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khr@golang.org 3b96eebcbd cmd/compile: rewrite the constant parts of the prove pass 
Handles a lot more cases where constant ranges can eliminate
various (mostly bounds failure) paths.

Fixes #66826
Fixes #66692
Fixes #48213
Update #57959

TODO: remove constant logic from poset code, no longer needed.

Change-Id: Id196436fcd8a0c84c7d59c04f93bd92e26a0fd7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/599096
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
 		2024-08-07 16:07:33 +00:00
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abi test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
alias3.dir
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arenas
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asmhdr.dir
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chan
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closure3.dir cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
closure5.dir
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codegen cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
ddd2.dir
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dwarf
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fixedbugs test: add test that caused gofrontend to crash 2024-08-05 19:40:55 +00:00
import2.dir
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import4.dir
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interface
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intrinsic.dir runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
ken
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linkname.dir
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linknameasm.dir cmd/compile: generate args_stackmap for ABI0 assembly func regardless of linkname 2024-06-07 15:22:22 +00:00
method4.dir
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retjmp.dir
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runtime
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stress test/stress: fix typo in comment 2024-03-25 19:21:35 +00:00
syntax
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typeparam cmd/compile: export/import materialized aliases 2024-04-05 16:29:58 +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
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alias.go
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alias1.go
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alias2.go cmd/compile/internal/noder: enable type aliases in type checker 2024-05-15 15:09:14 +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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asmhdr.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
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bom.go
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bombad.go
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bounds.go
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cannotassign.go
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chancap.go
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chanlinear.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
char_lit.go
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char_lit1.go
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checkbce.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
clear.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 test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
closure4.go
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closure5.go
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closure6.go
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closure7.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
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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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const7.go
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const8.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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convert4.go
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convinline.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
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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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defererrcheck.go test: add open-coded defer tests for too many exits path 2024-07-29 14:30:07 +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
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directive.go
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directive2.go
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divide.go
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divmod.go
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embedfunc.go
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embedvers.go
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empty.go test: explanatory comments [c-g]* 2012-02-19 14:28:53 +11:00
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 all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
escape2n.go all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
escape3.go
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escape4.go cmd/compile: retire "IsHiddenClosure" and "IsDeadcodeClosure" 2024-07-22 21:27:37 +00:00
escape5.go cmd/compile/internal/noder: stop preserving original const strings 2023-09-08 18:50:24 +00:00
escape_array.go
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escape_calls.go cmd/compile: fix escape analysis of string min/max 2023-12-05 22:06:07 +00:00
escape_closure.go cmd/compile: retire "IsHiddenClosure" and "IsDeadcodeClosure" 2024-07-22 21:27:37 +00:00
escape_field.go
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escape_goto.go
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escape_hash_maphash.go
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escape_iface.go
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escape_indir.go
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escape_level.go
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escape_map.go
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escape_mutations.go
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escape_param.go
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escape_reflect.go cmd/compile/internal/noder: stop preserving original const strings 2023-09-08 18:50:24 +00:00
escape_runtime_atomic.go runtime: migrate internal/atomic to internal/runtime 2024-03-25 19:53:03 +00:00
escape_selfassign.go
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escape_slice.go cmd/compile/internal/noder: stop preserving original const strings 2023-09-08 18:50:24 +00:00
escape_struct_param1.go
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escape_struct_param2.go
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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 test: ignore MemProfileRecords with no live objects in finprofiled.go 2023-11-16 05:48:00 +00:00
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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fuse.go cmd/compile: improve integer comparisons with numeric bounds 2024-01-23 00:02:36 +00:00
gc.go
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gc1.go
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gc2.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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
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init1.go
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initcomma.go
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initexp.go
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initialize.go
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initializerr.go
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initloop.go
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inline.go cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
inline_big.go cmd/compile: restore zero-copy string->[]byte optimization 2023-08-18 11:58:37 +00:00
inline_caller.go
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inline_callers.go
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inline_endian.go
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inline_literal.go
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inline_math_bits_rotate.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
inline_sync.go sync: use atomic.Uint32 in Once 2023-10-06 21:01:50 +00:00
inline_variadic.go
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int_lit.go
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intcvt.go
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intrinsic.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
intrinsic_atomic.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
iota.go
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label.go
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label1.go
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linkmain.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkmain_run.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkname.go
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linkname3.go cmd/compile: disallow linkname referring to instantiations 2024-05-15 19:27:25 +00:00
linknameasm.go cmd/compile: generate args_stackmap for ABI0 assembly func regardless of linkname 2024-06-07 15:22:22 +00:00
linkobj.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
linkx.go
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linkx_run.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
literal.go
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literal2.go
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live.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live1.go
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live2.go cmd/compile/internal/reflectdata: share hmap and hiter types 2023-08-21 23:29:33 +00:00
live_noswiss.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live_regabi.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live_regabi_noswiss.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live_regabi_swiss.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live_swiss.go cmd/compile,runtime: disable swissmap fast variants 2024-08-02 16:47:38 +00:00
live_uintptrkeepalive.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
loopbce.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
mainsig.go
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makechan.go all: fix some comments 2024-04-04 14:29:45 +00:00
makemap.go
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makenew.go
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makeslice.go
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mallocfin.go
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map.go
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map1.go
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mapclear.go
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maplinear.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
maymorestack.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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newinline.go cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
nil.go
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nilcheck.go
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nilptr.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr2.go
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nilptr3.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr4.go
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nilptr5.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr5_aix.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr5_wasm.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nilptr_aix.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
noinit.go
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nosplit.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
nowritebarrier.go cmd/compile: redo IsRuntimePkg/IsReflectPkg predicate 2023-08-22 19:18:21 +00:00
nul1.go
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opt_branchlikely.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
parentype.go
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peano.go
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phiopt.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
prove_constant_folding.go cmd/compile: rewrite the constant parts of the prove pass 2024-08-07 16:07:33 +00:00
prove_invert_loop_with_unused_iterators.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
range.go
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range2.go all: rename GOEXPERIMENT=range to rangefunc 2023-11-08 15:32:14 +00:00
range3.go cmd/compile: fix typecheck range over rune literal 2023-12-01 17:20:08 +00:00
range4.go cmd/compile: handle defined iter func type correctly 2024-01-08 16:00:53 +00:00
rangegen.go test: skip rangegen.go on 32-bit platforms 2023-12-18 23:35:19 +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 test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
recover5.go
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reflectmethod1.go
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reflectmethod2.go
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rename.go
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runtime.go
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sieve.go
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sigchld.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
sigchld.out
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simassign.go
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sizeof.go
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slice3.go
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uintptrescapes.go
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uintptrkeepalive.go
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undef.go
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unsafe_slice_data.go
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unsafe_string.go
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used.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
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writebarrier.go
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zerodivide.go
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zerosize.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 test cmd/internal/testdir

To run just tests from specified files in this directory, execute:

../bin/go test cmd/internal/testdir -run='Test/(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.