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pikuma_ps1/scripts/passes/static_analysis.lua
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2026-07-10 21:15:21 -04:00

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Lua

--- passes/static_analysis.lua — Per-atom static-analysis checks.
---
--- The 5 checks currently shipped:
--- 1. **GTE pipeline-fill** — every `gte_cmdw_*` invocation must be
--- preceded by the minimum number of `nop` words (per
--- `duffle.duffle.GTE_PIPELINE_LATENCY`) so the COP2 pipeline latency is
--- fully retired before the command issues.
--- 2. **mac_yield uniformity** — every atom body must contain exactly
--- one `mac_yield()` call (control transfer pattern).
--- 3. **ABI handoff** — every `atom_bind(Binds_X)` must reference a
--- `typedef Struct_(Binds_X) { ... }` declaration.
--- 4. **GPU port-store shape** — per-shape (`f3`/`f4`/`g4`/etc.) the
--- sum of `mac_format_X_color` + `mac_gte_store_X_*` +
--- `mac_insert_ot_tag_X` words must equal the GP0 cmd's expected
--- packet size.
--- 5. **per-atom cycle budget** — sum each atom body's instruction
--- latencies (per `duffle.duffle.INSTRUCTION_LATENCY`); report total.
---
--- The orchestrator (`ps1_meta.lua`) wires this module in via the
--- PASSES table:
--- `["static-analysis"] = { module = "passes.static_analysis",
--- kind = "validation",
--- deps = {"word-counts", "components"},
--- out = { { kind = "report",
--- path_template = "<out_root>/<basename>.static_analysis.txt" } } }`
---
--- **Conventions**: tabs (1/level), EmmyLua annotations, no regex,
--- Lua 5.3 compatible. See
--- `C:\projects\Pikuma\ps1-ai\conductor\code_styleguides\lua.md`.
-- ════════════════════════════════════════════════════════════════════════════
-- Module-scope requires + package.path setup
-- ════════════════════════════════════════════════════════════════════════════
-- `duffle.setup_package_path()` resolves `arg[0]` and prepends `scripts/`
-- (and `scripts/passes/`) to `package.path`, so `require("duffle")`
-- resolves regardless of CWD. See `duffle.lua` for the implementation.
-- Bootstrap: see `ps1_meta.lua` for the rationale.
dofile((arg[0]:match("(.*[/\\])") or "./") .. "duffle_paths.lua")
local duffle = require("duffle")
-- Domain tables (single source of truth in duffle.lua).
-- ════════════════════════════════════════════════════════════════════════════
-- Constants
-- ════════════════════════════════════════════════════════════════════════════
-- Atom declaration + component declaration identifiers.
local ATOM_DECL = "MipsAtom_"
local ATOM_COMP = "MipsAtomComp_"
local ATOM_COMP_PROC = "MipsAtomComp_Proc_"
-- Marker-call identifiers inside atom bodies.
local ATOM_LABEL = "atom_label"
local ATOM_OFFSET = "atom_offset"
local ATOM_INFO = "atom_info"
local ATOM_BIND = "atom_bind"
local ATOM_READS = "atom_reads"
local ATOM_WRITES = "atom_writes"
local ATOM_YIELD = "mac_yield"
local WORD_COUNT_PRAGMA = "WORD_COUNT("
-- ASCII byte values used in tokenization.
local BYTE_NEWLINE = 10
local BYTE_HASH = 35 -- '#'
local BYTE_OPEN_PAREN = 40
local BYTE_OPEN_BRACE = 123
local BYTE_OPEN_BRACK = 91
local BYTE_SEMI = 59
-- Per-check output paths (relative to ctx.out_root).
local OUTPUT_EXTENSION = ".static_analysis.txt"
-- ════════════════════════════════════════════════════════════════════════════
-- Type declarations
-- ════════════════════════════════════════════════════════════════════════════
--- @class SourceFile
--- @field path string -- absolute path to the source file
--- @field text string -- the full source text
--- @field dir string -- the directory containing the source
--- @field basename string -- filename without extension
--- @class PassCtx
--- @field sources SourceFile[]
--- @field metadata_path string
--- @field shared table
--- @field shared.word_counts table<string, integer>
--- @field out_root string
--- @field project_root string
--- @field upstream table<string, table>
--- @field flags table
--- @field dry_run boolean
--- @field verbose boolean
--- @class PassResult
--- @field outputs table[]
--- @field errors table[]
--- @field warnings table[]
--- @alias AtomName string -- lower_snake_case atom name
--- @alias MacroName string -- lower_snake_case macro identifier
--- @alias CheckName string -- "gte_pipeline_fill" | "mac_yield_uniformity" | "abi_handoff" | "gpu_port_store_shape" | "per_atom_cycle_budget"
--- @class AtomBody
--- @field line integer -- source line of the atom declaration
--- @field name AtomName -- atom name (e.g. "cube_g4_face")
--- @field body string -- the brace-delimited body (without the braces)
--- @field body_off integer -- char offset of body[1] in source
--- @field kind string -- "atom" | "comp_bare" | "comp_proc"
--- @class Token
--- @field tok string -- the raw token text (trimmed)
--- @field line integer -- source line of the token's start
--- @field ident string|nil -- the leading ident of the token (if any)
--- @field kind string -- "n_words" | "mac_yield" | "gte_cmdw" | "mac_format" | "mac_gte_store" | "mac_insert_ot_tag" | "atom_label" | "atom_offset" | "other"
--- @class Finding
--- @field line integer -- source line of the finding
--- @field atom AtomName -- the atom this finding is for (or "")
--- @field check CheckName -- the check identifier
--- @field kind string -- "error" | "warning" | "info"
--- @field msg string -- the finding message
--- @class AtomAnalysis
--- @field atom AtomBody
--- @field tokens Token[] -- the tokens in the atom body, annotated
--- @field findings Finding[] -- findings for this atom
--- @field total_cycles integer -- sum of token cycle costs (Phase 3)
-- ════════════════════════════════════════════════════════════════════════════
-- Source walkers
-- ════════════════════════════════════════════════════════════════════════════
--- Walk source-as-written, return a list of `{line, name, body,
--- body_off, kind}` for every:
--- `MipsAtom_(name) { body };` -> kind = "atom" (baked atom)
--- `MipsAtomComp_(name) { body };` -> kind = "comp_bare" (static-array component)
--- `MipsAtomComp_Proc_(name, { body })` -> kind = "comp_proc" (procedural component)
---
--- All three forms are recognized because the user explicitly uses
--- both bare components (e.g. `ac_gte_store_f3_post_rtpt`) and
--- procedural components (e.g. `ac_format_f3_color(r, g, b)`) inside
--- atom bodies. The two component forms generate macro equivalents
--- (in gen/duffle.macs.h) that atoms call via `mac_*` -- so the parent
--- atom body is what needs the GTE pipeline-fill + mac_yield checks.
--- The component bodies themselves don't need mac_yield (control
--- transfer is the parent atom's job) but they DO need pre-fill nops
--- before any gte_cmdw_X they contain.
---
--- Comments / strings inside `name` and `body` are tolerated; `body`
--- is the raw brace inner text (with surrounding whitespace, no
--- leading/trailing `{` `}`). `body_off` is the character offset of
--- `body[1]` in `source_text`, used to compute per-token line numbers
--- later.
local function find_atom_bodies(source_text)
local line_of = duffle.LineIndex(source_text)
local out = {}
local len = #source_text
local i = 1
while i <= len do
i = duffle.skip_ws_and_cmt(source_text, i); if i > len then break end
-- Skip preprocessor directives (#define / #include / #pragma /
-- etc). Otherwise the `#define MipsAtom_(sym) ...` definition
-- in lottes_tape.h gets matched as an atom named "sym" and
-- its `body` swallows the next real atom declaration via
-- duffle.scan_to_char("{", ...).
if source_text:sub(i, i) == "#" then
local j = i
while j <= len and source_text:byte(j) ~= 10 do j = j + 1 end
i = j + 1
else
local ident, after = duffle.read_ident(source_text, i)
if not ident then
i = i + 1
elseif ident == "MipsAtom_"
or ident == "MipsAtomComp_"
or ident == "MipsAtomComp_Proc_" then
-- Determine the kind from the exact ident (3 distinct macros,
-- each with its own kind).
local kind
if ident == "MipsAtom_" then kind = "atom"
elseif ident == "MipsAtomComp_" then kind = "comp_bare"
else kind = "comp_proc"
end
local open = duffle.skip_ws_and_cmt(source_text, after)
if source_text:sub(open, open) ~= "(" then
i = open + 1
else
local inner, after_paren = duffle.read_parens(source_text, open)
if kind == "comp_proc" then
-- MipsAtomComp_Proc_(sym, { body })
-- The body is inside the LAST `{ ... }` in the args
-- (the macro takes 2 args: sym name, then body in {}).
