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ee69c21747
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Josh Bleecher Snyder ee69c21747 cmd/compile: don't use statictmps for SSA-able composite literals 
The writebarrier test has to change.
Now that T23 composite literals are passed to the backend,
they get SSA'd, so writes to their fields are treated separately,
so the relevant part of the first write to t23 is now a dead store.
Preserve the intent of the test by splitting it up into two functions.

Reduces code size a bit:

name        old object-bytes  new object-bytes  delta
Template           386k ± 0%         386k ± 0%    ~     (all equal)
Unicode            202k ± 0%         202k ± 0%    ~     (all equal)
GoTypes           1.16M ± 0%        1.16M ± 0%    ~     (all equal)
Compiler          3.92M ± 0%        3.91M ± 0%  -0.19%  (p=0.008 n=5+5)
SSA               7.91M ± 0%        7.91M ± 0%    ~     (all equal)
Flate              228k ± 0%         228k ± 0%  -0.05%  (p=0.008 n=5+5)
GoParser           283k ± 0%         283k ± 0%    ~     (all equal)
Reflect            952k ± 0%         952k ± 0%  -0.06%  (p=0.008 n=5+5)
Tar                188k ± 0%         188k ± 0%  -0.09%  (p=0.008 n=5+5)
XML                406k ± 0%         406k ± 0%  -0.02%  (p=0.008 n=5+5)
[Geo mean]         649k              648k       -0.04%

