diff options
Diffstat (limited to 'src/runtime/mkduff.go')
| -rw-r--r-- | src/runtime/mkduff.go | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/runtime/mkduff.go b/src/runtime/mkduff.go index 94ae75fbfe..8632fe08a3 100644 --- a/src/runtime/mkduff.go +++ b/src/runtime/mkduff.go @@ -2,6 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. +//go:build ignore // +build ignore // runtime·duffzero is a Duff's device for zeroing memory. @@ -62,15 +63,15 @@ func gen(arch string, tags, zero, copy func(io.Writer)) { func notags(w io.Writer) { fmt.Fprintln(w) } func zeroAMD64(w io.Writer) { - // X0: zero + // X15: zero // DI: ptr to memory to be zeroed // DI is updated as a side effect. - fmt.Fprintln(w, "TEXT runtime·duffzero(SB), NOSPLIT, $0-0") + fmt.Fprintln(w, "TEXT runtime·duffzero<ABIInternal>(SB), NOSPLIT, $0-0") for i := 0; i < 16; i++ { - fmt.Fprintln(w, "\tMOVUPS\tX0,(DI)") - fmt.Fprintln(w, "\tMOVUPS\tX0,16(DI)") - fmt.Fprintln(w, "\tMOVUPS\tX0,32(DI)") - fmt.Fprintln(w, "\tMOVUPS\tX0,48(DI)") + fmt.Fprintln(w, "\tMOVUPS\tX15,(DI)") + fmt.Fprintln(w, "\tMOVUPS\tX15,16(DI)") + fmt.Fprintln(w, "\tMOVUPS\tX15,32(DI)") + fmt.Fprintln(w, "\tMOVUPS\tX15,48(DI)") fmt.Fprintln(w, "\tLEAQ\t64(DI),DI") // We use lea instead of add, to avoid clobbering flags fmt.Fprintln(w) } @@ -84,7 +85,7 @@ func copyAMD64(w io.Writer) { // // This is equivalent to a sequence of MOVSQ but // for some reason that is 3.5x slower than this code. - fmt.Fprintln(w, "TEXT runtime·duffcopy(SB), NOSPLIT, $0-0") + fmt.Fprintln(w, "TEXT runtime·duffcopy<ABIInternal>(SB), NOSPLIT, $0-0") for i := 0; i < 64; i++ { fmt.Fprintln(w, "\tMOVUPS\t(SI), X0") fmt.Fprintln(w, "\tADDQ\t$16, SI") |