diff options
Diffstat (limited to 'src/runtime/mkduff.go')
| -rw-r--r-- | src/runtime/mkduff.go | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/runtime/mkduff.go b/src/runtime/mkduff.go index f1e4ed75d0..6b42b8524b 100644 --- a/src/runtime/mkduff.go +++ b/src/runtime/mkduff.go @@ -36,6 +36,7 @@ func main() { gen("386", notags, zero386, copy386) gen("arm", notags, zeroARM, copyARM) gen("arm64", notags, zeroARM64, copyARM64) + gen("loong64", notags, zeroLOONG64, copyLOONG64) gen("ppc64x", tagsPPC64x, zeroPPC64x, copyPPC64x) gen("mips64x", tagsMIPS64x, zeroMIPS64x, copyMIPS64x) gen("riscv64", notags, zeroRISCV64, copyRISCV64) @@ -176,6 +177,30 @@ func copyARM64(w io.Writer) { fmt.Fprintln(w, "\tRET") } +func zeroLOONG64(w io.Writer) { + // R0: always zero + // R19 (aka REGRT1): ptr to memory to be zeroed - 8 + // On return, R19 points to the last zeroed dword. + fmt.Fprintln(w, "TEXT runtime·duffzero(SB), NOSPLIT|NOFRAME, $0-0") + for i := 0; i < 128; i++ { + fmt.Fprintln(w, "\tMOVV\tR0, 8(R19)") + fmt.Fprintln(w, "\tADDV\t$8, R19") + } + fmt.Fprintln(w, "\tRET") +} + +func copyLOONG64(w io.Writer) { + fmt.Fprintln(w, "TEXT runtime·duffcopy(SB), NOSPLIT|NOFRAME, $0-0") + for i := 0; i < 128; i++ { + fmt.Fprintln(w, "\tMOVV\t(R19), R30") + fmt.Fprintln(w, "\tADDV\t$8, R19") + fmt.Fprintln(w, "\tMOVV\tR30, (R20)") + fmt.Fprintln(w, "\tADDV\t$8, R20") + fmt.Fprintln(w) + } + fmt.Fprintln(w, "\tRET") +} + func tagsPPC64x(w io.Writer) { fmt.Fprintln(w) fmt.Fprintln(w, "//go:build ppc64 || ppc64le") |