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Xiaolin Zhao ff14e08cd3 cmd/compile, math: improve implementation of math.{Max,Min} on loong64 
Make math.{Min,Max} intrinsics and implement math.{archMax,archMin}
in hardware.

goos: linux
goarch: loong64
pkg: math
cpu: Loongson-3A6000 @ 2500.00MHz
         │  old.bench   │              new.bench              │
         │    sec/op    │   sec/op     vs base                │
Max         7.606n ± 0%   3.087n ± 0%  -59.41% (p=0.000 n=20)
Min         7.205n ± 0%   2.904n ± 0%  -59.69% (p=0.000 n=20)
MinFloat   37.220n ± 0%   4.802n ± 0%  -87.10% (p=0.000 n=20)
MaxFloat   33.620n ± 0%   4.802n ± 0%  -85.72% (p=0.000 n=20)
geomean     16.18n        3.792n       -76.57%

goos: linux
goarch: loong64
pkg: runtime
cpu: Loongson-3A5000 @ 2500.00MHz
         │  old.bench   │              new.bench              │
         │    sec/op    │   sec/op     vs base                │
Max        10.010n ± 0%   7.196n ± 0%  -28.11% (p=0.000 n=20)
Min         8.806n ± 0%   7.155n ± 0%  -18.75% (p=0.000 n=20)
MinFloat   60.010n ± 0%   7.976n ± 0%  -86.71% (p=0.000 n=20)
MaxFloat   56.410n ± 0%   7.980n ± 0%  -85.85% (p=0.000 n=20)
geomean     23.37n        7.566n       -67.63%

Updates #59120.

Change-Id: I6815d20bc304af3cbf5d6ca8fe0ca1c2ddebea2d
Reviewed-on: https://go-review.googlesource.com/c/go/+/580283
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
 		2024-08-07 01:16:28 +00:00
..
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, math: improve implementation of math.{Max,Min} on loong64 2024-08-07 01:16:28 +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 test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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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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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const2.go
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const3.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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convert4.go
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convinline.go
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convlit.go
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copy.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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deferprint.go
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deferprint.out
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divide.go
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embedvers.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 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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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
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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 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
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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 test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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: improve integer comparisons with numeric bounds 2024-01-23 00:02:36 +00:00
prove_constant_folding.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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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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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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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slice3err.go
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solitaire.go
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uintptrescapes.go
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utf.go
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winbatch.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.