go/test at fe26dfadc3630617d133b8c94bcb2ccb2e85dc1b - go

qbit/go

mirror of https://github.com/golang/go synced 2024-11-26 10:38:07 -07:00

History

Cherry Zhang 6b8e3e2d06 cmd/compile: reduce redundant register moves for regabi calls Currently, if we have AX=a and BX=b, and we want to make a call F(1, a, b), to move arguments into the desired registers it emits MOVQ AX, CX MOVL $1, AX // AX=1 MOVQ BX, DX MOVQ CX, BX // BX=a MOVQ DX, CX // CX=b This has a few redundant moves. This is because we process inputs in order. First, allocate 1 to AX, which kicks out a (in AX) to CX (a free register at the moment). Then, allocate a to BX, which kicks out b (in BX) to DX. Finally, put b to CX. Notice that if we start with allocating CX=b, then BX=a, AX=1, we will not have redundant moves. This CL reduces redundant moves by allocating them in different order: First, for inpouts that are already in place, keep them there. Then allocate free registers. Then everything else. before after cmd/compile binary size 23703888 23609680 text size 8565899 8533291 (with regabiargs enabled.) Change-Id: I69e1bdf745f2c90bb791f6d7c45b37384af1e874 Reviewed-on: https://go-review.googlesource.com/c/go/+/311371 Trust: Cherry Zhang <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Than McIntosh <thanm@google.com>		2021-04-19 16:21:39 +00:00
..
abi	test: add test for CL 310589	2021-04-19 14:51:24 +00:00
alias3.dir
bench	all: update references to symbols moved from io/ioutil to io	2021-04-05 17:51:15 +00:00
chan
closure3.dir	cmd/compile: set types properly for imported funcs with closures	2021-04-14 01:28:16 +00:00
closure5.dir
codegen	cmd/compile: reduce redundant register moves for regabi calls	2021-04-19 16:21:39 +00:00
ddd2.dir
dwarf
fixedbugs	cmd/compile: skip "_" function in reflectdata.MarkUsedIfaceMethod	2021-04-19 04:37:32 +00:00
import2.dir
import4.dir
interface
intrinsic.dir
ken
linkname.dir
method4.dir
oldescape_linkname.dir
retjmp.dir
runtime
stress	all: update references to symbols moved from io/ioutil to io	2021-04-05 17:51:15 +00:00
syntax	test/syntax: remove interface.go	2021-04-06 18:55:39 +00:00
typeparam	cmd/compile: propagate pragmas from generic function to stenciled implementation	2021-04-15 00:29:05 +00:00
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
cannotassign.go
chancap.go
chanlinear.go
char_lit1.go
char_lit.go
checkbce.go
clearfat.go
closedchan.go
closure1.go
closure2.go
closure3.go
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
const.go
convert1.go
convert2.go
convert3.go
convert.go
convlit1.go
convlit.go	cmd/compile/internal/types2: refactor untyped conversions	2021-03-23 05:11:09 +00:00
convT2X.go
copy1.go
copy.go
crlf.go
ddd1.go
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
defererrcheck.go
deferfin.go
defernil.go
deferprint.go
deferprint.out
devirt.go
directive.go
divide.go
divmod.go
embedfunc.go
embedvers.go
empty.go
env.go
eof1.go
eof.go
escape2.go
escape2n.go
escape3.go
escape4.go
escape5.go
escape_array.go
escape_calls.go
escape_closure.go
escape_field.go
escape_goto.go
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
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
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
initempty.go
initexp.go
initialize.go
initializerr.go
initloop.go
inline_big.go
inline_caller.go
inline_callers.go
inline_literal.go
inline_math_bits_rotate.go
inline_sync.go
inline_variadic.go
inline.go	cmd/compile: set types properly for imported funcs with closures	2021-04-14 01:28:16 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go
intrinsic.go
iota.go
label1.go
label.go
linkmain_run.go
linkmain.go
linkname2.go
linkname.go
linkobj.go
linkx_run.go
linkx.go
literal2.go
literal.go
live1.go
live2.go
live_regabi.go	test: add liveness test for regabi	2021-04-19 14:42:58 +00:00
live_syscall.go
live.go	test: add liveness test for regabi	2021-04-19 14:42:58 +00:00
locklinear.go
loopbce.go
mainsig.go
makechan.go
makemap.go
makenew.go
makeslice.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
nilptr4.go
nilptr5_aix.go
nilptr5_wasm.go
nilptr5.go
nilptr_aix.go
nilptr.go
nosplit.go	test: make nosplit test invariant to ABI wrappers	2021-03-18 16:51:25 +00:00
notinheap2.go
notinheap3.go
notinheap.go
nowritebarrier.go
nul1.go
opt_branchlikely.go
parentype.go
peano.go
phiopt.go	cmd/compile/internal/ssa: strengthen phiopt pass	2021-03-29 05:50:11 +00:00
print.go
print.out
printbig.go
printbig.out
prove.go
range.go
README.md
recover1.go
recover2.go
recover3.go
recover4.go
recover5.go
recover.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
reflectmethod5.go
reflectmethod6.go
reflectmethod7.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	cmd/go, go/build: add ToolTags to build.Default	2021-04-16 19:21:48 +00:00
rune.go
runtime.go
shift1.go
shift2.go
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit_run.go
sinit.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
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
undef.go
used.go
utf.go
varerr.go
varinit.go
winbatch.go
writebarrier.go
zerodivide.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 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.