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cmd/internal/obj/arm64: remove the transition from $0 to ZR 

Previously we convert $0 to the ZR register for some reasons, which causes
two problems:
1. Confusion, the special case of the ZR register needs to be considered
when dealing with constants. For encoding, some places we encode ZR, and
some places we encode $0, although we have converted $0 to ZR.
2. Unexpected instruction format. All instructions that support ZR register
operands can be replaced by $0.

This patch removes this conversion. Note that this patch may cause previously
unintendedly supported instruction formats to no longer be supported.

Change-Id: I3d8d2c06711b7614a38191397da7776417f1861c
Reviewed-on: https://go-review.googlesource.com/c/go/+/404316
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
eric fang 2022-05-05 07:46:05 +00:00 committed by Eric Fang
parent 0a52d80666
commit 9f0f87c806
7 changed files with 285 additions and 255 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/cmd/asm/internal/asm/testdata/arm64.s vendored
View File

@ -95,6 +95,14 @@ TEXT foo(SB), DUPOK|NOSPLIT, $-8
// CLS
CLSW R1, R2
CLS R1, R2
SBC $0, R1 // 21001fda
SBCW $0, R1 // 21001f5a
SBCS $0, R1 // 21001ffa
SBCSW $0, R1 // 21001f7a
ADC $0, R1 // 21001f9a
ADCW $0, R1 // 21001f1a
ADCS $0, R1 // 21001fba
ADCSW $0, R1 // 21001f3a
// fp/simd instructions.
VADDP V1.B16, V2.B16, V3.B16 // 43bc214e
@ -386,7 +394,7 @@ TEXT foo(SB), DUPOK|NOSPLIT, $-8
MOVD $0x11110000, R1 // MOVD $286326784, R1 // 2122a2d2
MOVD $0xaaaa0000aaaa1111, R1 // MOVD $-6149102338357718767, R1 // 212282d24155b5f24155f5f2
MOVD $0x1111ffff1111aaaa, R1 // MOVD $1230045644216969898, R1 // a1aa8a922122a2f22122e2f2
MOVD $0, R1 // 010080d2
MOVD $0, R1 // e1031faa
MOVD $-1, R1 // 01008092
MOVD $0x210000, R0 // MOVD $2162688, R0 // 2004a0d2
MOVD $0xffffffffffffaaaa, R1 // MOVD $-21846, R1 // a1aa8a92
@ -496,6 +504,15 @@ TEXT foo(SB), DUPOK|NOSPLIT, $-8
FMOVQ.P 11(R10), F13 // 4db5c03c
FMOVQ.W 11(R20), F15 // 8fbec03c
// storing $0 to memory, $0 will be replaced with ZR.
MOVD $0, (R1) // 3f0000f9
MOVW $0, (R1) // 3f0000b9
MOVWU $0, (R1) // 3f0000b9
MOVH $0, (R1) // 3f000079
MOVHU $0, (R1) // 3f000079
MOVB $0, (R1) // 3f000039
MOVBU $0, (R1) // 3f000039
// small offset fits into instructions
MOVB R1, 1(R2) // 41040039
MOVH R1, 1(R2) // 41100078

2
src/cmd/asm/internal/asm/testdata/arm64enc.s vendored
View File

@ -263,7 +263,7 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$-8
MOVKW $(3905<<0), R21 // MOVKW $3905, R21 // 35e88172
MOVKW $(3905<<16), R21 // MOVKW $255918080, R21 // 35e8a172
MOVK $(3905<<32), R21 // MOVK $16771847290880, R21 // 35e8c1f2
MOVD $0, R5 // 050080d2
MOVD $0, R5 // e5031faa
MSR $1, SPSel // bf4100d5
MSR $9, DAIFSet // df4903d5
MSR $6, DAIFClr // ff4603d5

3
src/cmd/internal/obj/arm64/a.out.go
View File

@ -343,6 +343,7 @@ const (
// The more specific class needs to come earlier.
C_NONE = iota
C_REG // R0..R30
C_ZREG // R0..R30, ZR
C_RSP // R0..R30, RSP
C_FREG // F0..F31
C_VREG // V0..V31
@ -356,7 +357,7 @@ const (
C_ELEM // Vn.<T>[index]
C_LIST // [V1, V2, V3]
C_ZCON // $0 or ZR
C_ZCON // $0
C_ABCON0 // could be C_ADDCON0 or C_BITCON
C_ADDCON0 // 12-bit unsigned, unshifted
C_ABCON // could be C_ADDCON or C_BITCON

1
src/cmd/internal/obj/arm64/anames7.go
View File

@ -8,6 +8,7 @@ package arm64
var cnames7 = []string{
"NONE",
"REG",
"ZREG",
"RSP",
"FREG",
"VREG",

