pldi-writing-style
BusinessUse when revising a PLDI draft for the venue's voice — design insight before tool name, mechanisms instead of adjectives, a running example that carries the semantics, honest limitation statements, and prose that fits the single-column acmsmall journal format without padding toward the page cap.
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PLDI Writing Style
A PLDI paper is an engineering argument written for people who will try to break
it. The style that survives has three habits: it states the hard case before
the solution, it explains mechanisms rather than accumulating adjectives, and
it scopes every claim to exactly what the evaluation shows. Since the PACMPL
switch, the published object is a journal article in single-column acmsmall —
roomier lines than the old two-column look, but the same conference-grade cap on
text pages, so the format rewards clarity, not length.
The first-page contract
By the end of page one a reviewer should be able to answer four questions:
- What breaks today? The concrete program, workload, or proof burden that existing techniques mishandle — shown, ideally, as a small code example.
- What is the insight? One sentence a compiler writer could act on ("summarize modules by polymorphic escape signatures"), not a property wish ("fast and precise").
- Does it exist? The implementation substrate — which compiler, which IR, which proof assistant.
- What is the headline evidence? The number, with its suite and baseline attached, plus the paper's stated limit.
The worked rewrite in resources/worked-examples/01-introduction.md performs
this transformation end to end.
Style table: draft reflex → PLDI voice
| Draft reflex | PLDI voice |
|---|---|
| "Our novel framework significantly outperforms..." | "On suite S, T improves geomean runtime 1.17x over B at -O2 (30 runs, 95% CI)" |
| Tool name in the title, insight in §4 | Insight in the title and abstract; the tool demonstrates it |
| Related work as a guided museum tour | Each cited line ends with the delta from this paper (pldi-related-work) |
| Limitations paragraph as an apology in §8 | Restrictions stated where introduced, with their cost measured |
| Semantics by prose | Judgments, figures, and a running example threaded through §3-§5 |
| Padding toward the cap | Whitespace returned; reviewers never reward a full 20 pages for its own sake |
The running example discipline
Pick one small program that exhibits the hard case and reuse it everywhere: to motivate (§1), to walk the semantics (§3), to show the transformation (§4), and as the first row of the evaluation (§6). One example that a reviewer can trace end-to-end beats five disconnected snippets — and it is the cheapest insurance against the "I could not follow the analysis" review.
Claim ledger
Before the final pass, extract every claim sentence and demand its evidence address:
CLAIM -> EVIDENCE
"sound modulo first-class continuations" -> Thm 2 (§5) + restriction check (§4.4)
"majority of closures stack-allocated" -> Table 3, 11/14 programs
"under 3% compile-time overhead" -> Table 5, 30 timed builds, CI
"no whole-program pass required" -> §4.2 construction, artifact demo
Any claim without an address gets weakened or cut; any evidence without a claim
is a candidate for the supplement (pldi-supplementary).
Sentence-level habits
- Present tense for the system's behavior, past tense for the experiments run.
- Name concrete infrastructure ("an LLVM 18 pass", "a Rocq development of 12k lines") — abstraction here reads as evasion.
- Kill the "increasingly popular/important" opener; start at the hard case.
- Define notation once, in a figure, before first use; PLDI reviewers cite notation drift as a soundness smell, not a typo.
Output format
[First-page contract] hard case / insight sentence / substrate / headline number: each present?
[Running example] one program threaded through §1-§6? yes/no
[Claim ledger] n claims, n addressed, list the orphans
[Tone flags] adjectives standing in for mechanisms; apology-style limitations
[Cut list] <sections/paragraphs to compress before the cap does it for you>