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cmd/asm: add amd64 CLFLUSH instruction

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This is the last instruction I found missing in SSE2 set.

It does not reuse 'yprefetch' ytabs due to differences in
operands SRC/DST roles:
- PREFETCHx: ModRM:r/m(r) -> FROM
- CLFLUSH:   ModRM:r/m(w) -> TO

unaryDst map is extended accordingly.

Change-Id: I89e34ebb81cc0ee5f9ebbb1301bad417f7ee437f
Reviewed-on: https://go-review.googlesource.com/56833
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
isharipo 2017-08-18 13:33:00 +03:00 committed by Ilya Tocar
parent 26dadbe32c
commit 4074e4e5be
5 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/cmd/asm/internal/asm/testdata/amd64enc.s vendored
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@ -771,8 +771,8 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$0
//TODO: CLAC // 0f01ca
CLC // f8
CLD // fc
//TODO: CLFLUSH (BX) // 0fae3b
//TODO: CLFLUSH (R11) // 410fae3b
CLFLUSH (BX) // 0fae3b
CLFLUSH (R11) // 410fae3b
//TODO: CLFLUSHOPT (BX) // 660fae3b
//TODO: CLFLUSHOPT (R11) // 66410fae3b
CLI // fa

1
src/cmd/internal/obj/x86/a.out.go
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@ -76,6 +76,7 @@ const (
ABYTE
ACLC
ACLD
ACLFLUSH
ACLI
ACLTS
ACMC

1
src/cmd/internal/obj/x86/anames.go
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@ -38,6 +38,7 @@ var Anames = []string{
"BYTE",
"CLC",
"CLD",
"CLFLUSH",
"CLI",
"CLTS",
"CMC",

5
src/cmd/internal/obj/x86/asm6.go
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@ -551,6 +551,10 @@ var ypopl = []ytab{
{Ynone, Ynone, Ym, Zo_m, 2},
}
var yclflush = []ytab{
{Ynone, Ynone, Ym, Zo_m, 2},
}
var ybswap = []ytab{
{Ynone, Ynone, Yrl, Z_rp, 2},
}
@ -994,6 +998,7 @@ var optab =
{ACDQ, ynone, Px, [23]uint8{0x99}},
{ACLC, ynone, Px, [23]uint8{0xf8}},
{ACLD, ynone, Px, [23]uint8{0xfc}},
{ACLFLUSH, yclflush, Pm, [23]uint8{0xae, 07}},
{ACLI, ynone, Px, [23]uint8{0xfa}},
{ACLTS, ynone, Pm, [23]uint8{0x06}},
{ACMC, ynone, Px, [23]uint8{0xf5}},

1
src/cmd/internal/obj/x86/obj6.go
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@ -1183,6 +1183,7 @@ func stacksplit(ctxt *obj.Link, cursym *obj.LSym, p *obj.Prog, newprog obj.ProgA
var unaryDst = map[obj.As]bool{
ABSWAPL: true,
ABSWAPQ: true,
ACLFLUSH: true,
ACMPXCHG8B: true,
ADECB: true,
ADECL: true,