475
src/cmd/internal/obj/arm64/asm7.go
View File

@ -291,14 +291,14 @@ var optab = []Optab{
{obj.ATEXT, C_ADDR, C_NONE, C_NONE, C_TEXTSIZE, 0, 0, 0, 0, 0},
/* arithmetic operations */
{AADD, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AADD, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AADC, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AADC, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{ANEG, C_REG, C_NONE, C_NONE, C_REG, 25, 4, 0, 0, 0},
{ANEG, C_NONE, C_NONE, C_NONE, C_REG, 25, 4, 0, 0, 0},
{ANGC, C_REG, C_NONE, C_NONE, C_REG, 17, 4, 0, 0, 0},
{ACMP, C_REG, C_REG, C_NONE, C_NONE, 1, 4, 0, 0, 0},
{AADD, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AADD, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AADC, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AADC, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{ANEG, C_ZREG, C_NONE, C_NONE, C_ZREG, 25, 4, 0, 0, 0},
{ANEG, C_NONE, C_NONE, C_NONE, C_ZREG, 25, 4, 0, 0, 0},
{ANGC, C_ZREG, C_NONE, C_NONE, C_ZREG, 17, 4, 0, 0, 0},
{ACMP, C_ZREG, C_ZREG, C_NONE, C_NONE, 1, 4, 0, 0, 0},
{AADD, C_ADDCON, C_RSP, C_NONE, C_RSP, 2, 4, 0, 0, 0},
{AADD, C_ADDCON, C_NONE, C_NONE, C_RSP, 2, 4, 0, 0, 0},
{ACMP, C_ADDCON, C_RSP, C_NONE, C_NONE, 2, 4, 0, 0, 0},
@ -316,29 +316,29 @@ var optab = []Optab{
{AADD, C_MOVCON3, C_NONE, C_NONE, C_RSP, 13, 16, 0, 0, 0},
{AADD, C_VCON, C_RSP, C_NONE, C_RSP, 13, 20, 0, 0, 0},
{AADD, C_VCON, C_NONE, C_NONE, C_RSP, 13, 20, 0, 0, 0},
{ACMP, C_MOVCON2, C_REG, C_NONE, C_NONE, 13, 12, 0, 0, 0},
{ACMP, C_MOVCON3, C_REG, C_NONE, C_NONE, 13, 16, 0, 0, 0},
{ACMP, C_VCON, C_REG, C_NONE, C_NONE, 13, 20, 0, 0, 0},
{AADD, C_SHIFT, C_REG, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AADD, C_SHIFT, C_NONE, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AMVN, C_SHIFT, C_NONE, C_NONE, C_REG, 3, 4, 0, 0, 0},
{ACMP, C_SHIFT, C_REG, C_NONE, C_NONE, 3, 4, 0, 0, 0},
{ANEG, C_SHIFT, C_NONE, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AADD, C_REG, C_RSP, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{AADD, C_REG, C_NONE, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{ACMP, C_REG, C_RSP, C_NONE, C_NONE, 27, 4, 0, 0, 0},
{ACMP, C_MOVCON2, C_ZREG, C_NONE, C_NONE, 13, 12, 0, 0, 0},
{ACMP, C_MOVCON3, C_ZREG, C_NONE, C_NONE, 13, 16, 0, 0, 0},
{ACMP, C_VCON, C_ZREG, C_NONE, C_NONE, 13, 20, 0, 0, 0},
{AADD, C_SHIFT, C_ZREG, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AADD, C_SHIFT, C_NONE, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AMVN, C_SHIFT, C_NONE, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{ACMP, C_SHIFT, C_ZREG, C_NONE, C_NONE, 3, 4, 0, 0, 0},
{ANEG, C_SHIFT, C_NONE, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AADD, C_ZREG, C_RSP, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{AADD, C_ZREG, C_NONE, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{ACMP, C_ZREG, C_RSP, C_NONE, C_NONE, 27, 4, 0, 0, 0},
{AADD, C_EXTREG, C_RSP, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{AADD, C_EXTREG, C_NONE, C_NONE, C_RSP, 27, 4, 0, 0, 0},
{ACMP, C_EXTREG, C_RSP, C_NONE, C_NONE, 27, 4, 0, 0, 0},
{AADD, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AADD, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AMUL, C_REG, C_REG, C_NONE, C_REG, 15, 4, 0, 0, 0},
{AMUL, C_REG, C_NONE, C_NONE, C_REG, 15, 4, 0, 0, 0},
{AMADD, C_REG, C_REG, C_REG, C_REG, 15, 4, 0, 0, 0},
{AREM, C_REG, C_REG, C_NONE, C_REG, 16, 8, 0, 0, 0},
{AREM, C_REG, C_NONE, C_NONE, C_REG, 16, 8, 0, 0, 0},
{ASDIV, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{ASDIV, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AADD, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AADD, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AMUL, C_ZREG, C_ZREG, C_NONE, C_ZREG, 15, 4, 0, 0, 0},
{AMUL, C_ZREG, C_NONE, C_NONE, C_ZREG, 15, 4, 0, 0, 0},
{AMADD, C_ZREG, C_ZREG, C_ZREG, C_ZREG, 15, 4, 0, 0, 0},
{AREM, C_ZREG, C_ZREG, C_NONE, C_ZREG, 16, 8, 0, 0, 0},
{AREM, C_ZREG, C_NONE, C_NONE, C_ZREG, 16, 8, 0, 0, 0},
{ASDIV, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{ASDIV, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AFADDS, C_FREG, C_NONE, C_NONE, C_FREG, 54, 4, 0, 0, 0},
{AFADDS, C_FREG, C_FREG, C_NONE, C_FREG, 54, 4, 0, 0, 0},
@ -352,67 +352,68 @@ var optab = []Optab{
{AVADDV, C_ARNG, C_NONE, C_NONE, C_VREG, 85, 4, 0, 0, 0},
/* logical operations */
{AAND, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AAND, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AANDS, C_REG, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0},
{AANDS, C_REG, C_NONE, C_NONE, C_REG, 1, 4, 0, 0, 0},
{ATST, C_REG, C_REG, C_NONE, C_NONE, 1, 4, 0, 0, 0},
{AAND, C_MBCON, C_REG, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AAND, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AAND, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AANDS, C_ZREG, C_ZREG, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{AANDS, C_ZREG, C_NONE, C_NONE, C_ZREG, 1, 4, 0, 0, 0},
{ATST, C_ZREG, C_ZREG, C_NONE, C_NONE, 1, 4, 0, 0, 0},
{AAND, C_MBCON, C_ZREG, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AAND, C_MBCON, C_NONE, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AANDS, C_MBCON, C_REG, C_NONE, C_REG, 53, 4, 0, 0, 0},
{AANDS, C_MBCON, C_NONE, C_NONE, C_REG, 53, 4, 0, 0, 0},
{ATST, C_MBCON, C_REG, C_NONE, C_NONE, 53, 4, 0, 0, 0},
{AAND, C_BITCON, C_REG, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AANDS, C_MBCON, C_ZREG, C_NONE, C_ZREG, 53, 4, 0, 0, 0},
{AANDS, C_MBCON, C_NONE, C_NONE, C_ZREG, 53, 4, 0, 0, 0},
{ATST, C_MBCON, C_ZREG, C_NONE, C_NONE, 53, 4, 0, 0, 0},
{AAND, C_BITCON, C_ZREG, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AAND, C_BITCON, C_NONE, C_NONE, C_RSP, 53, 4, 0, 0, 0},
