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| author | nimelehin <nimelehin@gmail.com> | 2022-05-09 23:22:14 +0300 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2022-05-10 20:52:34 +0000 |
| commit | e0f99775f24cd19ad96847b0a5b00952aac9d548 (patch) | |
| tree | f34556190f4b2d3878e94f5573def51e6e86e714 /src/os/exec/exec_test.go | |
| parent | aeaf4b0e5b21ea0819b4e862ed86ce44760516bf (diff) | |
| download | go-e0f99775f24cd19ad96847b0a5b00952aac9d548.tar.xz | |
runtime: store pointer-size words in memclr
GC requires the whole zeroed word to be visible for a memory subsystem.
While the implementation of Enhanced REP STOSB tries to use as efficient
stores as possible, e.g writing the whole cache line and not byte-after-byte,
we should use REP STOSQ to guarantee the requirements of the GC.
The performance is not affected.
Change-Id: I1b0fd1444a40bfbb661541291ab96eba11bcc762
Reviewed-on: https://go-review.googlesource.com/c/go/+/405274
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/os/exec/exec_test.go')
0 files changed, 0 insertions, 0 deletions