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a6755fc0de
go/test
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Cholerae Hu a6755fc0de cmd/compile: check indirect connection between if block and phi block in addLocalInductiveFacts 
CL 244579 added guard clauses to prevent a faulty state that was
possible under the incorrect logic of the uniquePred loop in
addLocalInductiveFacts. That faulty state was still making the
intended optimization, but not for the correct reason.
Removing the faulty state also removed the overly permissive application
of the optimization, and therefore made these two tests fail.
We disabled the tests of this optimization in CL 244579 to allow us to
quickly apply the fix in the CL. This CL now corrects the logic of the
uniquePred loop in order to apply the optimization correctly.

The comment above the uniquePred loop says that it will follow unique
predecessors until it reaches a join point. Without updating the child
node on each iteration, it cannot follow the chain of unique
predecessors more than one step. Adding the update to the child node
on each iteration of the loop allows the logic to follow the chain of
unique predecessors until reaching a join point (because a non-unique
predecessor will signify a join point).

Updates #40502.

Change-Id: I23d8367046a2ab3ce4be969631f9ba15dc533e6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/246157
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
2020-11-07 07:33:23 +00:00
..
alias3.dir
bench test/bench/go1: add go.mod file 2019-03-06 18:53:12 +00:00
chan test/chan: fix trivial typos 2020-03-25 22:22:20 +00:00
closure3.dir cmd/compile: allow inlining of "for" loops 2020-10-15 18:26:33 +00:00
codegen cmd/compile: optimize shift pairs and masks on s390x 2020-11-06 10:45:31 +00:00
ddd2.dir
dwarf
fixedbugs cmd/compile: support inlining of type switches 2020-11-06 20:49:11 +00:00
import2.dir
import4.dir
interface test: add tests for runtime.itab.init 2019-11-06 09:09:59 +00:00
intrinsic.dir
ken all: fix typos 2019-09-08 17:28:20 +00:00
linkname.dir cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
method4.dir
oldescape_linkname.dir cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
retjmp.dir
runtime test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
stress
syntax cmd/compile/internal/syntax: better error when an assignment is used in value context 2020-02-21 22:57:52 +00:00
uintptrescapes.dir
64bit.go
235.go
alg.go
alias1.go
alias2.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
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 test, test/fixedbugs, crypto/x509, go/internal/gccgoimporter: fix typos 2020-03-29 17:12:56 +00:00
blank.go
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 runtime: handle 64bits addresses for AIX 2018-11-26 14:06:28 +00:00
chanlinear.go test, test/fixedbugs, crypto/x509, go/internal/gccgoimporter: fix typos 2020-03-29 17:12:56 +00:00
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 all: fix typos 2019-09-08 17:28:20 +00:00
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 cmd/compile: simplify OPTRLIT handling 2019-09-26 18:45:53 +00:00
complit.go
compos.go
const1.go cmd/compile: fix ICE from invalid operations on float/complex constants 2019-03-28 17:46:55 +00:00
const2.go
const3.go
const4.go
const5.go
const6.go
const.go cmd/compile: apply constant folding to ORUNESTR 2019-09-26 23:54:29 +00:00
convert1.go
convert2.go
convert3.go
convert.go
convlit1.go
convlit.go cmd/compile: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +00:00
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 cmd/compile: don't report not enough args error if call is undefined 2020-09-12 08:50:45 +00:00
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
defererrcheck.go test: re-enable open-coded defer test on riscv64 2020-02-26 16:54:17 +00:00
deferfin.go
defernil.go cmd/compile: on Wasm and AIX, let deferred nil function panic at invocation 2019-10-16 00:05:37 +00:00
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
eof1.go
eof.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 cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape5.go cmd/compile: add failing test case for #24305 2020-08-15 03:09:52 +00:00
escape_array.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
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 cmd/compile: preserve loop depth when evaluating block 2019-09-06 01:35:46 +00:00
escape_hash_maphash.go hash/maphash: mark call into runtime hash function as not escaping 2019-11-16 20:31:45 +00:00
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 cmd/compile: silence esc diagnostics about directiface OCONVIFACEs 2019-09-03 17:52:06 +00:00
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 test: fix escape_runtime_atomic.go 2019-04-17 22:55:26 +00:00
