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Cherry Zhang 5b328c4a2f cmd/compile: use desired register only if it satisfies register mask 
In the register allocator, if possible, we allocate a value to its
desired register (the ideal register for its next use). In some
cases the desired register does not satisfies the value's output
register mask. We should not use the register in this case.

In the following example, v33 is going to be returned as a
function result, so it is allocated to its desired register AX.
However, its Op cannot use AX as output, causing miscompilation.

v33 = CMOVQEQF <int> v24 v28 v29 : AX (~R0[int])
v35 = MakeResult <int,int,mem> v33 v26 v18
Ret v35

Change-Id: Id0f4f27c4b233ee297e83077e3c8494fe193e664
Reviewed-on: https://go-review.googlesource.com/c/go/+/314630
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2021-04-28 16:13:40 +00:00
..
abi cmd/compile: use desired register only if it satisfies register mask 2021-04-28 16:13:40 +00:00
alias3.dir [dev.typealias] cmd/compile: export/import test cases for type aliases 2017-01-20 05:55:53 +00:00
bench all: update references to symbols moved from io/ioutil to io 2021-04-05 17:51:15 +00:00
chan [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
closure3.dir cmd/compile: set types properly for imported funcs with closures 2021-04-14 01:28:16 +00:00
closure5.dir [dev.regabi] cmd/compile: exporting, importing, and inlining functions with OCLOSURE 2021-01-20 22:53:32 +00:00
codegen cmd/compile: reduce redundant register moves for regabi calls 2021-04-19 16:21:39 +00:00
ddd2.dir all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
dwarf test: make rundir match compiledir/errorcheckdir. 2013-01-11 22:00:48 +01:00
fixedbugs cmd/compile: fix typechecking logical operators panic with non-boolean operand 2021-04-28 00:49:58 +00:00
import2.dir all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
import4.dir test: adjust gccgo expected import errors 2015-10-07 14:37:44 +00:00
interface [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
intrinsic.dir cmd/compile: intrinsics for math/bits.TrailingZerosX 2017-03-16 02:44:16 +00:00
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 cmd/gc: do not omit wrapper for expression (interface{...}).F 2014-01-07 13:26:48 +01:00
oldescape_linkname.dir cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
retjmp.dir cmd/asm: fix assembling return jump 2018-03-01 21:11:16 +00:00
runtime test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
stress all: update references to symbols moved from io/ioutil to io 2021-04-05 17:51:15 +00:00
syntax test/syntax: remove interface.go 2021-04-06 18:55:39 +00:00
typeparam cmd/compile: fix nongeneric closures in generic functions 2021-04-27 19:30:11 +00:00
uintptrescapes.dir cmd/compile, syscall: add //go:uintptrescapes comment, and use it 2016-07-06 20:48:41 +00:00
64bit.go cmd/gc: Error out on division by constant zero. 2013-01-30 20:21:08 +01:00
235.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
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.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +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
align.go test: check that unaligned load-add opcodes work. 2018-04-09 18:57:37 +00:00
append1.go [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +00:00
append.go cmd/compile: optimize append(x, make([]T, y)...) slice extension 2018-05-06 04:28:23 +00:00
args.go test: run some more tests by default 2012-11-08 09:04:27 -08:00
armimm.go cmd/internal/obj: continue to optimize ARM's constant pool 2017-05-11 13:53:54 +00:00
assign1.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
assign.go [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
atomicload.go cmd/compile: keep value use counts in SSA 2016-03-17 04:20:02 +00:00
bigalg.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
bigmap.go runtime: handle and test large map values 2012-05-24 22:41:07 -04:00
blank1.go [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
blank.go test: revert changes made for Go SSA interpreter test. 2013-10-08 14:36:20 -04:00
bom.go gc: initial BOM is legal. 2012-09-10 13:03:07 -07:00
bombad.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
bounds.go cmd/compile: defer lowering OANDNOT until SSA 2020-10-27 03:11:45 +00:00
cannotassign.go [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +00:00
chancap.go [dev.regabi] cmd/compile: remove toolstash scaffolding 2021-01-05 21:44:30 +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 cmd/compile: do not report error for invalid constant 2021-03-05 18:46:43 +00:00
char_lit.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
checkbce.go cmd/compile: fix ordering for short-circuiting ops 2019-03-06 20:04:07 +00:00
clearfat.go [dev.power64] 9g: fix under-zeroing in clearfat 2014-10-31 11:08:27 -04:00
closedchan.go test: use testlib (first 100) 2012-02-16 23:48:57 -05:00
closure1.go cmd/gc: capture variables by value 2015-01-29 13:07:30 +00:00
closure2.go [dev.regabi] test: add another closure test case 2021-01-01 13:44:37 +00:00
closure3.go cmd/compile: disable inlining functions with closures for now 2021-02-24 21:34:21 +00:00
closure4.go cmd/compile/internal/gc: add nil check for closure call on wasm 2018-08-14 09:19:38 +00:00
