deps: go-asmgen v0.16.0 with regenerated kernels; Go 1.27.1 checked on real loong64

README.md

@@ -4,7 +4,7 @@
 
 [![Docs](https://img.shields.io/badge/docs-mkdocs--material-013243)](https://go-ndarray.github.io/docs/)
 [![License](https://img.shields.io/badge/license-BSD--3--Clause-blue)](LICENSE)
-[![Go](https://img.shields.io/badge/go-1.26.6%2B-00ADD8)](https://go.dev/dl/)
+[![Go](https://img.shields.io/badge/go-1.27.1%2B-00ADD8)](https://go.dev/dl/)
 [![Status](https://img.shields.io/badge/status-numpy%20parity%20(float64)-9a6700)](docs/plan-ndarray.md)
 
 **A pure-Go (CGO=0) NumPy-style N-dimensional array library.** Row-major

SECURITY.md

@@ -57,6 +57,22 @@ standard library's known vulnerabilities; `govulncheck ./...` reports none.
 
 ## Audit log
 
+**2026-10-06 (v0.5.1).**
+
+- The Go floor is 1.27.1 since v0.5.0. `govulncheck` reports no vulnerability
+  for the library or for its generator module.
+- go1.27.0 and go1.27.1 miscompile one loong64 pattern
+  ([golang/go#81000](https://github.com/golang/go/issues/81000): a byte-sized
+  inlined result spilled with an 8-byte store, clobbering the stack slot next
+  to it), fixed in 1.27.2. On a real Loongson 3C5000L with LASX (cfarm401),
+  built with go1.27.1, the whole suite passes, including the fence tests, and
+  `FuzzOps` ran 52.7 million executions natively without a divergence from its
+  oracle. That is evidence that this library does not hit the pattern, not
+  proof. Raise the floor to 1.27.2 once it is released.
+- go-asmgen v0.16.0 regenerates the ppc64le and loong64 kernels with
+  different comments only. The instructions, and the `WORD` encodings Go's
+  assembler still lacks, are unchanged line for line.
+
 **2026-10-04 (v0.4.0).**
 
 - `FuzzOps` ran 47 million executions without a divergence. A first version

internal/kernels/asmgen/go.mod

@@ -6,4 +6,4 @@ module github.com/go-ndarray/ndarray/internal/kernels/asmgen
 
 go 1.27.1
 
-require github.com/go-asmgen/asmgen v0.14.0
+require github.com/go-asmgen/asmgen v0.16.0

internal/kernels/asmgen/go.sum

@@ -1,2 +1,2 @@
-github.com/go-asmgen/asmgen v0.14.0 h1:3f1L0X0RK1Vf1J9nb0Pei87vGRT5yhfNLNlecZ/SNFc=
-github.com/go-asmgen/asmgen v0.14.0/go.mod h1:Hj29fXioLRe9oSnQ18SuDBiOcCbu8Qwxba6/5TMr4+Y=
+github.com/go-asmgen/asmgen v0.16.0 h1:fjrFWDDNxdSJvaTcN7uTIlawvrXe2PECdtScIZqX5bg=
+github.com/go-asmgen/asmgen v0.16.0/go.mod h1:FHWXZt1MrejOwSShl4tPYjI2GPEfNAJuXJUX6Z+ruyQ=