{AANDS, C_BITCON, C_REG, C_NONE, C_REG, 53, 4, 0, 0, 0},
{AANDS, C_BITCON, C_NONE, C_NONE, C_REG, 53, 4, 0, 0, 0},
{ATST, C_BITCON, C_REG, C_NONE, C_NONE, 53, 4, 0, 0, 0},
{AAND, C_MOVCON, C_REG, C_NONE, C_REG, 62, 8, 0, 0, 0},
{AAND, C_MOVCON, C_NONE, C_NONE, C_REG, 62, 8, 0, 0, 0},
{AANDS, C_MOVCON, C_REG, C_NONE, C_REG, 62, 8, 0, 0, 0},
{AANDS, C_MOVCON, C_NONE, C_NONE, C_REG, 62, 8, 0, 0, 0},
{ATST, C_MOVCON, C_REG, C_NONE, C_NONE, 62, 8, 0, 0, 0},
{AAND, C_MOVCON2, C_REG, C_NONE, C_REG, 28, 12, 0, 0, 0},
{AAND, C_MOVCON2, C_NONE, C_NONE, C_REG, 28, 12, 0, 0, 0},
{AAND, C_MOVCON3, C_REG, C_NONE, C_REG, 28, 16, 0, 0, 0},
{AAND, C_MOVCON3, C_NONE, C_NONE, C_REG, 28, 16, 0, 0, 0},
{AAND, C_VCON, C_REG, C_NONE, C_REG, 28, 20, 0, 0, 0},
{AAND, C_VCON, C_NONE, C_NONE, C_REG, 28, 20, 0, 0, 0},
{AANDS, C_MOVCON2, C_REG, C_NONE, C_REG, 28, 12, 0, 0, 0},
{AANDS, C_MOVCON2, C_NONE, C_NONE, C_REG, 28, 12, 0, 0, 0},
{AANDS, C_MOVCON3, C_REG, C_NONE, C_REG, 28, 16, 0, 0, 0},
{AANDS, C_MOVCON3, C_NONE, C_NONE, C_REG, 28, 16, 0, 0, 0},
{AANDS, C_VCON, C_REG, C_NONE, C_REG, 28, 20, 0, 0, 0},
{AANDS, C_VCON, C_NONE, C_NONE, C_REG, 28, 20, 0, 0, 0},
{ATST, C_MOVCON2, C_REG, C_NONE, C_NONE, 28, 12, 0, 0, 0},
{ATST, C_MOVCON3, C_REG, C_NONE, C_NONE, 28, 16, 0, 0, 0},
{ATST, C_VCON, C_REG, C_NONE, C_NONE, 28, 20, 0, 0, 0},
{AAND, C_SHIFT, C_REG, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AAND, C_SHIFT, C_NONE, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AANDS, C_SHIFT, C_REG, C_NONE, C_REG, 3, 4, 0, 0, 0},
{AANDS, C_SHIFT, C_NONE, C_NONE, C_REG, 3, 4, 0, 0, 0},
{ATST, C_SHIFT, C_REG, C_NONE, C_NONE, 3, 4, 0, 0, 0},
{AANDS, C_BITCON, C_ZREG, C_NONE, C_ZREG, 53, 4, 0, 0, 0},
{AANDS, C_BITCON, C_NONE, C_NONE, C_ZREG, 53, 4, 0, 0, 0},
{ATST, C_BITCON, C_ZREG, C_NONE, C_NONE, 53, 4, 0, 0, 0},
{AAND, C_MOVCON, C_ZREG, C_NONE, C_ZREG, 62, 8, 0, 0, 0},
{AAND, C_MOVCON, C_NONE, C_NONE, C_ZREG, 62, 8, 0, 0, 0},
{AANDS, C_MOVCON, C_ZREG, C_NONE, C_ZREG, 62, 8, 0, 0, 0},
{AANDS, C_MOVCON, C_NONE, C_NONE, C_ZREG, 62, 8, 0, 0, 0},
{ATST, C_MOVCON, C_ZREG, C_NONE, C_NONE, 62, 8, 0, 0, 0},
{AAND, C_MOVCON2, C_ZREG, C_NONE, C_ZREG, 28, 12, 0, 0, 0},
{AAND, C_MOVCON2, C_NONE, C_NONE, C_ZREG, 28, 12, 0, 0, 0},
{AAND, C_MOVCON3, C_ZREG, C_NONE, C_ZREG, 28, 16, 0, 0, 0},
{AAND, C_MOVCON3, C_NONE, C_NONE, C_ZREG, 28, 16, 0, 0, 0},
{AAND, C_VCON, C_ZREG, C_NONE, C_ZREG, 28, 20, 0, 0, 0},
{AAND, C_VCON, C_NONE, C_NONE, C_ZREG, 28, 20, 0, 0, 0},
{AANDS, C_MOVCON2, C_ZREG, C_NONE, C_ZREG, 28, 12, 0, 0, 0},
{AANDS, C_MOVCON2, C_NONE, C_NONE, C_ZREG, 28, 12, 0, 0, 0},
{AANDS, C_MOVCON3, C_ZREG, C_NONE, C_ZREG, 28, 16, 0, 0, 0},
{AANDS, C_MOVCON3, C_NONE, C_NONE, C_ZREG, 28, 16, 0, 0, 0},
{AANDS, C_VCON, C_ZREG, C_NONE, C_ZREG, 28, 20, 0, 0, 0},
{AANDS, C_VCON, C_NONE, C_NONE, C_ZREG, 28, 20, 0, 0, 0},
{ATST, C_MOVCON2, C_ZREG, C_NONE, C_NONE, 28, 12, 0, 0, 0},
{ATST, C_MOVCON3, C_ZREG, C_NONE, C_NONE, 28, 16, 0, 0, 0},
{ATST, C_VCON, C_ZREG, C_NONE, C_NONE, 28, 20, 0, 0, 0},
{AAND, C_SHIFT, C_ZREG, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AAND, C_SHIFT, C_NONE, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AANDS, C_SHIFT, C_ZREG, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{AANDS, C_SHIFT, C_NONE, C_NONE, C_ZREG, 3, 4, 0, 0, 0},
{ATST, C_SHIFT, C_ZREG, C_NONE, C_NONE, 3, 4, 0, 0, 0},
{AMOVD, C_RSP, C_NONE, C_NONE, C_RSP, 24, 4, 0, 0, 0},
{AMVN, C_REG, C_NONE, C_NONE, C_REG, 24, 4, 0, 0, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_REG, 45, 4, 0, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_REG, 45, 4, 0, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_REG, 45, 4, 0, 0, 0}, /* also MOVHU */
{AMOVW, C_REG, C_NONE, C_NONE, C_REG, 45, 4, 0, 0, 0}, /* also MOVWU */
{AMOVD, C_ZREG, C_NONE, C_NONE, C_ZREG, 24, 4, 0, 0, 0},
{AMVN, C_ZREG, C_NONE, C_NONE, C_ZREG, 24, 4, 0, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_ZREG, 45, 4, 0, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_ZREG, 45, 4, 0, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_ZREG, 45, 4, 0, 0, 0}, /* also MOVHU */
{AMOVW, C_ZREG, C_NONE, C_NONE, C_ZREG, 45, 4, 0, 0, 0}, /* also MOVWU */
/* TODO: MVN C_SHIFT */
/* MOVs that become MOVK/MOVN/MOVZ/ADD/SUB/OR */
{AMOVW, C_MBCON, C_NONE, C_NONE, C_REG, 32, 4, 0, 0, 0},
{AMOVD, C_MBCON, C_NONE, C_NONE, C_REG, 32, 4, 0, 0, 0},
{AMOVW, C_MOVCON, C_NONE, C_NONE, C_REG, 32, 4, 0, 0, 0},
{AMOVD, C_MOVCON, C_NONE, C_NONE, C_REG, 32, 4, 0, 0, 0},
{AMOVW, C_MBCON, C_NONE, C_NONE, C_ZREG, 32, 4, 0, 0, 0},
{AMOVD, C_MBCON, C_NONE, C_NONE, C_ZREG, 32, 4, 0, 0, 0},
{AMOVW, C_MOVCON, C_NONE, C_NONE, C_ZREG, 32, 4, 0, 0, 0},
{AMOVD, C_MOVCON, C_NONE, C_NONE, C_ZREG, 32, 4, 0, 0, 0},
{AMOVW, C_BITCON, C_NONE, C_NONE, C_RSP, 32, 4, 0, 0, 0},
{AMOVD, C_BITCON, C_NONE, C_NONE, C_RSP, 32, 4, 0, 0, 0},
{AMOVW, C_MOVCON2, C_NONE, C_NONE, C_REG, 12, 8, 0, NOTUSETMP, 0},
{AMOVD, C_MOVCON2, C_NONE, C_NONE, C_REG, 12, 8, 0, NOTUSETMP, 0},
{AMOVD, C_MOVCON3, C_NONE, C_NONE, C_REG, 12, 12, 0, NOTUSETMP, 0},
{AMOVD, C_VCON, C_NONE, C_NONE, C_REG, 12, 16, 0, NOTUSETMP, 0},
{AMOVW, C_MOVCON2, C_NONE, C_NONE, C_ZREG, 12, 8, 0, NOTUSETMP, 0},
{AMOVD, C_MOVCON2, C_NONE, C_NONE, C_ZREG, 12, 8, 0, NOTUSETMP, 0},
{AMOVD, C_MOVCON3, C_NONE, C_NONE, C_ZREG, 12, 12, 0, NOTUSETMP, 0},
{AMOVD, C_VCON, C_NONE, C_NONE, C_ZREG, 12, 16, 0, NOTUSETMP, 0},
{AMOVK, C_VCON, C_NONE, C_NONE, C_REG, 33, 4, 0, 0, 0},
{AMOVK, C_VCON, C_NONE, C_NONE, C_ZREG, 33, 4, 0, 0, 0},
{AMOVD, C_AACON, C_NONE, C_NONE, C_RSP, 4, 4, REGFROM, 0, 0},
{AMOVD, C_AACON2, C_NONE, C_NONE, C_RSP, 4, 8, REGFROM, NOTUSETMP, 0},
@ -428,31 +429,31 @@ var optab = []Optab{
{AB, C_NONE, C_NONE, C_NONE, C_SBRA, 5, 4, 0, 0, 0},
