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cmd/internal/obj/loong64: add ROTR, ROTRV instructions support
Reference: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html Change-Id: I29adb84eb70bffd963c79ed6957a5197896fb2bf Reviewed-on: https://go-review.googlesource.com/c/go/+/422316 Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> Reviewed-by: Ian Lance Taylor <iant@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
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@ -41,8 +41,12 @@ lable2:
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SRL R4, R5, R6 // a6901700
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SRA R4, R5 // a5101800
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SRA R4, R5, R6 // a6101800
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ROTR R4, R5 // a5101b00
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ROTR R4, R5, R6 // a6101b00
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SLLV R4, R5 // a5901800
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SLLV R4, R5, R6 // a6901800
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ROTRV R4, R5 // a5901b00
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ROTRV R4, R5, R6 // a6901b00
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CLO R4, R5 // 85100000
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CLZ R4, R5 // 85140000
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ADDF F4, F5 // a5900001
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@ -102,8 +106,12 @@ lable2:
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SRL $4, R4 // 84904400
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SRA $4, R4, R5 // 85904800
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SRA $4, R4 // 84904800
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ROTR $4, R4, R5 // 85904c00
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ROTR $4, R4 // 84904c00
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SLLV $4, R4, R5 // 85104100
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SLLV $4, R4 // 84104100
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ROTRV $4, R4, R5 // 85104d00
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ROTRV $4, R4 // 84104d00
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SYSCALL // 00002b00
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BEQ R4, R5, 1(PC) // 85040058
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BEQ R4, 1(PC) // 80040058
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@ -335,6 +335,7 @@ const (
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ASQRTF
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ASRA
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ASRL
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AROTR
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ASUB
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ASUBD
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ASUBF
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@ -362,6 +363,7 @@ const (
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ASLLV
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ASRAV
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ASRLV
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AROTRV
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ADIVV
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ADIVVU
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@ -88,6 +88,7 @@ var Anames = []string{
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"SQRTF",
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"SRA",
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"SRL",
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"ROTR",
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"SUB",
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"SUBD",
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"SUBF",
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@ -107,6 +108,7 @@ var Anames = []string{
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"SLLV",
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"SRAV",
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"SRLV",
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"ROTRV",
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"DIVV",
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"DIVVU",
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"REMV",
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@ -980,10 +980,12 @@ func buildop(ctxt *obj.Link) {
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case ASLL:
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opset(ASRL, r0)
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opset(ASRA, r0)
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opset(AROTR, r0)
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case ASLLV:
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opset(ASRAV, r0)
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opset(ASRLV, r0)
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opset(AROTRV, r0)
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case ASUB:
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opset(ASUBU, r0)
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@ -1653,12 +1655,16 @@ func (c *ctxt0) oprrr(a obj.As) uint32 {
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return 0x2f << 15
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case ASRA:
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return 0x30 << 15
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case AROTR:
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return 0x36 << 15
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case ASLLV:
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return 0x31 << 15
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case ASRLV:
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return 0x32 << 15
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case ASRAV:
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return 0x33 << 15
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case AROTRV:
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return 0x37 << 15
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case AADDV:
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return 0x21 << 15
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case AADDVU:
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@ -1845,6 +1851,8 @@ func (c *ctxt0) opirr(a obj.As) uint32 {
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return 0x00089 << 15
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case ASRA:
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return 0x00091 << 15
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case AROTR:
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return 0x00099 << 15
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case AADDV:
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return 0x00b << 22
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case AADDVU:
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@ -1939,6 +1947,9 @@ func (c *ctxt0) opirr(a obj.As) uint32 {
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case ASRAV,
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-ASRAV:
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return 0x0049 << 16
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case AROTRV,
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-AROTRV:
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return 0x004d << 16
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case -ALL:
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return 0x020 << 24
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case -ALLV:
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@ -1961,7 +1972,8 @@ func vshift(a obj.As) bool {
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switch a {
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case ASLLV,
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ASRLV,
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ASRAV:
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ASRAV,
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AROTRV:
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return true
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}
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return false
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