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go/test
Keith Randall d4663e1353 cmd/compile: don't write back unchanged slice results
Don't write back parts of a slicing operation if they
are unchanged from the source of the slice.  For example:

x.s = x.s[0:5]         // don't write back pointer or cap
x.s = x.s[:5]          // don't write back pointer or cap
x.s = x.s[:5:7]        // don't write back pointer

There is more to be done here, for example:

x.s = x.s[:len(x.s):7] // don't write back ptr or len

This CL can't handle that one yet.

Fixes #14855

Change-Id: Id1e1a4fa7f3076dc1a76924a7f1cd791b81909bb
Reviewed-on: https://go-review.googlesource.com/20954
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
2016-03-21 23:40:18 +00:00
..
bench encoding/base64: fix streaming decode of padding-free base64 2016-01-08 15:07:45 +00:00
bugs
chan Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
ddd2.dir
dwarf
fixedbugs test/fixedbugs: add s390x case to issue11656 2016-03-21 07:09:36 +00:00
import2.dir
import4.dir test: adjust gccgo expected import errors 2015-10-07 14:37:44 +00:00
interface
ken
method4.dir
safe
stress
syntax cmd/compile: use bufio.Reader directly in lexer 2016-03-11 21:27:23 +00:00
64bit.go
235.go
alias1.go
alias.go
append.go
args.go
assign1.go
assign.go
atomicload.go cmd/compile: keep value use counts in SSA 2016-03-17 04:20:02 +00:00
bigalg.go
bigmap.go
blank1.go cmd/compile: don't allow blank method declarations on builtins 2015-12-02 18:26:38 +00:00
blank.go
bom.go
bombad.go
bounds.go
chancap.go
chanlinear.go
char_lit1.go
char_lit.go
clearfat.go
closedchan.go
closure1.go
closure2.go
closure.go
cmp6.go
cmp.go Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
cmplx.go
cmplxdivide1.go
cmplxdivide.c
cmplxdivide.go
complit1.go
complit.go
compos.go
const1.go
const2.go
const3.go
const4.go all: link to https instead of http 2015-07-11 14:36:33 +00:00
const5.go all: link to https instead of http 2015-07-11 14:36:33 +00:00
const6.go
const.go cmd/compile: allow huge rsh in constants arithmetic 2015-08-21 20:27:22 +00:00
convert1.go
convert3.go
convert.go
convlit1.go
convlit.go
convT2X.go
copy.go
crlf.go
ddd1.go
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
deferfin.go
deferprint.go
deferprint.out
divide.go
divmod.go
empty.go
env.go
eof1.go
eof.go
errchk Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
escape2.go cmd/compile: better modeling of escape across loop levels 2016-01-13 04:01:00 +00:00
escape2n.go cmd/compile: better modeling of escape across loop levels 2016-01-13 04:01:00 +00:00
escape3.go
escape4.go
escape5.go
escape_array.go
escape_because.go cmd/compile: escape analysis explanations added to -m -m output 2016-03-17 13:29:48 +00:00
escape_calls.go
escape_closure.go
escape_field.go
escape_iface.go cmd/compile: avoid leak of dottype expression if type does not contain pointers. 2016-02-19 16:10:14 +00:00
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 runtime: fix finalization and profiling of tiny allocations 2015-11-03 18:57:18 +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 Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
func7.go Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
func8.go test: use go:noinline consistently 2015-11-03 02:01:34 +00:00
func.go
funcdup2.go
funcdup.go
gc1.go
gc2.go
gc.go
gcstring.go
goprint.go
goprint.out
goto.go [dev.ssa] test: gofmt {goto,label,label1}.go 2015-07-20 20:09:34 +00:00
heapsampling.go test: really force heap profile update in heapsampling.go 2015-11-12 18:32:13 +00:00
helloworld.go
helloworld.out
if.go
import1.go
import2.go
import4.go
import5.go
import.go
index0.go
index1.go
index2.go
index.go Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
indirect1.go
indirect.go
