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Keith Randall 3c1722cf30 [release-branch.go1.13] reflect: zero stack slots before writing to them with write barriers 
reflect.assignTo writes to the target using write barriers. Make sure
that the memory it is writing to is zeroed, so the write barrier does
not read pointers from uninitialized memory.

Fixes #39697

Change-Id: Ia64b2cacc193bffd0c1396bbce1dfb8182d4905b
Reviewed-on: https://go-review.googlesource.com/c/go/+/238760
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 3dec253783)
Reviewed-on: https://go-review.googlesource.com/c/go/+/238862
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
 		2020-07-11 02:49:54 +00:00
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alias3.dir
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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 Revert "Revert "cmd/compile,runtime: allocate defer records on the stack"" 2019-06-10 16:19:39 +00:00
ddd2.dir
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dwarf
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fixedbugs [release-branch.go1.13] reflect: zero stack slots before writing to them with write barriers 2020-07-11 02:49:54 +00:00
import2.dir
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import4.dir
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interface
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intrinsic.dir
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ken test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
linkname.dir cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
method4.dir
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oldescape_linkname.dir cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
retjmp.dir
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runtime cmd/compile: shortcut intrinsic inlining AFTER getcallerXX check 2019-04-19 20:18:29 +00:00
stress
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syntax cmd/compile: better handling of incorrect type switches 2018-04-03 05:34:20 +00:00
uintptrescapes.dir
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64bit.go
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235.go
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README.md
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alg.go test: add test that required algs get generated 2016-04-24 21:36:52 +00:00
alias.go
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alias1.go
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alias2.go cmd/compile: cleanup method symbol creation 2018-04-05 22:01:17 +00:00
alias3.go
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align.go
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append.go
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append1.go
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args.go
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armimm.go
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assign.go
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assign1.go
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atomicload.go
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bigalg.go
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bigmap.go
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blank.go
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blank1.go test: update blank1.go for changed gofrontend error messages 2019-06-23 22:20:39 +00:00
bom.go
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bombad.go
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bounds.go
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chancap.go runtime: handle 64bits addresses for AIX 2018-11-26 14:06:28 +00:00
chanlinear.go
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char_lit.go
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char_lit1.go
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checkbce.go cmd/compile: fix ordering for short-circuiting ops 2019-03-06 20:04:07 +00:00
clearfat.go
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closedchan.go
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closure.go
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closure1.go
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closure2.go
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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
cmp.go
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cmp6.go
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cmplx.go cmd/compile: rewrite f(g()) for multi-value g() during typecheck 2019-03-14 21:00:20 +00:00
cmplxdivide.c
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cmplxdivide.go
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cmplxdivide1.go
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complit.go
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complit1.go
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compos.go
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const.go cmd/compile: fix compiler bug for constant equality comparison 2016-09-17 01:12:24 +00:00
const1.go cmd/compile: fix ICE from invalid operations on float/complex constants 2019-03-28 17:46:55 +00:00
const2.go
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const3.go test: [a-c]: add introductory comments to tests 2012-02-19 13:19:43 +11:00
const4.go
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const5.go
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const6.go
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convT2X.go
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convert.go
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convert1.go
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convert2.go
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convert3.go
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convlit.go
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convlit1.go
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copy.go
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copy1.go cmd/compile: rewrite f(g()) for multi-value g() during typecheck 2019-03-14 21:00:20 +00:00
crlf.go
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ddd.go
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ddd1.go
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ddd2.go
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decl.go
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declbad.go
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defer.go
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deferfin.go
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deferprint.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
deferprint.out
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devirt.go cmd/compile: de-virtualize interface calls 2017-03-14 18:49:23 +00:00
divide.go
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divmod.go
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empty.go
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env.go
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eof.go
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eof1.go
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escape.go
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escape2.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape2n.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape3.go
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escape4.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape5.go test: add regress test for issue 28369 2019-04-16 21:01:30 +00:00
escape_array.go cmd/compile: trim more unnecessary escape analysis messages 2019-04-02 18:00:32 +00:00
escape_because.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape_calls.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape_closure.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape_field.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape_iface.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
escape_indir.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_level.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_map.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_param.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +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: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_struct_param2.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
escape_struct_return.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +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 test: add regress tests for unsafe.Pointer rules 2019-04-03 16:03:55 +00:00
fibo.go
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finprofiled.go
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float_lit.go
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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
floatcmp.go
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for.go
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func.go
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func1.go
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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
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func5.go
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func6.go
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func7.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
func8.go
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funcdup.go
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funcdup2.go
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gc.go
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gc1.go
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gc2.go
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gcgort.go
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gcstring.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
goprint.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
goprint.out
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goto.go
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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
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if.go
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import.go
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import1.go
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import2.go
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import4.go
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import5.go
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import6.go
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index.go
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index0.go
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index1.go
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index2.go
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indirect.go
