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Keith Randall 58d287e5e8 cmd/compile: ensure that loop condition is detected correctly 
We need to make sure that the terminating comparison has the right
sense given the increment direction. If the increment is positive,
the terminating comparsion must be < or <=. If the increment is
negative, the terminating comparison must be > or >=.

Do a few cleanups,  like constant-folding entry==0, adding comments,
removing unused "exported" fields.

Fixes #26116

Change-Id: I14230ee8126054b750e2a1f2b18eb8f09873dbd5
Reviewed-on: https://go-review.googlesource.com/121940
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2018-07-09 18:23:39 +00:00
..
alias3.dir
bench
chan all: fix article typos 2017-09-15 02:39:16 +00:00
closure3.dir cmd/compile: fix panic-okay-to-inline change; adjust tests 2018-06-06 20:35:23 +00:00
codegen test/codegen: improve test cases for arm64 2018-05-22 14:50:41 +00:00
ddd2.dir
dwarf
fixedbugs cmd/compile: ensure that loop condition is detected correctly 2018-07-09 18:23:39 +00:00
import2.dir
import4.dir
interface cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
intrinsic.dir
ken test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
linkname.dir
method4.dir
retjmp.dir cmd/asm: fix assembling return jump 2018-03-01 21:11:16 +00:00
safe
stress
syntax cmd/compile: better handling of incorrect type switches 2018-04-03 05:34:20 +00:00
uintptrescapes.dir
64bit.go
235.go
alg.go
alias1.go
alias2.go cmd/compile: cleanup method symbol creation 2018-04-05 22:01:17 +00:00
alias3.go
alias.go
align.go test: check that unaligned load-add opcodes work. 2018-04-09 18:57:37 +00:00
append1.go cmd/compile: optimize append(x, make([]T, y)...) slice extension 2018-05-06 04:28:23 +00:00
append.go cmd/compile: optimize append(x, make([]T, y)...) slice extension 2018-05-06 04:28:23 +00:00
args.go
armimm.go cmd/internal/obj: continue to optimize ARM's constant pool 2017-05-11 13:53:54 +00:00
assign1.go
assign.go
atomicload.go
bigalg.go
bigmap.go
blank1.go
blank.go
bom.go
bombad.go
bounds.go test: gofmt bounds.go 2018-05-29 02:39:16 +00:00
chancap.go runtime: use sparse mappings for the heap 2018-02-15 21:12:23 +00:00
chanlinear.go
char_lit1.go
char_lit.go
checkbce.go test: add missing copyright header to checkbce.go 2017-05-18 00:05:25 +00:00
clearfat.go
closedchan.go
closure1.go
closure2.go
closure3.go cmd/compile: fix reassignment check 2017-11-03 20:09:26 +00:00
closure.go
cmp6.go
cmp.go
cmplx.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
cmplxdivide1.go
cmplxdivide.c
cmplxdivide.go
complit1.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
complit.go
compos.go
const1.go cmd/compile: fix constant pointer comparison failure 2018-04-09 23:19:45 +00:00
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: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
copy.go
crlf.go
ddd1.go test: reenable ... test 2017-08-11 17:41:17 +00:00
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
deferfin.go
deferprint.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
deferprint.out
devirt.go
divide.go
divmod.go
empty.go
env.go
eof1.go
eof.go
errchk test: skip "# package/path" output from cmd/go in errchk 2017-12-13 21:32:01 +00:00
escape2.go test: add missing escape analysis test 2017-08-11 00:56:21 +00:00
escape2n.go test: add missing escape analysis test 2017-08-11 00:56:21 +00:00
escape3.go
escape4.go cmd/compile: fix panic-okay-to-inline change; adjust tests 2018-06-06 20:35:23 +00:00
escape5.go cmd/compile: in escape analysis, use element type for OIND of slice 2018-04-18 02:59:37 +00:00
escape_array.go cmd/compile: print accurate escape reason for non-const-length slices 2018-03-28 16:56:03 +00:00
escape_because.go test: update list of escape reasons 2018-03-29 14:17:40 +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
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 all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
gc.go
gcgort.go test: fast GC+concurrency+types verification 2018-05-08 21:15:48 +00:00
gcstring.go
goprint.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
goprint.out
goto.go cmd/compile: report block start for gotos jumping into blocks 2017-04-19 02:27:58 +00:00
heapsampling.go
helloworld.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
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
initialize.go
initializerr.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
initloop.go
inline_caller.go runtime: skip logical frames in runtime.Caller 2017-04-18 19:56:30 +00:00
inline_callers.go test: make inline_callers.go test not inline the runtime 2017-11-22 00:52:54 +00:00
inline_literal.go
inline_variadic.go cmd/compile: enable inlining variadic functions 2018-03-13 20:34:03 +00:00
