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Than McIntosh d4ee0255f2 [release-branch.go1.16] cmd/compile: make map.zero symbol content-addressable 
The compiler machinery that generates "map.zero" symbols marks them as
RODATA and DUPOK, which is problematic when a given application has
multiple map zero symbols (from different packages) with varying
sizes: the dupok path in the loader assumes that if two symbols have
the same name, it is safe to pick any of the versions. In the case of
map.zero, the link needs to select the largest symbol, not an
arbitrary sym.

To fix this problem, mark map.zero symbols as content-addressable,
since the loader's content addressability processing path already
supports selection of the larger symbol in cases where there are dups.

Fixes #46657.

Change-Id: Iabd2feef01d448670ba795c7eaddc48c191ea276
Reviewed-on: https://go-review.googlesource.com/c/go/+/326211
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
(cherry picked from commit aa5540cd82)
Reviewed-on: https://go-review.googlesource.com/c/go/+/326212
Run-TryBot: Cherry Mui <cherryyz@google.com>
 		2021-06-29 17:38:08 +00:00
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alias3.dir
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bench
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chan test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
closure3.dir cmd/compile: allow inlining of "for" loops 2020-10-15 18:26:33 +00:00
codegen [release-branch.go1.16] cmd/compile: fix long RMW bit operations on AMD64 2021-03-31 17:15:59 +00:00
ddd2.dir
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dwarf
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fixedbugs [release-branch.go1.16] cmd/compile: make map.zero symbol content-addressable 2021-06-29 17:38:08 +00:00
import2.dir
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import4.dir
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interface test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
intrinsic.dir
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ken
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linkname.dir
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method4.dir
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oldescape_linkname.dir
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retjmp.dir
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runtime
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stress
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syntax test: match gofrontend error messages 2020-12-02 02:56:41 +00:00
uintptrescapes.dir
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64bit.go
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235.go
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README.md test: document specifying individual test files as operands 2020-08-28 21:23:32 +00:00
alg.go
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alias.go
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alias1.go
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alias2.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +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 test: match gccgo error messages 2020-12-03 16:28:44 +00:00
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: match gofrontend error messages 2020-11-28 02:31:54 +00:00
bom.go
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bombad.go
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bounds.go cmd/compile: defer lowering OANDNOT until SSA 2020-10-27 03:11:45 +00:00
cannotassign.go cmd/compile: be more specific in cannot assign errors 2020-09-16 20:04:58 +00:00
chancap.go
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chanlinear.go test, test/fixedbugs, crypto/x509, go/internal/gccgoimporter: fix typos 2020-03-29 17:12:56 +00:00
char_lit.go
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char_lit1.go
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checkbce.go
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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
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closure4.go
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cmp.go
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cmp6.go
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cmplx.go
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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 test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
compos.go
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const.go
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const1.go
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const2.go
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const3.go
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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 test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
convlit1.go
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copy.go
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copy1.go
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crlf.go
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ddd.go
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ddd1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
ddd2.go
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decl.go
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declbad.go
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defer.go
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defererrcheck.go test: re-enable open-coded defer test on riscv64 2020-02-26 16:54:17 +00:00
deferfin.go
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defernil.go
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deferprint.go
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deferprint.out
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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
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divmod.go
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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
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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: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape2n.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape3.go
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escape4.go
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escape5.go [release-branch.go1.16] cmd/compile: fix escape analysis of heap-allocated results 2021-03-01 22:02:31 +00:00
escape_array.go
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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
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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
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escape_map.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_param.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +00:00
escape_runtime_atomic.go
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escape_selfassign.go
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escape_slice.go cmd/compile: use clearer error message for stuct literal 2020-09-12 08:31:49 +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
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escape_sync_atomic.go
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escape_unsafe.go
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fibo.go
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finprofiled.go
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float_lit.go
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float_lit2.go
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float_lit3.go
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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
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func3.go
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func4.go
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func5.go
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func6.go
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func7.go
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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
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goprint.go
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goprint.out
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goto.go
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heapsampling.go
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helloworld.go
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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 test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
init1.go
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initcomma.go
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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
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initializerr.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
initloop.go
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inline.go cmd/compile: support inlining of type switches 2020-11-06 20:49:11 +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
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inline_callers.go
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inline_literal.go
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inline_math_bits_rotate.go
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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
int_lit.go
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intcvt.go
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intrinsic.go
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intrinsic_atomic.go test: re-enable atomic intrinsic related tests on riscv64 2020-03-25 01:11:15 +00:00
iota.go
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label.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
label1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
linkmain.go
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linkmain_run.go test: avoid writing temporary files to GOROOT 2019-11-18 14:40:07 +00:00
linkname.go
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linkobj.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
linkx_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
literal.go
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literal2.go
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live.go cmd/compile,cmd/link: fix and re-enable open-coded defers on riscv64 2020-01-29 16:34:44 +00:00
live1.go
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live2.go
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live_syscall.go
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locklinear.go
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loopbce.go
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makechan.go test: remove duplicate code from makechan/makemap 2020-04-19 07:51:23 +00:00
makemap.go test: remove duplicate code from makechan/makemap 2020-04-19 07:51:23 +00:00
makenew.go
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makeslice.go cmd/compile: optimize make+copy pattern to avoid memclr 2020-05-07 17:50:24 +00:00
mallocfin.go
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map.go
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map1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
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 test: match gccgo error messages 2020-12-03 16:28:44 +00:00
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/dist: enable more tests on macOS/ARM64 2020-10-06 21:55:49 +00:00
nilptr2.go
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nilptr3.go
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nilptr4.go
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nilptr5.go
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nilptr5_aix.go
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nilptr5_wasm.go
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nilptr_aix.go
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nosplit.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
notinheap.go cmd/compile: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
notinheap2.go cmd/compile: propagate go:notinheap implicitly 2020-09-17 19:35:53 +00:00
notinheap3.go
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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
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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
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print.out
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printbig.go
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printbig.out
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prove.go cmd/compile: check indirect connection between if block and phi block in addLocalInductiveFacts 2020-11-07 07:33:23 +00:00
range.go
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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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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
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
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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: fix timeout code for invoking compiler 2021-01-08 17:14:00 +00:00
rune.go
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runtime.go cmd/compile: report error for unexported name only once 2020-08-25 16:06:36 +00:00
shift1.go test: recognize gofrontend error messages 2020-11-30 20:08:34 +00:00
shift2.go
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sieve.go
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sigchld.go
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sigchld.out
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simassign.go
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sinit.go
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sinit_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
sizeof.go
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slice3.go
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slice3err.go
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slicecap.go
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sliceopt.go
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solitaire.go
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stack.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 test: add copyright notice to typecheck.go 2020-04-17 13:30:49 +00:00
typecheckloop.go
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typeswitch.go
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typeswitch1.go
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typeswitch2.go
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typeswitch2b.go
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typeswitch3.go
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uintptrescapes.go
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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
undef.go
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utf.go
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varerr.go
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varinit.go
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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
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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

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.