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Revert "cmd/internal/obj/loong64: use the MOVVP instruction to optimize prologue"

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This reverts commit eb7c67fdc9.

Reason for revert: Causes x/tools/gopls/internal/filecache/TestConcurrency failures, See issue 75571.

Fixes #75571
Fixes #75572

Change-Id: Ife328dce917c63c872da35f4a9e9f7ef8f88c712
Reviewed-on: https://go-review.googlesource.com/c/go/+/706035
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
This commit is contained in:
abner chenc 2025-09-22 20:24:56 -07:00 • committed by Gopher Robot
parent 45d6bc76af
commit dd1d597c3a
1 changed files with 1 additions and 1 deletions
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2
src/cmd/internal/obj/loong64/obj.go
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@ -324,7 +324,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
q = c.ctxt.StartUnsafePoint(q, c.newprog) q = c.ctxt.StartUnsafePoint(q, c.newprog)
q = obj.Appendp(q, newprog) q = obj.Appendp(q, newprog)
q.As = AMOVVP q.As = mov
q.Pos = p.Pos q.Pos = p.Pos
q.From.Type = obj.TYPE_REG q.From.Type = obj.TYPE_REG
q.From.Reg = REGLINK q.From.Reg = REGLINK