{ABL, C_NONE, C_NONE, C_NONE, C_SBRA, 5, 4, 0, 0, 0},
{AB, C_NONE, C_NONE, C_NONE, C_ZOREG, 6, 4, 0, 0, 0},
{ABL, C_NONE, C_NONE, C_NONE, C_REG, 6, 4, 0, 0, 0},
{ABL, C_REG, C_NONE, C_NONE, C_REG, 6, 4, 0, 0, 0},
{ABL, C_NONE, C_NONE, C_NONE, C_ZREG, 6, 4, 0, 0, 0},
{ABL, C_ZREG, C_NONE, C_NONE, C_ZREG, 6, 4, 0, 0, 0},
{ABL, C_NONE, C_NONE, C_NONE, C_ZOREG, 6, 4, 0, 0, 0},
{obj.ARET, C_NONE, C_NONE, C_NONE, C_REG, 6, 4, 0, 0, 0},
{obj.ARET, C_NONE, C_NONE, C_NONE, C_ZREG, 6, 4, 0, 0, 0},
{obj.ARET, C_NONE, C_NONE, C_NONE, C_ZOREG, 6, 4, 0, 0, 0},
{ABEQ, C_NONE, C_NONE, C_NONE, C_SBRA, 7, 4, 0, 0, 0},
{ACBZ, C_REG, C_NONE, C_NONE, C_SBRA, 39, 4, 0, 0, 0},
{ATBZ, C_VCON, C_REG, C_NONE, C_SBRA, 40, 4, 0, 0, 0},
{ACBZ, C_ZREG, C_NONE, C_NONE, C_SBRA, 39, 4, 0, 0, 0},
{ATBZ, C_VCON, C_ZREG, C_NONE, C_SBRA, 40, 4, 0, 0, 0},
{AERET, C_NONE, C_NONE, C_NONE, C_NONE, 41, 4, 0, 0, 0},
// get a PC-relative address
{AADRP, C_SBRA, C_NONE, C_NONE, C_REG, 60, 4, 0, 0, 0},
{AADR, C_SBRA, C_NONE, C_NONE, C_REG, 61, 4, 0, 0, 0},
{AADRP, C_SBRA, C_NONE, C_NONE, C_ZREG, 60, 4, 0, 0, 0},
{AADR, C_SBRA, C_NONE, C_NONE, C_ZREG, 61, 4, 0, 0, 0},
{ACLREX, C_NONE, C_NONE, C_NONE, C_VCON, 38, 4, 0, 0, 0},
{ACLREX, C_NONE, C_NONE, C_NONE, C_NONE, 38, 4, 0, 0, 0},
{ABFM, C_VCON, C_REG, C_VCON, C_REG, 42, 4, 0, 0, 0},
{ABFI, C_VCON, C_REG, C_VCON, C_REG, 43, 4, 0, 0, 0},
{AEXTR, C_VCON, C_REG, C_REG, C_REG, 44, 4, 0, 0, 0},
{ASXTB, C_REG, C_NONE, C_NONE, C_REG, 45, 4, 0, 0, 0},
{ACLS, C_REG, C_NONE, C_NONE, C_REG, 46, 4, 0, 0, 0},
{ALSL, C_VCON, C_REG, C_NONE, C_REG, 8, 4, 0, 0, 0},
{ALSL, C_VCON, C_NONE, C_NONE, C_REG, 8, 4, 0, 0, 0},
{ALSL, C_REG, C_NONE, C_NONE, C_REG, 9, 4, 0, 0, 0},
{ALSL, C_REG, C_REG, C_NONE, C_REG, 9, 4, 0, 0, 0},
{ABFM, C_VCON, C_ZREG, C_VCON, C_ZREG, 42, 4, 0, 0, 0},
{ABFI, C_VCON, C_ZREG, C_VCON, C_ZREG, 43, 4, 0, 0, 0},
{AEXTR, C_VCON, C_ZREG, C_ZREG, C_ZREG, 44, 4, 0, 0, 0},
{ASXTB, C_ZREG, C_NONE, C_NONE, C_ZREG, 45, 4, 0, 0, 0},
{ACLS, C_ZREG, C_NONE, C_NONE, C_ZREG, 46, 4, 0, 0, 0},
{ALSL, C_VCON, C_ZREG, C_NONE, C_ZREG, 8, 4, 0, 0, 0},
{ALSL, C_VCON, C_NONE, C_NONE, C_ZREG, 8, 4, 0, 0, 0},
{ALSL, C_ZREG, C_NONE, C_NONE, C_ZREG, 9, 4, 0, 0, 0},
{ALSL, C_ZREG, C_ZREG, C_NONE, C_ZREG, 9, 4, 0, 0, 0},
{ASVC, C_VCON, C_NONE, C_NONE, C_NONE, 10, 4, 0, 0, 0},
{ASVC, C_NONE, C_NONE, C_NONE, C_NONE, 10, 4, 0, 0, 0},
{ADWORD, C_NONE, C_NONE, C_NONE, C_VCON, 11, 8, 0, NOTUSETMP, 0},
@ -462,21 +463,21 @@ var optab = []Optab{
{AWORD, C_NONE, C_NONE, C_NONE, C_LCON, 14, 4, 0, 0, 0},
{AWORD, C_NONE, C_NONE, C_NONE, C_LEXT, 14, 4, 0, 0, 0},
{AWORD, C_NONE, C_NONE, C_NONE, C_ADDR, 14, 4, 0, 0, 0},
{AMOVW, C_VCONADDR, C_NONE, C_NONE, C_REG, 68, 8, 0, NOTUSETMP, 0},
{AMOVD, C_VCONADDR, C_NONE, C_NONE, C_REG, 68, 8, 0, NOTUSETMP, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVB, C_ADDR, C_NONE, C_NONE, C_REG, 65, 12, 0, 0, 0},
{AMOVBU, C_ADDR, C_NONE, C_NONE, C_REG, 65, 12, 0, 0, 0},
{AMOVH, C_ADDR, C_NONE, C_NONE, C_REG, 65, 12, 0, 0, 0},
{AMOVW, C_ADDR, C_NONE, C_NONE, C_REG, 65, 12, 0, 0, 0},
{AMOVD, C_ADDR, C_NONE, C_NONE, C_REG, 65, 12, 0, 0, 0},
{AMOVD, C_GOTADDR, C_NONE, C_NONE, C_REG, 71, 8, 0, 0, 0},
{AMOVD, C_TLS_LE, C_NONE, C_NONE, C_REG, 69, 4, 0, 0, 0},
{AMOVD, C_TLS_IE, C_NONE, C_NONE, C_REG, 70, 8, 0, 0, 0},
{AMOVW, C_VCONADDR, C_NONE, C_NONE, C_ZREG, 68, 8, 0, NOTUSETMP, 0},
{AMOVD, C_VCONADDR, C_NONE, C_NONE, C_ZREG, 68, 8, 0, NOTUSETMP, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AMOVB, C_ADDR, C_NONE, C_NONE, C_ZREG, 65, 12, 0, 0, 0},
{AMOVBU, C_ADDR, C_NONE, C_NONE, C_ZREG, 65, 12, 0, 0, 0},
{AMOVH, C_ADDR, C_NONE, C_NONE, C_ZREG, 65, 12, 0, 0, 0},
{AMOVW, C_ADDR, C_NONE, C_NONE, C_ZREG, 65, 12, 0, 0, 0},
{AMOVD, C_ADDR, C_NONE, C_NONE, C_ZREG, 65, 12, 0, 0, 0},
{AMOVD, C_GOTADDR, C_NONE, C_NONE, C_ZREG, 71, 8, 0, 0, 0},
{AMOVD, C_TLS_LE, C_NONE, C_NONE, C_ZREG, 69, 4, 0, 0, 0},
{AMOVD, C_TLS_IE, C_NONE, C_NONE, C_ZREG, 70, 8, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_ADDR, 64, 12, 0, 0, 0},
{AFMOVS, C_ADDR, C_NONE, C_NONE, C_FREG, 65, 12, 0, 0, 0},
@ -486,22 +487,22 @@ var optab = []Optab{
{AFMOVS, C_FREG, C_NONE, C_NONE, C_FREG, 54, 4, 0, 0, 0},
{AFMOVD, C_FCON, C_NONE, C_NONE, C_FREG, 55, 4, 0, 0, 0},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_FREG, 54, 4, 0, 0, 0},
{AFMOVS, C_REG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_REG, 29, 4, 0, 0, 0},
{AFMOVD, C_REG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_REG, 29, 4, 0, 0, 0},
{AFCVTZSD, C_FREG, C_NONE, C_NONE, C_REG, 29, 4, 0, 0, 0},
{ASCVTFD, C_REG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFMOVS, C_ZREG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_ZREG, 29, 4, 0, 0, 0},
{AFMOVD, C_ZREG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_ZREG, 29, 4, 0, 0, 0},
{AFCVTZSD, C_FREG, C_NONE, C_NONE, C_ZREG, 29, 4, 0, 0, 0},
{ASCVTFD, C_ZREG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AFCVTSD, C_FREG, C_NONE, C_NONE, C_FREG, 29, 4, 0, 0, 0},
{AVMOV, C_ELEM, C_NONE, C_NONE, C_REG, 73, 4, 0, 0, 0},
{AVMOV, C_ELEM, C_NONE, C_NONE, C_ZREG, 73, 4, 0, 0, 0},
{AVMOV, C_ELEM, C_NONE, C_NONE, C_ELEM, 92, 4, 0, 0, 0},
{AVMOV, C_ELEM, C_NONE, C_NONE, C_VREG, 80, 4, 0, 0, 0},
{AVMOV, C_REG, C_NONE, C_NONE, C_ARNG, 82, 4, 0, 0, 0},
{AVMOV, C_REG, C_NONE, C_NONE, C_ELEM, 78, 4, 0, 0, 0},
{AVMOV, C_ZREG, C_NONE, C_NONE, C_ARNG, 82, 4, 0, 0, 0},
{AVMOV, C_ZREG, C_NONE, C_NONE, C_ELEM, 78, 4, 0, 0, 0},
{AVMOV, C_ARNG, C_NONE, C_NONE, C_ARNG, 83, 4, 0, 0, 0},
{AVDUP, C_ELEM, C_NONE, C_NONE, C_ARNG, 79, 4, 0, 0, 0},
{AVDUP, C_ELEM, C_NONE, C_NONE, C_VREG, 80, 4, 0, 0, 0},
{AVDUP, C_REG, C_NONE, C_NONE, C_ARNG, 82, 4, 0, 0, 0},
{AVDUP, C_ZREG, C_NONE, C_NONE, C_ARNG, 82, 4, 0, 0, 0},