-- Find the last `{` in `inner`, then the matching `}`.
local last_open
for k = #inner, 1, -1 do
if inner:sub(k, k) == "{" then last_open = k; break end
end
if not last_open then
i = open + 1
else
-- Walk forward to find matching `}` honoring balanced
-- ()/[] and strings. We could call duffle.read_braces
-- from last_open+1, but read_braces expects to start at
-- the brace itself. Inline the walk for clarity.
local depth = 1
local j = last_open + 1
while j <= #inner and depth > 0 do
local c = inner:byte(j)
if c == 123 then
depth = depth + 1; j = j + 1
elseif c == 125 then
depth = depth - 1
if depth == 0 then break end
j = j + 1
elseif c == 40 then
local _, a = duffle.read_parens(inner, j); j = a
elseif c == 91 then
local _, a = duffle.read_brackets(inner, j); j = a
elseif c == 34 or c == 39 then
j = duffle.duffle.skip_str_or_cmt(inner, j) + 1
else
j = j + 1
end
end
if depth ~= 0 then
-- unmatched; bail
i = open + 1
else
-- First ident in `inner` is the comp name.
local name_match = inner:match("^%s*([%w_]+)")
local name = name_match or "?"
local body = inner:sub(last_open + 1, j - 1)
-- body_off in full source: position right after the
-- LAST `{` in `inner`, which sits at `open+1+last_open`
-- (open+1 = just inside the outer paren, +last_open
-- = at the `{`).
local body_off = open + 1 + last_open
out[#out + 1] = {
line = line_of(i),
name = name,
body = body,
body_off = body_off + 1,
kind = kind,
}
i = after_paren
end
end
else
-- MipsAtom_(sym) { body }; OR
-- MipsAtomComp_(sym) { body };
-- name is the first arg, body is the FIRST { ... } after
-- the paren.
local a = 1
while a <= #inner and inner:sub(a, a):match("[%s]") do a = a + 1 end
local b = a
while b <= #inner and inner:sub(b, b):match("[%w_]") do b = b + 1 end
local name = inner:sub(a, b - 1)
if name == "" then
i = open + 1
else
local brace = duffle.scan_to_char(source_text, "{", after_paren)
if brace then
local body, after_brace = duffle.read_braces(source_text, brace)
local body_off = brace + 1
out[#out + 1] = {
line = line_of(i),
name = name,
body = body,
body_off = body_off,
kind = kind,
}
i = after_brace
else
i = open + 1
end
end
end
end
else
i = after
end
end -- close the new preprocessor-skip else
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Body tokenizer (top-level comma splitter + per-token classification)
-- ════════════════════════════════════════════════════════════════════════════
--- Build a map: `body_relative_char_offset` -> `body_relative_line`.
--- Used by the checks to convert per-token offsets in the body to line
--- numbers relative to the start of `body`. The atom's source-line of
--- the body-start is added by the caller.
---
--- Simple line-counting: count `\n` chars from offset 1 up to the
--- offset; that count + 1 is the line number (1-based).
local function build_body_line_index(body)
local index = {}
local len = #body
local newline_count = 0
for i = 1, len do
if i > 1 then
index[i] = newline_count + 1 -- line of `i` relative to body
end
if body:byte(i) == 10 then -- '\n'
newline_count = newline_count + 1
end
end
-- Offsets beyond the body still resolve to the final line
index[len + 1] = newline_count + 1
return index
end
--- Count of COP2-nop words contributed by a single top-level token.
-- `nop` -> 1
-- `nop2` -> 2 (i.e. `nop, nop` baked into one asm arg)
-- `nop,` / `nop2,` -> same as above; strip trailing comma defensively
-- anything else -> 0
--
-- (Branch-delay-slot nops like `branch_*(..., nop)` are tokenized
-- separately by split_top_level_commas: the branch arg ends before
-- the trailing comma, and `nop` becomes its own token. So no special
-- handling is needed here.)
local function nop_word_count(token)
local s = duffle.trim(token)
-- strip trailing comma(s) (defensive against raw text via, but our
-- tokenize_body already strips them; this is a safety net)
s = s:gsub(",$", "")
s = duffle.trim(s)
if s == "nop" then return 1 end
if s == "nop2" then return 2 end
return 0
end
--- Tokenize the body inner-text into a flat list of `(token, body_rel_offset)`
--- pairs (nested parens/braces/brackets are honored; comments and strings
--- are skipped). `body_rel_offset` is the char offset within `body` of the
--- start of the token — callers add it to the atom's `body_off` to get
--- an absolute source position for line tracking.
local function tokenize_body(body)
local out = {}
local len = #body
local rel = 1
while rel <= len do
-- Find next non-whitespace, non-comment start
local ws_end = duffle.skip_ws_and_cmt(body, rel)
if ws_end > rel then
rel = ws_end
end
if rel > len then break end
-- Find comma/newline/semicolon after this token. Read balanced
-- groups so commas inside parens/braces/brackets aren't treated
-- as separators. Comments / strings are skipped.
local i = rel
while i <= len do
local c = body:byte(i)
if c == 44 then break end -- ','
if c == 10 then break end -- '\n'
if c == 59 then break end -- ';'
if c == 40 then -- '('
local _, a = duffle.read_parens(body, i); i = a
elseif c == 123 then -- '{'
local _, a = duffle.read_braces(body, i); i = a
elseif c == 91 then -- '['
local _, a = duffle.read_brackets(body, i); i = a
elseif c == 34 or c == 39 then -- '"' or '\''
i = duffle.duffle.skip_str_or_cmt(body, i) + 1
else
i = i + 1
end
end
-- Extract token [rel .. i-1]
local tok = duffle.trim(body:sub(rel, i - 1))
if tok ~= "" then
out[#out + 1] = { tok = tok, rel = rel }
end
-- Move past the separator
if i <= len then
i = i + 1
-- Also skip whitespace before next token
local w = duffle.skip_ws_and_cmt(body, i)
if w > i then i = w end
end
rel = i
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Check #1: GTE pipeline-fill
-- ════════════════════════════════════════════════════════════════════════════
--- Walk the token list. Whenever we hit a `gte_cmdw_<X>` token, count
--- consecutive nop words starting at the next token. If count < the
--- minimum declared in `duffle.GTE_PIPELINE_LATENCY[X]`, record a finding.
---
--- Aliases (`gte_cmdw_rotate_translate_perspective_single` etc.) are
--- resolved against the lookup table directly; if a macro name is not
--- in the table, emit a soft warning (the user might have added a new
--- gte_cmdw_* but not updated duffle.lua).
local function check_gte_pipeline_fill(atoms, findings, line_of)
-- Walk the token list. Whenever we hit a `gte_cmdw_<X>` token,
-- count consecutive `nop` words IMMEDIATELY PRECEDING it (the
-- source-level `nop2, gte_cmdw_X` idiom provides the pre-pipeline
-- fill that gte.h's wrapper functions provide internally). If
-- count < `duffle.GTE_PIPELINE_LATENCY[X]`, record a finding.
