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Keith Randall 2c6d106541 [release-branch.go1.22] cmd/compile: don't assume args are always zero-extended 
On amd64, we always zero-extend when loading arguments from the stack.
On arm64, we extend based on the type. This causes problems with
zeroUpper*Bits, which reports the top bits are zero when they aren't.

Fix it to use the type to decide if the top bits are really zero.

For tests, only f32 currently fails on arm64. Added other tests
just for future-proofing.

Fixes #66076

Change-Id: I2f13fb47198e139ef13c9a34eb1edc932eea3ee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/571135
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
(cherry picked from commit 6bf8b76b95)
Reviewed-on: https://go-review.googlesource.com/c/go/+/573395
Reviewed-by: Cherry Mui <cherryyz@google.com>
 		2024-03-27 18:49:49 +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 reflect: fix ArenaNew to match documentation 2023-06-16 17:08:43 +00:00
asmhdr.dir
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chan
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closure3.dir cmd/compile/internal/noder: remove inlined closure naming hack 2023-08-17 19:36:29 +00:00
closure5.dir
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codegen all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
ddd2.dir
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dwarf
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fixedbugs [release-branch.go1.22] cmd/compile: don't assume args are always zero-extended 2024-03-27 18:49:49 +00:00
import2.dir
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import4.dir
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interface go/types, types2: more systematic use of Checker.use und useLHS 2023-03-28 14:28:33 +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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retjmp.dir
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runtime
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stress
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syntax
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typeparam all: remove newline characters after return statements 2023-12-14 17:22:18 +00:00
uintptrescapes.dir
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64bit.go
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235.go
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README.md internal/testdir: move to cmd/internal/testdir 2023-05-12 17:18:08 +00:00
alg.go
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alias.go
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alias1.go
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atomicload.go
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bigalg.go
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bom.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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closure3.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
closure4.go
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closure6.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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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 all: add wasip1 support 2023-04-11 20:56:32 +00:00
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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decl.go
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defer.go
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defererrcheck.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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empty.go
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env.go test,internal/testdir: don't set GOOS/GOARCH 2023-05-12 12:34:59 +00:00
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/internal/inl: inline based on scoring when GOEXPERIMENT=newinliner 2023-09-14 19:43:26 +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/internal/escape: optimize indirect closure calls 2023-08-17 16:36:09 +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 test: remove *_unified.go variants 2023-05-23 17:16:35 +00:00
escape_indir.go
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escape_level.go
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escape_map.go
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escape_mutations.go cmd/compile: restore zero-copy string->[]byte optimization 2023-08-18 11:58:37 +00:00
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
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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 test: add test cases for index value with range array clear 2023-07-10 16:36:41 +00:00
func.go
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func1.go
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func2.go
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func3.go
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fuse.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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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index.go
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indirect.go
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init.go
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initcomma.go
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initexp.go
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inline.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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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linkmain.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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linkname.go
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linkobj.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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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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live.go math/rand, math/rand/v2: use ChaCha8 for global rand 2023-12-05 20:34:30 +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_regabi.go math/rand, math/rand/v2: use ChaCha8 for global rand 2023-12-05 20:34:30 +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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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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maplinear.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
maymorestack.go
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newinline.go cmd/compile/internal/inline: refactor AnalyzeFunc 2023-11-16 20:15:25 +00:00
nil.go
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nilptr.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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nilptr3.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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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 cmd/compile: reenable inline static init 2023-04-14 17:57:36 +00:00
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
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opt_branchlikely.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +00:00
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print.go
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prove.go test: migrate remaining files to go:build syntax 2023-10-19 23:33:25 +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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rename1.go cmd/compile/internal/types2: only mark variables as used if they are 2023-04-19 14:07:00 +00:00
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tighten.go cmd/compile: enhance tighten pass for memory values 2023-05-16 01:01:38 +00:00
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zerosize.go cmd/link: put zero-sized data symbols at same address as runtime.zerobase 2023-04-28 18:35:43 +00:00

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.