{AVMOVI, C_ADDCON, C_NONE, C_NONE, C_ARNG, 86, 4, 0, 0, 0},
{AVFMLA, C_ARNG, C_ARNG, C_NONE, C_ARNG, 72, 4, 0, 0, 0},
{AVEXT, C_VCON, C_ARNG, C_ARNG, C_ARNG, 94, 4, 0, 0, 0},
@ -513,25 +514,25 @@ var optab = []Optab{
{AVUADDW, C_ARNG, C_ARNG, C_NONE, C_ARNG, 105, 4, 0, 0, 0},
/* conditional operations */
{ACSEL, C_COND, C_REG, C_REG, C_REG, 18, 4, 0, 0, 0},
{ACINC, C_COND, C_REG, C_NONE, C_REG, 18, 4, 0, 0, 0},
{ACSET, C_COND, C_NONE, C_NONE, C_REG, 18, 4, 0, 0, 0},
{ACSEL, C_COND, C_ZREG, C_ZREG, C_ZREG, 18, 4, 0, 0, 0},
{ACINC, C_COND, C_ZREG, C_NONE, C_ZREG, 18, 4, 0, 0, 0},
{ACSET, C_COND, C_NONE, C_NONE, C_ZREG, 18, 4, 0, 0, 0},
{AFCSELD, C_COND, C_FREG, C_FREG, C_FREG, 18, 4, 0, 0, 0},
{ACCMN, C_COND, C_REG, C_REG, C_VCON, 19, 4, 0, 0, 0},
{ACCMN, C_COND, C_REG, C_VCON, C_VCON, 19, 4, 0, 0, 0},
{ACCMN, C_COND, C_ZREG, C_ZREG, C_VCON, 19, 4, 0, 0, 0},
{ACCMN, C_COND, C_ZREG, C_VCON, C_VCON, 19, 4, 0, 0, 0},
{AFCCMPS, C_COND, C_FREG, C_FREG, C_VCON, 57, 4, 0, 0, 0},
/* scaled 12-bit unsigned displacement store */
{AMOVB, C_REG, C_NONE, C_NONE, C_UAUTO4K, 20, 4, REGSP, 0, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_UOREG4K, 20, 4, 0, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_UAUTO4K, 20, 4, REGSP, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_UOREG4K, 20, 4, 0, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_UAUTO8K, 20, 4, REGSP, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_UOREG8K, 20, 4, 0, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_UAUTO16K, 20, 4, REGSP, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_UOREG16K, 20, 4, 0, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_UAUTO32K, 20, 4, REGSP, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_UOREG32K, 20, 4, 0, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_UAUTO4K, 20, 4, REGSP, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_UOREG4K, 20, 4, 0, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_UAUTO4K, 20, 4, REGSP, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_UOREG4K, 20, 4, 0, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_UAUTO8K, 20, 4, REGSP, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_UOREG8K, 20, 4, 0, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_UAUTO16K, 20, 4, REGSP, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_UOREG16K, 20, 4, 0, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_UAUTO32K, 20, 4, REGSP, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_UOREG32K, 20, 4, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_UAUTO16K, 20, 4, REGSP, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_UOREG16K, 20, 4, 0, 0, 0},
@ -541,16 +542,16 @@ var optab = []Optab{
{AFMOVQ, C_FREG, C_NONE, C_NONE, C_UOREG64K, 20, 4, 0, 0, 0},
/* unscaled 9-bit signed displacement store */
{AMOVB, C_REG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_NSAUTO, 20, 4, REGSP, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
@ -560,16 +561,16 @@ var optab = []Optab{
{AFMOVQ, C_FREG, C_NONE, C_NONE, C_NSOREG, 20, 4, 0, 0, 0},
/* scaled 12-bit unsigned displacement load */
{AMOVB, C_UAUTO4K, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVB, C_UOREG4K, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVBU, C_UAUTO4K, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVBU, C_UOREG4K, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVH, C_UAUTO8K, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVH, C_UOREG8K, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVW, C_UAUTO16K, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVW, C_UOREG16K, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVD, C_UAUTO32K, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVD, C_UOREG32K, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVB, C_UAUTO4K, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVB, C_UOREG4K, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVBU, C_UAUTO4K, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVBU, C_UOREG4K, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVH, C_UAUTO8K, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVH, C_UOREG8K, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVW, C_UAUTO16K, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVW, C_UOREG16K, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVD, C_UAUTO32K, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVD, C_UOREG32K, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AFMOVS, C_UAUTO16K, C_NONE, C_NONE, C_FREG, 21, 4, REGSP, 0, 0},
{AFMOVS, C_UOREG16K, C_NONE, C_NONE, C_FREG, 21, 4, 0, 0, 0},
@ -579,16 +580,16 @@ var optab = []Optab{
{AFMOVQ, C_UOREG64K, C_NONE, C_NONE, C_FREG, 21, 4, 0, 0, 0},
/* unscaled 9-bit signed displacement load */
{AMOVB, C_NSAUTO, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVB, C_NSOREG, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVBU, C_NSAUTO, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVBU, C_NSOREG, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVH, C_NSAUTO, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVH, C_NSOREG, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVW, C_NSAUTO, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVW, C_NSOREG, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVD, C_NSAUTO, C_NONE, C_NONE, C_REG, 21, 4, REGSP, 0, 0},
{AMOVD, C_NSOREG, C_NONE, C_NONE, C_REG, 21, 4, 0, 0, 0},
{AMOVB, C_NSAUTO, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVB, C_NSOREG, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVBU, C_NSAUTO, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVBU, C_NSOREG, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVH, C_NSAUTO, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVH, C_NSOREG, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVW, C_NSAUTO, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVW, C_NSOREG, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AMOVD, C_NSAUTO, C_NONE, C_NONE, C_ZREG, 21, 4, REGSP, 0, 0},
