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[MG_Pipe, MG_Impl, MG_Remote, MG_Backend] (Disaggregated): P5c rv - set_context_values retires the value-class BARRIER_PULLED rows

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set_context_values (opcode 79, MGPContextValues 96B, kCtxState) carries the active texture
unit, the max touched unit, the fifteen touched-binding-point counts and the five value-class
XFB rows, emitted at validate under the subsystem bit and hash-suppressed as a whole; the
emit gate and the residual-skip gate read the same answer so they can never disagree.
MGPipeApplySetContextValues writes gPipeInputs (the PackState shape). MGPAttribValue grows
24->56B to carry the frontend's converted three views, and MGPipeApplySetVertexAttribDefaults
finally writes them (the 'ignores MGPAttribValue::ValueClass' warning dies), so
GetCurrentVertexAttribute leaves the refusal set. The three texture shutters answer the
applier's own serials under a server-stamped verb (APPLIER_DERIVED), storage answer kept
verbatim elsewhere. FieldOwnership.def: nine value-class rows become derived RECORD_SUPPLIED,
the three shutters APPLIER_DERIVED, the nine object-class rows keep their phases;
FieldOwnershipTest pins that the remaining pulls are exactly the object-class list.
gen_pipe.py gains SCAN_EXEMPT_ACCESSORS with per-name reasons and retiring phases (it repairs
the --check gate the hd merge's two G6 probes had left red).

Evidence: unit 2175/2175; integration-split 111/111; both generators' --check and
--self-test green; rsp on the Xfb capture scenario 36 -> 22; red-once - gating the emission
off turns seven named scenarios red, restoring returns 111/111. CONTRACT-P5C section 5.3.
This commit is contained in:
swung0x48
2026-09-17 09:27:36 -04:00
parent 04650ca35e
commit 82b1f743a7
33 changed files with 899 additions and 278 deletions
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scripts/gen_pipe_field_ownership.py
+16 -13
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@@ -558,10 +558,13 @@ def self_test():
# substring is not decoration: see expect_trip.
# 1. THE HEADLINE CONTROL (exit gate E4): take one field out of the table. It is in no
# class, and that is a build failure rather than a silent default.
dropped = edit(r"X\(GetActiveTextureUnit," + GAP + r"BARRIER_PULLED," + GAP + r"\"[^\"]*\","
+ GAP + r"\"[^\"]*\"\)", "", "remove GetActiveTextureUnit's row")
controls = [("a field in NO class (GetActiveTextureUnit's row removed)",
# class, and that is a build failure rather than a silent default. GetBoundVertexArray is
# the control's field since P5c rv (it keeps a hand-written BARRIER_PULLED row; the value
# rows the first version used are RECORD_SUPPLIED-derived now, so they have no row to
# edit).
dropped = edit(r"X\(GetBoundVertexArray," + GAP + r"BARRIER_PULLED," + GAP + r"\"[^\"]*\","
+ GAP + r"\"[^\"]*\"\)", "", "remove GetBoundVertexArray's row")
controls = [("a field in NO class (GetBoundVertexArray's row removed)",
"field(s) in NO class",
lambda: run(own_text=dropped))]
@@ -575,9 +578,9 @@ def self_test():
lambda: run(own_text=doubled)))
# 3. A row naming something that is not a field at all.
typo = edit(r"X\(GetActiveTextureUnit,", "X(GetActiveTextureUnitt,", "misspell a field name")
typo = edit(r"X\(GetBoundVertexArray,", "X(GetBoundVertexArrayy,", "misspell a field name")
controls.append(("a row naming a non-field",
"GetActiveTextureUnitt, which is not a PipeInputs field",
"GetBoundVertexArrayy, which is not a PipeInputs field",
lambda: run(own_text=typo)))
# 4. A BARRIER_PULLED row with no retiring phase: the debt is only sized if every row
@@ -585,17 +588,17 @@ def self_test():
# THE REPLACEMENT IS NOT A RAW STRING. It was, and the backslashes survived into the
# substitution, mangled the row past ROW_RE's reach and made this control a silent
# duplicate of #1 for a whole round.
unphased = edit(r"(X\(GetActiveTextureUnit," + GAP + r"BARRIER_PULLED,)" + GAP + r"\"[^\"]*\",",
unphased = edit(r"(X\(GetBoundVertexArray," + GAP + r"BARRIER_PULLED,)" + GAP + r"\"[^\"]*\",",
"\\1 \"-\",", "blank a BARRIER_PULLED row's retiring phase")
controls.append(("a BARRIER_PULLED row with no retiring phase",
"GetActiveTextureUnit is BARRIER_PULLED and names no retiring phase",
"GetBoundVertexArray is BARRIER_PULLED and names no retiring phase",
lambda: run(own_text=unphased)))
# 5. A class that is not one of the four.
bogus = edit(r"(X\(GetActiveTextureUnit,)" + GAP + r"BARRIER_PULLED,",
bogus = edit(r"(X\(GetBoundVertexArray,)" + GAP + r"BARRIER_PULLED,",
"\\1 SOMEHOW_FINE,", "introduce a fifth class")
controls.append(("a fifth class",
"GetActiveTextureUnit is in class SOMEHOW_FINE",
"GetBoundVertexArray is in class SOMEHOW_FINE",
lambda: run(own_text=bogus)))
# 6. A sticky forward that lost its own row - the seven most dangerous fields are exactly
@@ -699,9 +702,9 @@ def self_test():
"the field set (%d of %d)" % (total, len(accessors)))
if len(sticky) != 7:
sys.exit("gen_pipe_field_ownership: self-test: Coverage.def no longer has seven sticky fields")
if len(refused) != 9:
if len(refused) != 7:
sys.exit("gen_pipe_field_ownership: self-test: EmittedCallSuppliesTheWholeField refuses %d "
"fields, not the nine the contract's derivation is written against" % len(refused))
"fields, not the seven the contract's derivation is written against" % len(refused))
if trips == 0:
sys.exit("gen_pipe_field_ownership: self-test: no negative control tripped - the gates are "
"not checking anything")
@@ -710,7 +713,7 @@ def self_test():
% (len(controls) - trips, len(controls)))
print("gen_pipe_field_ownership: self-test: %d negative-control trip(s), each asserted against "
"its OWN message; harness control OK; positive control OK "
"(%d fields partitioned, 7 sticky forwards, 9 refusals)" % (trips, total))
"(%d fields partitioned, 7 sticky forwards, 7 refusals)" % (trips, total))
return 0