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[mlir][emitc] Fix bug in ApplyOp translation #155171

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Merged
merged 1 commit into from
Aug 26, 2025
+20 −3
Merged

[mlir][emitc] Fix bug in ApplyOp translation #155171

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4 changes: 1 addition & 3 deletions mlir/lib/Target/Cpp/TranslateToCpp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -782,9 +782,7 @@ static LogicalResult printOperation(CppEmitter &emitter,
if (failed(emitter.emitAssignPrefix(op)))
return failure();
os << applyOp.getApplicableOperator();
os << emitter.getOrCreateName(applyOp.getOperand());

return success();
return emitter.emitOperand(applyOp.getOperand());
}

static LogicalResult printOperation(CppEmitter &emitter,
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19 changes: 19 additions & 0 deletions mlir/test/Target/Cpp/expressions.mlir
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Expand Up @@ -295,6 +295,25 @@ func.func @different_expressions(%arg0: i32, %arg1: i32, %arg2: i32, %arg3: i32)
return %v_load : i32
}

// CPP-DEFAULT: int32_t expression_with_dereference(int32_t [[VAL_1:v[0-9]+]], int32_t* [[VAL_2]]) {
// CPP-DEFAULT-NEXT: int32_t [[VAL_3:v[0-9]+]] = *([[VAL_2]] - [[VAL_1]]);
// CPP-DEFAULT-NEXT: return [[VAL_3]];
// CPP-DEFAULT-NEXT: }

// CPP-DECLTOP: int32_t expression_with_dereference(int32_t [[VAL_1:v[0-9]+]], int32_t* [[VAL_2]]) {
// CPP-DECLTOP-NEXT: int32_t [[VAL_3:v[0-9]+]];
// CPP-DECLTOP-NEXT: [[VAL_3]] = *([[VAL_2]] - [[VAL_1]]);
// CPP-DECLTOP-NEXT: return [[VAL_3]];
// CPP-DECLTOP-NEXT: }
func.func @expression_with_dereference(%arg1: i32, %arg2: !emitc.ptr<i32>) -> i32 {
%c = emitc.expression : i32 {
%e = emitc.sub %arg2, %arg1 : (!emitc.ptr<i32>, i32) -> !emitc.ptr<i32>
%d = emitc.apply "*"(%e) : (!emitc.ptr<i32>) -> i32
emitc.yield %d : i32
}
return %c : i32
}

// CPP-DEFAULT: bool expression_with_address_taken(int32_t [[VAL_1:v[0-9]+]], int32_t [[VAL_2:v[0-9]+]], int32_t* [[VAL_3]]) {
// CPP-DEFAULT-NEXT: int32_t [[VAL_4:v[0-9]+]] = 42;
// CPP-DEFAULT-NEXT: return &[[VAL_4]] - [[VAL_2]] < [[VAL_3]];
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