{AMOVD, C_NSOREG, C_NONE, C_NONE, C_ZREG, 21, 4, 0, 0, 0},
{AFMOVS, C_NSAUTO, C_NONE, C_NONE, C_FREG, 21, 4, REGSP, 0, 0},
{AFMOVS, C_NSOREG, C_NONE, C_NONE, C_FREG, 21, 4, 0, 0, 0},
@ -598,16 +599,16 @@ var optab = []Optab{
{AFMOVQ, C_NSOREG, C_NONE, C_NONE, C_FREG, 21, 4, 0, 0, 0},
/* long displacement store */
{AMOVB, C_REG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVBU, C_REG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_LAUTO, 30, 8, REGSP, LTO, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
@ -617,16 +618,16 @@ var optab = []Optab{
{AFMOVQ, C_FREG, C_NONE, C_NONE, C_LOREG, 30, 8, 0, LTO, 0},
/* long displacement load */
{AMOVB, C_LAUTO, C_NONE, C_NONE, C_REG, 31, 8, REGSP, LFROM, 0},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_REG, 31, 8, 0, LFROM, 0},
{AMOVBU, C_LAUTO, C_NONE, C_NONE, C_REG, 31, 8, REGSP, LFROM, 0},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_REG, 31, 8, 0, LFROM, 0},
{AMOVH, C_LAUTO, C_NONE, C_NONE, C_REG, 31, 8, REGSP, LFROM, 0},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_REG, 31, 8, 0, LFROM, 0},
{AMOVW, C_LAUTO, C_NONE, C_NONE, C_REG, 31, 8, REGSP, LFROM, 0},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_REG, 31, 8, 0, LFROM, 0},
{AMOVD, C_LAUTO, C_NONE, C_NONE, C_REG, 31, 8, REGSP, LFROM, 0},
{AMOVD, C_LOREG, C_NONE, C_NONE, C_REG, 31, 8, 0, LFROM, 0},
{AMOVB, C_LAUTO, C_NONE, C_NONE, C_ZREG, 31, 8, REGSP, LFROM, 0},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_ZREG, 31, 8, 0, LFROM, 0},
{AMOVBU, C_LAUTO, C_NONE, C_NONE, C_ZREG, 31, 8, REGSP, LFROM, 0},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_ZREG, 31, 8, 0, LFROM, 0},
{AMOVH, C_LAUTO, C_NONE, C_NONE, C_ZREG, 31, 8, REGSP, LFROM, 0},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_ZREG, 31, 8, 0, LFROM, 0},
{AMOVW, C_LAUTO, C_NONE, C_NONE, C_ZREG, 31, 8, REGSP, LFROM, 0},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_ZREG, 31, 8, 0, LFROM, 0},
{AMOVD, C_LAUTO, C_NONE, C_NONE, C_ZREG, 31, 8, REGSP, LFROM, 0},
{AMOVD, C_LOREG, C_NONE, C_NONE, C_ZREG, 31, 8, 0, LFROM, 0},
{AFMOVS, C_LAUTO, C_NONE, C_NONE, C_FREG, 31, 8, REGSP, LFROM, 0},
{AFMOVS, C_LOREG, C_NONE, C_NONE, C_FREG, 31, 8, 0, LFROM, 0},
@ -636,57 +637,57 @@ var optab = []Optab{
{AFMOVQ, C_LOREG, C_NONE, C_NONE, C_FREG, 31, 8, 0, LFROM, 0},
/* pre/post-indexed load (unscaled, signed 9-bit offset) */
{AMOVD, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPOST},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPOST},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPOST},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPOST},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPOST},
{AMOVD, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPOST},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPOST},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPOST},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPOST},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPOST},
{AFMOVS, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPOST},
{AFMOVD, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPOST},
{AFMOVQ, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPOST},
{AMOVD, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPRE},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPRE},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPRE},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPRE},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_REG, 22, 4, 0, 0, C_XPRE},
{AMOVD, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPRE},
{AMOVW, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPRE},
{AMOVH, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPRE},
{AMOVB, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPRE},
{AMOVBU, C_LOREG, C_NONE, C_NONE, C_ZREG, 22, 4, 0, 0, C_XPRE},
{AFMOVS, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPRE},
{AFMOVD, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPRE},
{AFMOVQ, C_LOREG, C_NONE, C_NONE, C_FREG, 22, 4, 0, 0, C_XPRE},
/* pre/post-indexed store (unscaled, signed 9-bit offset) */
{AMOVD, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVW, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVH, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVB, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVBU, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AFMOVQ, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPOST},
{AMOVD, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVW, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVH, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVB, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVBU, C_REG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AMOVBU, C_ZREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
{AFMOVQ, C_FREG, C_NONE, C_NONE, C_LOREG, 23, 4, 0, 0, C_XPRE},
/* load with shifted or extended register offset */
{AMOVD, C_ROFF, C_NONE, C_NONE, C_REG, 98, 4, 0, 0, 0},
{AMOVW, C_ROFF, C_NONE, C_NONE, C_REG, 98, 4, 0, 0, 0},
{AMOVH, C_ROFF, C_NONE, C_NONE, C_REG, 98, 4, 0, 0, 0},
{AMOVB, C_ROFF, C_NONE, C_NONE, C_REG, 98, 4, 0, 0, 0},
{AMOVBU, C_ROFF, C_NONE, C_NONE, C_REG, 98, 4, 0, 0, 0},
{AMOVD, C_ROFF, C_NONE, C_NONE, C_ZREG, 98, 4, 0, 0, 0},
{AMOVW, C_ROFF, C_NONE, C_NONE, C_ZREG, 98, 4, 0, 0, 0},
{AMOVH, C_ROFF, C_NONE, C_NONE, C_ZREG, 98, 4, 0, 0, 0},
{AMOVB, C_ROFF, C_NONE, C_NONE, C_ZREG, 98, 4, 0, 0, 0},
{AMOVBU, C_ROFF, C_NONE, C_NONE, C_ZREG, 98, 4, 0, 0, 0},