--
-- We count nops going backwards from the cmdw token, stopping at
-- the first non-nop token. Tokens like `mem_share` or `port_write`
-- (any non-nop) break the count. `gte_mv_to_data_r` (writes to
-- C2_DR registers) are non-nops in this sense -- they count as
-- "previous GTE state" but don't themselves count as pipeline
-- fill.
for _, a in ipairs(atoms) do
local tokens = tokenize_body(a.body)
local line_in_body = build_body_line_index(a.body)
local tn = #tokens
local ti = 1
while ti <= tn do
local tok = tokens[ti].tok
local cmdw_full = tok:match("^(gte_cmdw_[%w_]+)%s*[,%)]")
or tok:match("^(gte_cmdw_[%w_]+)%s*$")
if cmdw_full then
local variant = cmdw_full:match("^gte_cmdw_(.+)$")
local need = duffle.GTE_PIPELINE_LATENCY[cmdw_full]
if need == nil then
-- alias or new gte_cmdw_<X> not yet in latency table
local line = a.line + line_in_body[tokens[ti].rel]
findings[#findings + 1] = {
atom = a.name,
line = line,
check = "gte_pipeline_fill",
kind = "warning",
msg = string.format(
"%s at line %d uses `gte_cmdw_%s` but that macro is not in duffle.duffle.GTE_PIPELINE_LATENCY -- add a min_nops entry",
a.name, line, variant),
}
ti = ti + 1
elseif need > 0 then
-- Count consecutive nops immediately BEFORE the cmdw
-- token. We walk tokens[ti - n] backwards, accumulating
-- nop_word_count, stopping at the first non-nop.
local have = 0
local where_ti = ti - 1
while where_ti >= 1 do
local n = nop_word_count(tokens[where_ti].tok)
if n == 0 then break end
have = have + n
where_ti = where_ti - 1
end
if have < need then
local line = a.line + line_in_body[tokens[ti].rel]
findings[#findings + 1] = {
atom = a.name,
line = line,
check = "gte_pipeline_fill",
kind = "error",
msg = string.format(
"%s at line %d needs %d nop word%s immediately BEFORE `gte_cmdw_%s`; only %d found",
a.name, line, need, need == 1 and "" or "s", variant, have),
}
end
ti = ti + 1
else
ti = ti + 1
end
else
ti = ti + 1
end
end
end
end
-- ════════════════════════════════════════════════════════════════════════════
-- Check #2: mac_yield uniformity
-- ════════════════════════════════════════════════════════════════════════════
--- Every atom body must contain exactly one `mac_yield()` call and it
--- must be the LAST top-level token in the body (so the tape runtime
--- can pick up cleanly at the next atom's bound registers).
---
--- Empty bodies are not currently flagged — runtime infrastructure
--- atoms like `MipsAtom_(yield) { mac_yield() }` and `MipsAtom_(tape_exit)
--- { jump_reg(rret_addr), nop }` are valid as-is; mac_yield at the end
--- is the contract.
local function check_mac_yield_uniformity(atoms, findings)
-- Per-kind semantics:
-- MipsAtom_ (baked atom): exactly 1 mac_yield at the end of
-- the body. Control transfer is the atom's job.
-- MipsAtomComp_ (bare static-array component): ZERO mac_yield.
-- The component is invoked from inside an atom
-- body; the parent atom does the yield.
-- MipsAtomComp_Proc_ (procedural component): ZERO mac_yield.
-- Same reasoning -- it's a function returning
-- a MipsAtom slice, invoked from a parent atom.
--
-- The GTE pipeline-fill check applies to all 3 kinds (see
-- check_gte_pipeline_fill). Only the mac_yield rule branches on kind.
for _, a in ipairs(atoms) do
local tokens = tokenize_body(a.body)
local line_in_body = build_body_line_index(a.body)
local count = 0
local last_idx = 0
for i, t in ipairs(tokens) do
local tok = t.tok
-- Match `mac_yield(...)` or just `mac_yield`. The bareword
-- variant is rare in modern style but tolerated.
if tok:match("^mac_yield%s*%(") or tok == "mac_yield" then
count = count + 1
last_idx = i
end
end
local function line_for(idx)
return a.line + line_in_body[tokens[idx].rel]
end
if a.kind == "atom" then
-- Baked atom: exactly 1 yield at the end.
if count == 0 then
findings[#findings + 1] = {
atom = a.name,
line = a.line,
check = "mac_yield_uniformity",
kind = "warning",
msg = string.format(
"%s at line %d has no `mac_yield()`; every atom must hand control to the next via mac_yield at end",
a.name, a.line),
}
elseif count > 1 then
findings[#findings + 1] = {
atom = a.name,
line = line_for(last_idx),
check = "mac_yield_uniformity",
kind = "warning",
msg = string.format(
"%s at line %d has %d `mac_yield()` calls; exactly 1 is allowed",
a.name, line_for(last_idx), count),
}
elseif last_idx < #tokens then
-- 1 call, but not the last token. We DON'T fail if the
-- post-token is just `nop` or `nop2` or a branch with `, nop`
-- delay slot -- it's the standard "yield, then BD nop" idiom.
local post_non_nop = false
for j = last_idx + 1, #tokens do
local t = tokens[j].tok
if t ~= "" and t ~= "nop" and t ~= "nop2"
and not t:match("%,%s*nop%)%s*$") then
post_non_nop = true
break
end
end
if post_non_nop then
findings[#findings + 1] = {
atom = a.name,
line = line_for(last_idx),
check = "mac_yield_uniformity",
kind = "warning",
msg = string.format(
"%s at line %d has `mac_yield()` at token %d/%d; the yield must be the LAST non-nop token in the body",
a.name, line_for(last_idx), last_idx, #tokens),
}
end
end
else
-- Component (comp_bare or comp_proc): ZERO yields. The parent
-- atom does the yield. A yield inside a component would either
-- be dead code (bare) or prematurely terminate the function
-- (proc). Both are bugs.
if count > 0 then
findings[#findings + 1] = {
atom = a.name,
line = line_for(last_idx),
check = "mac_yield_uniformity",
kind = "warning",
msg = string.format(
"%s at line %d is a %s component but has %d `mac_yield()` call(s); components must not yield (the parent atom does)",
a.name, line_for(last_idx), a.kind, count),
}
end
end
end
end
-- ════════════════════════════════════════════════════════════════════════════
-- Source walkers: Binds_* structs + per-atom atom_info
-- ════════════════════════════════════════════════════════════════════════════
--- Walk source-as-written, return a list of `{line, name, fields, bytes}`
--- for every `typedef Struct_(Binds_X) { ... };` declaration. Only U4
--- fields are tracked (Binds_* are always word arrays in this codebase --
--- pointers stored as U4, indices as U4, etc.). Mirrors annotation.lua ::
--- find_binds_structs but is independent (no shared cross-pass state for
--- static-analysis; each pass re-walks source).
