go/test
Cherry Zhang 37a32a1833 cmd/compile: make sure address of offset(SP) is rematerializeable
An address of offset(SP) may point to the callee args area, and
may be used to move things into/out of the args/results. If an
address like that is spilled and picked up by the GC, it may hold
an arg/result live in the callee, which may not actually be live
(e.g. a result not initialized at function entry). Make sure
they are rematerializeable, so they are always short-lived and
never picked up by the GC.

This CL changes 386, PPC64, and Wasm. On AMD64 we already have
the rule (line 2159). On other architectures, we already have
similar rules like
(OffPtr [off] ptr:(SP)) => (MOVDaddr [int32(off)] ptr)
to avoid this problem. (Probably me in the past had run into
this...)

Fixes #42944.

Change-Id: Id2ec73ac08f8df1829a9a7ceb8f749d67fe86d1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/275174
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2020-12-03 21:34:39 +00:00
..
alias3.dir
bench
chan test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
closure3.dir cmd/compile: allow inlining of "for" loops 2020-10-15 18:26:33 +00:00
codegen cmd/compile: fix rules regression with shifts on PPC64 2020-11-17 13:20:20 +00:00
ddd2.dir
dwarf
fixedbugs cmd/compile: make sure address of offset(SP) is rematerializeable 2020-12-03 21:34:39 +00:00
import2.dir
import4.dir
interface test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
intrinsic.dir
ken
linkname.dir
method4.dir
oldescape_linkname.dir
retjmp.dir
runtime
stress
syntax test: match gofrontend error messages 2020-12-02 02:56:41 +00:00
uintptrescapes.dir
64bit.go
235.go
README.md test: document specifying individual test files as operands 2020-08-28 21:23:32 +00:00
alg.go
alias.go
alias1.go
alias2.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
alias3.go
align.go
append.go
append1.go
args.go
armimm.go
assign.go test: match gccgo error messages 2020-12-03 16:28:44 +00:00
assign1.go
atomicload.go
bigalg.go
bigmap.go
blank.go
blank1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
bom.go
bombad.go
bounds.go cmd/compile: defer lowering OANDNOT until SSA 2020-10-27 03:11:45 +00:00
cannotassign.go cmd/compile: be more specific in cannot assign errors 2020-09-16 20:04:58 +00:00
chancap.go
chanlinear.go test, test/fixedbugs, crypto/x509, go/internal/gccgoimporter: fix typos 2020-03-29 17:12:56 +00:00
char_lit.go
char_lit1.go
checkbce.go
clearfat.go
closedchan.go
closure.go
closure1.go
closure2.go
closure3.go
closure4.go
cmp.go
cmp6.go
cmplx.go
cmplxdivide.c
cmplxdivide.go
cmplxdivide1.go
complit.go
complit1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
compos.go
const.go
const1.go
const2.go
const3.go
const4.go
const5.go
const6.go
convT2X.go
convert.go
convert1.go
convert2.go
convert3.go
convlit.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
convlit1.go
copy.go
copy1.go
crlf.go
ddd.go
ddd1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
ddd2.go
decl.go
declbad.go
defer.go
defererrcheck.go
deferfin.go
defernil.go
deferprint.go
deferprint.out
devirt.go cmd/compile: debug rewrite 2020-04-13 21:56:15 +00:00
directive.go cmd/compile: reject misplaced go:build comments 2020-10-13 01:16:45 +00:00
divide.go
divmod.go
empty.go
env.go
eof.go
eof1.go
escape.go
escape2.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape2n.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape3.go
escape4.go
escape5.go cmd/compile: add failing test case for #24305 2020-08-15 03:09:52 +00:00
escape_array.go
escape_calls.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_closure.go cmd/compile: improve escape analysis of known calls 2020-10-15 18:26:06 +00:00
escape_field.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_goto.go
escape_hash_maphash.go
escape_iface.go cmd/compile: fix devirtualization of promoted interface methods 2020-10-30 00:47:37 +00:00
escape_indir.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_level.go
escape_map.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_param.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_runtime_atomic.go
escape_selfassign.go
