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go/test
Michael Munday 6ec4c71eef cmd/compile: add SSA rules for s390x compare-and-branch instructions
This commit adds SSA rules for the s390x combined compare-and-branch
instructions. These have a shorter encoding than separate compare
and branch instructions and they also don't clobber the condition
code (a.k.a. flag register) reducing pressure on the flag allocator.

I have deleted the 'loop_test.go' file and replaced it with a new
codegen test which performs a wider range of checks.

Object sizes from compilebench:

name                      old object-bytes  new object-bytes  delta
Template                        562kB ± 0%        561kB ± 0%   -0.28%  (p=0.000 n=10+10)
Unicode                         217kB ± 0%        217kB ± 0%   -0.17%  (p=0.000 n=10+10)
GoTypes                        2.03MB ± 0%       2.02MB ± 0%   -0.59%  (p=0.000 n=10+10)
Compiler                       8.16MB ± 0%       8.11MB ± 0%   -0.62%  (p=0.000 n=10+10)
SSA                            27.4MB ± 0%       27.0MB ± 0%   -1.45%  (p=0.000 n=10+10)
Flate                           356kB ± 0%        356kB ± 0%   -0.12%  (p=0.000 n=10+10)
GoParser                        438kB ± 0%        436kB ± 0%   -0.51%  (p=0.000 n=10+10)
Reflect                        1.37MB ± 0%       1.37MB ± 0%   -0.42%  (p=0.000 n=10+10)
Tar                             485kB ± 0%        483kB ± 0%   -0.39%  (p=0.000 n=10+10)
XML                             630kB ± 0%        621kB ± 0%   -1.45%  (p=0.000 n=10+10)
[Geo mean]                     1.14MB            1.13MB        -0.60%

name                      old text-bytes    new text-bytes    delta
HelloSize                       763kB ± 0%        754kB ± 0%   -1.30%  (p=0.000 n=10+10)
CmdGoSize                      10.7MB ± 0%       10.6MB ± 0%   -0.91%  (p=0.000 n=10+10)
[Geo mean]                     2.86MB            2.82MB        -1.10%

Change-Id: Ibca55d9c0aa1254aee69433731ab5d26a43a7c18
Reviewed-on: https://go-review.googlesource.com/c/go/+/198037
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-10-08 10:03:04 +00:00
..
alias3.dir
bench test/bench/go1: add go.mod file 2019-03-06 18:53:12 +00:00
chan test: add a test for gccgo bug in handling break statement in a select 2019-07-10 18:02:11 +00:00
closure3.dir cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
codegen cmd/compile: add SSA rules for s390x compare-and-branch instructions 2019-10-08 10:03:04 +00:00
ddd2.dir
dwarf
fixedbugs cmd/link: produce valid binaries with large data section on wasm 2019-10-07 18:09:29 +00:00
import2.dir
import4.dir
interface
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: 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
assign1.go
assign.go
atomicload.go
bigalg.go
bigmap.go
blank1.go test: update blank1.go for changed gofrontend error messages 2019-06-23 22:20:39 +00:00
blank.go
bom.go
bombad.go
bounds.go test: gofmt bounds.go 2018-05-29 02:39:16 +00:00
chancap.go runtime: handle 64bits addresses for AIX 2018-11-26 14:06:28 +00:00
chanlinear.go
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: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +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
escape2.go test: add regress test for #27557 2019-09-25 17:06:15 +00:00
escape2n.go test: add regress test for #27557 2019-09-25 17:06:15 +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: silence esc diagnostics about directiface OCONVIFACEs 2019-09-03 17:52:06 +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: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
escape_closure.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
escape_field.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
escape_goto.go cmd/compile: preserve loop depth when evaluating block 2019-09-06 01:35:46 +00:00
escape_iface.go cmd/compile: use underlying OCOMPLIT's position for OPTRLIT 2019-09-25 17:07:09 +00:00
escape_indir.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +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: silence esc diagnostics about directiface OCONVIFACEs 2019-09-03 17:52:06 +00:00
escape_param.go cmd/compile: reimplement parameter leak encoding 2019-10-07 18:50:14 +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: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_struct_param1.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
escape_struct_param2.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +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 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
heapsampling.go test: improve test coverage for heap sampling 2019-03-07 21:05:15 +00:00
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 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
initialize.go
initializerr.go
initloop.go
inline_big.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +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 cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
inline_variadic.go
inline.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
int_lit.go
intcvt.go
intrinsic_atomic.go
intrinsic.go
iota.go
label1.go
label.go
linkmain_run.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkmain.go
linkname.go test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
linkobj.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkx_run.go cmd/compile: don't statically copy string-typed variables 2019-10-03 18:08:32 +00:00
linkx.go cmd/compile: don't statically copy string-typed variables 2019-10-03 18:08:32 +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: extend ssa.go to handle 1-element array and 1-field struct 2019-09-03 19:33:04 +00:00
locklinear.go test: skip locklinear's lockmany test for now 2018-04-05 10:53:40 +00:00
loopbce.go cmd/compile: detect indvars that are bound by other indvars 2019-09-26 18:47:12 +00:00
makechan.go
makemap.go
makenew.go
mallocfin.go
map1.go
map.go
mapclear.go cmd/compile: optimize map-clearing range idiom 2018-05-08 21:15:16 +00:00
maplinear.go
mergemul.go
method1.go
method2.go
method3.go
method4.go
method5.go
method6.go
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 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/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
nosplit.go ../test: set GOPATH in nosplit.go 2019-03-12 20:46:29 +00:00
notinheap2.go
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: disallow converting string to notinheap slice 2018-11-02 19:53:59 +00:00
nowritebarrier.go
nul1.go
opt_branchlikely.go all: fix typos 2019-09-08 17:28:20 +00:00
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
printbig.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
printbig.out
prove.go cmd/compile: run deadcode before nilcheck for better statement relocation 2019-10-03 21:12:13 +00:00
range.go
README.md
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
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 test: make -all_codegen default to true on linux-amd64 builder 2019-09-26 17:42:40 +00:00
rune.go
runtime.go
shift1.go cmd/compile: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +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 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 test: add test to verify that string copies don't get optimized away 2018-06-12 19:10:34 +00:00
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
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: move duplicate type-case checking into typecheck 2019-09-11 23:33:11 +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: better integrate parameter tagging with escape.go 2019-09-10 23:01:30 +00:00
uintptrescapes.go
undef.go
utf.go
varerr.go
varinit.go
writebarrier.go cmd/compile: better write barrier removal when initializing new objects 2019-03-18 21:16:19 +00:00
zerodivide.go

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.