local function find_binds_structs(source_text)
local line_of = duffle.LineIndex(source_text)
local out = {}
local len = #source_text
local i = 1
while i <= len do
i = duffle.skip_ws_and_cmt(source_text, i); if i > len then break end
if source_text:sub(i, i) == "#" then
local j = i
while j <= len and source_text:byte(j) ~= 10 do j = j + 1 end
i = j + 1
else
local ident, after = duffle.read_ident(source_text, i)
if not ident then
i = i + 1
elseif ident == "typedef" then
local j = duffle.skip_ws_and_cmt(source_text, after)
local id2, after2 = duffle.read_ident(source_text, j)
if id2 ~= "Struct_" then
i = after2 or (j + 1)
else
local open = duffle.skip_ws_and_cmt(source_text, after2)
if source_text:sub(open, open) ~= "(" then
i = open + 1
else
local inner, after_paren = duffle.read_parens(source_text, open)
local name = duffle.trim(inner)
local brace = duffle.scan_to_char(source_text, "{", after_paren)
if not brace then
i = open + 1
else
local body, after_brace = duffle.read_braces(source_text, brace)
local fields = {}
local byte_off = 0
local k = 1
while k <= #body do
k = duffle.skip_ws_and_cmt(body, k); if k > #body then break end
local tid, tafter = duffle.read_ident(body, k)
if not tid then
k = k + 1
elseif tid == "U4" then
local fid, fafter = duffle.read_ident(body, duffle.skip_ws_and_cmt(body, tafter))
if fid then
fields[#fields + 1] = { name = fid, offset = byte_off }
byte_off = byte_off + 4
end
k = fafter or (tafter + 1)
else
k = tafter + 1
end
end
if name:sub(1, 6) == "Binds_" then
out[#out + 1] = { line = line_of(i), name = name, fields = fields, bytes = byte_off }
end
i = after_brace
end
end
end
else
i = after
end
end
end
return out
end
--- For every `MipsAtom_(name)` followed by `atom_info(...)`, parse the
--- atom_info's `atom_bind(Binds_X)`, `atom_reads(...)`, and
--- `atom_writes(...)` sub-calls. Returns a list of
--- `{atom_name, binds, reads, writes, info_line}` for use by
--- check_abi_handoff.
local function find_atom_info(source_text)
local line_of = duffle.LineIndex(source_text)
local out = {}
local len = #source_text
local i = 1
while i <= len do
i = duffle.skip_ws_and_cmt(source_text, i); if i > len then break end
if source_text:sub(i, i) == "#" then
local j = i
while j <= len and source_text:byte(j) ~= 10 do j = j + 1 end
i = j + 1
else
local ident, after = duffle.read_ident(source_text, i)
if not ident then
i = i + 1
elseif ident == "MipsAtom_" then
local open = duffle.skip_ws_and_cmt(source_text, after)
if source_text:sub(open, open) ~= "(" then
i = open + 1
else
local inner, after_paren = duffle.read_parens(source_text, open)
local a = 1
while a <= #inner and inner:sub(a, a):match("[%s]") do a = a + 1 end
local b = a
while b <= #inner and inner:sub(b, b):match("[%w_]") do b = b + 1 end
local atom_name = inner:sub(a, b - 1)
local lookahead = duffle.skip_ws_and_cmt(source_text, after_paren)
local look_ident, look_after = duffle.read_ident(source_text, lookahead)
if look_ident == "atom_info" then
local info_open = duffle.skip_ws_and_cmt(source_text, look_after)
if source_text:sub(info_open, info_open) == "(" then
local info_inner, info_after = duffle.read_parens(source_text, info_open)
local binds, reads, writes = nil, nil, nil
local j = 1
while j <= #info_inner do
j = duffle.skip_ws_and_cmt(info_inner, j); if j > #info_inner then break end
local sub_ident, sub_after = duffle.read_ident(info_inner, j)
if not sub_ident then
j = j + 1
elseif sub_ident == "atom_bind" then
local sub_open = duffle.skip_ws_and_cmt(info_inner, sub_after)
if info_inner:sub(sub_open, sub_open) == "(" then
local sub_inner, sub_after2 = duffle.read_parens(info_inner, sub_open)
binds = duffle.trim(sub_inner)
j = sub_after2
else
j = sub_open + 1
end
elseif sub_ident == "atom_reads" or sub_ident == "atom_writes" then
local kind = sub_ident
local sub_open = duffle.skip_ws_and_cmt(info_inner, sub_after)
if info_inner:sub(sub_open, sub_open) == "(" then
local sub_inner, sub_after2 = duffle.read_parens(info_inner, sub_open)
local regs = {}
local p = 1
while p <= #sub_inner do
p = duffle.skip_ws_and_cmt(sub_inner, p); if p > #sub_inner then break end
local pid, pa = duffle.read_ident(sub_inner, p)
if pid then
regs[#regs + 1] = duffle.trim(pid)
p = pa
else
p = p + 1
end
if p > #sub_inner then break end
if sub_inner:sub(p, p) == "," then p = p + 1 end
end
if kind == "atom_reads" then reads = regs else writes = regs end
j = sub_after2
else
j = sub_open + 1
end
else
j = sub_after
end
end
out[#out + 1] = {
atom_name = atom_name, binds = binds,
reads = reads or {}, writes = writes or {},
info_line = line_of(lookahead),
}
i = info_after
else
i = info_open + 1
end
else
i = after_paren
end
end
else
i = after
end
end
end
return out
end
-- ════════════════════════════════════════════════════════════════════════════
-- Check #3: ABI handoff discipline
-- ════════════════════════════════════════════════════════════════════════════
--- For every atom with `atom_bind(Binds_X)`, verify the atom body loads
--- every field of `Binds_X` from R_TapePtr (in declaration order) and
--- advances R_TapePtr by S_(Binds_X) at the end. Mismatches are errors.
--- Rules:
--- 1. Body MUST contain one `load_word(R_*, R_TapePtr, O_(Binds_X, field))`
--- per field of Binds_X. Missing field = error.
--- 2. Body's load_words to R_TapePtr at O_(Binds_X, field) MUST appear
--- in the same order as the fields are declared in Binds_X.
--- Out-of-order load = error.
--- 3. Body MUST contain an `add_ui_self(R_TapePtr, S_(Binds_X))` (or
--- equivalent advance by the struct's byte count). Missing = error.
--- 4. atom_bind(Binds_X) where Binds_X doesn't exist = error.
local function check_abi_handoff(atoms, atom_infos, binds_index, findings)
local info_by_atom = {}
for _, info in ipairs(atom_infos) do
info_by_atom[info.atom_name] = info
end
for _, a in ipairs(atoms) do
local info = info_by_atom[a.name]
if info and info.binds then
local binds_name = info.binds
local binds = binds_index[binds_name]
if not binds then
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "abi_handoff", kind = "error",
msg = string.format("%s at line %d has `atom_bind(%s)` but no `typedef Struct_(%s)` declaration found in source",
a.name, a.line, binds_name, binds_name),
}
else
local tokens = tokenize_body(a.body)
local line_in_body = build_body_line_index(a.body)
local expected_field_seq = {}
for _, f in ipairs(binds.fields) do expected_field_seq[#expected_field_seq + 1] = f.name end
local found_field_seq = {}
local found_field_set = {}
local found_advance = false
local bind_re = "O_%(" .. binds_name .. ",%s*([%w_]+)%s*%)"
for _, t in ipairs(tokens) do
local tok = t.tok
if tok:match("^load_word%s*%(") then
if tok:find("R_TapePtr", 1, true) and tok:find("O_(" .. binds_name .. ",", 1, true) then
local field = tok:match(bind_re)
if field then
found_field_seq[#found_field_seq + 1] = field
found_field_set[field] = true
else
local body_line = a.line + line_in_body[t.rel]
findings[#findings + 1] = {
atom = a.name, line = body_line,
check = "abi_handoff", kind = "error",
msg = string.format("%s at line %d has load_word(R_TapePtr, O_(%s, <non-ident>)); expected O_(%s, <field>)",
a.name, body_line, binds_name, binds_name),
}
end
end
end
if tok:find("R_TapePtr", 1, true)
and tok:find("S_(" .. binds_name .. ")", 1, true) then
found_advance = true
end
end
for _, fname in ipairs(expected_field_seq) do
if not found_field_set[fname] then
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "abi_handoff", kind = "error",
msg = string.format("%s at line %d binds %s but never loads field `%s` from R_TapePtr (expected O_(%s, %s))",
a.name, a.line, binds_name, fname, binds_name, fname),
}
end
end
if #found_field_seq == #expected_field_seq then
for k = 1, #expected_field_seq do
if found_field_seq[k] ~= expected_field_seq[k] then
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "abi_handoff", kind = "error",
msg = string.format("%s at line %d loads fields in wrong order: got [%s], expected [%s]",
a.name, a.line,
table.concat(found_field_seq, ", "),
table.concat(expected_field_seq, ", ")),
}
break
end
end
end
if not found_advance then
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "abi_handoff", kind = "error",
msg = string.format("%s at line %d binds %s but never advances R_TapePtr by S_(%s) (= %d bytes / %d words)",
a.name, a.line, binds_name, binds_name, binds.bytes, binds.bytes / 4),
}
end
end
end
end
end
-- ════════════════════════════════════════════════════════════════════════════
-- Check #4: GPU port-store shape
-- ════════════════════════════════════════════════════════════════════════════
--- For every baked atom body, detect which GP0 primitive it's emitting
--- (first `mac_format_<shape>_color` call). Sum contributions from
--- `mac_format_X_color` + `mac_gte_store_X_post_*` + `mac_insert_ot_tag_X`.
