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🎨 Use custom builder classes in ctrl methods #1402

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Merged
denialhaag merged 7 commits into from
Dec 22, 2025
Merged

🎨 Use custom builder classes in ctrl methods #1402

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5eb08dd
🎨 Use custom builder classes in ctrl methods
denialhaag Dec 22, 2025
7467e8f
Fix linter errors
denialhaag Dec 22, 2025
7311f1e
Merge branch 'main' into custom-ctrl
burgholzer Dec 22, 2025
bf63548
♻️ refactor CtrlOp body builder signature
burgholzer Dec 22, 2025
56d0a3b
Fix docsring
denialhaag Dec 22, 2025
a89a9bb
Update changelog
denialhaag Dec 22, 2025
39303f4
Add PR link
denialhaag Dec 22, 2025
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2 changes: 1 addition & 1 deletion mlir/include/mlir/Dialect/QC/Builder/QCProgramBuilder.h
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Original file line number Diff line number Diff line change
Expand Up @@ -842,7 +842,7 @@ class QCProgramBuilder final : public OpBuilder {
* ```
*/
QCProgramBuilder& ctrl(ValueRange controls,
const std::function<void(OpBuilder&)>& body);
const std::function<void(QCProgramBuilder&)>& body);

//===--------------------------------------------------------------------===//
// Deallocation
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2 changes: 1 addition & 1 deletion mlir/include/mlir/Dialect/QCO/Builder/QCOProgramBuilder.h
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Expand Up @@ -1001,7 +1001,7 @@ class QCOProgramBuilder final : public OpBuilder {
*/
std::pair<ValueRange, ValueRange>
ctrl(ValueRange controls, ValueRange targets,
const std::function<ValueRange(OpBuilder&, ValueRange)>& body);
const std::function<ValueRange(QCOProgramBuilder&, ValueRange)>& body);

//===--------------------------------------------------------------------===//
// Deallocation
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5 changes: 3 additions & 2 deletions mlir/lib/Dialect/QC/Builder/QCProgramBuilder.cpp
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Expand Up @@ -419,9 +419,10 @@ QCProgramBuilder& QCProgramBuilder::barrier(ValueRange qubits) {

QCProgramBuilder&
QCProgramBuilder::ctrl(ValueRange controls,
const std::function<void(OpBuilder&)>& body) {
const std::function<void(QCProgramBuilder&)>& body) {
checkFinalized();
CtrlOp::create(*this, loc, controls, body);
CtrlOp::create(*this, loc, controls,
[&](OpBuilder& /*builder*/) { body(*this); });
return *this;
}

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8 changes: 6 additions & 2 deletions mlir/lib/Dialect/QCO/Builder/QCOProgramBuilder.cpp
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Expand Up @@ -578,10 +578,14 @@ ValueRange QCOProgramBuilder::barrier(ValueRange qubits) {

std::pair<ValueRange, ValueRange> QCOProgramBuilder::ctrl(
ValueRange controls, ValueRange targets,
const std::function<ValueRange(OpBuilder&, ValueRange)>& body) {
const std::function<ValueRange(QCOProgramBuilder&, ValueRange)>& body) {
checkFinalized();

auto ctrlOp = CtrlOp::create(*this, loc, controls, targets, body);
auto ctrlOp =
CtrlOp::create(*this, loc, controls, targets,
[this, &body](OpBuilder& /*builder*/, ValueRange targets) {
return body(*this, targets);
});

// Update tracking
const auto& controlsOut = ctrlOp.getControlsOut();
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6 changes: 2 additions & 4 deletions mlir/unittests/pipeline/test_compiler_pipeline.cpp
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Expand Up @@ -1583,10 +1583,8 @@ TEST_F(CompilerPipelineTest, MCX) {
TEST_F(CompilerPipelineTest, MCXNested) {
auto input = buildQCIR([](mlir::qc::QCProgramBuilder& b) {
auto reg = b.allocQubitRegister(3, "q");
b.ctrl(reg[0], [&](OpBuilder& b) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-static-cast-downcast)
static_cast<mlir::qc::QCProgramBuilder&>(b).cx(reg[1], reg[2]);
});
b.ctrl(reg[0],
[&](mlir::qc::QCProgramBuilder& b) { b.cx(reg[1], reg[2]); });
});

ASSERT_TRUE(runPipeline(input.get()).succeeded());
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