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74163c895a
The spill/restore code around morestack is almost never exectued, so we should make it as small as possible. Using 2-register loads/stores makes sense here. Also, the offsets from SP are pretty small so the offset almost always fits in the (smaller than a normal load/store) offset field of the instruction. Makes cmd/go 0.6% smaller. Change-Id: I8845283c1b269a259498153924428f6173bda293 Reviewed-on: https://go-review.googlesource.com/c/go/+/621556 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
32 lines
527 B
Go
32 lines
527 B
Go
// asmcheck
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// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package codegen
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func i64(a, b int64) int64 { // arm64:`STP\s`,`LDP\s`
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g()
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return a + b
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}
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func i32(a, b int32) int32 { // arm64:`STPW`,`LDPW`
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g()
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return a + b
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}
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func f64(a, b float64) float64 { // arm64:`FSTPD`,`FLDPD`
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g()
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return a + b
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}
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func f32(a, b float32) float32 { // arm64:`FSTPS`,`FLDPS`
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g()
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return a + b
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}
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//go:noinline
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func g() {
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}
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