:49:49 +00:00
typeswitch.go
uintptrescapes2.go cmd/compile: reuse temporaries in order pass 2018-10-14 05:21:00 +00:00
uintptrescapes.go
undef.go
utf.go
varerr.go
varinit.go
writebarrier.go cmd/compile: better write barrier removal when initializing new objects 2019-03-18 21:16:19 +00:00
zerodivide.go

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

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.