closure5.go [dev.regabi] cmd/compile: exporting, importing, and inlining functions with OCLOSURE 2021-01-20 22:53:32 +00:00
closure6.go [dev.regabi] cmd/compile: fix escape analysis problem with closures 2021-01-23 02:15:24 +00:00
closure7.go [dev.regabi] test: add a test for inlining closures 2021-02-01 18:28:05 +00:00
closure.go test: enforce 1 proc in the test 2012-07-01 21:59:50 +04:00
cmp6.go [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +00:00
cmp.go Fix several out of date references to 4g/5g/6g/8g/9g. 2015-06-26 03:38:21 +00:00
cmplx.go cmd/compile: rewrite f(g()) for multi-value g() during typecheck 2019-03-14 21:00:20 +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 test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
complit.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
compos.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
const1.go [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +00:00
const2.go [dev.typeparams] test: add scaffolding to run.go to check compiler with -G flag 2020-12-01 21:49:31 +00:00
const3.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
const7.go [dev.typeparams] cmd/compile: refuse excessively long constants 2021-02-03 20:22:34 +00:00
const.go cmd/compile: apply constant folding to ORUNESTR 2019-09-26 23:54:29 +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: allow conversion from slice to array ptr 2021-04-21 00:53:48 +00:00
convert3.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
convert4.go cmd/compile: allow conversion from slice to array ptr 2021-04-21 00:53:48 +00:00
convert.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
convlit1.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
convlit.go cmd/compile/internal/types2: refactor untyped conversions 2021-03-23 05:11:09 +00:00
convT2X.go cmd/gc: cache itab lookup in convT2I. 2012-07-03 09:09:05 +10:00
copy1.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
copy.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
crlf.go test: use testlib in a few more cases (part 2) 2012-04-20 23:45:43 +08:00
ddd1.go test: match gofrontend error messages 2020-11-28 02:31:54 +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 test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
declbad.go test: correct type in declbad.go 2012-10-07 21:52:57 +02:00
defer.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
defererrcheck.go test: re-enable open-coded defer test on riscv64 2020-02-26 16:54:17 +00:00
deferfin.go [dev.regabi] test: enable finalizer tests on !amd64 2021-01-05 21:11:31 +00:00
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 test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
deferprint.out test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
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 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
embedfunc.go cmd/compile: require 'go 1.16' go.mod line for //go:embed 2021-01-19 20:07:52 +00:00
embedvers.go cmd/compile: require 'go 1.16' go.mod line for //go:embed 2021-01-19 20:07:52 +00:00
empty.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
env.go os: remove Getenverror 2012-02-18 21:18:13 -08:00
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
escape2.go [dev.regabi] cmd/compile: convert OPANIC argument to interface{} during typecheck 2021-01-18 05:55:08 +00:00
escape2n.go [dev.regabi] cmd/compile: convert OPANIC argument to interface{} during typecheck 2021-01-18 05:55:08 +00:00
escape3.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
escape4.go [dev.regabi] cmd/compile: convert OPANIC argument to interface{} during typecheck 2021-01-18 05:55:08 +00:00
escape5.go cmd/compile: fix escape analysis of heap-allocated results 2021-02-27 19:01:19 +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 [dev.regabi] cmd/compile: update ir/fmt for concrete types 2020-12-17 03:50:03 +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: allow conversion from slice to array ptr 2021-04-21 00:53:48 +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 test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
fibo.go Fix whitespace (use blanks consistently). 2014-12-08 22:22:58 +00:00
finprofiled.go all: fix typos 2019-09-08 17:28:20 +00:00
float_lit2.go test/float_lit2: fix expressions in comment 2016-09-14 16:39:47 +00:00
float_lit3.go [dev.regabi] cmd/compile: enable rational constant arithmetic 2021-01-25 18:53:24 +00:00
float_lit.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
floatcmp.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
for.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
func1.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
func2.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
func3.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
func4.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
func5.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
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 test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
funcdup2.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
funcdup.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
fuse.go test: do not run fuse test in noopt mode 2021-04-28 15:55:10 +00:00
gc1.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
gc2.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
gc.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