inline.go cmd/compile: inline closures with captures 2017-11-05 04:18:05 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go cmd/compile: intrinsify atomics on MIPS64 2017-10-10 19:43:38 +00:00
intrinsic.go
iota.go
label1.go cmd/compile/internal/gc: don't panic on continue in switch 2017-04-12 14:27:45 +00:00
label.go
linkmain_run.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkmain.go
linkname.go
linkobj.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkx_run.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkx.go
literal.go
live1.go
live2.go cmd/compile: specialize map creation for small hint sizes 2017-11-02 17:03:45 +00:00
live_syscall.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
live.go cmd/compile: enable stack maps everywhere except unsafe points 2018-05-22 14:43:37 +00:00
locklinear.go test: skip locklinear's lockmany test for now 2018-04-05 10:53:40 +00:00
loopbce.go cmd/compile: ensure that loop condition is detected correctly 2018-07-09 18:23:39 +00:00
makechan.go cmd/compile: generate makechan calls with int arguments 2017-08-15 05:54:24 +00:00
makemap.go test: check that size argument errors are emitted at call site 2018-03-14 08:36:15 +00:00
makenew.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
mallocfin.go
map1.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
map.go
mapclear.go cmd/compile: optimize map-clearing range idiom 2018-05-08 21:15:16 +00:00
maplinear.go
mergemul.go cmd/compile: combine x*n - y*n into (x-y)*n 2017-09-03 14:29:38 +00:00
method1.go
method2.go cmd/compile: add two error position tests for the typechecker 2017-10-12 20:50:20 +00:00
method3.go
method4.go
method5.go
method6.go cmd/compile: add two error position tests for the typechecker 2017-10-12 20:50:20 +00:00
method7.go cmd/compile: fix method expressions with anonymous receivers 2018-04-06 15:39:11 +00:00
method.go
named1.go
named.go
nil.go
nilcheck.go
nilptr2.go
nilptr3_wasm.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
nilptr3.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
nilptr4.go
nilptr.go
nosplit.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
notinheap2.go
notinheap3.go cmd/compile: []T where T is go:notinheap does not need write barriers 2017-11-06 21:07:57 +00:00
notinheap.go
nowritebarrier.go cmd/compile: improve coverage of nowritebarrierrec check 2017-10-29 19:36:44 +00:00
nul1.go
opt_branchlikely.go
parentype.go
peano.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
phiopt.go
print.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
print.out cmd/compile: fix print/println when input is uint 2017-09-26 04:08:38 +00:00
printbig.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
printbig.out
prove.go cmd/compile: ensure that loop condition is detected correctly 2018-07-09 18:23:39 +00:00
range.go cmd/compile: improve single blank variable handling in walkrange 2017-09-12 05:50:54 +00:00
README.md test: use the version of Go used to run run.go 2018-03-03 19:52:00 +00:00
recover1.go
recover2.go
recover3.go
recover4.go all: use Fatalf instead of Fatal if format is given 2018-01-10 01:35:45 +00:00
recover5.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
recover.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
rename1.go cmd/compile: avoid duplicate cast error 2017-08-22 13:44:35 +00:00
rename.go
reorder2.go
reorder.go
retjmp.go cmd/asm: fix assembling return jump 2018-03-01 21:11:16 +00:00
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
run.go test: add comments for all test actions 2018-06-06 15:12:32 +00:00
rune.go
runtime.go
shift1.go cmd/compile: permit indices of certain non-constant shifts 2017-12-01 20:39:50 +00:00
shift2.go
sieve.go
sigchld.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
sigchld.out
simassign.go
sinit_run.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
sinit.go
sizeof.go
slice3.go
slice3err.go
slicecap.go
sliceopt.go cmd/compile: make prove pass use unsatisfiability 2018-03-08 22:25:25 +00:00
solitaire.go
stack.go
strcopy.go test: add test to verify that string copies don't get optimized away 2018-06-12 19:10:34 +00:00
strength.go
string_lit.go
stringrange.go
struct0.go
switch2.go
switch3.go
switch4.go
switch5.go cmd/compile: make duplicate expr cases readable 2017-05-19 18:11:51 +00:00
switch6.go
switch7.go cmd/compile: make duplicate expr cases readable 2017-05-19 18:11:51 +00:00
switch.go
tinyfin.go
torture.go
turing.go
typecheck.go
typecheckloop.go
typeswitch1.go
typeswitch2.go
typeswitch3.go
typeswitch.go
uintptrescapes2.go cmd/compile: fix go:uintptrescapes tag for unnamed parameters 2018-02-14 21:41:39 +00:00
uintptrescapes.go
undef.go
utf.go
varerr.go
varinit.go
writebarrier.go cmd/compile: don't use statictmps for SSA-able composite literals 2017-05-11 18:28:40 +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

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.