--- Compare to duffle.GP0_CMD_SIZE[cmd_byte]. Mismatch = error.
---
--- Soft behavior (warnings):
--- - Atoms emitting a primitive via raw `store_word(R_PrimCursor, ...)`
--- (no `mac_format_X_color` call) emit a "manual packet assembly"
--- advisory. Cannot auto-validate.
--- - Atoms containing a `mac_<name>(...)` call whose name is not in
--- duffle.GP0_MACRO_CONTRIB emit a "new macro; update duffle.GP0_MACRO_CONTRIB"
--- advisory.
---
--- Applies only to `kind = "atom"` (baked atoms). Components don't
--- emit full primitives.
local function check_gpu_portstore_shape(atoms, findings)
for _, a in ipairs(atoms) do
if a.kind == "atom" then
local tokens = tokenize_body(a.body)
local line_in_body = build_body_line_index(a.body)
local cmd_byte = nil
local cmd_line = nil
local contrib = 0
local saw_format = false
local saw_prim_write = false
for _, t in ipairs(tokens) do
local tok = t.tok
-- Match `mac_format_<shape>_color(...)` and strip `_color`
-- to get the bare shape suffix (f3 / g4 / etc).
local shape = tok:match("^mac_format_([%w_]+)_color%s*%(")
or tok:match("^mac_format_([%w_]+)_color%s*$")
if shape and duffle.GP0_CMD_BY_SHAPE[shape] then
if not cmd_byte then
cmd_byte = duffle.GP0_CMD_BY_SHAPE[shape]
cmd_line = a.line + line_in_body[t.rel]
end
saw_format = true
local contrib_key = "mac_format_" .. shape .. "_color"
local n = duffle.GP0_MACRO_CONTRIB[contrib_key]
if n then contrib = contrib + n end
end
local gte_store = tok:match("^mac_gte_store_[%w_]+")
if gte_store then
local n = duffle.GP0_MACRO_CONTRIB[gte_store]
if n then contrib = contrib + n end
end
local ot_tag = tok:match("^mac_insert_ot_tag_([%w_]+)")
if ot_tag then
local n = duffle.GP0_MACRO_CONTRIB["mac_insert_ot_tag_" .. ot_tag]
if n then contrib = contrib + n end
end
if tok:match("^store_word%s*%(") and tok:find("R_PrimCursor", 1, true) then
saw_prim_write = true
end
end
if not cmd_byte then
if saw_prim_write and not saw_format then
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "gpu_portstore_shape", kind = "warning",
msg = string.format("%s at line %d writes to R_PrimCursor via raw store_word(...) but uses no `mac_format_*_color`; the cmd byte + word count cannot be auto-validated. Consider migrating to `mac_format_X_color` + `mac_gte_store_X_post_*` + `mac_insert_ot_tag_X`.",
a.name, a.line),
}
end
else
local expected = duffle.GP0_CMD_SIZE[cmd_byte]
if contrib ~= expected then
findings[#findings + 1] = {
atom = a.name, line = cmd_line or a.line,
check = "gpu_portstore_shape", kind = "error",
msg = string.format("%s at line %d emits GP0 0x%02X with %d prim word(s); expected %d (cmd 0x%02X total = %d)",
a.name, cmd_line or a.line, cmd_byte, contrib, expected, cmd_byte, expected),
}
end
end
end
end
end
-- ════════════════════════════════════════════════════════════════════════════
-- Check #5: per-atom cycle budget (Phase 3)
-- ════════════════════════════════════════════════════════════════════════════
--- Compute the cycle cost of one token. The token is a string like
--- `add_ui(R_T0, R_T1, 4)` or `nop2` or `gte_cmdw_rtpt`. Returns:
--- cycles - integer cycle cost (from duffle.INSTRUCTION_LATENCY, or
--- duffle.UNKNOWN_INSTRUCTION_CYCLES if not in the table)
--- macro_name - the bare ident (e.g. `add_ui`, `gte_cmdw_rtpt`,
--- `nop2`, `mac_yield`)
--- unknown - true iff the macro wasn't in duffle.INSTRUCTION_LATENCY
--- The function strips trailing `()` from function-call style macros
--- so `mac_yield()` and `mac_yield` resolve identically.
local function token_cycles(tok)
-- Extract the leading ident. Tolerate `(...)` args.
local ident = tok:match("^([%w_]+)")
if not ident then return duffle.UNKNOWN_INSTRUCTION_CYCLES, "?", true end
local cost = duffle.INSTRUCTION_LATENCY[ident]
if cost == nil then
return duffle.UNKNOWN_INSTRUCTION_CYCLES, ident, true
end
return cost, ident, false
end
--- Find every `atom_label(name)` token in the token list and return a
--- map `label_name -> token_idx`. Labels are 0-cost markers; the path
--- walker uses them as branch targets.
local function find_atom_labels(tokens)
local labels = {}
for i, t in ipairs(tokens) do
local name = t.tok:match("^atom_label%s*%(%s*([%w_]+)%s*%)")
if name then labels[name] = i end
end
return labels
end
--- Find every `branch_*(...)` token in the token list and return a map
--- `token_idx -> label_name|false`. If the branch's args contain an
--- `atom_offset(F, label)` call, the label name is recorded; otherwise
--- the branch's target is unknown (likely a literal offset) and we
--- record `false` as a sentinel. The CFG walker checks KEY PRESENCE
--- (via `is_branch(i)`) to decide whether a token is a branch; it
--- checks the value to decide whether the taken-path target is known.
--- (We can't use `nil` for the unknown-target case because `targets[i] = nil`
--- REMOVES the key from the Lua table, which would make `is_branch(i)`
--- return false for both "not a branch" and "branch with unknown target".)
local function find_branch_targets(tokens)
local targets = {}
for i, t in ipairs(tokens) do
if t.tok:match("^branch_[%w_]+%s*%(") then
-- branch_<cond>(rs, atom_offset(F, label)) or
-- branch_<cond>(rs, rt, atom_offset(F, label))
-- atom_offset's arg list is (flag, name); we want the name.
local label = t.tok:match("atom_offset%s*%([^,]+,%s*([%w_]+)%s*%)")
targets[i] = label or false -- `false` = known branch, unknown target
end
end
return targets
end
--- Walk all paths through an atom body and return per-path cycle sums.
--- Builds a tiny CFG: each token has a "next" pointer; branches have two
--- (fall-through + taken). The BD-slot nop after a branch is absorbed
--- into the branch's cost (MIPS-accurate: BD slot always runs), and is
--- SKIPPED when continuing down the fall-through path (otherwise we'd
--- double-count it).
---
--- Returns:
--- cycles_min - shortest path through the body (sum of token costs)
--- cycles_max - longest path through the body
--- branches - number of branches in the body
--- paths - number of distinct paths reached (terminated at
--- mac_yield or end-of-body)
--- has_loops - true iff a path re-entered a token it had visited
--- (warning; loop bodies aren't supported)
--- unknown_macros - list of unique macro names not in duffle.INSTRUCTION_LATENCY
--- cycles_full - sum of ALL token costs (the previous "best case"
--- value; included for backward-compat; double-counts
--- the BD-slot nop relative to cycles_min/max)
local function analyze_atom_paths(atom)
local tokens = tokenize_body(atom.body)
local labels = find_atom_labels(tokens)
local branches = find_branch_targets(tokens)
-- Pre-compute per-token cycle costs and identify terminators.
local n = #tokens
local costs = {}
local unknown_set = {}
for i, t in ipairs(tokens) do
local c, _, unknown = token_cycles(t.tok)
costs[i] = c
if unknown then
unknown_set[t.tok:match("^([%w_]+)") or "?"] = true
end
end
-- A token is a terminator if it's `mac_yield` or `mac_yield(...)`.
