mirror of
https://github.com/golang/go
synced 2024-10-05 05:01:22 -06:00
8107b0012f
Avoid targeting a partial register with load;
ensure source of load (writebarrier) is aligned.
Better yet would be "CMPB $1,writebarrier" but that requires
wrestling with flagalloc (mem operand complicates moving
instruction around).
Didn't see a change in time for
benchcmd -n 10 Build go build net/http
Verified that we clean the code up properly:
0x20a8 <main.main+104>: mov 0xc30a2(%rip),%eax
# 0xc5150 <runtime.writeBarrier>
0x20ae <main.main+110>: test %al,%al
Change-Id: Id5fb8c260eaec27bd727cb0ae1476c60343b0986
Reviewed-on: https://go-review.googlesource.com/19998
Reviewed-by: Keith Randall <khr@golang.org>
|
||
|---|---|---|
| .. | ||
| addr2line | ||
| api | ||
| asm | ||
| cgo | ||
| compile | ||
| cover | ||
| dist | ||
| doc | ||
| fix | ||
| go | ||
| gofmt | ||
| internal | ||
| link | ||
| newlink | ||
| nm | ||
| objdump | ||
| pack | ||
| pprof | ||
| trace | ||
| vet | ||
| yacc | ||