internal/kernels/sum_loong64.s

@@ -70,10 +70,10 @@ dloop:
 	XVMOVQ 64(R6), X10
 	XVMOVQ 96(R4), X7
 	XVMOVQ 96(R6), X11
-	WORD $0x0a202080 // xvfmadd.d $xr0, $xr4, $xr8, $xr0
-	WORD $0x0a20a4a1 // xvfmadd.d $xr1, $xr5, $xr9, $xr1
-	WORD $0x0a2128c2 // xvfmadd.d $xr2, $xr6, $xr10, $xr2
-	WORD $0x0a21ace3 // xvfmadd.d $xr3, $xr7, $xr11, $xr3
+	WORD $0x0a202080 // XVFMADDD X0, X8, X4, X0
+	WORD $0x0a20a4a1 // XVFMADDD X1, X9, X5, X1
+	WORD $0x0a2128c2 // XVFMADDD X2, X10, X6, X2
+	WORD $0x0a21ace3 // XVFMADDD X3, X11, X7, X3
 	ADDV $128, R4
 	ADDV $128, R6
 	ADDV $-16, R5
@@ -348,22 +348,22 @@ gloop:
 	XVMOVQ 40(R6), X23.V4
 	XVMOVQ 48(R6), X24.V4
 	XVMOVQ 56(R6), X25.V4
-	WORD $0x0a204240 // xvfmadd.d $xr0, $xr18, $xr16, $xr0
-	WORD $0x0a20c641 // xvfmadd.d $xr1, $xr18, $xr17, $xr1
-	WORD $0x0a214262 // xvfmadd.d $xr2, $xr19, $xr16, $xr2
-	WORD $0x0a21c663 // xvfmadd.d $xr3, $xr19, $xr17, $xr3
-	WORD $0x0a224284 // xvfmadd.d $xr4, $xr20, $xr16, $xr4
-	WORD $0x0a22c685 // xvfmadd.d $xr5, $xr20, $xr17, $xr5
-	WORD $0x0a2342a6 // xvfmadd.d $xr6, $xr21, $xr16, $xr6
-	WORD $0x0a23c6a7 // xvfmadd.d $xr7, $xr21, $xr17, $xr7
-	WORD $0x0a2442c8 // xvfmadd.d $xr8, $xr22, $xr16, $xr8
-	WORD $0x0a24c6c9 // xvfmadd.d $xr9, $xr22, $xr17, $xr9
-	WORD $0x0a2542ea // xvfmadd.d $xr10, $xr23, $xr16, $xr10
-	WORD $0x0a25c6eb // xvfmadd.d $xr11, $xr23, $xr17, $xr11
-	WORD $0x0a26430c // xvfmadd.d $xr12, $xr24, $xr16, $xr12
-	WORD $0x0a26c70d // xvfmadd.d $xr13, $xr24, $xr17, $xr13
-	WORD $0x0a27432e // xvfmadd.d $xr14, $xr25, $xr16, $xr14
-	WORD $0x0a27c72f // xvfmadd.d $xr15, $xr25, $xr17, $xr15
+	WORD $0x0a204240 // XVFMADDD X0, X16, X18, X0
+	WORD $0x0a20c641 // XVFMADDD X1, X17, X18, X1
+	WORD $0x0a214262 // XVFMADDD X2, X16, X19, X2
+	WORD $0x0a21c663 // XVFMADDD X3, X17, X19, X3
+	WORD $0x0a224284 // XVFMADDD X4, X16, X20, X4
+	WORD $0x0a22c685 // XVFMADDD X5, X17, X20, X5
+	WORD $0x0a2342a6 // XVFMADDD X6, X16, X21, X6
+	WORD $0x0a23c6a7 // XVFMADDD X7, X17, X21, X7
+	WORD $0x0a2442c8 // XVFMADDD X8, X16, X22, X8
+	WORD $0x0a24c6c9 // XVFMADDD X9, X17, X22, X9
+	WORD $0x0a2542ea // XVFMADDD X10, X16, X23, X10
+	WORD $0x0a25c6eb // XVFMADDD X11, X17, X23, X11
+	WORD $0x0a26430c // XVFMADDD X12, X16, X24, X12
+	WORD $0x0a26c70d // XVFMADDD X13, X17, X24, X13
+	WORD $0x0a27432e // XVFMADDD X14, X16, X25, X14
+	WORD $0x0a27c72f // XVFMADDD X15, X17, X25, X15
 	ADDV $64, R6
 	ADDV $64, R7
 	ADDV $-1, R5