-- The yield transfers control; we don't count its cost (the next
-- atom's prologue absorbs it).
local function is_terminator(i)
local tok = tokens[i].tok
return tok == "mac_yield" or tok:match("^mac_yield%s*%(")
end
-- CFG successor function. Returns a list of next token indices for
-- the given position. Branch tokens produce 2 successors (fall-through
-- + taken); normal tokens produce 1 (next); terminators produce 0.
-- BD-slot absorption: a branch at i skips i+1 (the BD slot) in its
-- fall-through path; the BD slot's cost is added to the branch's
-- own cost instead (so it's counted once).
--
-- A token is a "branch" if its index is a KEY in the `branches`
-- map (regardless of whether the value is nil — a branch with
-- nil target means "literal offset, taken path is unknown").
-- We check key-presence via `branches[i] ~= nil` because
-- `branches[i]` returns nil for both "absent" AND "present with
-- nil value" — distinguishing them requires the key check.
local function is_branch(i)
local v = branches[i]
if v == nil then return false end
-- v is non-nil: either a string (atom_offset target) or false
-- (literal offset, no target). Both indicate a branch.
return true
end
local function successors(i)
local tok = tokens[i].tok
if is_terminator(i) then
return {}, i -- empty list; term = i signals "path ends here"
end
if is_branch(i) then
local label = branches[i] -- may be false for literal-offset branches
local succ = {}
-- Fall-through: skip the BD slot (i+1). Use i+2.
if i + 2 <= n then
succ[#succ + 1] = i + 2
end
-- Taken: only if the branch has a known atom_offset target.
if label then
local label_pos = labels[label]
if label_pos and label_pos + 1 <= n then
succ[#succ + 1] = label_pos + 1
end
end
-- For literal-offset branches (label == false), the taken
-- path would jump to a non-tracked address; conservatively
-- omit. Return (succ, nil) -- the second value is the
-- terminator marker (nil = not a terminator).
return succ, nil
end
-- Normal token: just the next one
if i + 1 <= n then
return { i + 1 }, nil
end
return {}, nil
end
-- DFS through all paths. Track the current cycle sum, a visited set
-- scoped to the current path (to detect loops), and a count of paths.
-- Cap recursion at MAX_PATHS to prevent runaway exploration on
-- pathological bodies.
local MAX_PATHS = 64
local cycles_min = math.huge
local cycles_max = -1
local path_count = 0
local has_loops = false
local function dfs(i, acc, visited)
if path_count >= MAX_PATHS then return end
if _G._DEBUG_DFS then
io.stderr:write(string.format("dfs(i=%d, acc=%d)\n", i, acc))
end
if visited[i] then
has_loops = true
if _G._DEBUG_DFS_LOOP then
io.stderr:write(string.format(" -> LOOP at i=%d (tok=%s) acc=%d\n",
i, tokens[i].tok, acc))
end
return
end
-- Add this token's cost. For a branch, ADD the BD-slot cost too
-- (and skip the BD slot in the successor list — already done in
-- `successors` above for fall-through; for taken path the BD
-- slot was at i+1 which is now skipped entirely).
local cost = costs[i]
if is_branch(i) and i + 1 <= n then
cost = cost + costs[i + 1]
end
local new_acc = acc + cost
local succ, term = successors(i)
if term then
-- Terminator: record the path's cycle sum. We do NOT add
-- the terminator token to `visited` -- a path ends here, so
-- a different path that ALSO reaches this terminator is a
-- legitimate new path (not a loop). If we marked it
-- visited, subsequent paths that reach the same terminator
-- would be incorrectly flagged as loops.
path_count = path_count + 1
if new_acc < cycles_min then cycles_min = new_acc end
if new_acc > cycles_max then cycles_max = new_acc end
return
end
visited[i] = true
for _, next_i in ipairs(succ) do
dfs(next_i, new_acc, visited)
end
visited[i] = nil
end
if n >= 1 then dfs(1, 0, {}) end
-- cycles_full: sum of every token's cost (the previous model; useful
-- for comparing against the path-aware min/max).
local cycles_full = 0
for i = 1, n do cycles_full = cycles_full + costs[i] end
-- If no paths were recorded (e.g. atom body is empty), cycles_min/max
-- default to 0 (atom costs nothing). cycles_full is 0 too in that case.
if cycles_min == math.huge then cycles_min = 0 end
if cycles_max == -1 then cycles_max = 0 end
local unknown_list = {}
for k in pairs(unknown_set) do unknown_list[#unknown_list + 1] = k end
table.sort(unknown_list)
-- branch_count: number of `branch_*(...)` tokens. (More useful than
-- `#branches` which is the size of the targets map and would be equal
-- to #branches anyway, but the rename is clearer.)
local branch_count = 0
for _ in pairs(branches) do branch_count = branch_count + 1 end
return {
cycles_min = cycles_min,
cycles_max = cycles_max,
cycles_full = cycles_full,
branches = branch_count,
paths = path_count,
has_loops = has_loops,
unknown_macros = unknown_list,
}
end
--- Backward-compat wrapper: returns total cycle count (the previous
--- "best case" value, which over-counts BD-slot nops) + unknown macro
--- list. New code should call `analyze_atom_paths(atom)` instead.
local function count_atom_cycles(atom)
local tokens = tokenize_body(atom.body)
local total = 0
local unknown_set = {}
for _, t in ipairs(tokens) do
local c, _, unknown = token_cycles(t.tok)
total = total + c
if unknown then
unknown_set[t.tok:match("^([%w_]+)") or "?"] = true
end
end
local unknown_list = {}
for k in pairs(unknown_set) do unknown_list[#unknown_list + 1] = k end
return total, unknown_list
end
--- Per-source check that emits one finding per unknown macro seen
--- (deduplicated across atoms so the warning section doesn't get
--- spammed with N copies of "macro X not in duffle.INSTRUCTION_LATENCY").
local function check_per_atom_cycle_budget(atoms, findings)
local unknown_seen = {}
for _, a in ipairs(atoms) do
local _, unknown_macros = count_atom_cycles(a)
for _, name in ipairs(unknown_macros) do
if not unknown_seen[name] then
unknown_seen[name] = a.line
findings[#findings + 1] = {
atom = a.name, line = a.line,
check = "per_atom_cycle_budget", kind = "warning",
msg = string.format("%s at line %d uses macro `%s` which is not in duffle.INSTRUCTION_LATENCY; cycle count will be +%d per call (best-case). Add an entry to duffle.M.duffle.INSTRUCTION_LATENCY.",
a.name, a.line, name, duffle.UNKNOWN_INSTRUCTION_CYCLES),
}
end
end
end
end
-- ════════════════════════════════════════════════════════════════════════════
-- Per-source validation
-- ════════════════════════════════════════════════════════════════════════════
local function validate(ctx, src)
local source = src.text
local atoms = find_atom_bodies(source)
-- Build per-source Binds_* index + per-atom atom_info lookup. These
-- are local to the validate() call; no cross-source sharing needed --
-- every .c / .h file is validated standalone.
local binds_index = {}
for _, b in ipairs(find_binds_structs(source)) do
binds_index[b.name] = b
end
local atom_infos = find_atom_info(source)
local findings = {}
check_gte_pipeline_fill(atoms, findings)
check_mac_yield_uniformity(atoms, findings)
check_abi_handoff(atoms, atom_infos, binds_index, findings)
check_gpu_portstore_shape(atoms, findings)
check_per_atom_cycle_budget(atoms, findings)
-- Phase 3 cycle-budget output: attach per-path cycle data to each
-- atom. Best-case (no-stall) cycle count with BD-slot absorbed; the
-- `cycles_full` field is the legacy sum-of-all-tokens value (kept
-- for backward compat; over-counts BD-slot nops).