{AFMOVS, C_ROFF, C_NONE, C_NONE, C_FREG, 98, 4, 0, 0, 0},
{AFMOVD, C_ROFF, C_NONE, C_NONE, C_FREG, 98, 4, 0, 0, 0},
/* store with extended register offset */
{AMOVD, C_REG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVW, C_REG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVH, C_REG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVB, C_REG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVW, C_ZREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVH, C_ZREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AMOVB, C_ZREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AFMOVS, C_FREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
{AFMOVD, C_FREG, C_NONE, C_NONE, C_ROFF, 99, 4, 0, 0, 0},
@ -792,17 +793,17 @@ var optab = []Optab{
{ASTPW, C_PAIR, C_NONE, C_NONE, C_LOREG, 77, 12, 0, LTO, 0},
{ASTPW, C_PAIR, C_NONE, C_NONE, C_ADDR, 87, 12, 0, 0, 0},
{ASWPD, C_REG, C_NONE, C_NONE, C_ZOREG, 47, 4, 0, 0, 0}, // RegTo2=C_REG
{ASWPD, C_REG, C_NONE, C_NONE, C_ZAUTO, 47, 4, REGSP, 0, 0}, // RegTo2=C_REG
{ASWPD, C_ZREG, C_NONE, C_NONE, C_ZOREG, 47, 4, 0, 0, 0}, // RegTo2=C_REG
{ASWPD, C_ZREG, C_NONE, C_NONE, C_ZAUTO, 47, 4, REGSP, 0, 0}, // RegTo2=C_REG
{ACASPD, C_PAIR, C_NONE, C_NONE, C_ZOREG, 106, 4, 0, 0, 0}, // RegTo2=C_REGREG
{ACASPD, C_PAIR, C_NONE, C_NONE, C_ZAUTO, 106, 4, REGSP, 0, 0}, // RegTo2=C_REGREG
{ALDAR, C_ZOREG, C_NONE, C_NONE, C_REG, 58, 4, 0, 0, 0},
{ALDXR, C_ZOREG, C_NONE, C_NONE, C_REG, 58, 4, 0, 0, 0},
{ALDAXR, C_ZOREG, C_NONE, C_NONE, C_REG, 58, 4, 0, 0, 0},
{ALDAR, C_ZOREG, C_NONE, C_NONE, C_ZREG, 58, 4, 0, 0, 0},
{ALDXR, C_ZOREG, C_NONE, C_NONE, C_ZREG, 58, 4, 0, 0, 0},
{ALDAXR, C_ZOREG, C_NONE, C_NONE, C_ZREG, 58, 4, 0, 0, 0},
{ALDXP, C_ZOREG, C_NONE, C_NONE, C_PAIR, 58, 4, 0, 0, 0},
{ASTLR, C_REG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_NONE
{ASTXR, C_REG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_REG
{ASTLXR, C_REG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_REG
{ASTLR, C_ZREG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_NONE
{ASTXR, C_ZREG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_REG
{ASTLXR, C_ZREG, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0}, // RegTo2=C_REG
{ASTXP, C_PAIR, C_NONE, C_NONE, C_ZOREG, 59, 4, 0, 0, 0},
/* VLD[1-4]/VST[1-4] */
@ -832,10 +833,10 @@ var optab = []Optab{
{AVST1, C_ELEM, C_NONE, C_NONE, C_LOREG, 96, 4, 0, 0, 0},
/* special */
{AMOVD, C_SPR, C_NONE, C_NONE, C_REG, 35, 4, 0, 0, 0},
{AMRS, C_SPR, C_NONE, C_NONE, C_REG, 35, 4, 0, 0, 0},
{AMOVD, C_REG, C_NONE, C_NONE, C_SPR, 36, 4, 0, 0, 0},
{AMSR, C_REG, C_NONE, C_NONE, C_SPR, 36, 4, 0, 0, 0},
{AMOVD, C_SPR, C_NONE, C_NONE, C_ZREG, 35, 4, 0, 0, 0},
{AMRS, C_SPR, C_NONE, C_NONE, C_ZREG, 35, 4, 0, 0, 0},
{AMOVD, C_ZREG, C_NONE, C_NONE, C_SPR, 36, 4, 0, 0, 0},
{AMSR, C_ZREG, C_NONE, C_NONE, C_SPR, 36, 4, 0, 0, 0},
{AMOVD, C_VCON, C_NONE, C_NONE, C_SPR, 37, 4, 0, 0, 0},
{AMSR, C_VCON, C_NONE, C_NONE, C_SPR, 37, 4, 0, 0, 0},
{AMSR, C_VCON, C_NONE, C_NONE, C_SPOP, 37, 4, 0, 0, 0},
@ -844,15 +845,15 @@ var optab = []Optab{
{ADMB, C_VCON, C_NONE, C_NONE, C_NONE, 51, 4, 0, 0, 0},
{AHINT, C_VCON, C_NONE, C_NONE, C_NONE, 52, 4, 0, 0, 0},
{ASYS, C_VCON, C_NONE, C_NONE, C_NONE, 50, 4, 0, 0, 0},
{ASYS, C_VCON, C_NONE, C_NONE, C_REG, 50, 4, 0, 0, 0},
{ASYSL, C_VCON, C_NONE, C_NONE, C_REG, 50, 4, 0, 0, 0},
{ASYS, C_VCON, C_NONE, C_NONE, C_ZREG, 50, 4, 0, 0, 0},
{ASYSL, C_VCON, C_NONE, C_NONE, C_ZREG, 50, 4, 0, 0, 0},
{ATLBI, C_SPOP, C_NONE, C_NONE, C_NONE, 107, 4, 0, 0, 0},
{ATLBI, C_SPOP, C_NONE, C_NONE, C_REG, 107, 4, 0, 0, 0},
{ATLBI, C_SPOP, C_NONE, C_NONE, C_ZREG, 107, 4, 0, 0, 0},
/* encryption instructions */
{AAESD, C_VREG, C_NONE, C_NONE, C_VREG, 29, 4, 0, 0, 0}, // for compatibility with old code
{AAESD, C_ARNG, C_NONE, C_NONE, C_ARNG, 29, 4, 0, 0, 0}, // recommend using the new one for better readability
{ASHA1C, C_VREG, C_REG, C_NONE, C_VREG, 1, 4, 0, 0, 0},
{ASHA1C, C_VREG, C_ZREG, C_NONE, C_VREG, 1, 4, 0, 0, 0},
{ASHA1C, C_ARNG, C_VREG, C_NONE, C_VREG, 1, 4, 0, 0, 0},
{ASHA1H, C_VREG, C_NONE, C_NONE, C_VREG, 29, 4, 0, 0, 0},
{ASHA1SU0, C_ARNG, C_ARNG, C_NONE, C_ARNG, 1, 4, 0, 0, 0},
@ -867,7 +868,7 @@ var optab = []Optab{
{obj.AFUNCDATA, C_VCON, C_NONE, C_NONE, C_ADDR, 0, 0, 0, 0, 0},
{obj.ANOP, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
{obj.ANOP, C_LCON, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0}, // nop variants, see #40689
{obj.ANOP, C_REG, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
{obj.ANOP, C_ZREG, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
{obj.ANOP, C_VREG, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
{obj.ADUFFZERO, C_NONE, C_NONE, C_NONE, C_SBRA, 5, 4, 0, 0, 0}, // same as AB/ABL
{obj.ADUFFCOPY, C_NONE, C_NONE, C_NONE, C_SBRA, 5, 4, 0, 0, 0}, // same as AB/ABL
@ -1807,7 +1808,7 @@ func rclass(r int16) int {
case REG_R0 <= r && r <= REG_R30: // not 31
return C_REG
case r == REGZERO:
return C_ZCON
return C_ZREG
case REG_F0 <= r && r <= REG_F31:
return C_FREG
case REG_V0 <= r && r <= REG_V31:
@ -2200,8 +2201,8 @@ func cmp(a int, b int) bool {
return true
}
case C_REG:
if b == C_ZCON {
case C_ZREG:
if b == C_REG {
return true
}
@ -3883,13 +3884,13 @@ func (c *ctxt7) asmout(p *obj.Prog, o *Optab, out []uint32) {
case 29: /* op Rn, Rd */
fc := c.aclass(&p.From)
tc := c.aclass(&p.To)
if (p.As == AFMOVD || p.As == AFMOVS) && (fc == C_REG || fc == C_ZCON || tc == C_REG || tc == C_ZCON) {
if (p.As == AFMOVD || p.As == AFMOVS) && (fc == C_REG || tc == C_REG) {
// FMOV Rx, Fy or FMOV Fy, Rx
o1 = FPCVTI(0, 0, 0, 0, 6)
if p.As == AFMOVD {
o1 |= 1<<31 | 1<<22 // 64-bit
}
if fc == C_REG || fc == C_ZCON {
if fc == C_REG {
o1 |= 1 << 16 // FMOV Rx, Fy
}
} else {

