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wire 2026-08-01
stories 11
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$ the-wire · showcase

GO COMPILER FIXES MIPS64 POINTER BUGS, SHRINKS BINARIES ON AMD64

By RepoJournal · Filed · About Go · Composed from the cited sources · methodology

Jonathan Amsterdam Tobias Klauser Brad Fitzpatrick Jorropo Daniel Morsing Josh Bleecher Snyder Chiman Jain
8 people shipped this
Jonathan Amsterdam @jba 2 cited Tobias Klauser @tklauser 1 cited Brad Fitzpatrick @bradfitz 1 cited Jorropo @Jorropo 1 cited Daniel Morsing @DanielMorsing 1 cited Josh Bleecher Snyder @josharian 1 cited Chiman Jain @chimanjain 1 cited David Chase @dr2chase 1 cited

Brad Fitzpatrick landed a stack object alignment fix that uncovers and fixes a latent mips64le pointer offset bug while accidentally making amd64 and arm64 binaries smaller.

The compiler received three critical fixes across pointer handling and architecture-specific edge cases [1] [2]. Brad's alignment change fixes mips64 under qemu-user and shrinks binaries on the mainstream platforms [1], while a follow-up from Jorropo addresses the bigger-than-32-bit pointer offsets that the alignment change exposed in mips64le [2]. In parallel, Josh Bleecher Snyder rewrote the canMergeLoad walk to track visited values instead of iterations, fixing load folding in unrolled crypto functions where the old approach gave up early [3]. On the IDE front, vscode-go bumped impl to v1.5.0 for better interface stub generation [4], and Daniel Morsing added an html debug flag to SSA compilation to let developers target specific packages without cache busting [5]. pkgsite's documentation signal system got smarter about interface methods and group comments: it now recognizes when methods implement documented interfaces and doesn't require redundant docs, and it accepts group-level comments on const and var declarations as documentation for the whole group [6] [7]. Benchmark metadata got a housekeeping rename from benchmarks-50 to benchmarks-100 for accuracy [8]. One doc comment cleanup shipped on syscall [9].

Action items

References

  1. [1] cmd/compile: use pointer-size alignment for stack object records ↗ golang/go
  2. [2] cmd/compile: fix mips64le bigger than 32bits pointer offsets ↗ golang/go
  3. [3] cmd/compile: track visited values, not iterations, in canMergeLoad ↗ golang/go
  4. [4] src/goInstallTools: update impl to v1.5.0 ↗ golang/vscode-go
  5. [5] cmd/compile/internal/ssa: add html debug flag ↗ golang/go
  6. [6] internal/frontend: doc signal: check local ifaces ↗ golang/pkgsite
  7. [7] internal/frontend: doc signal: accept group comments ↗ golang/pkgsite
  8. [8] cmd/bench: replace benchmarks-50 with benchmarks-100 ↗ golang/benchmarks
  9. [9] syscall: remove duplicate word from Errno godoc comment on plan9 ↗ golang/go

$ ls golang/reviews/ # the step-back reads

the week in review Go 1.27.1 lands as plan9 early export disabled the month in review Go compiler hardens binaries, crypto tightens SSH safety
Topics: Go Infrastructure Full archive → Weekly reviews →

Quick answers

What shipped in Go on August 1, 2026?
Brad Fitzpatrick landed a stack object alignment fix that uncovers and fixes a latent mips64le pointer offset bug while accidentally making amd64 and arm64 binaries smaller. In total, 11 commits landed.
Who contributed to Go on August 1, 2026?
8 developers shipped this update, including Tobias Klauser, Brad Fitzpatrick, Jorropo, Daniel Morsing, Josh Bleecher Snyder, Chiman Jain, David Chase, and Jonathan Amsterdam.
What were the notable Go updates?
cmd/compile: use pointer-size alignment for stack object records, cmd/compile: fix mips64le bigger than 32bits pointer offsets, and cmd/compile: track visited values, not iterations, in canMergeLoad.
♥

$ log @golang --recent

Salsa20 gets a loong64 SIMD path 1 shipped LoongArch crypto gets SIMD, RISC-V bit tests slim down 9 shipped Go's QUIC stack learns to tell on-path from off-path, and amd64 gets v2/v3/v4 CPU bits 19 shipped pkgsite drops ctxhttp, tour returns real 404s 7 shipped

$ log --all # elsewhere on the wire

@open-webui Open WebUI 0.11.4 ships a slim image 89% smaller FastAPI & Pydantic SQLModel narrows SQLAlchemy type handling in Field, drops dataclass_transform shim

$ ls showcases/

Rails Django Laravel Node.js Vercel Vue.js Kubernetes HashiCorp Arch Linux Linux Anthropic OpenAI

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