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Update to go1.24.5

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Vorapol Rinsatitnon
2025-07-10 22:34:08 +07:00
parent b065c9156b
commit 5f4d34edc5
40 changed files with 456 additions and 130 deletions
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12
src/cmd/compile/internal/ssa/_gen/AMD64Ops.go
View File

@@ -886,8 +886,8 @@ func init() {
inputs: []regMask{buildReg("DI")},
clobbers: buildReg("DI"),
},
faultOnNilArg0: true,
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
//faultOnNilArg0: true, // Note: removed for 73748. TODO: reenable at some point
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
},
// arg0 = address of memory to zero
@@ -924,10 +924,10 @@ func init() {
inputs: []regMask{buildReg("DI"), buildReg("SI")},
clobbers: buildReg("DI SI X0"), // uses X0 as a temporary
},
clobberFlags: true,
faultOnNilArg0: true,
faultOnNilArg1: true,
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
clobberFlags: true,
//faultOnNilArg0: true, // Note: removed for 73748. TODO: reenable at some point
//faultOnNilArg1: true,
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
},
// arg0 = destination pointer

10
src/cmd/compile/internal/ssa/_gen/ARM64Ops.go
View File

@@ -536,8 +536,8 @@ func init() {
inputs: []regMask{buildReg("R20")},
clobbers: buildReg("R16 R17 R20 R30"),
},
faultOnNilArg0: true,
unsafePoint: true, // FP maintenance around DUFFZERO can be clobbered by interrupts
//faultOnNilArg0: true, // Note: removed for 73748. TODO: reenable at some point
unsafePoint: true, // FP maintenance around DUFFZERO can be clobbered by interrupts
},
// large zeroing
@@ -577,9 +577,9 @@ func init() {
inputs: []regMask{buildReg("R21"), buildReg("R20")},
clobbers: buildReg("R16 R17 R20 R21 R26 R30"),
},
faultOnNilArg0: true,
faultOnNilArg1: true,
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
//faultOnNilArg0: true, // Note: removed for 73748. TODO: reenable at some point
//faultOnNilArg1: true,
unsafePoint: true, // FP maintenance around DUFFCOPY can be clobbered by interrupts
},
// large move

40
src/cmd/compile/internal/ssa/opGen.go
View File

@@ -13777,11 +13777,10 @@ var opcodeTable = [...]opInfo{
},
},
{
name: "DUFFZERO",
auxType: auxInt64,
argLen: 2,
faultOnNilArg0: true,
unsafePoint: true,
name: "DUFFZERO",
auxType: auxInt64,
argLen: 2,
unsafePoint: true,
reg: regInfo{
inputs: []inputInfo{
{0, 128}, // DI
@@ -13851,13 +13850,11 @@ var opcodeTable = [...]opInfo{
},
},
{
name: "DUFFCOPY",
auxType: auxInt64,
argLen: 3,
clobberFlags: true,
faultOnNilArg0: true,
faultOnNilArg1: true,
unsafePoint: true,
name: "DUFFCOPY",
auxType: auxInt64,
argLen: 3,
clobberFlags: true,
unsafePoint: true,
reg: regInfo{
inputs: []inputInfo{
{0, 128}, // DI
@@ -22970,11 +22967,10 @@ var opcodeTable = [...]opInfo{
},
},
{
name: "DUFFZERO",
auxType: auxInt64,
argLen: 2,
faultOnNilArg0: true,
unsafePoint: true,
name: "DUFFZERO",
auxType: auxInt64,
argLen: 2,
unsafePoint: true,
reg: regInfo{
inputs: []inputInfo{
{0, 1048576}, // R20
@@ -22996,12 +22992,10 @@ var opcodeTable = [...]opInfo{
},
},
{
name: "DUFFCOPY",
auxType: auxInt64,
argLen: 3,
faultOnNilArg0: true,
faultOnNilArg1: true,
unsafePoint: true,
name: "DUFFCOPY",
auxType: auxInt64,
argLen: 3,
unsafePoint: true,
reg: regInfo{
inputs: []inputInfo{
{0, 2097152}, // R21

19
src/cmd/compile/internal/ssa/rewrite.go
View File

@@ -1470,6 +1470,11 @@ func GetPPC64Shiftme(auxint int64) int64 {
// operation. Masks can also extend from the msb and wrap to
// the lsb too. That is, the valid masks are 32 bit strings
// of the form: 0..01..10..0 or 1..10..01..1 or 1...1
//
// Note: This ignores the upper 32 bits of the input. When a
// zero extended result is desired (e.g a 64 bit result), the
// user must verify the upper 32 bits are 0 and the mask is
// contiguous (that is, non-wrapping).
func isPPC64WordRotateMask(v64 int64) bool {
// Isolate rightmost 1 (if none 0) and add.
v := uint32(v64)
@@ -1480,6 +1485,16 @@ func isPPC64WordRotateMask(v64 int64) bool {
return (v&vp == 0 || vn&vpn == 0) && v != 0
}
// Test if this mask is a valid, contiguous bitmask which can be
// represented by a RLWNM mask and also clears the upper 32 bits
// of the register.
func isPPC64WordRotateMaskNonWrapping(v64 int64) bool {
// Isolate rightmost 1 (if none 0) and add.
v := uint32(v64)
vp := (v & -v) + v
return (v&vp == 0) && v != 0 && uint64(uint32(v64)) == uint64(v64)
}
// Compress mask and shift into single value of the form
// me | mb<<8 | rotate<<16 | nbits<<24 where me and mb can
// be used to regenerate the input mask.
@@ -1589,7 +1604,7 @@ func mergePPC64AndSrdi(m, s int64) int64 {
if rv&uint64(mask) != 0 {
return 0
}
if !isPPC64WordRotateMask(mask) {
if !isPPC64WordRotateMaskNonWrapping(mask) {
return 0
}
return encodePPC64RotateMask((32-s)&31, mask, 32)
@@ -1604,7 +1619,7 @@ func mergePPC64AndSldi(m, s int64) int64 {
if rv&uint64(mask) != 0 {
return 0
}
if !isPPC64WordRotateMask(mask) {
if !isPPC64WordRotateMaskNonWrapping(mask) {
return 0
}
return encodePPC64RotateMask(s&31, mask, 32)