local cycles_by_atom = {}
for _, a in ipairs(atoms) do
local p = analyze_atom_paths(a)
a.paths = p
a.cycles = p.cycles_max -- default for any code that reads .cycles
a.cycles_min = p.cycles_min
a.cycles_max = p.cycles_max
a.cycles_full = p.cycles_full
a.branch_count = p.branches
a.unknown_macros = p.unknown_macros
a.has_loops = p.has_loops
cycles_by_atom[a.name] = p
end
local errors = {}
local warnings = {}
local info = {}
for _, f in ipairs(findings) do
-- Per-finding severity is set by the check via `f.kind`
-- ("error" or "warning"). A `gte_pipeline_fill` finding can be
-- either severity (errors for missing nops; warnings for unknown
-- cmdw macros not in the latency table). Bin by `kind`, not by
-- check name.
if f.kind == "error" then
errors[#errors + 1] = { line = f.line, msg = f.msg }
else
warnings[#warnings + 1] = { line = f.line, msg = f.msg }
end
end
-- Per-source "scanned:" summary line. Includes the source basename
-- for traceability (the old format was just "scanned: N atom
-- bodies; M findings" which is unidentifiable when the module has
-- multiple sources). Sources with 0 atoms (pure-header files like
-- dsl.h, mips.h, etc.) are SKIPPED — the per-module header already
-- lists them in the "Sources:" section, and emitting a noisy
-- "0 atom bodies" line per header is just clutter.
if #atoms > 0 or #findings > 0 then
info[#info + 1] = {
line = 0,
msg = string.format("scanned: %s: %d atom bodies; %d findings",
src.basename, #atoms, #findings),
}
end
-- Phase 3: cycle-budget summary line. Per-path min/max totals.
if #atoms > 0 then
local total_min = 0
local total_max = 0
local max_atom_cyc = 0
local max_atom_name = nil
for _, a in ipairs(atoms) do
local p = a.paths or {}
total_min = total_min + (p.cycles_min or 0)
total_max = total_max + (p.cycles_max or 0)
if (p.cycles_max or 0) > max_atom_cyc then
max_atom_cyc = p.cycles_max
max_atom_name = a.name
end
end
info[#info + 1] = {
line = 0,
msg = string.format("cycles: path-aware min=%d max=%d across %d atoms; worst atom=%s (%d); best-case, no stalls; BD-slot nops absorbed into branch costs",
total_min, total_max, #atoms, max_atom_name or "?", max_atom_cyc),
}
end
return {
atoms = atoms,
findings = findings,
errors = errors,
warnings = warnings,
info = info,
}
end
-- ════════════════════════════════════════════════════════════════════════════
-- Per-source output: build/gen/<basename>.static_analysis.txt
-- ════════════════════════════════════════════════════════════════════════════
local function emit_static_analysis_txt(ctx, src, result)
local out_path = ctx.out_root .. "/" .. src.basename .. ".static_analysis.txt"
if ctx.dry_run then return out_path end
duffle.ensure_dir(ctx.out_root)
local lines = {}
local function add(s) lines[#lines + 1] = s end
add("========================================================")
add("STATIC ANALYSIS PASS -- " .. src.path)
add("========================================================")
add("")
-- Tally atoms by kind for the header summary
local n_atoms, n_bare, n_proc = 0, 0, 0
for _, a in ipairs(result.atoms) do
n_atoms = n_atoms + 1
if a.kind == "comp_bare" then n_bare = n_bare + 1
elseif a.kind == "comp_proc" then n_proc = n_proc + 1
end
end
local header_atoms = string.format("Atoms: %d", n_atoms)
if n_bare > 0 or n_proc > 0 then
header_atoms = header_atoms .. string.format(" (atoms: %d, comp_bare: %d, comp_proc: %d)",
n_atoms - n_bare - n_proc, n_bare, n_proc)
end
add(string.format("%s Findings: %d Errors: %d Warnings: %d",
header_atoms, #result.findings, #result.errors, #result.warnings))
add("")
-- Group findings by atom for readability
local by_atom = {}
for _, f in ipairs(result.findings) do
by_atom[f.atom] = by_atom[f.atom] or {}
by_atom[f.atom][#by_atom[f.atom] + 1] = f
end
if next(by_atom) == nil then
add(" (no findings -- every atom passed all checks)")
else
add("── Findings by atom ─────────────────────────────────────")
for _, a in ipairs(result.atoms) do
local fs = by_atom[a.name]
if fs then
add(string.format(" %s line %d", a.name, a.line))
for _, f in ipairs(fs) do
add(string.format(" [%s] %s", f.check, f.msg))
end
end
end
end
add("")
add("── Errors ──────────────────────────────────────────────")
if #result.errors == 0 then add(" (none)") end
for _, e in ipairs(result.errors) do
add(string.format(" X line %d %s", e.line, e.msg))
end
add("")
add("── Warnings ────────────────────────────────────────────")
if #result.warnings == 0 then add(" (none)") end
for _, w in ipairs(result.warnings) do
add(string.format(" ! line %d %s", w.line, w.msg))
end
add("")
add("── Info ────────────────────────────────────────────────")
for _, i_ in ipairs(result.info) do
add(string.format(" %s", i_.msg))
end
duffle.write_file(out_path, table.concat(lines, "\n") .. "\n")
return out_path
end
-- (Old per-source emit function above kept for backward compat but no
-- longer called from M.run; replaced by `emit_module_static_analysis_txt`
-- which aggregates by directory. Kept because some test harnesses may
-- still call it directly.)
--- Per-directory emit. Aggregates atoms + findings across every source
--- in `dir_sources` and writes a single report to
--- `<out_root>/<dir_basename>.static_analysis.txt`. Called only when
--- at least one atom was found (the caller in M.run handles the skip).
local function emit_module_static_analysis_txt(ctx, dir, dir_sources, atoms, findings, errors, warnings, info)
-- Module basename = last component of `dir` ("code/duffle" -> "duffle").
local dir_basename = dir:match("([^/\\]+)$") or dir
local out_path = ctx.out_root .. "/" .. dir_basename .. ".static_analysis.txt"
if ctx.dry_run then return out_path end
duffle.ensure_dir(ctx.out_root)
local lines = {}
local function add(s) lines[#lines + 1] = s end
add("========================================================")
add("STATIC ANALYSIS PASS -- module " .. dir_basename)
add("========================================================")
add(string.format("Sources: %d", #dir_sources))
for _, s in ipairs(dir_sources) do
add(" " .. s.path)
end
add("")
-- Tally atoms by kind for the header summary
local n_atoms, n_bare, n_proc = 0, 0, 0
for _, a in ipairs(atoms) do
n_atoms = n_atoms + 1
if a.kind == "comp_bare" then n_bare = n_bare + 1
elseif a.kind == "comp_proc" then n_proc = n_proc + 1
end
end
local header_atoms = string.format("Atoms: %d", n_atoms)
if n_bare > 0 or n_proc > 0 then
header_atoms = header_atoms .. string.format(" (atoms: %d, comp_bare: %d, comp_proc: %d)",
n_atoms - n_bare - n_proc, n_bare, n_proc)
end
add(string.format("%s Findings: %d Errors: %d Warnings: %d",
header_atoms, #findings, #errors, #warnings))
add("")
-- Group findings by atom (with source prefix when multi-source module)
local multi_source = #dir_sources > 1
local by_atom = {}
for _, f in ipairs(findings) do
by_atom[f.atom] = by_atom[f.atom] or {}
by_atom[f.atom][#by_atom[f.atom] + 1] = f
end
if next(by_atom) == nil then
add(" (no findings -- every atom passed all checks)")
else
add("── Findings by atom ─────────────────────────────────────")
for _, a in ipairs(atoms) do
local fs = by_atom[a.name]
if fs then
local label = a.name
if multi_source and a.source_path then
label = string.format("%s (%s)", a.name, a.source_path:match("([^/\\]+)$") or a.source_path)
end
add(string.format(" %s line %d", label, a.line))
for _, f in ipairs(fs) do
add(string.format(" [%s] %s", f.check, f.msg))
end
end
end
end
add("")
add("── Errors ──────────────────────────────────────────────")
if #errors == 0 then add(" (none)") end
for _, e in ipairs(errors) do
add(string.format(" X line %d %s", e.line, e.msg))
end
add("")
add("── Warnings ────────────────────────────────────────────")
if #warnings == 0 then add(" (none)") end
for _, w in ipairs(warnings) do
add(string.format(" ! line %d %s", w.line, w.msg))
end
-- Per-atom cycle counts (Phase 3 path-aware). For each atom:
-- min = shortest path through the body (earliest exit)
-- max = longest path through the body (full fall-through)
-- br = number of branch instructions
-- paths = number of distinct paths reached
-- Both min and max are best-case (no stalls); BD-slot nops are
-- absorbed into branch costs (MIPS semantics). The previous "best
-- case" model counted every token separately, which double-counted
-- BD-slot nops; the path-aware model is the MIPS-accurate value.