escape_slice.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_struct_param1.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_struct_param2.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_struct_return.go
escape_sync_atomic.go
escape_unsafe.go
fibo.go
finprofiled.go
float_lit.go
float_lit2.go
float_lit3.go
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
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
import2.go
import4.go
import5.go
import6.go
index.go
index0.go
index1.go
index2.go
indirect.go
indirect1.go
init.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
init1.go
initcomma.go
initempty.go
initialize.go
initializerr.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
initloop.go
inline.go cmd/compile: support inlining of type switches 2020-11-06 20:49:11 +00:00
inline_big.go
inline_caller.go
inline_callers.go
inline_literal.go
inline_math_bits_rotate.go
inline_sync.go test: re-enable atomic intrinsic related tests on riscv64 2020-03-25 01:11:15 +00:00
inline_variadic.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
int_lit.go
intcvt.go
intrinsic.go
intrinsic_atomic.go test: re-enable atomic intrinsic related tests on riscv64 2020-03-25 01:11:15 +00:00
iota.go
label.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
label1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
linkmain.go
linkmain_run.go
linkname.go
linkobj.go
linkx.go
linkx_run.go
literal.go
literal2.go
live.go
live1.go
live2.go
live_syscall.go
locklinear.go
loopbce.go
makechan.go test: remove duplicate code from makechan/makemap 2020-04-19 07:51:23 +00:00
makemap.go test: remove duplicate code from makechan/makemap 2020-04-19 07:51:23 +00:00
makenew.go
makeslice.go cmd/compile: optimize make+copy pattern to avoid memclr 2020-05-07 17:50:24 +00:00
mallocfin.go
map.go
map1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
mapclear.go
maplinear.go
mergemul.go
method.go
method1.go
method2.go test: match gccgo error messages 2020-12-03 16:28:44 +00:00
method3.go
method4.go
method5.go
method6.go
method7.go
named.go
named1.go
nil.go
nilcheck.go
nilptr.go cmd/dist: enable more tests on macOS/ARM64 2020-10-06 21:55:49 +00:00
nilptr2.go
nilptr3.go
nilptr4.go
nilptr5.go
nilptr5_aix.go
nilptr5_wasm.go
nilptr_aix.go
nosplit.go runtime: static lock ranking for the runtime (enabled by GOEXPERIMENT) 2020-04-07 21:51:03 +00:00
notinheap.go cmd/compile: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
notinheap2.go cmd/compile: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
notinheap3.go
nowritebarrier.go cmd/compile: allow mid-stack inlining when there is a cycle of recursion 2020-04-03 21:43:52 +00:00
nul1.go
opt_branchlikely.go
parentype.go
peano.go
phiopt.go
print.go
print.out
printbig.go
printbig.out
prove.go cmd/compile: check indirect connection between if block and phi block in addLocalInductiveFacts 2020-11-07 07:33:23 +00:00
range.go
recover.go
recover1.go
recover2.go
recover3.go
recover4.go
recover5.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
reflectmethod5.go cmd/compile: when marking REFLECTMETHOD, check for reflect package itself 2020-04-19 03:12:32 +00:00
reflectmethod6.go cmd/compile: when marking REFLECTMETHOD, check for reflect package itself 2020-04-19 03:12:32 +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 all: update to use filepath.WalkDir instead of filepath.Walk 2020-12-02 16:33:57 +00:00
rune.go
runtime.go cmd/compile: report error for unexported name only once 2020-08-25 16:06:36 +00:00
shift1.go test: recognize gofrontend error messages 2020-11-30 20:08:34 +00:00
shift2.go
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit.go
sinit_run.go
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
switch7.go
tinyfin.go
torture.go
turing.go
typecheck.go test: add copyright notice to typecheck.go 2020-04-17 13:30:49 +00:00
typecheckloop.go
typeswitch.go
typeswitch1.go
typeswitch2.go
typeswitch2b.go
typeswitch3.go
uintptrescapes.go
uintptrescapes2.go
uintptrescapes3.go
undef.go
utf.go
varerr.go
varinit.go
winbatch.go all: update to use filepath.WalkDir instead of filepath.Walk 2020-12-02 16:33:57 +00:00
writebarrier.go cmd/compile: improve generated code for concrete cases in type switches 2020-04-14 17:34:31 +00:00
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.