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cmd/intarnal/obj: add new assembly format for VANDV and VANDB on loong64

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In order to make it easier to write in assembly and to be consistent
with the usage of general instructions, a new assembly format is
added for the instructions VANDV and VANDB.

It also works for instructions XVAND{V,B}, [X]V{OR,XOR,NOR,ANDN,ORN}V
and [X]V{OR,XOR,NOR}B.

Change-Id: Ia75d607ac918950e58840ec627aaf0be45d837fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/671316
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Xiaolin Zhao 2025-05-13 10:50:51 +08:00 • committed by abner chenc
parent a1c3e2f008
commit c62099cfac
2 changed files with 24 additions and 0 deletions
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20
src/cmd/asm/internal/asm/testdata/loong64enc1.s vendored
View file

@ -547,12 +547,22 @@ lable2:
VNORV V1, V2, V3 // 43842771
VANDNV V1, V2, V3 // 43042871
VORNV V1, V2, V3 // 43842871
VANDV V1, V2 // 42042671
VORV V1, V2 // 42842671
VXORV V1, V2 // 42042771
VNORV V1, V2 // 42842771
VANDNV V1, V2 // 42042871
VORNV V1, V2 // 42842871
// VANDB,VORB,VXORB,VNORB
VANDB $0, V2, V3 // 4300d073
VORB $64, V2, V3 // 4300d573
VXORB $128, V2, V3 // 4300da73
VNORB $255, V2, V3 // 43fcdf73
VANDB $0, V2 // 4200d073
VORB $64, V2 // 4200d573
VXORB $128, V2 // 4200da73
VNORB $255, V2 // 42fcdf73
// XVANDV,XVORV,XVXORV,XVNORV,XVANDNV,XVORNV
XVANDV X1, X2, X3 // 43042675
@ -561,12 +571,22 @@ lable2:
XVNORV X1, X2, X3 // 43842775
XVANDNV X1, X2, X3 // 43042875
XVORNV X1, X2, X3 // 43842875
XVANDV X1, X2 // 42042675
XVORV X1, X2 // 42842675
XVXORV X1, X2 // 42042775
XVNORV X1, X2 // 42842775
XVANDNV X1, X2 // 42042875
XVORNV X1, X2 // 42842875
// XVANDB,XVORB,XVXORB,XVNORB
XVANDB $0, X2, X3 // 4300d077
XVORB $1, X2, X3 // 4304d477
XVXORB $127, X2, X3 // 43fcd977
XVNORB $255, X2, X3 // 43fcdf77
XVANDB $0, X2 // 4200d077
XVORB $1, X2 // 4204d477
XVXORB $127, X2 // 42fcd977
XVNORB $255, X2 // 42fcdf77
// MOVV C_DCON12_0, r
MOVV $0x7a90000000000000, R4 // MOVV $8831558869273542656, R4 // 04a41e03

4
src/cmd/internal/obj/loong64/asm.go
View file

@ -92,9 +92,13 @@ var optab = []Optab{
{AVSEQB, C_S5CON, C_VREG, C_NONE, C_VREG, C_NONE, 22, 4, 0, 0},
{AXVSEQB, C_S5CON, C_XREG, C_NONE, C_XREG, C_NONE, 22, 4, 0, 0},
{AVANDV, C_VREG, C_VREG, C_NONE, C_VREG, C_NONE, 2, 4, 0, 0},
{AVANDV, C_VREG, C_NONE, C_NONE, C_VREG, C_NONE, 2, 4, 0, 0},
{AXVANDV, C_XREG, C_XREG, C_NONE, C_XREG, C_NONE, 2, 4, 0, 0},
{AXVANDV, C_XREG, C_NONE, C_NONE, C_XREG, C_NONE, 2, 4, 0, 0},
{AVANDB, C_U8CON, C_VREG, C_NONE, C_VREG, C_NONE, 23, 4, 0, 0},
{AVANDB, C_U8CON, C_NONE, C_NONE, C_VREG, C_NONE, 23, 4, 0, 0},
{AXVANDB, C_U8CON, C_XREG, C_NONE, C_XREG, C_NONE, 23, 4, 0, 0},
{AXVANDB, C_U8CON, C_NONE, C_NONE, C_XREG, C_NONE, 23, 4, 0, 0},
{AVADDB, C_VREG, C_VREG, C_NONE, C_VREG, C_NONE, 2, 4, 0, 0},
{AVADDB, C_VREG, C_NONE, C_NONE, C_VREG, C_NONE, 2, 4, 0, 0},