add("")
add("── Per-atom cycle counts (path-aware, best case, no stalls) ─")
if #atoms == 0 then
add(" (no atoms)")
else
-- Sort atoms by max cycles descending for quick scanning.
local sorted = {}
for _, a in ipairs(atoms) do sorted[#sorted + 1] = a end
table.sort(sorted, function(x, y) return (x.cycles_max or 0) > (y.cycles_max or 0) end)
for _, a in ipairs(sorted) do
local p = a.paths or {}
local br_count = p.branches or 0
local path_count = p.paths or 0
local loops_tag = p.has_loops and " [loop!]" or ""
local unknown_tag = ""
if a.unknown_macros and #a.unknown_macros > 0 then
unknown_tag = string.format(" [unknown: %s]",
table.concat(a.unknown_macros, ", "))
end
local name_label = a.name
if multi_source and a.source_path then
name_label = string.format("%s (%s)", a.name, a.source_path:match("([^/\\]+)$") or a.source_path)
end
if br_count > 0 then
add(string.format(" %-44s min=%4d max=%4d br=%d paths=%d (line %d)%s%s",
name_label, p.cycles_min or 0, p.cycles_max or 0, br_count, path_count,
a.line, loops_tag, unknown_tag))
else
add(string.format(" %-44s %4d cycles (line %d, no branches)%s%s",
name_label, p.cycles_min or 0, a.line, loops_tag, unknown_tag))
end
end
end
add("")
add("── Per-source scan summary ──────────────────────────────")
-- One line per source that contributed atoms. The line includes
-- the source basename + per-source atom count + (if path-aware
-- cycle data is present) the min..max cycle range. Sources with
-- 0 atoms are skipped (they're just header files that declared
-- no MipsAtom_ — they're already listed in the module's
-- "Sources:" section above).
--
-- TODO: per-source finding attribution. Currently we can't tell
-- which source a given error/warning came from (errors/warnings
-- only carry atom-name + line, not source-path). The per-atom
-- cycle section already shows which atoms are in which source
-- via the `(file_basename)` suffix. Adding source attribution to
-- error/warning would be a future enhancement.
for _, src in ipairs(dir_sources) do
local src_atoms = {}
for _, a in ipairs(atoms) do
if a.source_path == src.path then
src_atoms[#src_atoms + 1] = a
end
end
if #src_atoms == 0 then
goto continue
end
local atom_count = #src_atoms
local mn, mx = math.huge, -1
for _, a in ipairs(src_atoms) do
local p = a.paths or {}
if (p.cycles_min or 0) < mn then mn = p.cycles_min or 0 end
if (p.cycles_max or 0) > mx then mx = p.cycles_max or 0 end
end
local path_str
if mx > 0 then
path_str = string.format(" cycles=%d..%d", mn, mx)
else
path_str = string.format(" %d cycles", mn)
end
add(string.format(" %-30s %d atom%s%s",
src.basename, atom_count,
atom_count == 1 and "" or "s",
path_str))
::continue::
end
-- Module-level findings summary (across all sources).
local total_errs = #errors
local total_warns = #warnings
add("")
add(string.format("Module findings: %d error(s), %d warning(s)", total_errs, total_warns))
-- Per-source "scanned:" info lines (each line includes the source
-- basename for traceability).
if #info > 0 then
add("")
for _, i_ in ipairs(info) do
add(string.format(" %s", i_.msg))
end
end
duffle.write_file(out_path, table.concat(lines, "\n") .. "\n")
return out_path
end
-- ════════════════════════════════════════════════════════════════════════════
-- M.run — orchestrator entry
-- ════════════════════════════════════════════════════════════════════════════
--- @class M
local M = {}
--- @param ctx PassCtx
--- @return PassResult
function M.run(ctx)
local outputs = {}
local errors = {}
local warnings = {}
-- Phase 3.7+: aggregate per-DIRECTORY (per-module). One
-- static_analysis.txt per source-directory, emitted only if the
-- directory contains at least one atom. Empty-source directories
-- (e.g. duffle headers with no atoms) produce no report.
--
-- Group sources by `src.dir`. The first component of `dir` is the
-- module name (e.g. "code/duffle" -> "duffle", "code/gte_hello" ->
-- "gte_hello"). Output path is `<out_root>/<module_basename>.static_analysis.txt`.
local by_dir = {}
for _, src in ipairs(ctx.sources) do
by_dir[src.dir] = by_dir[src.dir] or {}
table.insert(by_dir[src.dir], src)
end
for dir, dir_sources in pairs(by_dir) do
-- Run validate() against every source in this directory; accumulate
-- atoms / findings / errors / warnings. The validate() function
-- does its own per-source analysis (Binds indexing, atom
-- discovery, all 5 checks) and attaches path-aware cycle data to
-- each atom it finds.
local all_atoms = {}
local all_findings = {}
local dir_errors = {}
local dir_warnings = {}
local all_info = {}
for _, src in ipairs(dir_sources) do
local result = validate(ctx, src)
-- Tag each atom with its source so the render step can prefix
-- the atom line with "<filename>:" when atoms from multiple
-- sources live in the same module (e.g. lottes_tape.h +
-- atom_dsl.h both declaring atoms).
for _, a in ipairs(result.atoms) do
a.source_path = src.path
all_atoms[#all_atoms + 1] = a
end
for _, f in ipairs(result.findings) do
all_findings[#all_findings + 1] = f
end
for _, e in ipairs(result.errors) do
dir_errors[#dir_errors + 1] = e
end
for _, w in ipairs(result.warnings) do
dir_warnings[#dir_warnings + 1] = w
end
for _, i_ in ipairs(result.info) do
all_info[#all_info + 1] = i_
end
end
-- Skip directories with zero atoms. The previous behavior emitted
-- a "<no atoms>" report per source; the new behavior emits nothing
-- at all (a directory with only headers / no MipsAtom_ is
-- "nothing to report").
if #all_atoms == 0 then
-- Still aggregate errors/warnings so orchestrator sees them,
-- but don't write a file.
for _, e in ipairs(dir_errors) do errors[#errors + 1] = e end
for _, w in ipairs(dir_warnings) do warnings[#warnings + 1] = w end
else
local out_path = emit_module_static_analysis_txt(ctx, dir, dir_sources, all_atoms, all_findings, dir_errors, dir_warnings, all_info)
if out_path then
table.insert(outputs, { static_analysis_txt = out_path })
end
for _, e in ipairs(dir_errors) do errors[#errors + 1] = e end
for _, w in ipairs(dir_warnings) do warnings[#warnings + 1] = w end
end
end
return { outputs = outputs, errors = errors, warnings = warnings }
end
return M