Fixes #18872

Change-Id: Ifeed0f71f13849732999aa731cc2bf40c0f0e32a
Reviewed-on: https://go-review.googlesource.com/43154
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-05-11 18:28:40 +00:00
..
alias3.dir [dev.typealias] cmd/compile: export/import test cases for type aliases 2017-01-20 05:55:53 +00:00
bench test/bench/go1: fix typo in parserdata_test.go comment 2017-03-22 03:23:16 +00:00
chan cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
ddd2.dir all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
dwarf
fixedbugs cmd/compile: avoid checkwidth of [...] arrays 2017-05-11 18:18:55 +00:00
import2.dir all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
import4.dir
interface cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
intrinsic.dir cmd/compile: intrinsics for math/bits.TrailingZerosX 2017-03-16 02:44:16 +00:00
ken all: fix spelling mistakes 2016-04-03 17:03:15 +00:00
linkname.dir cmd/compile: include linknames in export data 2017-02-08 20:59:45 +00:00
method4.dir
safe
stress all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
syntax cmd/compile/internal/parser: improved a couple of error messages 2017-02-24 18:54:36 +00:00
uintptrescapes.dir cmd/compile, syscall: add //go:uintptrescapes comment, and use it 2016-07-06 20:48:41 +00:00
64bit.go
235.go
alg.go test: add test that required algs get generated 2016-04-24 21:36:52 +00:00
alias1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
alias2.go [dev.typealias] cmd/compile: declare methods after resolving receiver type 2017-01-25 08:04:17 +00:00
alias3.go [dev.typealias] cmd/compile: export/import test cases for type aliases 2017-01-20 05:55:53 +00:00
alias.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
append1.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
append.go
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 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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
bounds.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
chancap.go
chanlinear.go
char_lit1.go
char_lit.go
checkbce.go cmd/compile: improve generic rules for BCE based on AND operations. 2017-03-04 16:13:07 +00:00
clearfat.go
closedchan.go
closure1.go
closure2.go
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 runtime: make complex division c99 compatible 2017-03-15 22:45:17 +00:00
cmplxdivide.c runtime: make complex division c99 compatible 2017-03-15 22:45:17 +00:00
cmplxdivide.go runtime: make complex division c99 compatible 2017-03-15 22:45:17 +00:00
complit1.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
complit.go
compos.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
const1.go
const2.go
const3.go
const4.go
const5.go
const6.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
const.go cmd/compile: fix compiler bug for constant equality comparison 2016-09-17 01:12:24 +00:00
convert1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
convert2.go cmd/compile: ignore struct tags when converting structs 2016-10-04 17:10:47 +00:00
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 cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
ddd2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
ddd.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
decl.go
declbad.go
defer.go
deferfin.go
deferprint.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
deferprint.out
devirt.go cmd/compile: de-virtualize interface calls 2017-03-14 18:49:23 +00:00
divide.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
divmod.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
empty.go
env.go
eof1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
eof.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
errchk cmd/vet: make checking example names in _test packages more robust 2016-06-28 22:09:00 +00:00
escape2.go cmd/compile: ignore some dead code during escape analysis 2017-02-27 21:31:04 +00:00
escape2n.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape4.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape5.go cmd/compile: unnamed parameters do not escape 2017-03-24 17:14:00 +00:00
escape_array.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_because.go cmd/compile: add explicit 'where' to EscStep data for explanations 2016-10-26 18:46:59 +00:00
escape_calls.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_closure.go cmd/compile/internal/syntax: establish principled position information 2017-02-15 01:33:03 +00:00
escape_field.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_iface.go cmd/compile: avoid leak of dottype expression on double assignment form 2016-10-10 12:09:16 +00:00
escape_indir.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_level.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_map.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_param.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_slice.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_struct_param1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_struct_param2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape_struct_return.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 test/float_lit2: fix expressions in comment 2016-09-14 16:39:47 +00:00
float_lit3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
float_lit.go
floatcmp.go
for.go
func1.go
func2.go
func3.go
func4.go
func5.go
func6.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
func7.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
func8.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
func.go
funcdup2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
funcdup.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
gc1.go
gc2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
gc.go
gcstring.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
goprint.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +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 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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
import4.go
import5.go cmd/compile: be slightly more tolerant in case of certain syntax errors 2017-03-24 20:07:15 +00:00
import6.go cmd/compile/internal/syntax: removed gcCompat code needed to pass orig. tests 2017-02-10 01:22:30 +00:00
import.go
index0.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
index1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
index2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
index.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
indirect1.go
indirect.go
init1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
init.go Revert "cmd/compile: improve error message if init is directly invoked" 2017-03-06 23:48:37 +00:00
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 runtime: include inlined calls in result of CallersFrames 2017-03-29 17:27:38 +00:00
inline_literal.go cmd/compile: copy literals when inlining 2017-03-03 21:29:32 +00:00
inline_variadic.go cmd/compile: generate code that type checks when inlining variadic functions 2016-11-30 19:46:00 +00:00
inline.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go cmd/compile: intrinsify Ctz, Bswap on ARM 2016-09-12 19:26:31 +00:00
intrinsic.go cmd/compile: intrinsify Ctz{32,64} and Bswap{32,64} on s390x 2016-09-19 19:03:01 +00:00
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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
linkmain_run.go test: fix linkmain test 2015-12-17 23:36:13 +00:00
linkmain.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
linkname.go cmd/compile: include linknames in export data 2017-02-08 20:59:45 +00:00
linkobj.go cmd/compile: add -linkobj flag to allow writing object file in two parts 2016-05-09 17:31:45 +00:00
linkx_run.go test: print output on link -X failure 2016-04-20 17:37:35 +00:00
linkx.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
literal.go
live1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
live2.go cmd/compile: mark temps with new AutoTemp flag, and use it. 2016-10-31 19:38:50 +00:00
live_syscall.go cmd/compile: mark temps with new AutoTemp flag, and use it. 2016-10-31 19:38:50 +00:00
live.go runtime: add mapdelete_fast* 2017-03-21 06:07:24 +00:00
locklinear.go test: deflake locklinear again 2017-04-05 18:46:31 +00:00
loopbce.go cmd/compile: check loop rescheduling with stack bound, not counter 2017-03-08 18:52:12 +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
maplinear.go
method1.go cmd/compile: ignore receiver parameters in Eqtype 2016-03-17 00:38:15 +00:00
method2.go test: avoid matching file names in errcheck 2016-10-18 05:32:37 +00:00
method3.go
method4.go
method5.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
method.go
named1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
named.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nil.go
nilcheck.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nilptr2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nilptr3.go cmd/compile: re-enable nilcheck removal in same block 2017-02-17 19:19:59 +00:00
nilptr4.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nilptr.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nosplit.go cmd/internal/objabi: extract shared functionality from obj 2017-04-19 00:00:09 +00:00
notinheap2.go cmd/compile: add go:notinheap type pragma 2016-10-15 17:58:14 +00:00
notinheap.go cmd/compile/internal/gc: inline typedcl0 and typedcl1 2017-02-01 22:52:32 +00:00
nowritebarrier.go cmd/compile, runtime: add go:yeswritebarrierrec pragma 2016-10-15 17:58:11 +00:00
nul1.go cmd/compile/internal/gc: enable new parser by default 2016-10-25 22:28:40 +00:00
opt_branchlikely.go cmd/compile: insert scheduling checks on loop backedges 2017-01-09 21:01:29 +00:00
parentype.go
peano.go
phiopt.go test: re-enable phi optimization test 2016-09-13 20:06:13 +00:00
print.go
print.out
printbig.go
printbig.out
prove.go cmd/compile/internal/gc: improve comparison with constant strings 2017-04-07 15:40:25 +00:00
range.go cmd/compile: fix assignment order in string range loop 2017-02-28 08:23:52 +00:00
recover1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
recover2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
recover3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
recover4.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
recover5.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
recover.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rename.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
reorder2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
reorder.go cmd/compile: Ensure left-to-right assignment 2017-02-11 21:46:21 +00:00
return.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate0.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
run.go cmd/compile: check width of embedded interfaces in expandiface 2017-04-28 20:07:38 +00:00
rune.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
runtime.go cmd/compile/internal/gc: separate builtin and real runtime packages 2017-03-01 01:06:32 +00:00
shift1.go cmd/compile: more error position tests for the typechecker 2017-04-24 12:37:49 +00:00
shift2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit_run.go
sinit.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
sizeof.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
slice3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
slice3err.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
slicecap.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
sliceopt.go cmd/compile: use masks instead of branches for slicing 2016-10-27 20:22:49 +00:00
solitaire.go
stack.go
strength.go cmd/compile: generalize strength reduction of mulq 2016-03-30 22:27:13 +00:00
string_lit.go
stringrange.go
struct0.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
switch2.go cmd/compile/internal/syntax: match old parser errors and line numbers 2016-08-19 01:10:21 +00:00
switch3.go
switch4.go
switch5.go cmd/compile/internal/syntax: removed gcCompat code needed to pass orig. tests 2017-02-10 01:22:30 +00:00
switch6.go cmd/compile: improve error for wrong type in switch 2017-02-02 17:36:43 +00:00
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
typeswitch1.go
typeswitch2.go cmd/compile/internal/syntax: removed gcCompat code needed to pass orig. tests 2017-02-10 01:22:30 +00:00
typeswitch3.go cmd/compile: add test for non interface type switch 2017-03-25 22:52:54 +00:00
typeswitch.go
uintptrescapes2.go cmd/compile: mark temps with new AutoTemp flag, and use it. 2016-10-31 19:38:50 +00:00
uintptrescapes.go cmd/compile, syscall: add //go:uintptrescapes comment, and use it 2016-07-06 20:48:41 +00:00
undef.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
utf.go
varerr.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 test: lock in test for _ assignment evaluation/zerodivide panic 2016-12-23 17:35:24 +00:00