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indirect1.go
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init.go cmd/compile: reorganize init functions 2019-03-18 20:10:55 +00:00
init1.go
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initcomma.go test/initcomma.go: restore what it's supposed to be testing 2012-02-20 07:44:24 +11:00
initialize.go
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initializerr.go
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initloop.go
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inline.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
inline_big.go cmd/compile: set stricter inlining threshold in large functions 2018-07-24 16:11:08 +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
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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
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int_lit.go
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intcvt.go
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intrinsic.go
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intrinsic_atomic.go
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iota.go
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label.go
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label1.go
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linkmain.go
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linkmain_run.go
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linkname.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
linkobj.go all: skip unsupported tests for js/wasm 2018-04-30 19:39:18 +00:00
linkx.go
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linkx_run.go
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literal.go
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literal2.go cmd/compile: accept 'i' suffix orthogonally on all numbers 2019-02-19 22:45:09 +00:00
live.go Revert "Revert "cmd/compile,runtime: allocate defer records on the stack"" 2019-06-10 16:19:39 +00:00
live1.go
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live2.go cmd/compile,runtime: remove ambiguously live logic 2018-10-03 19:54:16 +00:00
live_syscall.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
locklinear.go test: skip locklinear's lockmany test for now 2018-04-05 10:53:40 +00:00
loopbce.go cmd/compile: reverse order of slice bounds checks 2019-03-09 00:52:45 +00:00
makechan.go
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makemap.go
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makenew.go
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mallocfin.go test: commentary for [h-m]*.go 2012-02-23 18:47:26 +11:00
map.go test/mapnan.go: add regression test for non-empty interfaces. 2014-08-06 17:02:55 -04:00
map1.go
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mapclear.go
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maplinear.go
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mergemul.go
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method.go
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method1.go
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method2.go
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method3.go
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method4.go
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method5.go
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method6.go
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method7.go
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named.go
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named1.go
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nil.go
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nilcheck.go
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nilptr.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +00:00
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
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nilptr5.go cmd/compile: fix nilcheck for AIX 2018-11-26 14:13:53 +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
nilptr_aix.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
notinheap.go cmd/compile: disallow converting string to notinheap slice 2018-11-02 19:53:59 +00:00
notinheap2.go
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notinheap3.go cmd/compile: omit write barriers for slice clears of go:notinheap pointers 2018-12-05 21:54:54 +00:00
nowritebarrier.go
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nul1.go
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oldescape2.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape2n.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape5.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_calls.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_closure.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_field.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_iface.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_linkname.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_param.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
oldescape_struct_return.go cmd/compile: update escape analysis tests for newescape 2019-04-16 16:20:39 +00:00
opt_branchlikely.go
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parentype.go
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peano.go
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phiopt.go
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print.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
print.out
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printbig.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
printbig.out
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prove.go [release-branch.go1.13] cmd/compile: make poset use sufficient conditions for OrderedOrEqual 2019-10-14 19:21:36 +00:00
range.go cmd/compile: improve single blank variable handling in walkrange 2017-09-12 05:50:54 +00:00
recover.go
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recover1.go
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recover2.go
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recover3.go
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recover4.go
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recover5.go
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reflectmethod1.go
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reflectmethod2.go
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reflectmethod3.go
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reflectmethod4.go
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rename.go
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rename1.go
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reorder.go
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reorder2.go
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retjmp.go
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return.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
rotate.go
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rotate0.go
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rotate1.go
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rotate2.go
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rotate3.go
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run.go test/fixedbugs: fix some tests will not be run 2019-05-23 01:39:41 +00:00
rune.go
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runtime.go
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shift1.go cmd/compile: permit indices of certain non-constant shifts 2017-12-01 20:39:50 +00:00
shift2.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
sieve.go
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sigchld.go test: remove rundircmpout and cmpout actions 2018-05-31 17:36:45 +00:00
sigchld.out
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simassign.go
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sinit.go cmd/compile: fix static initializer 2018-12-03 16:48:21 +00:00
sinit_run.go
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sizeof.go
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slice3.go
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slice3err.go all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
slicecap.go
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sliceopt.go
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solitaire.go
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stack.go
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stackobj.go cmd/compile,runtime: remove ambiguously live logic 2018-10-03 19:54:16 +00:00
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
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
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string_lit.go
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stringrange.go
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struct0.go
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switch.go cmd/gc: disallow fallthrough in final case of switch 2013-03-15 00:35:09 -04:00
switch2.go cmd/compile/internal/syntax: match old parser errors and line numbers 2016-08-19 01:10:21 +00:00
switch3.go cmd/gc: accept switches on comparable arrays. 2012-08-03 21:47:26 +02:00
switch4.go
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switch5.go Revert "fmt: fix incorrect format of whole-number floats when using %#v" 2018-10-16 21:54:35 +00:00
switch6.go
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switch7.go
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tinyfin.go
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torture.go
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turing.go
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typecheck.go
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typecheckloop.go
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typeswitch.go
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typeswitch1.go
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typeswitch2.go test: fix spelling of `caught be the compiler` to `caught by the compiler` 2018-10-04 00:49:49 +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
uintptrescapes.go
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uintptrescapes2.go cmd/compile: skip escape analysis diagnostics for OADDR 2019-04-02 16:34:03 +00:00
undef.go
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utf.go
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varerr.go
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varinit.go
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writebarrier.go cmd/compile: better write barrier removal when initializing new objects 2019-03-18 21:16:19 +00:00
zerodivide.go
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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.