35
src/cmd/internal/obj/arm64/obj7.go
View File

@ -51,10 +51,24 @@ var complements = []obj.As{
ACMNW: ACMPW,
}
// noZRreplace is the set of instructions for which $0 in the To operand
// should NOT be replaced with REGZERO.
var noZRreplace = map[obj.As]bool{
APRFM: true,
// zrReplace is the set of instructions for which $0 in the From operand
// should be replaced with REGZERO.
var zrReplace = map[obj.As]bool{
AMOVD: true,
AMOVW: true,
AMOVWU: true,
AMOVH: true,
AMOVHU: true,
AMOVB: true,
AMOVBU: true,
ASBC: true,
ASBCW: true,
ASBCS: true,
ASBCSW: true,
AADC: true,
AADCW: true,
AADCS: true,
AADCSW: true,
}
func (c *ctxt7) stacksplit(p *obj.Prog, framesize int32) *obj.Prog {
@ -301,18 +315,13 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
p.From.Class = 0
p.To.Class = 0
// $0 results in C_ZCON, which matches both C_REG and various
// C_xCON, however the C_REG cases in asmout don't expect a
// constant, so they will use the register fields and assemble
// a R0. To prevent that, rewrite $0 as ZR.
if p.From.Type == obj.TYPE_CONST && p.From.Offset == 0 {
// Previously we rewrote $0 to ZR, but we have now removed this change.
// In order to be compatible with some previous legal instruction formats,
// reserve the previous conversion for some specific instructions.
if p.From.Type == obj.TYPE_CONST && p.From.Offset == 0 && zrReplace[p.As] {
p.From.Type = obj.TYPE_REG
p.From.Reg = REGZERO
}
if p.To.Type == obj.TYPE_CONST && p.To.Offset == 0 && !noZRreplace[p.As] {
p.To.Type = obj.TYPE_REG
p.To.Reg = REGZERO
}
// Rewrite BR/BL to symbol as TYPE_BRANCH.
switch p.As {

5
test/codegen/bitfield.go
View File

@ -122,10 +122,10 @@ func sbfx1(x int64) int64 {
}
func sbfx2(x int64) int64 {
return (x << 60) >> 60 // arm64:"SBFX\tZR, R[0-9]+, [$]4",-"LSL",-"ASR"
return (x << 60) >> 60 // arm64:"SBFX\t[$]0, R[0-9]+, [$]4",-"LSL",-"ASR"
}
// merge shift and sign-extension into sbfx.
// merge shift and sign-extension into sbfx.
func sbfx3(x int32) int64 {
return int64(x) >> 3 // arm64:"SBFX\t[$]3, R[0-9]+, [$]29",-"ASR"
}
@ -328,6 +328,7 @@ func ubfx16(x uint64) uint64 {
}
// Check that we don't emit comparisons for constant shifts.
//
//go:nosplit
func shift_no_cmp(x int) int {
// arm64:`LSL\t[$]17`,-`CMP`