escape_selfassign.go test: add regress test cases for self-assignment 2019-04-17 16:36:56 +00:00
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 test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
escape_sync_atomic.go runtime/internal/atomic: remove bad go:noescape annotations on Loadp 2019-04-17 19:09:15 +00:00
escape_unsafe.go cmd/compile: silence esc diagnostics about directiface OCONVIFACEs 2019-09-03 17:52:06 +00:00
escape.go
fibo.go
finprofiled.go all: fix typos 2019-09-08 17:28:20 +00:00
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 test: adjust a test to work with js/wasm's background goroutine 2019-10-10 19:38:06 +00:00
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 all: fix typos 2019-09-08 17:28:20 +00:00
indirect1.go
indirect.go
init1.go
init.go cmd/compile: reorganize init functions 2019-03-18 20:10:55 +00:00
initcomma.go
initempty.go cmd/compile: add test for skipping empty init functions 2019-11-04 20:19:15 +00:00
initialize.go
initializerr.go
initloop.go
inline_big.go cmd/compile: output cost while inlining function with Debug['m'] > 1 2020-02-26 14:44:24 +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 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
inline.go cmd/compile: support inlining of type switches 2020-11-06 20:49:11 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go test: re-enable atomic intrinsic related tests on riscv64 2020-03-25 01:11:15 +00:00
intrinsic.go
iota.go
label1.go
label.go
linkmain_run.go test: avoid writing temporary files to GOROOT 2019-11-18 14:40:07 +00:00
linkmain.go
linkname.go test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
linkobj.go
linkx_run.go cmd/compile: don't statically copy string-typed variables 2019-10-03 18:08:32 +00:00
linkx.go [dev.link] all: clean up some TODOs 2019-11-01 20:13:05 +00:00
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: extend ssa.go to handle 1-element array and 1-field struct 2019-09-03 19:33:04 +00:00
live_syscall.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
live.go cmd/compile,cmd/link: fix and re-enable open-coded defers on riscv64 2020-01-29 16:34:44 +00:00
locklinear.go
loopbce.go cmd/compile: detect indvars that are bound by other indvars 2019-09-26 18:47:12 +00:00
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
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 test: use a real use function in nilptr2.go 2019-05-11 03:02:33 +00:00
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/dist: enable more tests on macOS/ARM64 2020-10-06 21:55:49 +00:00
nosplit.go runtime: static lock ranking for the runtime (enabled by GOEXPERIMENT) 2020-04-07 21:51:03 +00:00
notinheap2.go cmd/compile: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
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: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
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 all: fix typos 2019-09-08 17:28:20 +00:00
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
README.md test: document specifying individual test files as operands 2020-08-28 21:23:32 +00:00
recover1.go
recover2.go cmd/compile,runtime: generate hash functions only for types which are map keys 2019-09-03 20:41:29 +00:00
recover3.go
recover4.go
recover5.go
recover.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
rename1.go cmd/compile: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +00:00
rename.go
reorder2.go
reorder.go
retjmp.go
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
run.go all: implement GO386=softfloat 2020-10-06 22:49:38 +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 cmd/compile: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +00:00
shift2.go
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit_run.go test: avoid writing temporary files to GOROOT 2019-11-18 14:40:07 +00:00
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 all: fix typos 2019-09-08 17:28:20 +00:00
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 test: add copyright notice to typecheck.go 2020-04-17 13:30:49 +00:00
typecheckloop.go
typeswitch1.go
typeswitch2.go cmd/compile: move duplicate type-case checking into typecheck 2019-09-11 23:33:11 +00:00
typeswitch2b.go cmd/compile/internal/gc: reword "declared and not used" error message 2019-10-28 23:34:13 +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: fix //go:uintptrescapes for basic method calls 2019-11-05 00:26:30 +00:00
uintptrescapes3.go cmd/compile: fix //go:uintptrescapes for basic method calls 2019-11-05 00:26:30 +00:00
uintptrescapes.go
undef.go
utf.go
varerr.go
varinit.go
winbatch.go all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +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.