gcgort.go test: fast GC+concurrency+types verification 2018-05-08 21:15:48 +00:00
gcstring.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
goprint.go test: adjust a test to work with js/wasm's background goroutine 2019-10-10 19:38:06 +00:00
goprint.out test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
goto.go cmd/compile: report block start for gotos jumping into blocks 2017-04-19 02:27:58 +00:00
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 test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
if.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
import1.go test: match gccgo import error messages 2013-12-12 19:02:11 -08:00
import2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
import4.go test: convert more tests to rundir/compiledir conventions 2012-10-07 23:22:01 +02:00
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 test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
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: fix typos 2019-09-08 17:28:20 +00:00
indirect1.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
indirect.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
init1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
init.go [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
initcomma.go test/initcomma.go: restore what it's supposed to be testing 2012-02-20 07:44:24 +11:00
initempty.go cmd/compile: add test for skipping empty init functions 2019-11-04 20:19:15 +00:00
initexp.go cmd/compile: fix exponential-time init-cycle reporting 2021-01-08 17:14:20 +00:00
initialize.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
initializerr.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
initloop.go [dev.typeparams] cmd/compile/internal/types2: adjusted qualified identifier error message for compiler 2020-12-09 23:56:19 +00:00
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 cmd/compile: copy literals when inlining 2017-03-03 21:29:32 +00:00
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: set types properly for imported funcs with closures 2021-04-14 01:28:16 +00:00
int_lit.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
intcvt.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
intrinsic_atomic.go test: re-enable atomic intrinsic related tests on riscv64 2020-03-25 01:11:15 +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 test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
label1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
label.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
linkmain_run.go test: avoid writing temporary files to GOROOT 2019-11-18 14:40:07 +00:00
linkmain.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
linkname2.go [dev.regabi] cmd/compile: comment out //go:linkname warning 2020-12-02 06:49:37 +00:00
linkname.go test: remove -newescape from regress tests 2019-08-28 19:27:20 +00:00
linkobj.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
linkx_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +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 test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
live1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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_regabi.go cmd/compile: reenable name preservation on copies in expand_calls 2021-04-21 14:16:01 +00:00
live_syscall.go cmd/compile: trim function name prefix from escape diagnostics 2019-09-16 15:30:51 +00:00
live.go test: add liveness test for regabi 2021-04-19 14:42:58 +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
mainsig.go [dev.regabi] cmd/compile: cleanup for concrete types - noder 2020-12-17 04:43:46 +00:00
makechan.go cmd/compile/internal/types2: add unsafe.Add and unsafe.Slice 2021-04-23 00:41:01 +00:00
makemap.go cmd/compile/internal/types2: add unsafe.Add and unsafe.Slice 2021-04-23 00:41:01 +00:00
makenew.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
makeslice.go cmd/compile: optimize make+copy pattern to avoid memclr 2020-05-07 17:50:24 +00:00
mallocfin.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
map1.go [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
map.go test/mapnan.go: add regression test for non-empty interfaces. 2014-08-06 17:02:55 -04:00
mapclear.go cmd/compile: optimize map-clearing range idiom 2018-05-08 21:15:16 +00:00
maplinear.go test: make maplinear more robust 2014-10-27 18:59:02 -04:00
mergemul.go cmd/compile: combine x*n - y*n into (x-y)*n 2017-09-03 14:29:38 +00:00
method1.go cmd/compile: ignore receiver parameters in Eqtype 2016-03-17 00:38:15 +00:00
method2.go [dev.typeparams] merge: merge branch 'dev.regabi' into 'dev.typeparams' 2020-12-14 12:13:36 -08:00
method3.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
method4.go test: convert more tests to rundir/compiledir conventions 2012-10-07 23:22:01 +02:00
method5.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
method6.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
method7.go [dev.typeparams] cmd/compile: fix MethodExpr handling with embedded fields 2021-01-26 17:05:06 +00:00
method.go test: a number of fixes. 2013-02-11 18:20:52 -05:00
named1.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
named.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nil.go test: ensure all failing tests exit nonzero. 2013-02-12 13:17:49 -05:00
nilcheck.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