init1.go
init.go
initcomma.go
initialize.go
initializerr.go
initloop.go cmd/compile: use []*Node instead of NodeList in sinit 2015-09-05 02:25:01 +00:00
inline.go cmd/compile: allow inlining of functions with switch statements 2016-03-21 23:05:10 +00:00
int_lit.go
intcvt.go
iota.go
label1.go [dev.ssa] cmd/compile: implement control flow handling 2015-07-23 00:45:26 +00:00
label.go [dev.ssa] cmd/compile: implement control flow handling 2015-07-23 00:45:26 +00:00
linkmain_run.go test: fix linkmain test 2015-12-17 23:36:13 +00:00
linkmain.go cmd/link: reject non-package main toplevel.a file, remove dead code 2015-12-17 20:59:51 +00:00
linkx_run.go cmd/link: remove alternate -X flag spelling 2016-02-19 01:35:25 +00:00
linkx.go cmd/link: detect -X setting non-string variable 2015-06-29 20:28:36 +00:00
literal.go
live1.go
live2.go [dev.ssa] cmd/compile: default compile+test with SSA 2015-10-30 20:35:20 +00:00
live_syscall.go cmd/compile: recognize Syscall-like functions for liveness analysis 2016-01-14 01:16:45 +00:00
live.go [dev.ssa] cmd/compile: default compile+test with SSA 2015-10-30 20:35:20 +00:00
mallocfin.go
map1.go
map.go
maplinear.go
method1.go cmd/compile: ignore receiver parameters in Eqtype 2016-03-17 00:38:15 +00:00
method2.go
method3.go
method4.go
method5.go
method.go
named1.go
named.go
nil.go
nilcheck.go [dev.ssa] cmd/compile: make cse faster 2016-01-28 20:59:20 +00:00
nilptr2.go
nilptr3_ssa.go [dev.ssa] cmd/compile: get rid of nil checks before float loads/stores 2016-02-26 04:33:46 +00:00
nilptr3.go [dev.ssa] test: remove extra tests from non-SSA builds 2016-02-26 19:07:16 +00:00
nilptr4.go
nilptr.go
nosplit.go test: add s390x case to nosplit test 2016-03-21 08:14:51 +00:00
nul1.go
opt_branchlikely.go [dev.ssa] cmd/compile: adjust branch likeliness for calls/loops 2016-03-01 20:09:41 +00:00
parentype.go
peano.go
phiopt.go [dev.ssa] cmd/compile/internal/ssa: simplify boolean phis 2016-03-01 17:56:13 +00:00
print.go
print.out
printbig.go
printbig.out
prove.go cmd/compile/internal/ssa: generalize prove to all booleans 2016-03-13 12:05:41 +00:00
range.go
recover1.go
recover2.go
recover3.go
recover4.go test: move allocation before munmap in recover4 2015-09-16 08:51:48 +00:00
recover.go
reflectmethod1.go cmd/compile: track reflect.Type.Method in deadcode 2016-03-11 21:19:20 +00:00
reflectmethod2.go cmd/compile: track reflect.Type.Method in deadcode 2016-03-11 21:19:20 +00:00
reflectmethod3.go cmd/compile: track reflect.Type.Method in deadcode 2016-03-11 21:19:20 +00:00
reflectmethod4.go cmd/link: treat reflect.Value.Method like Call 2016-03-11 22:07:02 +00:00
rename1.go
rename.go
reorder2.go test: use go:noinline consistently 2015-11-03 02:01:34 +00:00
reorder.go
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
run.go cmd/compile: escape analysis explanations added to -m -m output 2016-03-17 13:29:48 +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: allow static init for unsafe.Pointer(&x) where x is global 2015-07-07 21:51:57 +00:00
sizeof.go
slice3.go
slice3err.go
slicecap.go
sliceopt.go [dev.ssa] cmd/compile: default compile+test with SSA 2015-10-30 20:35:20 +00:00
solitaire.go
stack.go
string_lit.go
stringrange.go
struct0.go
switch2.go cmd/compile: address several more 1.6 TODOs in parser 2015-11-21 07:21:23 +00:00
switch3.go
switch4.go
switch.go
tinyfin.go runtime: fix finalization and profiling of tiny allocations 2015-11-03 18:57:18 +00:00
torture.go
turing.go
typecheck.go
typecheckloop.go cmd/compile: convert typecheck_stack to []*Node 2015-09-06 23:50:51 +00:00
typeswitch1.go
typeswitch2.go
typeswitch3.go
typeswitch.go
undef.go
utf.go
varerr.go
varinit.go
writebarrier.go cmd/compile: don't write back unchanged slice results 2016-03-21 23:40:18 +00:00
zerodivide.go