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Merge remote-tracking branch 'origin/topic/vern/ZAM-maint.May25'

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* origin/topic/vern/ZAM-maint.May25:
  fix for crash when interpreting transformed ASTs that include multi-field record assignments/additions
  Remove unused ZAM compiler method
This commit is contained in:
Tim Wojtulewicz 2025-05-30 13:06:42 -07:00
commit 3282bbc429
7 changed files with 44 additions and 6 deletions
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6
CHANGES
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@ -1,3 +1,9 @@
8.0.0-dev.299 | 2025-05-30 13:06:42 -0700
* fix for crash when interpreting transformed ASTs that include multi-field record assignments/additions (Vern Paxson, Corelight)
* Remove unused ZAM compiler method (Vern Paxson, Corelight)
8.0.0-dev.296 | 2025-05-30 12:16:27 -0700
* Add utility methods to make CMake summary output nicer (Tim Wojtulewicz, Corelight)

2
VERSION
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@ -1 +1 @@
8.0.0-dev.296
8.0.0-dev.299

3
src/script_opt/Expr.cc
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@ -2951,6 +2951,8 @@ RecordFieldUpdatesExpr::RecordFieldUpdatesExpr(ExprTag t, const std::vector<cons
ASSERT(stmt_pool.count(s) > 0);
stmt_pool.erase(s);
}
SetType(base_type(TYPE_VOID));
}
RecordFieldUpdatesExpr::RecordFieldUpdatesExpr(ExprTag t, ExprPtr e1, ExprPtr e2, std::vector<int> _lhs_map,
@ -2958,6 +2960,7 @@ RecordFieldUpdatesExpr::RecordFieldUpdatesExpr(ExprTag t, ExprPtr e1, ExprPtr e2
: BinaryExpr(t, std::move(e1), std::move(e2)) {
lhs_map = std::move(_lhs_map);
rhs_map = std::move(_rhs_map);
SetType(base_type(TYPE_VOID));
}
ValPtr RecordFieldUpdatesExpr::Fold(Val* v1, Val* v2) const {

2
src/script_opt/ZAM/Low-Level.cc
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@ -183,6 +183,4 @@ const Stmt* ZAMCompiler::LastStmt(const Stmt* s) const {
return s;
}
ZAMStmt ZAMCompiler::PrevStmt(const ZAMStmt s) { return ZAMStmt(s.stmt_num - 1); }
} // namespace zeek::detail

3
src/script_opt/ZAM/Low-Level.h
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@ -31,9 +31,6 @@ int InternalAddVal(ZInstAux* zi, int i, Expr* e);
// global/capture store for this instruction.
const ZAMStmt AddInst(const ZInstI& inst, bool suppress_non_local = false);
// Returns the statement just before the given one.
ZAMStmt PrevStmt(const ZAMStmt s);
// Returns the last (interpreter) statement in the body.
const Stmt* LastStmt(const Stmt* s) const;

3
testing/btest/Baseline/opt.regress-record-multi-assign/output Normal file
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@ -0,0 +1,3 @@
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
[a=37, b=47]
[a=4, b=3]

31
testing/btest/opt/regress-record-multi-assign.zeek Normal file
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@ -0,0 +1,31 @@
# @TEST-DOC: Regression test for assigning multiple fields in a record
# @TEST-REQUIRES: test "${ZEEK_USE_CPP}" != "1"
# @TEST-EXEC: zeek -b -O xform %INPUT >output
# @TEST-EXEC: btest-diff output
type R: record {
a: count;
b: count;
};
function multi_add(x: R, y: R): R
{
y$a += x$b;
y$b += x$a;
return y;
}
function multi_assign(x: R, y: R): R
{
y$a = x$b;
y$b = x$a;
return y;
}
event zeek_init()
{
local x = R($a=3, $b=4);
local y = R($a=33, $b=44);
print multi_add(x, y);
print multi_assign(x, y);
}