nilptr2.go test: use a real use function in nilptr2.go 2019-05-11 03:02:33 +00:00
nilptr3.go [dev.regabi] cmd/compile: deref PAUTOHEAPs during SSA construction 2021-01-10 08:01:49 +00:00
nilptr4.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 test: disable nilptr on windows/arm64 2021-02-19 00:40:22 +00:00
nosplit.go test: make nosplit test invariant to ABI wrappers 2021-03-18 16:51:25 +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 cmd/compile/internal/gc: enable new parser by default 2016-10-25 22:28:40 +00:00
opt_branchlikely.go all: fix typos 2019-09-08 17:28:20 +00:00
parentype.go test/[n-r]*.go: add documentation 2012-02-24 10:30:39 +11:00
peano.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
phiopt.go cmd/compile/internal/ssa: strengthen phiopt pass 2021-03-29 05:50:11 +00:00
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 test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
prove.go docs: fix spelling 2021-02-24 04:11:43 +00:00
range.go cmd/compile: improve single blank variable handling in walkrange 2017-09-12 05:50:54 +00:00
README.md test: document specifying individual test files as operands 2020-08-28 21:23:32 +00:00
recover1.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
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 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
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
reflectmethod7.go cmd/compile: mark concrete call of reflect.(*rtype).Method as REFLECTMETHOD 2021-02-10 22:44:54 +00:00
rename1.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +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 [dev.regabi] cmd/compile: cleanup OAS2FUNC ordering 2021-01-16 23:19:26 +00:00
retjmp.go cmd/asm: fix assembling return jump 2018-03-01 21:11:16 +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/go, go/build: add ToolTags to build.Default 2021-04-16 19:21:48 +00:00
rune.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
runtime.go [dev.typeparams] cmd/compile/internal/types2: adjusted qualified identifier error message for compiler 2020-12-09 23:56:19 +00:00
shift1.go test: recognize gofrontend error messages 2020-11-30 20:08:34 +00:00
shift2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
sieve.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
sigchld.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
sigchld.out test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
simassign.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
sinit_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
sinit.go cmd/compile: fix static initializer 2018-12-03 16:48:21 +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 [dev.typeparams] test: finish triaging all outstanding failing tests 2020-12-14 21:28:48 +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: make prove pass use unsatisfiability 2018-03-08 22:25:25 +00:00
solitaire.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
stack.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
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 test: add []rune case to string_lit.go 2013-12-12 17:17:02 -08:00
stringrange.go all: make Unicode surrogate halves illegal as UTF-8 2012-08-08 14:01:23 -07:00
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 [dev.typeparams] cmd/compile/internal/types2: report error for invalid (but empty) expr switch 2020-12-15 19:43:32 +00:00
switch4.go cmd/gc: disallow fallthrough in final case of switch 2013-03-15 00:35:09 -04:00
switch5.go [dev.typeparams] test: finish triaging all outstanding failing tests 2020-12-14 21:28:48 +00:00
switch6.go [dev.typeparams] test: finish triaging all outstanding failing tests 2020-12-14 21:28:48 +00:00
switch7.go [dev.typeparams] test: finish triaging all outstanding failing tests 2020-12-14 21:28:48 +00:00
switch.go cmd/gc: disallow fallthrough in final case of switch 2013-03-15 00:35:09 -04:00
tinyfin.go runtime: fix finalization and profiling of tiny allocations 2015-11-03 18:57:18 +00:00
torture.go cmd/8g: don't allocate a register early for cap(CHAN). 2014-07-01 09:20:51 +02:00
turing.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
typecheck.go test: add copyright notice to typecheck.go 2020-04-17 13:30:49 +00:00
typecheckloop.go [dev.typeparams] cmd/compile/internal/types2: adjust init cycle error message for compiler 2020-12-09 23:55:41 +00:00
typeswitch1.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
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 [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
typeswitch.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
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 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
used.go [dev.typeparams] all: merge dev.regabi (07569da) into dev.typeparams 2020-12-28 00:39:17 -08:00
utf.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
varerr.go [dev.typeparams] test: enable some more errorcheck tests 2020-12-04 21:22:23 +00:00
varinit.go test/[n-z]*.go: add documentation 2012-02-24 11:48:19 +11:00
winbatch.go all: update to use filepath.WalkDir instead of filepath.Walk 2020-12-02 16:33:57 +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 test: lock in test for _ assignment evaluation/zerodivide panic 2016-12-23 17:35:24 +00:00

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.