go/test at b3cbe6a12213afdcd730325202353bf3d8b77a57 - go

dox4/go

mirror of https://github.com/golang/go.git synced 2026-08-02 20:44:20 +08:00

History

Bob Put 61d964eff9 cmd/compile: fold constant bits reverse operations

The compiler already folds several math/bits intrinsics with constant inputs. Add generic SSA folds for constant Reverse, ReverseBytes, and their narrower forms after they lower to BitRev and Bswap ops.

This removes residual reverse instructions for constant arguments while leaving target-specific lowering unchanged for variable arguments.

For #21872.

Change-Id: I16d8192e9b900a8ded75cb51f411382e9c987880
Reviewed-on: https://go-review.googlesource.com/c/go/+/782462
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

2026-07-15 08:12:16 -07:00

abi

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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: simplify closure name

2026-05-07 14:46:33 -07:00

closure5.dir

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codegen

cmd/compile: fold constant bits reverse operations

2026-07-15 08:12:16 -07:00

ddd2.dir

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dwarf

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fixedbugs

runtime: be sure to scan small frame introduced by (*sigctxt).pushCall

2026-07-13 14:06:37 -07:00

import2.dir

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import4.dir

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interface

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internal/runtime/sys

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intrinsic.dir

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ken

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linkname.dir

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linknameasm.dir

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method4.dir

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retjmp.dir

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simd

[dev.simd] simd, cmd/compile: rename loads and stores

2026-05-08 09:33:15 -07:00

stress

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syntax

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typeparam

cmd/compile: eliminate impossible type assertions in generic functions

2026-04-28 11:19:35 -07:00

uintptrescapes.dir

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wasmmemsize.dir

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64bit.go

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235.go

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alg.go

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alias1.go

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alias2.go

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alias3.go

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alias.go

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align.go

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append1.go

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append.go

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args.go

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armimm.go

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asmhdr.go

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assign1.go

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assign.go

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atomicload.go

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bigalg.go

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bigmap.go

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blank1.go

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blank.go

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bloop.go

cmd/compile: keep blank nodes alive in b.loop

2026-03-13 09:03:37 -07:00

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

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char_lit1.go

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char_lit.go

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checkbce.go

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clear.go

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clearfat.go

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closedchan.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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closure5.go

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closure6.go

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closure7.go

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closure.go

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cmp6.go

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cmp.go

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cmplx.go

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cmplxdivide1.go

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cmplxdivide.c

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cmplxdivide.go

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complit1.go

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complit2.go

cmd/compile: compute embedded field offset in static initialization

2026-05-20 19:19:04 -07:00

complit.go

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compos.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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const.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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convert5.go

test/convert5: skip mipsle

2026-02-10 09:15:43 -08:00

convert5.out

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convert.go

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convinline.go

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convlit1.go

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convlit.go

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convT2X.go

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copy1.go

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copy.go

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crlf.go

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ddd1.go

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ddd2.go

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ddd.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

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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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devirtualization_nil_panics.go

all: fix a lot of spelling mistakes

2026-05-01 13:52:37 -07:00

devirtualization_with_type_assertions_interleaved.go

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devirtualization.go

cmd/compile/internal/devirtualize: use pointer identity for type comparison

2026-03-30 07:27:52 -07:00

directive2.go

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directive.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

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env.go

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eof1.go

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eof.go

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escape2.go

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escape2n.go

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escape3.go

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escape4.go

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escape5.go

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escape6.go

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escape_alias.go

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escape_array.go

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escape_bloop.go

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escape_calls.go

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escape_closure.go

cmd/compile: handle multiply-assigned func vars in escape analysis

2026-05-20 09:48:01 -07:00

escape_field.go

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escape_goto.go

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escape_hash_maphash.go

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escape_iface_data.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_make_non_const.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

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escape_runtime_atomic.go

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escape_selfassign.go

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escape_slice.go

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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_unique.go

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escape_unsafe.go

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escape.go

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fibo.go

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finprofiled.go

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float_lit2.go

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float_lit3.go

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float_lit.go

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floatcmp.go

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for.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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func.go

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funcdup2.go

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funcdup.go

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fuse.go

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gc1.go

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gc2.go

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gc.go

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gcgort.go

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gcstring.go

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genmeth1.go

internal/goexperiment: delete Flags.GenericMethods

2026-06-15 08:21:30 -07:00

genmeth2.go

internal/goexperiment: delete Flags.GenericMethods

2026-06-15 08:21:30 -07:00

genmeth.go

internal/goexperiment: delete Flags.GenericMethods

2026-06-15 08:21:30 -07:00

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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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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import.go

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index0.go

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index1.go

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index2.go

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index.go

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indirect1.go

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indirect.go

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init1.go

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init.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_big.go

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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

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inline_sync.go

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inline_variadic.go

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inline.go

cmd/compile: simplify closure name

2026-05-07 14:46:33 -07:00

int_lit.go

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intcvt.go

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intrinsic_atomic.go

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intrinsic.go

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iota.go

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known_bits.go

cmd/compile: add Trunc support to known bits

2026-04-23 08:23:47 -07:00

label1.go

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label.go

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linkmain_run.go

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linkmain.go

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linkname3.go

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linkname.go

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linknameasm.go

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linkobj.go

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linkx_run.go

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linkx.go

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literal2.go

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literal.go

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live1.go

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live2.go

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live_regabi.go

runtime: consolidate tiny sizespecializedmalloc functions

2026-05-11 14:06:40 -07:00

live_uintptrkeepalive.go

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live.go

runtime: consolidate tiny sizespecializedmalloc functions

2026-05-11 14:06:40 -07:00

loopbce.go

cmd/compile: fix loopbce overflow check logic

2026-04-08 05:23:56 -07:00

mainsig.go

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makechan.go

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makemap.go

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makenew.go

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makeslice.go

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mallocfin.go

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map1.go

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map.go

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mapclear.go

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maplinear.go

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maymorestack.go

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mergemul.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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method.go

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named1.go

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named.go

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newexpr.go

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newinline.go

test: update newinline.go for closure name change

2026-05-08 11:30:24 -07:00

nil.go

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nilcheck.go

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nilptr2.go

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nilptr3.go

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nilptr4.go

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nilptr5_aix.go

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nilptr5_wasm.go

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nilptr5.go

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nilptr_aix.go

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nilptr.go

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noinit.go

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nosplit.go

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nowritebarrier.go

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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_constant_folding.go

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prove_invert_loop_with_unused_iterators.go

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prove_popcount.go

all: fix a lot of spelling mistakes

2026-05-01 13:52:37 -07:00

prove.go

cmd/compile/internal/ssa: prove support induction variable pair

2026-03-27 06:29:34 -07:00

range2.go

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range3.go

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range4.go

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range.go

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rangegen.go

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README.md

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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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recover.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

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reflectmethod6.go

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reflectmethod7.go

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reflectmethod8.go

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rename1.go

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rename.go

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reorder2.go

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reorder.go

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retjmp.go

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return.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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rotate.go

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rune.go

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runtime.go

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shift1.go

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shift2.go

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shift3.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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simd_inline.go

[dev.simd] simd: improve arm64 and amd64 rotateAll

2026-05-29 12:30:10 -07:00

simd.go

test: repair expected-error regexp in simd.go

2026-03-24 21:34:05 -07:00

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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stackobj2.go

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stackobj3.go

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stackobj.go

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strcopy.go

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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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switch2.go

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switch3.go

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switch4.go

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switch5.go

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switch.go

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tailcall.go

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tighten.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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typeswitch1.go

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typeswitch2.go

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typeswitch2b.go

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typeswitch3.go

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typeswitch.go

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uintptrescapes2.go

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uintptrescapes3.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_data.go

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unsafe_string.go

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unsafebuiltins.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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wasmexport2.go

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wasmexport.go

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wasmmemsize.go

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weak.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.